Entries |
Document | Title | Date |
20080200590 | Water-Soluble Copolymers Containing Sulfo Groups, Method For The Production And Use Thereof - The invention relates to water-soluble copolymers used as water retention agents, stabilizers and rheology modifiers in aqueous building material systems based on hydraulic binders such as cement, lime, plaster, anhydrite etc. and in water-based paint and coating systems. The inventive copolymers are highly effective water retention agents even when used in relatively small amounts. They also exhibit excellent air pore stability and adhesiveness. They can also be used as stabilizers in building material and paint systems. | 08-21-2008 |
20080227890 | Cement Grinding Aid - The invention relates to an aqueous polymer composition which is used in the form of a cement grinding aid and makes it possible to effectively reduce the grinding time and to obtain cements exhibiting excellent characteristics. A cement grinding aid containing a combination of polymer A and known cement grinding aids is also disclosed. | 09-18-2008 |
20080227891 | METHODS FOR MAKING CONCRETE COMPOSITIONS - A method of making a cementitious composition that includes combining cement, water and optionally aggregates and optionally additives to form an aqueous cement slurry; adding expanded polymer particles to the aqueous cement slurry; and forming a dispersion of expanded polymer particles in the aqueous cement slurry. The expanded polymer particles have an average particle diameter of from 200 μm to 5,000 μm, a bulk density of from 0.02 g/cc to 0.64 g/cc, and an aspect ratio of from 1 to 3. | 09-18-2008 |
20080242769 | NANOMODIFIED CONCRETE ADDITIVE AND HIGH PERFORMANCE CEMENT PASTE AND CONCRETE THEREFROM - A concrete additive for a reinforced concrete composite is provided. The additive can have an exfoliated clay having an exfoliated layered silicate plate comprising structure, and at least one of an oligomer or polymer linking at least a portion of said silicate plate comprising structure. The additive can have a dispersant between the silicate plates. The clay can include sodium or calcium montmorillonite or a phosphatic clay. The oligomer or polymer can include polyvinyl alcohol. | 10-02-2008 |
20080269376 | Amphiphilic Polymer Compounds, Method For the Production Thereof and Their Use - The invention describes amphiphilic polymer compounds which are prepared by
| 10-30-2008 |
20080275166 | Method for Producing (Poly-C2-C4 Alkylene Glycol)-Mono(Meth)Acrylic Esters - The present invention relates to a process for the preparation of poly-C | 11-06-2008 |
20080275167 | Coating for wall construction - A coating for wall construction is provided whereby a level 5 finish may be obtained without the need for a finishing coat or final skim coat. The coating may be applied to drywall elements prior to installation and is compatible with jointing materials such that a substantially homogeneous surface may be obtained after the drywall elements are assembled with jointing material and the jointing material is dried. The coating formulation includes a noncellulosic thickener, a binder, a mineral filler and water. A method for the construction of interior walls and a construction assembly for interior walls is further provided. | 11-06-2008 |
20080287569 | Cement Additive and Cement Composition Using the Same - A cement additive is provided which has a good autogenous shrinkage reducing effect and reduces the viscosity of concrete, and wherein compound A, which is a polycarboxylate copolymer, and ether compounds are indispensable components. | 11-20-2008 |
20080287570 | METHOD OF MAKING AND USE OF A HEAVY DUTY PAVEMENT STRUCTURE - The present invention is directed to a heavy duty pavement structure comprising an open-graded asphalt layer fortified with a non-segregating grout mixture. The heavy duty pavement structure is made through the steps including forming an open-graded asphalt layer and then fortifying the layer with a non-segregating grout mixture that includes a predetermined amount of portland cement, sand and cement binder system. | 11-20-2008 |
20080300343 | Comb Polymers and Their Use as Additives for Preparations of Mineral Binders - The present invention relates to novel comb polymers which bear poly-C | 12-04-2008 |
20080300344 | Adjuvant for Hydraulic Compositions - The invention provides an admixture for a hydraulic binder composition comprising at least one cationic polymer and at least one anionic polymer, at least one of these polymers having a comb type of structure, wherein the mass ratio of the anionic polymer/cationic polymer is from 99.9/0.1 to 60/40. | 12-04-2008 |
20080319106 | Novel Hydrodispersible Waterproofing Agent, the Preparation Thereof, and the Use of the Same in the Field of Construction Especially in Mineral Binding Agent Compositions - The invention relates to a novel hydrodispersible waterproofing agent based on at least one water-insoluble and water-immiscible waterproofing agent which has previously been emulsified in a hydrosoluble amphiphilic copolymer composition. The invention also relates to the solid forms of said composition obtained by drying, and to the use thereof in a water-insoluble film-forming polymer composition or in a mineral binding agent composition for applications in the field of construction. | 12-25-2008 |
20090005470 | COMPOSITIONS OF CONTROLLED-BREAKAGE CATIONIC ASPHALT MICROSURFACING EMULSIONS - Compositions of controlled-breakage cationic asphalt microsurfacing emulsions especially formulated to provide extra-rapid setting on being deposited on paving in coating operations which may be realised during the day, or during the night, under particularly severe ambient conditions for this type of operation, that is to say at temperatures below 15° C. with relative air humidity exceeding 50%, but limited to 65%. Said compositions provide extra-rapid setting because they yield wet cohesion results exceeding 25 kgf-cm in one hour when tested by method ISSA TB-139 under the said ambient conditions of temperature and humidity. | 01-01-2009 |
20090018240 | Use of Water-Soluble or Water-Dispersible Polymers as Additives in
Mineral Building Materials - The present invention relates to the use of water-soluble or water-dispersible polymers as additives in mineral building materials. The novel polymers are obtainable by polymerizing alkoxylated derivatives of 3-allyloxy-1,2-propanediol with ethylenically unsaturated mono- or dicarboxylic acids or the anhydrides, esters or mixtures thereof and, if appropriate, with one or more further ethylenically unsaturated monomers C. | 01-15-2009 |
20090036573 | CEMENT-BASED COMPOSITION FOR EXTRUSION MOLDING, PROCESS FOR PRODUCING THE SAME, AND CEMENT PRODUCT - In a cement-based extrusion molding composition, deterioration of productivity due to fluctuation of unburned carbon is prevented by ensuring excellent dispersibility of coal ash mainly composed of fly ash, the extrusion pressure in extrusion molding is reduced, and the strength of a molded product in the same curing condition as in single use of silica sand or silica stone powder is developed. The cement-based extrusion molding composition of the invention comprises: 100 parts by weight of a mixture comprising a hydraulic material, a silicious raw material including fly ash as an essential component and a fiber; 0.1 to 1.5 parts by weight of an extrusion aid; 15 to 45 parts by weight of water; 0.01 to 2.0 parts by weight of a nitrogenous polyoxyalkylene derivative represented by formula (1); and 0.01 to 2.0 parts by weight of a copolymer having a composition of 50 to 99 wt % of a constituting unit (a) represented by formula (2), 1 to 50 wt % of a constituting unit (b) represented by formula (3) and 0 to 30 wt % of a constituting unit (c) derived from another copolymerizable monomer. | 02-05-2009 |
20090054557 | CEMENT ADMIXTURE - The present invention aims at providing a cement admixture having superior water-reducing performance, along with no decrease in slump and slump flow caused by decrease in fluidity of a cement composition over time. A cement admixture is to be provided, which cement admixture comprises two or more members of polycarboxylic acid-based polymers, wherein said cement admixture comprises at least one polycarboxylic acid-based polymer (A) having a constitutional unit represented by the following formula (1): | 02-26-2009 |
20090054558 | Pulverulent Polycondensation Products - Pulverulent polycondensation products are described, consisting of
| 02-26-2009 |
20090069461 | Additive for Cement Composition Containing Fly Ash and Cement Composition - An object is, in a fly ash-containing cement composition, to disperse fly ash well with addition of a small amount of additive to prevent the deviation of flowability of the cement composition due to the change of unburned carbon content. An additive for a fly ash-containing cement composition includes (A) a nitrogenous polyoxyalkylene derivative represented by formula (1) and (B) a polycarboxylic acid series copolymer having a polyoxyalkylene chain as essential components. R | 03-12-2009 |
20090093571 | Synthetic graft having a glass network - A synthetic graft has a glass composition comprises silicon as a network former and Sr as a stable isotope acting as a network modifier. The composition contains calcium as a network modifier and Zn acting as a as either a network modifier or as a network former. The glass composition may be mixed with a solution of polyalkenoic acid to provide advantageous glass polyalkenoate cements (GPCs). These cements are particularly effective for use as bone cements and fillers in the human skeleton as they set at room temperature, have similar strengths to bone, chemically bond to both bone and surgical metal, and release therapeutic ions, which can assist in wound healing and bone re-growth. | 04-09-2009 |
20090111913 | Use of Polycarboxylate-Based Flow Agents for Anhydrite-Based Flow Screeds - A plasticizer based on polycarboxylates is proposed, where the polycarboxylate component is a water-soluble, branched-chain and carboxyl-group-carrying copolymer which has at least one of the structural features selected from nitrogen-functionalized side chain and also, as linkage unit between main chain and side chain, an ester linkage, ether linkage and amide and/or imide linkage. The polycarboxylate component the molar ratio of acid groups to the side-group-carrying monomer is ≧2:1 and/or the side chain length n is <25, and the self-levelling screed has a sulphate content of ≧0.5% by weight, based on the total weight of the anhydrite fraction. The polycarboxylate component has a backbone provided with anionic functional groups and at least one non-ionic side chain has, preferably, an average molecular weight M | 04-30-2009 |
20090124728 | Providing Freezing and Thawing Resistance to Cementitious Compositions - An improved freeze-thaw durability cementitious composition is provided that uses at least partially degradable polymeric particles that are blended directly into the cementitious composition mixture. The degradable polymeric particles provide void spaces in the cementitious material matrix, and such void spaces act to increase freeze-thaw durability of the cementitious material. | 05-14-2009 |
20090131560 | ULTRARAPID HARDENING CEMENT COMPOSITION AND DISPERSANT FOR ULTRARAPID HARDENING CEMENT COMPOSITION - To provide an ultrarapid hardening cement composition with high strength, the composition having: excellent fluidity; excellent usable time; and excellent initial strength under low temperature atmosphere as well as under general temperature atmosphere, and improving strength and durability of a hardening product of the composition. An ultrarapid cement hardening composition comprising: an ultrarapid hardening cement (A) comprising a calcium aluminate; and a cement dispersant (B), wherein the cement dispersant (B) comprises a copolymer having: a repeating unit derived from a monomer represented by the following formula (1): | 05-21-2009 |
20090163622 | Copolymers Based On Unsaturated Monocarboxylic or Dicarboxylic Acid Derivatives and Oxyalkylene Glycol Alkenyl Ethers, Process for Preparing Them and Their Use - Copolymers based on unsaturated mono- or dicarboxylic acid derivatives, oxyalkylene glycol alkenyl ethers and optionally vinylic polyalkylene glycol or ester compounds are described and also their use as additives for aqueous suspensions based on mineral or bituminous binders, in particular cement, gypsum, lime, anhydrite, or other calcium sulphate-based binders, and based on pulverulent dispersion binders. The copolymers according to the invention impart to the aqueous binder suspensions a very good dispersing and liquefying action with, at the same time, simultaneous excellent processing properties. Moreover, the oxyalkylene glycol alkenyl ethers according to the invention are industrially relatively simple and inexpensive to prepare and need comparatively low initiator concentrations in the copolymerization. | 06-25-2009 |
20090186963 | Additive composition for mortars, cements and joint compounds and cementitious compositions made therefrom - An additive composition for mortars, exterior insulation finish systems, self-leveling compounds and joint compounds is disclosed. The additive composition contains a nitrogen-containing polymer and a reactive agent capable of forming a crosslinking reaction with the nitrogen-containing polymer. Small amounts of the additive composition contained in a product cannot only increase one or more properties of the product but can also minimize the use of redispersible polymers in the product. | 07-23-2009 |
20090192242 | Dispersion compositions for tile adhesives - The invention relates to an aqueous dispersion and dispersion powder composition for highly flexible, waterproof, hydraulically binding tile adhesives having an extended open time, and containing an emulsion polymer (A) having a glass transition temperature (T | 07-30-2009 |
20090197992 | COATING COMPOSITION - A coating composition comprising a first part, and a second part, in which the first part includes gypsum and/or cement dispersed in a water miscible organic solvent, and the second part includes a water soluble polymer, the first and second parts being mixable so as to form a hardened coating composition. | 08-06-2009 |
20090234046 | Concrete and mortar admixture - The invention relates to a copolymer, said copolymer consisting of, as structural units, (i) 0.1 to 50 mole % of units derived from an ethylenically unsaturated monomer (a) having per one mole thereof 25 to 300 moles of C | 09-17-2009 |
20090239977 | SELF-LEVELING CEMENTITIOUS COMPOSITION WITH CONTROLLED RATE OF STRENGTH DEVELOPMENT AND ULTRA-HIGH COMPRESSIVE STRENGTH UPON HARDENING AND ARTICLES MADE FROM SAME - A self-leveling cementitious mixture with excellent flow properties and which hardens with a controlled rate of strength development to an ultra-high compressive strength composite composition for use in making articles such as cementitious armor panel with ballistic and blast resistant properties including: a continuous phase resulting from the curing of an aqueous mixture, in the absence of silica flour, of inorganic cement binder, inorganic mineral filler having a particle size of about 150-450 microns, pozzolanic mineral filler, polycarboxylate based self-leveling agent and water. The cementitious mixture may include alkanolamine, such as triethanolamine, and acid or acid salt, such as tartaric acid. The cementitious composition may be reinforced with reinforcing fibers, e.g. glass fibers, in an amount of about 0.5-6.0% by volume of the overall cementitious composition. The fibers are uniformly dispersed in the cementitious composition before it is cured to form a final cementitious armor panel. | 09-24-2009 |
20090286903 | ANTI-EFFLORESCENCE AGENT, USE IN A CEMENT MATRIX, MATRIX OBTAINED - An anti-efflorescence agent, its use in a cement matrix, and the matrix obtained. | 11-19-2009 |
20090292045 | MODIFIERS FOR GYPSUM SLURRIES AND METHOD OF USING THEM - An improved gypsum slurry that includes water, calcium sulfate hemihydrate, a polycarboxylate dispersant and a modifier. The modifier is chemically configured to improve the efficacy of the polycarboxylate dispersant. Preferred modifiers include cement, lime, slaked lime, soda ash, carbonates, silicates and phosphates. | 11-26-2009 |
20090306250 | CONSTRUCTION MATERIAL AND METHOD OF PREPARATION - A construction material that includes gypsum and a heat fusion catalyst which includes polyvinyl acetate and a polymer, plus a chemical agent for maintaining a stable emulsion of the polyvinyl acetate and polymer. Cement and/or aggregate materials may be added to the gypsum. The material may be prepared by mixing the catalyst with the powder portion, and then either molding it into a building panel or applying it as a coating on a building member. | 12-10-2009 |
20090306251 | FLY ASH-BASED FLOOR PATCHING COMPOSITION - A floor patching composition for mixing with water to produce a self-leveling slurry that quickly hydrates to form an acceptable patch comprising a dry mixture of (1) Class C fly ash, (2) a calcium aluminate cement, (3) an organic binder along with (4) a cellulose ether, in part to facilitate mixing of the dry ingredients and preferably (5) an antimicrobial preservative and (6) metakaolin clay. | 12-10-2009 |
20090312460 | Copolymer Admixture System for Workability Retention of Cementitious Compositions - A non-ionic polyether-polyester copolymer for extending workability to a cementitious mixture containing hydraulic cement and water, wherein the copolymer includes residues of at least the following monomers:
| 12-17-2009 |
20100010120 | USE OF A RHEOLOGICAL ADDITIVE IN THE MANUFACTURE BY VIBROCOMPACTION OF A WATER AND HYDRAULIC BINDER BASED FORMULATION, FORMULATION OBTAINED - The present invention consists in the use, in a process of manufacture of a composition with a water and hydraulic binder base, of a rheological additive characterised in that it is an emulsion of at least one non-cross-linked copolymer, consisting of:
| 01-14-2010 |
20100016476 | Cement Additive and Cement Composition Using the Same - A cement additive is provided which has a good autogenous shrinkage reducing effect and reduces the viscosity of concrete, and wherein compound A, which is a polycarboxylate copolymer, and ether compounds are indispensable components. | 01-21-2010 |
20100069532 | PROCESS FOR PREPARING POLYMERIZABLE CARBOXYLIC ESTERS WITH ALKOXY GROUPS - A process for preparing free-radically polymerizable carboxylic esters by reacting ethyllenically unsaturated carboxylic acids, carboxylic anhydrides or carbonyl halides (referred to collectively as carboxylic acid component) with a hydroxyl compound composed of at least 60% by weight of C | 03-18-2010 |
20100087569 | Hydrophobically Modified Cationic Copolymers - The invention relates to a hydrophobically modified cationic copolymer which has at least three different structural units. Particularly in combination with anionic surfactants, a considerable improvement in the water retention in aqueous building material systems based on hydraulic binders, such as cement, can be achieved even in the case of high salt loads. | 04-08-2010 |
20100087570 | ADDITIVE FOR HYDRAULICALLY SETTING SYSTEMS, THE HYDRAULICALLY SETTING MIXTURES AND THE USE THERE OF - The invention relates to an additive for hydraulically setting systems based on modified polycarboxylates and water-soluble ethers of high polymeric polysaccharides, optionally containing further standard additives, characterized by a content of a) a water-soluble ether of cellulose or a cellulose-like compound with a viscosity of at least approximately 1,000 mPas, particularly at least approximately 2,000 mPas, measured as a 2% aqueous solution with a Brookfield viscosimeter at 20° C. and 20 rpm and b) a polycarboxylate, whose main chain is linked by means of ester, ether, imide and/or amide groups with polyethylene oxide-containing side chains. The invention also relates to hydraulic mixtures having a content of the above additive and the use thereof. Using the additive according to the invention in hydraulically setting systems comparable and in part much better characteristics are obtained compared with casein-containing formulations, such as a rheological flow behaviour comparable to casein, but with improved water retention. | 04-08-2010 |
20100105811 | SEMI-MINERAL PAINT COMPOSED OF THREE AGGLUTINANTS OR FILM-FORMING AGENTS - A semi-mineral water-based paint that is virtually inorganic, includes a water-dispersible acrylic copolymer that is elastic and has a low absorption capacity and that is adapted to be mixed with a cement, an emulsion selected from the group consisting of an acrylic, urethane, vinyl and epoxy alkyd modified emulsion, additives, an inert reinforcement filler, colouring pigments, and a cement base if it is in a liquid state, and water if it is in a solid state, such that a manageable paste formed of a putty is obtained that can regulate, paint and decorate at the same time. | 04-29-2010 |
20100120948 | PROCESS FOR GRINDING AN AN AQUEOUS MEDIUM OF MINERAL MATTER AND BINDERS USING A REVERSE EMULSION OF A POLYMER ACRYLAMIDE WITH AN ACRYLIC MONOMER - The invention consists of a process for preparation of self-binding pigmentary particles, dry or in aqueous suspension or dispersion, using in a particular stage of the process a reverse emulsion formed from a dispersion in an oily phase of water particles and of at least one polymer of acrylamide with an acrylic monomer. | 05-13-2010 |
20100137476 | DISPERSANT FOR PLASTER COMPOSITIONS - The present invention relates to the use of a polymer P as a dispersant, particularly as a liquefier, for plaster compositions as well as plaster compositions comprising the polymer P. The polymer P comprises at least one acid unit, at least one ester unit, and at least one amide unit, and the ratio of the acid units to the ester and amide units is between 2 and 6. | 06-03-2010 |
20100137477 | WORKABILITY OF AN AQUEOUS FORMULATION WITH A HYDRAULIC BINDER BASE USING A COMBINATION OF COMB-BRANCHED POLYMERS - The invention pertains to improving the workability of an aqueous formulation with a hydraulic binder base using a combination between at least one comb-branched copolymer having a (meth)acrylic skeleton, onto which are grafted side-chains terminated by a hydrophilic group, and at least one comb-branched copolymer having a (meth)acrylic skeleton, onto which are grafted side-chains terminated by a hydrophobic group. | 06-03-2010 |
20100144929 | Liquid solventless synthetic-rubber-based composition - A synthetic-rubber-based composition that consists of a low-molecular-weight rubber selected from polybutadiene comprising about 75% to about 92% cis-1,4 units, sulfur, a vulcanization accelerator, and an active filler wherein the sulfur, accelerator, and active filler are each present in the form of powder having a particular particle-size range. Additionally, this composition may be used to form coatings and rubber concretes. | 06-10-2010 |
20100152333 | Chemically Resistant Glass Composition For The Manufacture Of Glass Reinforcing Strands - The present invention relates to a chemically resistant glass composition for the production of reinforcing strands which comprises the following constituents within the limits defined below, expressed in mol %: SiO | 06-17-2010 |
20100168282 | DISPERSION COMPRISING INORGANIC PARTICLES, WATER, AND AT LEAST ONE POLYMERIC ADDITIVE - The present invention relates to a dispersion comprising inorganic particles, water and at least one water-soluble polymer, wherein the water-soluble polymer comprises repeating units derived from monomers having at least one quaternary ammonium group, repeating units derived from monomers having at least one carboxy group and repeating units derived from ester monomers which contain polyalkoxyalkylene groups and have a number average molecular weight in the range from 3000 g/mol to 10 000 g/mol. | 07-01-2010 |
20100190888 | Polymer-Tempered Construction Material Mixtures - The invention relates to polymer-modified cement-containing building material dry mixes which contain a redispersible polymer powder, water retention agents based on polysaccharide structures, a calcium-containing setting accelerator and a superabsorbent copolymer. | 07-29-2010 |
20100190889 | POLYALKENOATE CEMENT COMPOSITIONS AND METHODS OF USE IN CEMENTING APPLICATIONS - Methods and compositions for cementing applications. In one embodiment, the present invention provides a method of cementing comprising the steps of: providing a cement composition that comprises: a polyelectrolyte and/or an alkenoic acid first monomer; a filler; and a crosslinking agent; placing the cement composition in a desired location; and allowing the cement composition to set therein. | 07-29-2010 |
20100197833 | Rheology Stabilizer for Cementitious Compositions - An admixture formulation of at least one polycarboxylate dispersant and at least one naphthalene dispersant is provided. When the polycarboxylate dispersant and the naphthalene dispersant of the admixture formulation are combined at various ratios the admixture formulation reduces the tendency for bleed and segregation in cementitious mixtures without increasing water demand, retarding setting, increasing water sensitivity, promoting high viscosity, or reducing flow retention. | 08-05-2010 |
20100234491 | METHOD AND MATERIAL FOR MANUFACTURING FIBER CEMENT BOARD - The various embodiments herein provide a method and materials to produce non-asbestos Fiber Cement Board (FCB). According to one embodiment herein, a new material including Cement (60%-75% by weight), Acrylic fiber (1%-4% by weight), Nano silicate (1%-4% by weight), slake lime stone powder (5%-20% by weight), waste cardboard pulp paper (3%-12% by weight) and some polymeric additives are used to make FCB in the Hatcheck process. In another embodiment, a method to make FCB using this method in the Hatcheck process, only some small changes are needed. According to another embodiment, the FCB produced in this method can be used for cladding, internal wall and external walls. | 09-16-2010 |
20100249281 | USE OF GRAFTED SMA COPOLYMERS IN LIQUID COMPOSITIONS - The subject of the invention is the use of a grafted copolymer derived from the grafting: —of an SMA copolymer (II) derived from the copolymerization of at least two monomers, (i) the first monomer being chosen from styrene and its derivatives and (ii) the second monomer including at least one anhydride function, —with either (iii) M-R—X molecules (I) including at least one pattern (M) chosen from patterns (1) to (4): formula (I), with A=oxygen, sulfur or NH; and including at least one chemical function (X) chosen from among halogen, a primary or secondary amine function, an alcohol function, a thiol function, a carboxylic acid function or a derivative of said function and an epoxy function, the pattern (M) and said function (X) being connected by a rigid or flexible chain (R); namely (iv) molecules belonging to the family of triazoles; used as the majority composition or additive of liquid compositions intended to be applied in or on sheets of paper or cardboard, onto hard surfaces, on leather or on textiles. | 09-30-2010 |
20100267864 | MAN-MADE MINERAL FIBRE FOR THREE-DIMENSIONAL REINFORCEMENT OF A CEMENT PRODUCT - The present invention provides a bicomponent fiber for three-dimensional reinforcement of a cement product characterized in that it represents a coaxial core-coat fiber wherein the core comprises a thermoplastic polymer and the coat either comprises thermoplastic polymer resistant to environment having pH>11 and one or more hydrophilic and/or surface active substance(s) in an amount of 3 to 30%% of the total weight of the coat, or the coat comprises thermoplastic polymer resistant to environment having pH>11 grafted with active or unsaturated monomers of one or different kinds constituting 3 to 25% of total weight of the coat, wherein the surface tension of the coat is at least 45 mN/m. The invention also provides a method for production of said fiber, a cement product comprising such fiber and a method of production of said cement product. | 10-21-2010 |
20100273916 | ADMIXTURE FOR HYDRAULIC BINDER - A method includes adding at least one copolymer or a salt thereof acting as a plasticizer, blocking agent, or both a plasticizer and a blocking agent, to a calcium sulphate-based hydraulic binder. The copolymer includes an acrylic acid or a poly(oxy)alkylene copolymer. | 10-28-2010 |
20100311873 | FIBER MODIFIED LAYER AND METHODS OF MAKING AND USING SAME - A composition for use in a fiber modified layer, comprising an aggregate material, a binder, and a plurality of fibers, wherein each fiber has a length of greater than 0.25 inches. Also provided is a method of selecting a fiber modified layer for applying on an existing surface, comprising the steps of: providing a binder mixture having an effective amount of an aggregate material, a binder, and a plurality of fibers, wherein each of the plurality of fibers has a length greater than 0.25 inches; applying the binder mixture to a selected surface to form a fiber modified proposed layer; testing the fiber modified proposed layer for fatigue or crack resistant properties; and selecting the binder mixture for application on the existing surface for performance if the fiber modified proposed layer has fatigue or crack resistant properties. | 12-09-2010 |
20100324175 | Polymer for Ultra-High Strength Concrete Admixture and Method for Preparing the Same - Disclosed are a polymer for ultra-high strength concrete admixture and a method for preparing the same, more specifically, a polymer for ultra-high strength concrete admixture prepared by polymerizing two or more copolymers based on unsaturated organic monomers having urethane derivatives, and and a method for preparing the same. Also, the concrete admixture comprising the polymer exhibits high water-reducing ability, thus improving workability and strength of the concrete composition. In addition, the concrete admixture exhibits defoaming capability, thus enabling easy control of air amount of the concrete composition without using any defoaming agent. | 12-23-2010 |
20110009529 | Copolymer Having Polyether Side Chains And Dicarboxylic Acid Derivative Components - The invention relates to a copolymer which can be used as a superplasticizer for hydraulic binders and comprises 30 to 47 mol % of a (meth)allyl alcohol polyether derivative structural unit and 53 to 70 mol % of a maleic acid derivative structural unit. | 01-13-2011 |
20110015306 | CEMENTITIOUS COMPOSITIONS FOR DECREASING THE RATE OF WATER VAPOR EMISSIONS FROM CONCRETE AND METHODS FOR PREPARING AND USING THE SAME - Cementitious compositions and processes for preparing and using the cementitious compositions are provided. The cementitious compositions are characterized by the property of a reduced or an attenuated water vapor emission of a hardened concrete formed therefrom. | 01-20-2011 |
20110021668 | ADDITIVE COMPOSITION FOR HYDRAULIC COMPOSITION - This invention relates to an additive composition for a hydraulic composition, which contain a specific copolymer (A) and a compound (B) selected from a specific glycol ether-based compound and a specific glycerin derivate-based compound. | 01-27-2011 |
20110028607 | Cement Compositions Comprising Stevia Retarders - Methods and compositions that include a method of cementing comprising providing a cement composition comprising water, a hydraulic cement, and an additive comprising at least one additive selected from the group consisting of a stevia retarder and inulin; placing the cement composition in a subterranean formation; and permitting the cement composition to set in the formation. | 02-03-2011 |
20110034592 | Aqueous Solution Containing Copolymers with Polyether Side Chains - The invention relates to a process for the preparation of an aqueous solution comprising 30 to 95% by weight of water and 5 to 70% by weight of a copolymer dissolved in the water by free radical solution polymerizations of an isoprenol polyether derivative with an acrylic acid derivative, so that the copolymer has 20 to 45 mol % of an isoprenol polyether derivative structural unit and 55 to 80 mol % of an acrylic acid derivative structural unit. The aqueous solution is suitable as a superplasticizer for hydraulic binders. | 02-10-2011 |
20110039984 | RHEOLOGY INFLUENCING ADDITIVE FOR MINERAL BUILDING MATERIALS - The present invention pertains to a rheological additive to replace casein in minerally setting building material compounds, characterized in that the rheological additive contains at least two different dispersing agents and at least one stabilizer, or at least one dispersing agent and at least two different stabilizers, wherein said at least one dispersing agent is or said at least two dispersing agents are selected from the group of lignin sulfonate, polycarboxylate, polycarboxylate ether, melamine formaldehyde sulfonate, alkylphenol glycol ether and/or naphthaline sulfonates, and said at least one stabilizer is or said at least two stabilizers are selected from the group of modified or unmodified, fully or partially hydrolyzed polyvinyl alcohol, polyvinyl acetal, polyvinyl pyrrolidone, polyalkylene glycol, polyalkylene oxide, agar-agar, carob seed grain, pectin, poly(meth)acrylate and/or (meth)acrylate thickeners, poly(meth)acrylamides, polyurethanes, associative thickeners, gelatine and/or soy protein. In addition, a process for the preparation of the additive, the use of the same, as well as minerally setting building material compounds containing the rheological additive are described. | 02-17-2011 |
20110046269 | NOVEL POLYMER AND CEMENT ADMIXTURE USING THE SAME - The present invention provides a novel polymer, and a mixture and a cement admixture thereof. The cement admixture has higher dispersibility compared to the previous ones. The novel polymer of the present invention has a different structure from the conventional copolymers used for cement admixtures, using an unsaturated carboxylic acid monomer and an unsaturated polyalkylene glycol monomer as the monomer components. | 02-24-2011 |
20110046270 | Concrete or Mortar Admixture Composition - A concrete admixture composition concurrently using (A) a polycarboxylic acid type water-reducing agent for concrete, (B) a hydroxycarboxylic acid type water-reducing agent for concrete, and (C) a polysaccharide type thickening agent is offered, with the view to manufacture a high-performance and multi-functional concrete excelling in high fluidity, freshness retention, early strength, pumpability, material segregation resistance and anti-washout properties under water. | 02-24-2011 |
20110054082 | Vinyl Ester Maleic Acid Derivative Copolymers - The invention relates to a process for the preparation of a copolymer by free radical mass polymerization of a maleic acid monoester derivative with vinyl ester in the presence of an acid having a pKa of less than 1.8. The copolymer is suitable as a dispersant for hydraulic binders. | 03-03-2011 |
20110054083 | Copolymer Comprising Polyether Side Chains and Hydroxyalkyl and Acid Structural Units - The invention relates to a copolymer which is suitable as a superplasticizer for hydraulic binders and comprises 5 to 55 mol % of an isoprenol polyether derivative structural unit, 2 to 90 mol % of an acrylic acid derivative structural unit and 2 to 90 mol % of a hydroxyalkyl acrylate structural unit. | 03-03-2011 |
20110054084 | Hydraulic cements comprising carbonate compound compositions - Hydraulic cement compositions that include a carbonate compound composition, e.g., a salt-water derived carbonate compound composition containing crystalline and/or amorphous carbonate compounds, are provided. Also provided are methods of making and using the hydraulic cements, as well as settable compositions, such as concretes and mortars, prepared therefrom. The cements and compositions produced therefrom find use in a variety of applications, including use in a variety of building materials and building applications. | 03-03-2011 |
20110065839 | Low Dust Joint Compound and Method of Making the Same - A joint compound or wall repair composition and the method of making the same is disclosed that reduces the amount of airborne dust emitted during traditional sanding processes. Generally, such a reduction can be achieved by combining a first binder that has a high glass transition temperature and a second binder that has a low glass transition temperature with conventional joint compound compositions. | 03-17-2011 |
20110065840 | PROCESS FOR PREPARING POLYOL DISPERSIONS - The present invention relates to a dispersion comprising
| 03-17-2011 |
20110105648 | PROCESS OF COPOLYMERIZATION IN EMULSION OF 1-ALKENES AND VINYL ESTERS WITH HIGH CONVERSION AND THEIR USE - New process conditions are described and more particularly emulsion polymerization of compositions which are based on copolymers of vinyl acetate, straight chain α-olefin and an optional third different olefinically-unsaturated co-monomer in which the α-olefin is emulsified prior to the addition into the polymerization mixture. | 05-05-2011 |
20110136943 | Cement Compositions Including Polymer Particles - Disclosed is a cement composition comprising polymeric particles with inorganic fillers for application in oil well cementing. The fillers improve bonding between the polymeric particles and the cement matrix leading to improved mechanical parameters of the cement system. The filled particles may also lead to improved mixability and slurries that are easier to optimise. | 06-09-2011 |
20110136944 | COPOLYMERS BASED ON UNSATURATED MONO- OR DICARBOXYLIC ACID DERIVATIVES AND OXYALKYLENEGLYCOL-ALKENYL ETHERS, PROCESSES FOR THE PRODUCTION AND USE THEREOF - The invention relates to copolymers based on unsaturated mono or dicarboxylic acid derivatives, oxyalkyleneglycol-alkenyl ethers, vinyl polyalkyleneglycol or ester compounds, in addition to the use thereof as additives for aqueous suspensions based on mineral or bituminous binding agents. Said invention is characterized in that the inventive copolymers, having a long lateral chain, impart small amounts of excellent processing properties to aqueous binding suspension, and simultaneously cause the water content in the concrete to be greatly reduced. | 06-09-2011 |
20110136945 | INCORPORATION OF A RESIN DISPERSION TO IMPROVE THE MOISTURE RESISTANCE OF GYPSUM PRODUCTS - This invention relates to a composition suitable for use in making moisture resistant gypsum products. In particular, this invention relates to resin dispersions and their use in combination with gypsum to form moisture resistant gypsum compositions which are settable by hydration. Further, the invention relates to moisture resistant products formed from such settable gypsum compositions, e.g. panels and boards, and a method for the manufacture of such moisture resistant gypsum products. | 06-09-2011 |
20110136946 | SLURRY COMPOSITIONS FOR GROUND IMPROVEMENT USING BLAST-FURNACE SLAG CEMENT AND METHOD OF PRODUCING SOIL CEMENT SLURRY BY USING SAME - Slurry composition for ground improvement is obtained from cement, water and an admixture. The slurry composition cement is of a kind prepared by using blast-furnace slag cement of a specified type as the cement at a water/blast-furnace slag cement mass ratio of 40-250% and contains the admixture in an amount of 0.1-5 mass parts for 100 mass parts of the blast-furnace slag cement. The blast-furnace slag cement of the specified type contains blast-furnace slag fine particles with fineness 3000-13000 cm | 06-09-2011 |
20110160350 | REDISPERSIBLE POLYMER POWDERS STABILIZED WITH PROTECTIVE COLLOID COMPOSITIONS - A water redispersible polymer powder is produced by drying an aqueous mixture of a water insoluble film-forming polymer and a colloidal stabilizer which includes a chelating agent and at least one water soluble polymer. The amount of chelating agent is at least 0.1% by weight, based upon the weight of the water insoluble film-forming polymer, and the amount of the at least one water soluble polymer is at least 0.1% by weight, based upon the weight of the water insoluble film-forming polymer. Dispersions or polymer compositions containing a chelating agent and water soluble polymer as a colloidal stabilizer exhibit an unexpectedly low viscosity which facilitates spray drying and permits use of high solids content dispersions with low pressure spray drying to increase production efficiency. The colloidal stabilizer composition provides unexpectedly superior redispersibility for water insoluble film-forming polymers having very low carboxylation levels. | 06-30-2011 |
20110160351 | DISPERSING AGENTS FOR GYPSUM PLASTER COMPOSITIONS - A polymer P as a dispersant for gypsum compositions, as well as gypsum compositions including the polymer P. The polymer P includes at least one acid unit and at least one long side chain with a molecular weight of at least 1800 g/mol, including polyoxyalkylene groups, and has an acid content of 1.5 to 4 acid groups per gram of polymer. | 06-30-2011 |
20110166261 | Dynamic Copolymers For Workability Retention of Cementitious Composition - A process for the production of high early strength cementitious compositions includes mixing hydraulic cement, aggregate, water, and a slump retention admixture, wherein the slump retention admixture is a dynamic copolymer containing residues of at least the following monomers: A) a ethylenically unsaturated dicarboxylic acid, B) an ethylenically unsaturated alkenyl ether having an C | 07-07-2011 |
20110178208 | DISPERSANT FOR HYDRAULICALLY SETTING SYSTEMS - Polymers P as dispersants, in particular as liquefiers, for hydraulically setting systems, and hydraulically setting systems including the polymer P. The polymer P includes at least one acid unit, at least one ester unit, and at least one unit containing terephthalate or naphthalate. | 07-21-2011 |
20110178209 | MANUFACTURING HYDRAULIC CEMENT AGGREGATES FOR USE IN INSULATING AND HEAT REFLECTING PRODUCTS - Insulation and heat resistance hydraulic cement aggregates comprising of white Portland cement, with or without additives and filler, magnesium oxide, zirconium compounds, marble, dolomite, granite, sand, talc, clays calcined, boron compounds, silicates, trap rock aggregate, polymeric binder/s optionally water. | 07-21-2011 |
20110190422 | Continuously Operated Method for Producing Copolymers - The invention relates to a process for the preparation of copolymer in a continuous mode of operation in a polymerization apparatus, comprising a polymerization reactor having feed lines and an outflow, free radical polymerization initiator, an acid monomer and polyether macromonomer being passed as monomeric starting materials into the polymerization reactor through the feed lines, initiator, monomeric starting materials and copolymer-containing reaction composition thermostated at −20 to +120° C. being present in the polymerization reactor, copolymer-containing reaction composition being discharged from the polymerization reactor through the outflow, the introduction of the polyether macromonomer into the polymerization reactor being effected separately from the acid monomer in a manner such that the polyether macromonomer is mixed with the initiator, monomeric starting materials and copolymer-containing reaction composition in the polymerization reactor and comes into contact with the acid monomer for the first time thereby. | 08-04-2011 |
20110207855 | AQUEOUS SOLUTION OF (METH)ACRYLIC FLUID COMB-BRANCHED POLYMERS WITH A SOLID CONTENT GREATER THAN 60%, MANUFACTURING METHOD AND USE AS A PLASTICIZING AGENT - The present invention pertains to an aqueous solution of comb-branched polymers, having a (meth)acrylic skeleton functionalized by side-chains with hydrophilic alcoxy- or hydroxy-polyalkylene glycol functions, said solution remaining stable and workable at dry solids content levels greater than 60% of its weight. The invention also pertains to a method for manufacturing such solutions, as well as their use as a plasticizing agent, and hydraulic binder-based compositions containing them. | 08-25-2011 |
20110207856 | USE AS AN AGENT IMPROVING THE WORKABILITY OF AN AQUEOUS FORMULATION WITH A HYDRAULIC BINDER BASE, OF A (METH)ACRYLIC COMB-BRANCHED COPOLYMER AND AN ASSOCIATIVE ACRYLIC THICKENER - The present invention pertains to the use, in the manufacture of an aqueous formulation with a hydraulic binder base, of a combination of at least one comb-branched copolymer having a (meth)acrylic skeleton, onto which are grafted side-chains terminated by a hydrophilic group, and at least one ASE acrylic polymer. This results in improving the workability of said formulation, without causing a segregation phenomenon. | 08-25-2011 |
20110213054 | METHOD FOR STABILIZING POLYCARBOXYLATES - This disclosure relates to stabilizing polycarboxylates, such polycarboxylate ethers, in a presence of an inorganic powder at an elevated temperatures by using at least one antioxidant. | 09-01-2011 |
20110230598 | Pervious Concrete Composition - The invention relates to pervious concrete compositions containing hydraulic binder, filler and polymer, characterized in that the polymer present is a vinyl acetate-ethylene-copolymer having a glass transition temperature Tg of ≦20° C. | 09-22-2011 |
20110245379 | POLYMER COMPRISING AMIDE AND ESTER GROUPS, METHOD FOR PRODUCTION AND USE THEREOF - A polymer (P) is disclosed which includes amide and ester groups. The polymer can be produced by a process whereby, in a first step, a homo- or co-polymer (P1) of (meth)acrylic acid is reacted with a monohydroxy compound (E) at a temperature of up to 200° C., such that, in addition to ester groups, anhydride groups are formed. In a second step, the anhydride groups formed in the first step are reacted with a monoamine compound (A) at temperatures significantly below 100° C. Polymers produced by the above method can be included in hydraulic-setting compositions before and after hardening by an addition of water. | 10-06-2011 |
20110257301 | Mixtures and Emulsions for Use in Providing Strength to Gypsum Compositions - Settable gypsum compositions are described herein which include a gypsum slurry, comprising water; and a first additive comprising a vinyl acetate/ethylene copolymer in latex or emulsion form and a second additive which is at least one of (i) a wetting agent and/or a surfactant; (ii) a titanium coupling agent, (iii) a zirconium coupling agent, and (iv) mixtures thereof. The compositions demonstrate improved strength and gypsum core adhesion. Such compositions may also include at least one dispersant and/or a wetting agent and/or a surfactant. Such dispersants may be lignosulfonic acid, naphthalene sulfonic acid, and combinations and salts thereof and the wetting agent and/or surfactant may be N-dodecyl 2-pyrrolidone, ethoxylated alcohol, and combinations thereof. The dispersant and/or wetting agents and/or surfactants can further enhance rheological properties to benefit the enhanced strength gypsum compositions. | 10-20-2011 |
20110257302 | BINDER COMPOSITIONS COMPRISING BORIC ACID OR BORIC ACID SALT - The present invention relates to binder compositions which are based on polymer dispersions and comprise boric acid or salts of boric acid as crosslinking agents, to processes for preparing them, and to their uses. | 10-20-2011 |
20110257303 | Hydraulically Setting Sealing Composition - The invention provides hydraulically setting sealing composition based on a) a hydraulically setting compound out of the group comprising high-alumina cement, ordinary portland cement, blast furnace slag, b) protective-colloide stabilized polymer of one or more ethylenically unsaturated monomers in form of an aqueous polymer dispersion or a water-redispersible polymer powder, and c) one or more fillers. | 10-20-2011 |
20110257304 | Acid-resistant, hydraulically setting masses - The invention relates to acid-resistant, hydraulically setting masses based on a) slag sand, b) one or more pozzolanas, c) one or more fillers, d) one or more polymers based on ethylenically unsaturated monomers, and water. | 10-20-2011 |
20110281976 | REDISPERSIBLE POWDER COMPOSITION FOR DRY MORTAR FORMULATIONS - The present invention relates to a redispersible powder composition for use in the preparation of dry mortar formulations, especially of cementitious bound tile adhesives (CBTA). The invention further relates to a dry mortar formulation comprising said redispersible powder composition. Furthermore, the invention is directed to a method of increasing the open time of a dry mortar formulation without deteriorating the mechanical strength of the cured dry mortar formulation. | 11-17-2011 |
20110306705 | REDISPERSIBLE POLYMER POWDER COMPOSITIONS PREPARED FROM STYRENE BUTADIENE-BASED LATEX FOR DRY MIX FORMULATIONS - Redispersible polymer powder compositions which include a polyglycol in admixture with a redispersible polymer powder (RDP), which powder includes a codried mixture of a carboxylated, water insoluble film-forming styrene butadiene polymer and a colloidal stabilizer, results in cement compositions having unexpectedly superior overall bonding strength and adhesion after water immersion. Use of the polyglycol provides good workability or ease of troweling during application. In addition, the RDP composition, which includes the RDP and the polyglycol, provides the cement-based composition with excellent abrasion resistance, surface appearance, and color. Also, the RDP composition provides for at least a 30% reduction, for example a 50% or more reduction in the amount of retarder or retardant employed in the dry mix formulation for cement compositions, such as self leveling flooring compounds or compositions, and cement-based tile adhesives. | 12-15-2011 |
20110319526 | USE IN A HYDRAULIC BINDER COMPOSITION OF A DRY-GROUND CALCIUM CARBONATE WITH A COPOLYMER OF (METH) ACRYLIC ACID AND AN ALKOXY OR HYDROXY POLYALKYLENEGLYCOL GROUP - A dry-ground calcium carbonate obtained by dry-grinding calcium carbonate in the presence of a grinding aid agent which is a copolymer of (meth)acrylic acid with a monomer containing an alkoxy or hydroxy polyalkyleneglycol group, and compositions of the dry-ground calcium carbonate with a hydraulic binder base. | 12-29-2011 |
20120004350 | Semi Continuously Operated Method for Producing Copolymers - The invention relates to a process for the preparation of a copolymer in semicontinuous operation in a polymerization apparatus, comprising a polymerization reactor connected to a metering device, in each case acid monomer being initially taken in the metering device and polyether macromonomer, acid monomer and water in the polymerization reactor, acid monomer being metered from the metering device into the polymerization reactor, free radical polymerization initiator being passed into the polymerization reactor before and/or during the metering of the acid monomer into the polymerization reactor so that an aqueous medium in which acid monomer and polyether macromonomer are reacted with formation of the copolymer by free radical polymerization forms in the polymerization reactor, the molar ratio of acid monomer used altogether to polyether macromonomer used altogether being 20:1 to 1:1, the molar ratio of acid monomer initially taken in the polymerization reactor to the acid monomer metered into the polymerization reactor being 10:1 to 1:10 and the metering of the acid monomer being effected with the proviso that at least 70 mol % of the acid monomer metered in altogether are metered in the course of 5 to 19 minutes at a metering rate that is constant or varies to a limited extent. | 01-05-2012 |
20120010331 | CONCRETE COMPOSITIONS USING BLAST-FURNACE SLAG COMPOSITIONS - Concrete compositions including a binder, water, a fine aggregate, a coarse aggregate and an admixture are provided. The binder is formed with a blast-furnace slag composition including 100 mass parts of a mixture of 80-95 mass % of blast-furnace slag fine particles with fineness 3000-13000 cm | 01-12-2012 |
20120029119 | REDISPERSIBLE POLYMER POWDERS PREPARED FROM BLENDS OF CARBOXYLATE - A water redispersible polymer powder is produced by drying an aqueous mixture of a high T | 02-02-2012 |
20120035300 | Semi-Continuous Method For Producing Copolymers - The present invention relates to a process for the preparation of a copolymer in semicontinuous operation in a polymerization apparatus, comprising a polymerization reactor connected to a metering device, in each case acid monomer being initially taken in the metering device and polyether macromonomer and water in the polymerization reactor, acid monomer being metered from the metering device via an acid monomer metering line into the polymerization reactor, free radical polymerization initiator being passed into the polymerization reactor before and/or during the metering of the acid monomer into the polymerization reactor so that an aqueous medium in which acid monomer and polyether macromonomer are reacted with formation of the copolymer by free radical polymerization forms in the polymerization reactor, a portion of the copolymer-containing aqueous medium being passed continuously during the free radical polymerization from the polymerization reactor via a reaction mixture line which is connected via a mixing device to the acid monomer metering line, the discharged copolymer-containing aqueous medium being mixed with the acid monomer in the mixing device during the metering of the acid monomer and being recycled to the polymerization reactor after the mixing via the acid monomer metering line. | 02-09-2012 |
20120035301 | Method For The Production Of Copolymers - The invention relates to a process for the preparation of a copolymer in semicontinuous operation in a polymerization apparatus, comprising a polymerization reactor connected to a metering device, in each case acid monomer being initially taken in the metering device and polyether macromonomer and water in the polymerization reactor, acid monomer being metered from the metering device into the polymerization reactor, free radical polymerization initiator being passed into the polymerization reactor before and/or during the metering of the acid monomer into the polymerization reactor so that an aqueous medium in which acid monomer and polyether macromonomer are reacted with formation of the copolymer by free radical polymerization forms in the polymerization reactor, the free radical polymerization initiator used being an H | 02-09-2012 |
20120041106 | Dispersing Agent Containing Copolymer Mixture - The invention relates to a polymer composition containing 5 to 95% by weight of a copolymer H and 2 to 60% by weight of a copolymer K, the copolymers H and K each having polyether macromonomer structural units and acid monomer structural units, which are present in the copolymers H and K in each case in a molar ratio of 1:20 to 1:1, and at least 20 mol % of all structural units of the copolymer H and at least 25 mol % of all structural units of the copolymer K being present in each case in the form of acid monomer structural units, the polyether macromonomer structural units of the copolymer H having side chains containing in each case at least 5 ether oxygen atoms, the number of ether oxygen atoms per side chain of the polyether macromonomer structural units of the copolymer H varying in such a way that the corresponding frequency distribution diagram, in which the number of ether oxygen atoms per side chain of a polyether macromonomer structural unit is plotted along the abscissa and the associated frequency for the copolymer H is plotted along the ordinate, contains at least 2 maxima. | 02-16-2012 |
20120046392 | Dynamic Copolymers For Workability Retention of Cementitious Composition - A process for the production of high early strength cementitious compositions includes mixing hydraulic cement, aggregate, water, and a slump retention admixture, wherein the slump retention admixture is a dynamic copolymer containing residues of at least the following monomers: A) a ethylenically unsaturated dicarboxylic acid, B) an ethylenically unsaturated alkenyl ether having an C | 02-23-2012 |
20120046393 | Nano-hybrid Concrete Chemical Admixture for Chloride Invasion Resistance Consisting of Layered Double Hydroxide/Polyurethane Copolymer - The present invention relates to a chloride penetration resistant nano-hybrid concrete chemical admixture comprising layered double hydroxide and polyurethane copolymer. More specifically, nano-hybrid concrete chemical admixture obtained by combining the two compounds at a nano-scale, the layered double hydroxide which exhibits resistance to chloride penetration, and polyurethane copolymer which entails an excellent water reducing ability, durability and workability. In addition, the inorganic/organic hybrid material described herein exhibits high water reducing ability, improved resistance to chloride penetration, and thus can be used as chloride penetration resistant concrete chemical admixture for marine concretes. | 02-23-2012 |
20120059091 | Continuously Operated Method for Producing Copolymers - The invention relates to a process for the preparation of copolymer in a continuous mode of operation in a polymerization apparatus, comprising a polymerization reactor having feed lines and an outflow, free radical polymerization initiator, an acid monomer and polyether macromonomer being passed as monomeric starting materials into the polymerization reactor through the feed lines, initiator, monomeric starting materials and copolymer-containing reaction composition thermostated at −20 to +120° C. being present in the polymerization reactor, copolymer-containing reaction composition being discharged from the polymerization reactor through the outflow, the introduction of the polyether macromonomer into the polymerization reactor being effected separately from the acid monomer in a manner such that the polyether macromonomer is mixed with the initiator, monomeric starting materials and copolymer-containing reaction composition in the polymerization reactor and comes into contact with the acid monomer for the first time thereby. | 03-08-2012 |
20120065301 | AQUEOUS POLYMER DISPERSIONS - Aqueous polymer dispersions, which, in addition to water and a dispersed copolymer composed of at least two monomers selected from the group consisting of ethylene, propylene, butylene, isoprene, butadiene, styrene, acrylonitrile, acrylic acid, methacrylic acid, acrylic acid alkyl ester, methacrylic acid alkyl ester, vinyl ester, and vinyl chloride, also comprises a comb polymer having side chains that are bound to the main chain by ester or ether groups. The aqueous polymer dispersions are particularly suited for use together with hydraulic and latently hydraulic binding agents. The aqueous polymer dispersions are extremely efficient and result in a strong increase in the mechanical values and a relevant decrease in the porosity and the water absorption property. | 03-15-2012 |
20120071588 | Fiber-Containing Pasty Construction Materials - The invention relates to fiber-containing pasty construction materials, containing a) one or more fillers, b) optionally additives, characterized in that they contain c) fibers, d) one or more polymers based on one or more ethylenically unsaturated monomers, having a glass transition temperature Tg of ≧−15° C., e) ≦5% by weight hydraulically setting binders and f) water, wherein the information in % by weight relates to the dry weight of the fiber-containing pasty construction materials. | 03-22-2012 |
20120077907 | STYRENE-BUTADIENE BASED REDISPERSIBLE POLYMER POWDERS WITH IMPROVED STABILITY IN CEMENT APPLICATIONS - A water redispersible polymer powder is produced by drying an aqueous mixture of a carboxylated styrene butadiene polymer and a colloidal stabilizer which includes a polyvinyl alcohol modified with an alkyl end chain. The alkyl modified polyvinyl alcohol provides excellent redispersibility of the redispersible polymer powder without adversely affecting spray drying. Cement compositions such as mortars, which contain the redispersible polymer powder with the alkyl modified polyvinyl alcohol exhibit unexpectedly superior stability and an unexpectedly lower rate of mortar viscosity buildup which is advantageous for workability or troweling. | 03-29-2012 |
20120095134 | VISCOSITY-REDUCING SUPER-PLASTICISING COPOLYMERS - The invention mainly relates to the use of a (co)polymer having a main chain essentially consisting of (meth)acrylic units and polyoxyalkylated side-chains containing statistically-distributed hydrophobic units as an adjuvant for lowering the viscosity of hydraulic compositions. | 04-19-2012 |
20120108704 | Sulfur Modified Asphalt for Warm Mix Applications - Disclosed herein are an asphalt concrete mixture, an asphalt binder composition, and methods of preparing the related compositions. The asphalt binder compositions include a polyphosphoric acid, a macromolecular polymer having a saturated backbone with macromolecular modifications, sulfur, and non-surfactant additives based on wax chemistry. The compositions are capable of being performance graded and being used in warm mix asphalt applications. | 05-03-2012 |
20120129981 | FLUIDIZING MIX FOR A COMPOSITION WITH A BASE OF HYDRAULIC BINDER - A hydraulic composition includes at least one hydraulic binder; at least one first water-reducing additive including at least one phosphonic amino-alkylene group; at least one second water-reducing additive including at least one polymer with a comb structure, the concentration by weight of dry extract of the second additive being from 25% to 100% of the concentration by weight of dry extract of the first additive. | 05-24-2012 |
20120136095 | USE OF GRAFTED SMA COPOLYMERS IN LIQUID COMPOSITIONS - The subject of the invention is the use of a grafted copolymer derived from the grafting: of an SMA copolymer (II) derived from the copolymerization of at least two monomers, (i) the first monomer being chosen from styrene and its derivatives and (ii) the second monomer including at least one anhydride function, with (iii) M-R-X molecules (I) including at least one pattern (M) chosen from patterns (1) to (4): formula (I), with A=oxygen, sulfur or NH; and including at least one chemical function (X) chosen from among halogen, a primary or secondary amine function, an alcohol function, a thiol function, a carboxylic acid function or a derivative of said function and an epoxy function, the pattern (M) and said function (X) being connected by a rigid or flexible chain (R); used as the majority composition or additive of liquid compositions intended to be applied in or on sheets of paper or cardboard, onto hard surfaces, on leather or on textiles. | 05-31-2012 |
20120136096 | PROTECTION OF A DISPERSING AGENT DURING A GRINDING OPERATION - A method includes using a composition in the production of cement, the composition including at least one dispersing agent and at least one sacrificial molecule to partially or totally retain the properties of the dispersing agent; being either in the form of a liquid solution, or an emulsion or a suspension; the quantity of the sacrificial molecule in the composition representing at least 5% by mass of the mass of dispersing agent; and being introduced before or during the grinding of the clinker. | 05-31-2012 |
20120157576 | Polyoxymethylene Fibers in Concrete - Disclosed are polymeric additives for concrete formed of a polyoxymethylene (POM) copolymer. POM copolymers can be utilized to form fibrous additives for concrete, i.e., microfibers and/or macrofibers. The POM copolymers can include one or more chemical groups, e.g., end groups and/or pendant groups that can increase the polarity of the POM and increase the hydrophilicity of the formed fibers, which can improve miscibility of the fibers in wet concrete. Chemical groups of the POM copolymers can bond with components of the concrete or can hydrolyze to form groups that can bond with components of the concrete, e.g., form covalent or noncovalent (e.g., electrostatic or ionic) bonds with one or more components of the concrete binder. | 06-21-2012 |
20120157577 | MULTISTAGE POLYMER DISPERSIONS, PROCESSES FOR PREPARING THEM, AND USE THEREOF - The present invention relates to aqueous multistage polymer dispersions obtainable by free-radically initiated aqueous emulsion polymerization, having a soft phase and a hard phase, and a hard-to-soft stage ratio of 25% to 95% by weight to 75% to 5% by weight, the glass transition temperature (Tg) of the soft phase, as first stage, being −30 to 0° C. and that of the hard phase, as second stage, being 20 to 60° C., comprising at least one monomer of the general formula I | 06-21-2012 |
20120157578 | Cement Compositions and Associated Methods Comprising Sub-Micron Calcium Carbonate and Latex - Methods and compositions are provided that relate to cement compositions comprising sub-micron calcium carbonate and latex. An embodiment includes a cement composition comprising: cement, water, sub-micron calcium carbonate having a particle size in a range of from greater than 100 nanometers to about 1 micron, and latex. | 06-21-2012 |
20120232191 | METHOD FOR PRODUCING SHRINK FILMS - The present invention relates to a process for producing shrink films comprising:
| 09-13-2012 |
20120238672 | COMPOSITIONS AND METHODS FOR PROVIDING COATINGS; MATERIALS; APPLICATION TECHNIQUES; AND, RESULTING COATED SUBSTRATES - Techniques and compositions for applying films to a variety of substrates, from water-borne coating compositions, are provided. The techniques involve providing desiccant and applying the desiccant with water-borne film-forming composition, in application to a substrate. The desiccant composition provides for take up of free water in of the film-forming composition, without total reliance on ambient conditions, to advantage. Compositions, methods, techniques and resulting constructions are described. The techniques can be applied in wet thick film applications, but are not limited to such applications. | 09-20-2012 |
20120264851 | ARGILLACEOUS GYPSUM - Additives selected from primary, secondary, and tertiary alkyl amines and quaternary alkyl ammonium compounds are added to argillaceous gypsum compositions comprising comb polymers to improve the workability thereof. Argillaceous gypsum compositions, dispersing agents, a method for producing argillaceous gypsum compositions, and molded parts that can be produced from the gypsum compositions are also described. | 10-18-2012 |
20120270969 | Accelerator Composition - Compositions containing calcium silicate hydrate and at least one (co)polymer having carboxylic acid groups and/or carboxylate groups and sulphonic acid groups and/or sulphonate groups, wherein the molar ratio of the number of carboxylic acid groups and/or carboxylate groups to the sulphonic acid groups and/or sulphonate groups is from 1/20 to 20/1. Processes for producing the aqueous and also solid compositions, their use as curing accelerators in building material mixtures containing cement, slag sand, fly ash, silica dust, metakaolin, natural pozzuolanas, calcined oil shales and/or calcium aluminate cement and their use as grinding aid in the production of cement. | 10-25-2012 |
20120270970 | Accelerator Composition - A process for producing solid compositions containing calcium silicate hydrate (C—S—H) and a water-soluble comb polymer which is suitable as plasticizer for hydraulic binders, wherein the following process steps are carried out: a) contacting of an aqueous C—S—H-containing suspension with at least one comb polymer, b) optionally setting a suitable solids content of the product from step a) by dilution with water and c) drying of the product from step a) or b). The process products which can be obtained, the use thereof in building material mixtures, in particular, containing cement, the use as grinding aid in the production of cement and corresponding building material mixtures are likewise provided. | 10-25-2012 |
20120270971 | EXTRUDED FIBER REINFORCED CEMENTITIOUS PRODUCTS HAVING STONE-LIKE PROPERTIES AND METHODS OF MAKING THE SAME - A cementitious composite product that can function as a substitute for stone and solid surface materials, such as granite, marble, and engineered stone is provided. Furthermore methods for manufacturing the cementitious composite product using an extrudable cementitious composition that can be extruded or otherwise shaped into stone-like building products that can be used as a substitute for many known stone products is disclosed. In one embodiment, the cementitious composite products can be manufactured more cheaply to be as tough or tougher and more durable than stone and solid surface materials. | 10-25-2012 |
20120270972 | CEMENT GRINDING AID - An aqueous polymer composition is disclosed which is used in the form of a cement grinding aid and makes it possible to effectively reduce the grinding time and to obtain cements exhibiting excellent characteristics. A cement grinding aid containing a combination of polymer A and known grinding aids is also disclosed. | 10-25-2012 |
20120283361 | BULK MATERIAL COVER COMPOSITIONS AND METHODS OF APPLYING - A cover material for a bulk material pile and method for applying the cover material are disclosed. The cover composition comprises liquid, cement and/or fly ash, fiber, water dispersible polymer and acid. | 11-08-2012 |
20120289627 | ADMIXTURE COMPOSITION FOR A TILE CEMENT MORTAR AND A TILE CEMENT MORTAR COMPOSITION COMPRISING THE SAME - Disclosed are an admixture composition for a tile cement mortar and a tile cement mortar composition comprising the admixture composition. The disclosed admixture composition for a tile cement mortar comprises a cellulose ether, a polyacrylamide-based polymer coagulant and an inorganic coagulant. | 11-15-2012 |
20120322921 | High Strength Concrete Made with PVA Reinforcement Fibers and Its Associated Method of Manufacture - An improved concrete mix composition and its associated method of manufacture. A traditional concrete mix is created by mixing cementitious material with sand, aggregate, admixture chemicals and water. After the traditional mix has been thoroughly mixed, reinforcement fibers of polyvinyl alcohol are added to the mix. The reinforcement fibers chemically bond to the cementitious material, thereby chemically integrating the reinforcement fibers into the mixture. The reinforcement fibers are supplied in multiple sizes. The reinforcement fibers include both long thick fibers and short thin fibers. In this manner, the smaller reinforcement fibers can fill voids around the larger, thicker reinforcement fibers. This helps prevent the development of stress cracks in the concrete and significantly increases the strength, durability, and life expectancy of the concrete. | 12-20-2012 |
20130005862 | DISPERSANT - A dispersant composition for construction compositions. | 01-03-2013 |
20130005863 | DISPERSING AGENT - A preferably pulverulent dispersing agent comprising as the component having a dispersing action the combination of (a) at least one representative of polycarboxylate ethers with a weight content of from 0.1 to 20%, (b) at least one representative of polycarboxylate esters with a weight content of from 0 to 20% and (c) at least one representative of non-charged copolymers with a weight content of from 0.1 to 20%, which is accessible by co-spray drying the individual components and which is suitable for controlling the flowability of aqueous chemical construction suspensions is claimed. By the dispersing agents which form in situ according to the invention, a controllable subsequent dosing of dispersing agent can be achieved without an additional process step. Furthermore, by subsequent dosing with a flow agent, an increased dosing efficiency of a polymer can be achieved, the extent of the dispersing can be controlled in several stages and the duration of the processability of a fresh mortar can be prolonged especially at elevated temperatures by an increasing saponification. | 01-03-2013 |
20130005864 | HYDROPHOBIC CEMENTITIOUS COMPOSITION - The invention relates to a cementitious composition that can effectively reduce the adsorption of water, which comprises a) at least one polymer that is the polymerization product of one or more ethylenically unsaturated monomers, in the form of their polymer dispersions and water-redispersible polymer powders; and b) at least one alkyl and/or alkenyl substituted dicarboxylic acids or anhydrides. | 01-03-2013 |
20130023606 | METHOD OF PRODUCING SOIL CEMENT SLURRY - Soil cement slurry is produced by mixing blast-furnace slag fine particles with a specified fineness and Portland cement at a specified ratio to prepare blast-furnace slag cement and using a specified amount of slurry composition for ground improvement including this blast-furnace slag cement with water and an admixture per 1 m | 01-24-2013 |
20130023607 | POLYMER ADDITIVE TO STRENGTHEN GUNNING COATINGS CONCRETE - This invention provides an additive for Portland Cement comprising a mixture of polyols, acrylic monomers and copolymers, wetting agent, polypropylene glycol and silicone. | 01-24-2013 |
20130030086 | REDISPERSIBLE POLYMER POWDER FROM POLYOLEFIN DISPERSIONS AND THE USE THEREOF IN CONSTRUCTION APPLICATIONS - The present invention provides compositions comprising redispersible polymer powders of polyolefins with carboxyl group containing dispersant polymers and vinyl ester copolymers which may further comprise hydraulic or water curable inorganic cements for various construction applications, such as cement tile adhesives. Methods of making redispersible polymer powders of polyolefins are also provided, including forming an aqueous polyolefin dispersion, such as, for example, by mechanical dispersion, followed by drying to form the redispersible polymer powders. | 01-31-2013 |
20130030087 | ADDITIVE FOR HYDRAULICALLY SETTING SYSTEMS WITH IMPROVED PROCESSING - A comb polymer and use thereof for improving the processing of hydraulically setting compositions. The comb polymer has ester, amide and/or ether groups on side chains bound to a main chain and the main chain has at least one acrylic acid unit A or a salt thereof and at least one methacrylic acid unit M or a salt thereof. Processes for producing a hydraulically setting composition with longer processing time. | 01-31-2013 |
20130035423 | RAPID HYDRAULIC BINDER FOR CONCRETE PARTS AND STRUCTURES - A rapid hydraulic binder includes cement; a setting and hardening accelerator including hydrated calcium silicate seeds, a first superplasticizer and a second superplasticizer different from the first superplasticizer and having a maximum fluidizing action at 20° C. after the maximum fluidizing action at 20° C. of the first superplasticizer. | 02-07-2013 |
20130041073 | PLASTICIZING MIXTURE FOR A HYDRAULIC COMPOSITION - A mixture for a hydraulic composition, including an inerting agent for at least partially neutralizing the harmful effects of impurities in a hydraulic composition on the workability of the hydraulic composition; a first superplasticizer different from the inerting agent; and a second superplasticizer different from the first superplasticizer and the inerting agent and having a maximum plasticizing action at 20° C. developing after the peak of the plasticizing action at 20° C. of the first superplasticizer. | 02-14-2013 |
20130046045 | SIZING COMPOSITION FOR FIBERS, SIZED FIBERS AND METHOD OF SIZING FIBERS - Disclosed are aqueous size compositions for inorganic fibers which is based on a specific polymeric film former composition comprising
| 02-21-2013 |
20130053475 | Additive Composition for Mortars, Cements and Joint Compounds and Cementitious Compositions Made Therefrom - An additive composition for mortars, exterior insulation finish systems, self-leveling compounds and joint compounds is disclosed. The additive composition contains a nitrogen-containing polymer and a reactive agent capable of forming a crosslinking reaction with the nitrogen-containing polymer. Small amounts of the additive composition contained in a product not only can increase one or more properties of the product but can also minimize the use of redispersible polymers in the product. | 02-28-2013 |
20130059948 | MOISTURE-CURABLE SEALING COMPOSITION AND SEALING COMPOSITION SHEET - A moisture-curable sealing composition contains a carboxyl group-containing polymer having a carboxyl group, a plasticizer, and a metal oxide-containing component containing a metal oxide and/or a metal carbonate. | 03-07-2013 |
20130065988 | SUPERPLASTICIZERS FOR CONCRETE AND CEMENT MATERIALS AND PROCESS FOR PRODUCING THE SAME - Superplasticizer for concrete and other cement mixtures, which is intrinsically low-foaming, promotes the early mechanical strength development and retains the workability of fresh concrete for longer time, obtainable by reacting acid, not neutralized, polycarboxylic polymers with monofunctional polyethers and difunctional polyethers in the absence of strong acidic catalysts. | 03-14-2013 |
20130085210 | CURABLE MIXTURE - The present invention relates to a curable mixture suitable for obtaining “easy-to-clean” properties in the cured mixture, comprising at least one mineral binder, a powder comprising at least one fluoroorganyl-substituted silicon compound encapsulated in a water-soluble polymer, the amount of the silicon compound being 0.001% to 8% by weight, based on the present mixture, and optionally further adjuvants, and also to a process for preparing the mixture and to the use thereof. The invention further relates to a water-redispersible powder and also to a corresponding intermediate for use in the curable mixture in order to obtain “easy-to-clean” properties in the cured mixture. Also claimed, furthermore, is a process for preparing the powder, and the use thereof. | 04-04-2013 |
20130123393 | INHIBITOR COMBINATION, RESIN MIXTURE CONTAINING SAME AND USE OF SAME - The use of a mixture of 5-pyrimidinol derivatives with sterically hindered phenol derivatives for adjusting the reactivity and the gel time of resin mixtures and reactive resin mortars based on radically polymerizable compounds is described. Furthermore, a resin mixture containing the inhibitor combination, a reactive resin mortar containing this resin mixture and two-component mortar systems with the reactive resin mortar according to the invention and a hardener with improved stability in storage and good low-temperature hardening properties are also described. The resin mixture according to the invention is suitable in particular for chemical fastening of construction elements in boreholes in various substrates. | 05-16-2013 |
20130131220 | EMULSION OR REDISPERSIBLE POLYMER POWDER OF A POLYMER COMPRISING A BIOMONOMER, A PROCESS TO PREPARE THEM, AND THE USE THEREOF IN BUILDING MATERIAL COMPOSITIONS - The present invention relates to process to prepare a polymer by an aqueous emulsion or suspension polymerisation process wherein a monomer mixture is polymerised in the presence of a free radical initiator and a stabiliser, to the emulsion and redispersible polymer powder obtainable therewith, and to the use of this emulsion and powder in a building material composition, in particular to hydrophobise the building material composition, wherein the monomer mixture comprises (i) 0.5-80 wt. % of biomonomers containing an ester of a polyol and at least one fatty acid, the polyol having 2 to 10 hydroxy groups, and at least one vinyl group; (ii) 20-99.5 wt. % of vinyl monomers chosen from the group of vinyl esters, (meth)acrylic esters, vinyl aromatic compounds, vinyl halides, and olefins; and (iii) 0 to 20 wt % of vinyl monomers that are different from monomer (ii) and contain at least one functional group chosen from the group of alkoxysilane, glycidyl, epoxy, epihalohydrin, nitrile, carboxyl, amine, ammonium, amide, imide, N-methylol, isocyanate, hydroxyl, thiol, keto, carbonyl, acid anhydride, aceto acetonate, sulfonic acid groups, and salts thereof, and the stabiliser comprises (a) 50 to 100 wt. % of a protective colloid; and (b) 0 to 50 wt. % of an emulsifier. | 05-23-2013 |
20130165552 | ADDITIVE FOR PERMEABLE CONCRETES WITH IMPROVED PROPERTIES AND METHOD FOR MANUFACTURING THEREOF - An additive for manufacturing permeable concretes with improved properties and method for manufacturing the same are provided. The additive comprises in a total composition: 33.70 to 54.90% water; 0.30 to 0.50% defoamer; 0.30 to 0.40% bactericide; 0.30 to 0.50% polyglycol; 7.20 to 24.00% of a combination of emulsifiers; 15.50 to 17.00% moisturizer; 0.8 to 22.90% dispersant; and 0.70 to 1.00% biopolymer. The additive for manufacturing permeable concretes can be added to any type of stony aggregate and/or cement improving the product's mechanical properties required in each step before, during, and after of the setting. | 06-27-2013 |
20130165553 | COMPACTED BODY FOR USE AS MINERAL CHARGE IN THE PRODUCTION OF MINERAL WOOL - A compacted body, in particular a briquette, suitable for use as mineral charge in the production of man-made vitreous fibres (MMVF), comprising: (i) recycled waste mineral wool which comprises MMV fibres in contact with a non-cured MMVF binder comprising: (a) a sugar component and (b) a reaction product of a polycarboxylic acid component and an amine component; and (ii) a cement binder. | 06-27-2013 |
20130203899 | PULVERULENT MORTAR COMPOSITION HAVING IMPROVED ADHESION - Pulverulent mortar composition comprising a mineral binder, an inert material in the form of aggregate capable of being agglomerated in aqueous phase by means of said binder, and 0.2 to 1% of a fluid additive comprising 25 to 100% of a linear or branched, saturated or unsaturated hydrocarbon compound (i) which is liquid at room temperature and which includes one or more —COO— ester groups, the total weight of which, relative to the molar mass of said compound, is between 20 and 50%. Use for preparing an adhesive mortar for fixing ceramic tiles. | 08-08-2013 |
20130210963 | REDISPERSIBLE DRY COMPOSITION OF POLYMER FINISHES OR OTHER PRODUCTS FOR THE CONSTRUCTION - The invention relates to improved non-efflorescing cement-free and water-dispersible powder building material compositions comprising a homopolymer or copolymer as binder, useful for the preparation of wet formulations of plasters grouts, waterproofing coatings or mortars for the construction and the civil engineering industry. Redispersible dry composition of polymer finish comprising: a powdery organic binder included a polymer obtained by spray-drying or lyophilisation of a dispersion containing said polymer and a protective colloid; a deprotection agent; a specific adsorbent filler; and/or a load; and/or a water retentive agent; and/or a mineral rheological agent; and/or a defoamer; and/or a biocide; and/or a pigment. The invention also refers to the methods of preparation of these dry compositions and wet formulations, the application of these latter onto the surface of buildings or civil engineering works, the so obtained coatings as well as the so coated elements. The applications of these wet formulations can be also hardened joints or other hardened products for the construction as well as hardened mass objects. All these hardened products are remarkably water-resistant, non efflorescent and easy to obtain. | 08-15-2013 |
20130217808 | PRODUCTION OF COMB POLYMERS BY MEANS OF ESTERIFICATION - The invention relates to a method for producing comb polymers, wherein at least one polycarboxylic acid or a salt thereof is esterified with at least one monohydroxy polyether, comprising the following steps: (a) preparing a reaction mixture containing at least one polycarboxylic acid; (b) heating the reaction mixture to at least 80° C.; (c) adding a base; and (d) esterifying the mixture at a reaction temperature of at least 80° C. obtaining a comb polymer, wherein at least one monohydroxy polyether is added to the reaction mixture in step (a) and/or (b). The invention further relates to comb polymers, cement compositions, molded bodies, and uses of comb polymers. | 08-22-2013 |
20130245162 | Copolymers for Treating Construction Aggregates - The present invention provides methods, admixture compositions for treating clay-bearing aggregates used for construction purposes, and aggregate compositions for construction purposes. The clay-bearing aggregates are treated with a cationic copolymer made from two and preferably three different monomer components. Cementitious compositions containing the treated aggregates are also described. | 09-19-2013 |
20130253097 | POLYMER MADE FROM MALEIC ACID, ALLYL ETHER, AND VINYL ACETATE AND THE PREPARATION AND USE OF SAID POLYMER - The invention relates to comb polymers made from maleic acid or derivatives thereof, allyl ethers, and vinyl acetate, and the preparation thereof by free-radical polymerization at a reaction temperature of 10° C. to 50° C. The invention relates further to the use of such comb polymers to improve the workability of hydraulically setting compositions. | 09-26-2013 |
20130281577 | Stabilized Defoamers For Cementitious Compositions - The present invention discloses additive compositions, cementitious compositions, and methods for controlling air in cementitious compositions in which colloidal nano-particles are used for stabilizing a water-dispersible defoamer within a cement-dispersant-containing aqueous additive formulation for modifying hydratable cementitious compositions such as cement or concrete. | 10-24-2013 |
20130289168 | ROOF SLOPING COMPOUND - A roof sloping compound for creating an auxiliary slope over a wide variety of roof membranes and substrates. The compound includes a dry mixture of aggregate, cement and a redispersible dry polymer adapted to be mixed with water to define a substantially self-leveling consistency enabling the compound to be readily screeded into place in a desired thickness. The aggregate comprises dolomite or limestone and the redispersible dry polymer can comprise a binder based on a copolymer of ethylene vinyl acetate. In a lightweight embodiment of the compound, the aggregate includes lightweight fillers comprising perlite and low density glass granules and a superplasticizer is added to the dry mixture to reduce water demand. | 10-31-2013 |
20130289169 | SETTING RETARDER FOR HYDRATE-FORMING BINDERS - A method for producing a setting retarder for hydrate-forming binders, wherein a) a first reactant A, comprising an amino acid and/or an amino acid derivative, is reacted with b) a second reactant C, including an amine-free carboxylic acid and/or an amine-free carboxylic acid derivative, to form a reaction product, characterized in that the reaction is carried out at a pH value of 7.5-11.5 and the pH value is held constant in the specified range of 7.5-11.5 during the reaction. In order to hold the pH value constant in the specified range and to avoid fluctuations, in one process step an aqueous solution of reactant A is prepared and a pH of 7.5-11.5, preferably 8-11, in particular 8.5-10.5, is set by adding a base. | 10-31-2013 |
20130303662 | ACCELERATED DRYING CONCRETE COMPOSITIONS AND METHODS OF MANUFACTURING THEREOF - Cementitious compositions and processes for preparing and using the cementitious compositions are provided. The cementitious compositions are characterized by the property of a reduced or an attenuated water vapor emission from a cementitious mix and a concrete formed therefrom. Certain cementitious compositions are characterized by the property of accelerated drying while still maintaining good workability. Methods of improving water retention and surface drying of concrete, including lightweight concrete are provided. A water soluble ionic salt may be used to sequester water within the pores and capillaries of the cement paste and/or porous lightweight aggregate. In some examples, the salt may be added directly to concrete or aggregates may be infused with a water-salt solution to provide treated porous aggregates having improved water saturation and water retention. | 11-14-2013 |
20130303663 | POLYMER COMPRISING A HYDROLYSABLE FUNCTION THAT CAN BE USED AS A THINNER - The invention relates to a polymer comprising the following units: | 11-14-2013 |
20130310488 | DUST REDUCER AGENT FOR DRY MIXERS OF BUILDING MATERIAL FORMULATIONS - The invention provides methods for producing building material formulations in the form of dry mixers, characterized in that (a) one or more dust reducer agents are applied to one or more inorganic supports, to form supported dust reducer agents, the inorganic supports having a porosity of ≧65%, and the dust reducer agents being selected from the group consisting of fatty acids, fatty acid derivatives, natural oils, hydrocarbons and polysiloxanes composed of units of the general formula R | 11-21-2013 |
20130338269 | FIBER FOR FIBER CEMENT AND RESULTING PRODUCT - A fiber-cement product which includes a treated cellulose wood pulp fiber. The fiber is treated with fibrillated carboxymethyl cellulose or a carboxyethyl cellulose and poly(diallyldimethylammonium chloride). The fiber can be bleached or partially bleached, refined or unrefined or a mixture of refined and unrefined fiber. | 12-19-2013 |
20130338270 | GYPSUM-CONTAINING PRODUCT - The invention provides a set gypsum-containing product having increased resistance to permanent deformation and a method for preparing it comprising forming a mixture of a calcium sulfate material, water, and an appropriate amount of one or more enhancing materials chosen from condensed phosphoric acids, each of which comprises 2 or more phosphoric acid units; and salts or ions of condensed phosphates, each of which comprises 2 or more phosphate units. The mixture is then maintained under conditions sufficient for the calcium sulfate material to form a set gypsum material. | 12-19-2013 |
20140005305 | DISPERSANT FOR A HYDRAULIC COMPOSITION | 01-02-2014 |
20140018476 | BUOYANCY CONTROL MATERIAL FOR SUBSEA MAIN PIPELINES AND HIGH-DENSITY BUOYANCY CONTROL MATERIAL FOR SUBSEA MAIN PIPELINES - The buoyancy control material for subsea main pipelines and high-density buoyancy control material for subsea main pipelines are suggested predominantly for use while manufacturing pipes for subsea pipeline installations. Creation of a buoyancy control material with a density greater than 2800 kg/m | 01-16-2014 |
20140039097 | SELF-CONSOLIDATING CONCRETE (SCC) MIXTURE HAVING A COMPRESSIVE STRENGTH OF AT LEAST 25 MPA AT 28 DAYS OF AGE - The present disclosure describes a self-consolidating concrete (SCC) mixture having a compressive strength of at least 25 MPa at 28 days of age. In accordance with one embodiment, there is provided an SCC mixture, comprising: a mixture of coarse aggregate (CA), fine aggregate (FA), very fine aggregate (VFA), Portland cement or Portland limestone cement, an ASTM C494 Type F polycarboxylate ether high range water reducer, and water, wherein the VFA has a particle size distribution in which 95% to 100% passes a 2.5 mm sieve and in which 20% to 100% passes a 75 μm sieve. | 02-06-2014 |
20140039098 | COPOLYMERS HAVING GEM-BISPHOSPHONATE GROUPINGS - The invention relates to a copolymer comprising a main hydrocarbon chain and side groups including carboxylic groups and polyoxyalkylate groups, characterized in that it further includes gem-bisphosphonate groups, an admixture for suspensions of mineral particles comprising said copolymer and to a method for preparing said copolymer. | 02-06-2014 |
20140066546 | Powdered Accelerator - The present invention relates to a solid composition containing calcium silicate hydrate and at least one water-swellable polymer which can form a hydrogel, and also to a process for preparing the composition, to the use thereof as a setting accelerator, and as a grinding aid in cement production. It also relates to building material mixtures which comprise the compositions. | 03-06-2014 |
20140066547 | ADDITIVE FOR BUILDING PRODUCT MIXTURES CONTAINING FLOW AGENTS - Claimed is a cationic copolymer and also its use as an admixture agent for building product systems, especially based on calcium sulfate. The copolymers of the invention effectuate accelerated setting behavior in clay-containing as well as non-clay-containing gypsums and they enable uncurtailed water reduction performance by dispersant agents used at the same time with the copolymers. The clay fractions in the gypsum system are masked by the cationic copolymer, and so the building product mixture exhibits properties of a building product mixture not containing clay. The copolymers are used as a formulation and also together with retarders. | 03-06-2014 |
20140080943 | COMB POLYMERS AS DISPERSANTS FOR ALKALINE ACTIVATED BINDERS - A comb polymer that is a dispersant in a binder composition includes an alkaline activating agent, wherein the activating agent is intended for activation of a latently hydraulic and/or puzzolanic binder, and wherein the comb polymer has a polymer backbone formed from a plurality of backbone monomers and a plurality of polymeric side chains each formed from a plurality of side chain monomers and bonded thereto, and wherein at least some of the backbone monomers have one or more ionizable groups, and features a structure constant K of the comb polymer, defined as K=[(N−1)z] | 03-20-2014 |
20140094542 | PROCESS FOR PRODUCING PROTECTIVE COLLOID-STABILIZED POLYMERS - The invention relates to processes for producing protective colloid-stabilized polymers based on (meth)acrylate esters in the form of their aqueous dispersions and water-redispersible polymer powders by means of free-radically initiated emulsion polymerization of one or more monomers from the group consisting of the esters of acrylic acid or methacrylic acid and optionally one or more further monomers which are copolymerizable therewith, in the presence of one or more protective colloids, and optionally drying of the resulting aqueous dispersion, characterized in that the emulsion polymerization is carried out in the presence of one or more fully hydrolysed 1-alkylvinyl ester-vinyl ester copolymers as protective colloid. | 04-03-2014 |
20140121302 | Cementitious Material for Cold Weather Applications - Disclosed is a cementitious material that possesses favorable adhesion and compressive strength properties and is suitable for cold weather applications. Disclosed also are methods for the manufacture and use of the material. | 05-01-2014 |
20140121303 | GYPSUM-CONTAINING CONSTRUCTION MATERIAL COMPOUNDS - The invention relates to gypsum-containing construction material compounds, containing gypsum, if necessary one or more polymers, if necessary one or more aggregates, and if necessary one or more additives, characterised in that the gypsum-containing construction material compounds contain one or more types of cement and one or more types of pozzolana. | 05-01-2014 |
20140128513 | CEMENT SLURRIES HAVING PYRANOSE POLYMERS - A composition includes a cement component and an amidyl pyranose component. A method of making the composition includes mixing a cement component with an amidyl pyranose component. | 05-08-2014 |
20140135428 | Polymerizate Comprising a Macromonomer - The present invention relates to a polymerizate in the form of an aqueous polymer dispersion, the polymerizate being obtainable by radical polymerization of monomers in an aqueous medium in the presence of a free radical initiator and a protective colloid, wherein the monomers comprise a) 50-99.99 wt. % of at least one vinyl monomer chosen from the group of vinyl esters, (meth)acrylic esters, vinyl aromatic compounds, vinyl halides, and olefins, and b) 0.01-30 wt. % of at least one macromonomer M, the macromonomer M being a reaction product of components (i), (ii), and (iii), said —component (i) having at least one olefinically unsaturated group and at least one hydroxyl, amine and/or thiol group, —component (ii) being a di- or triisocyanate, and —component (iii) having at least two terminal groups selected from hydroxyl, amine and/or thiol groups, c) 0-20 wt % of at least one vinyl monomer with at least one functional group, wherein the monomers a), b), and c) sum up to 100 wt. % of total monomers employed. The invention further provides a process to prepare the polymerizate, water-redispersible polymer powders obtainable from the polymerizate, and building material compositions containing the polymerizate and/or the water-redispersible polymer powders. | 05-15-2014 |
20140135429 | HYDRAULIC SETTING ADHESIVE WITH IMPROVED OPEN TIME - A hydraulic setting adhesive containing a hydraulic binder, fillers, a water retention agent, a sulfoalkylester surfactant, and optionally a redispersible polymer powder and/or a polymer dispersion, wherein the surfactant is represented by the formula of MSO | 05-15-2014 |
20140171553 | DRY MORTARS WITH LONG OPEN TIME AND INCREASED WATER FACTOR - The presently disclosed and claimed inventive concept(s) relates to a mixture composition for modifying a dry mortar formulation. The mixture composition comprises at least one redispersible polymer powder, a polyamide, a cellulose ether and a multivalent metal salt. The presently disclosed and claimed inventive concept(s) further relates a modified dry mortar formulation, a method of making the modified dry mortar formulation and a method of increasing the open time and water factor of the dry mortar formulation without deteriorating the mechanical strength of the cured dry mortar formulation. | 06-19-2014 |
20140187680 | FAST-CURING PERVIOUS CONCRETE MIX - A fast-curing pervious concrete mix made by combining: water; a cementitious material comprising portland cement and a supplementary cementitious material; aggregate sized to form a pervious concrete; a water reducer; a quantity of fibers; and a polymeric bonding agent, the mix curing to a compressive strength of at least 2,000 psi within 24 hours of placement. Also, a method of forming a pervious concrete structure by forming the fast-curing pervious concrete mix, placing the mix in a desired formation, and curing the placed mix, and a pervious concrete obtained by placing and curing the fast-curing pervious concrete mix. | 07-03-2014 |
20140235760 | POWDER COMPOSITION FOR RAPID SUSPENSION - The invention relates to a pulverulent composition which can be produced by bringing a powder which comprises at least one inorganic binder into contact with from 0.01 to 10% by weight, based on the total mass of the composition, of a liquid component comprising at least one copolymer which can be obtained by polymerization of a mixture of monomers comprising (I) at least one ethylenically unsaturated monomer which comprises at least one radical selected from the group consisting of carboxylic acid, carboxylic acid salt, carboxylic esters, carboxamide, carboxylic anhydride and carboximide and (II) at least one ethylenically unsaturated monomer having a polyalkylene oxide radical, where the liquid component contains at least 1% by weight of the at least one copolymer and at least 30% by weight of an organic solvent. Furthermore, a process for producing the liquid component, the use thereof and also specific copolymers are disclosed. | 08-21-2014 |
20140243457 | DRY BUILDING MATERIAL FORMULATIONS CONTAINING POLYMER POWDERS - Hydraulically setting compositions containing mineral binders exhibit improved adhesion when polymer powders produced by drying a silica sol and a redispersible polymer powder emulsion are added. | 08-28-2014 |
20140249254 | DISPERSING AGENT FOR SOLID SUSPENSIONS - A polymer having the formula (XIV) | 09-04-2014 |
20140256857 | POLYCARBOXYLATE ETHERS WITH BRANCHED SIDE CHAINS - A method of utilizing a copolymer for dispersing inorganic binders, the copolymer comprising as comonomers in copolymerized form at least one ethylenically unsaturated acid monomer and at least one ethylenically unsaturated, branched polyether macromonomer. Further disclosed are dispersants for inorganic binders, comprising the subject copolymer, and building material mixtures comprising inorganic binders and the subject dispersant. | 09-11-2014 |
20140275349 | CEMENTITIOUS COMPOSITION - A hydrated cementitious blend, and method of using same, the blend comprising:
| 09-18-2014 |
20140303288 | COMPOSITIONS AND METHODS FOR THE INTRODUCTION OF REINFORCEMENT FIBERS IN PORTLAND AND ASPHALT CEMENT CONCRETE - The present invention relates to a blend of reinforcement fibers for use in a variety of applications. In particular, the blend of reinforcement fibers can be used in cementitious compositions, such as Portland cement concrete and asphalt cement concrete compositions to reduce or preclude voids and/or cracks formed in the cement concrete upon placement. The blend of reinforcement fibers includes a plurality of first fibers and a plurality of different second fibers. The first and second fibers can be different based on coarseness/fineness, melting temperature, denier and specific chemical or material composition. In certain embodiments, one of the plurality of first fibers and the plurality of different second fibers has a melting temperature that is lower than the temperature of an asphalt cement concrete composition such that the plurality of first or different second fibers serves as a carrier/buffer to improve distribution and dispersion of the fibers in the Portland or asphalt cement concrete composition. | 10-09-2014 |
20140303289 | SETTING ACCELERATOR FOR BINDERS BASED ON CALCIUM SULFATE - A method for making a setting accelerator, especially for binders based on calcium sulfate, wherein gypsum together with at least one polycarboxylate is subjected to a dry grinding. | 10-09-2014 |
20140323614 | PLASTICIZING MIXTURE FOR A HYDRAULIC COMPOSITION - A mixture for a hydraulic composition, including an inerting agent for at least partially neutralizing the harmful effects of impurities in a hydraulic composition on the workability of the hydraulic composition; a first superplasticizer different from the inerting agent; and a second superplasticizer different from the first superplasticizer and the inerting agent and having a maximum plasticizing action at 20° C. developing after the peak of the plasticizing action at 20° C. of the first superplasticizer. | 10-30-2014 |
20140336306 | METHOD FOR PROVIDING MODIFIED CEMENT COMPOSITIONS, DRY MORTARS AND CEMENT-FREE MIXTURES - The present invention relates to methods for providing modified cement compositions having increased slip resistance and/or a decreased setting time in comparison to cement compositions comprising from 1 to 10 weight percent redispersible polymer powder (RDP) and water soluble cellulose ether in a specific amount from 0.1 to 1.0 weight percent, based on the total dry weight of said composition. Also provided are dry mortars comprising cement, RDP, water soluble cellulose ether and one or more additives selected from gelatin, bentonite and combinations thereof for use in such methods, and cement-free mixtures comprising water soluble cellulose ether and one or more additives selected from gelatin, bentonite and combinations thereof which may be added to cement binder for use a for use in such methods. | 11-13-2014 |
20140343194 | AQUEOUS SUSPENSIONS INCLUDING AN ALUMINOUS CEMENT AND BINDING COMPOSITIONS - Stabilized aqueous suspensions include aluminous cement and/or calcium sulfoaluminous cement and binding compositions including the aqueous suspension in combination with organic binders, which are stable at room temperature and at high temperature as well as methods for preparing the same are described. | 11-20-2014 |
20140371351 | DRY COMPOSITION BASED ON MINERAL BINDER AND INTENDED FOR THE PREPARATION OF A HARDENABLE WET FORMULATION FOR THE CONSTRUCTION INDUSTRY - The invention relates to a dry composition for the preparation of a wet formulation for the construction industry. | 12-18-2014 |
20140371352 | USE OF AT LEAST ONE SUPERABSORBENT POLYMER (SAP), IN A DRY COMPOSITION BASED ON MINERAL BINDER AND INTENDED FOR THE PREPARATION OF A HARDENABLE WET FORMULATION FOR THE CONSTRUCTION INDUSTRY - The invention relates to the use of a mixture comprising a mineral binder (a) and at least one SuperAbsorbent Polymer (SAP) (b), | 12-18-2014 |
20140371353 | ENGINEERED AGGREGATES FOR METAMATERIALS - Materials and Methods for implementing engineered aggregates in metamaterials are provided. The engineered aggregates may be tuned to oscillate resonantly under the influence of an external force improving the dynamic performance of the metamaterial by impeding dynamic excitation. The engineered aggregate generally comprise a multilayer resonant structure having at least a relatively heavy inner core surrounded by at least a compliant coating layer. The geometry and stiffness of the relative layers can be tuned to engineer a desired resonant frequency response within the aggregate for a chosen frequency range. The engineered aggregates are disposed in a matrix material to form a metamaterial. The engineered aggregates may be disposed within a mortar matrix to form a concrete metamaterial suitable for use, for example, in structural applications, including bunkers, shelters, etc. | 12-18-2014 |
20150011682 | CEMENT COMPOSITION - Lime-free admixture compositions comprise a combination of emulsifiers, toughening resins/plasticizers, adhesive resins, pumping aids for providing lubrication, rheology controllers, water retention agents, water repellents/overcoat finishes, accelerators, water reducers and air entraining agents. The lime-free admixture compositions are total replacements for lime. The lime-free admixture compositions are non-corrosive, making them safe to use by workers and they have rheological properties that make them suitable for use in various applications including concrete, mortars, grouts and stuccos (renders). | 01-08-2015 |
20150051319 | USE AS AN AGENT IMPROVING THE WORKABILITY OF AN AQUEOUS FORMULATION WITH A HYDRAULIC BINDER BASE, OF A (METH)ACRYLIC COMB-BRANCHED COPOLYMER AND AN ASSOCIATIVE ACRYLIC THICKENER - The present invention pertains to the use, in the manufacture of an aqueous formulation with a hydraulic binder base, of a combination of at least one comb-branched copolymer having a (meth)acrylic skeleton, onto which are grafted side-chains terminated by a hydrophilic group, and at least one ASE acrylic polymer. This results in improving the workability of said formulation, without causing a segregation phenomenon. | 02-19-2015 |
20150065615 | COPOLYMER FOR DISPERSANT FOR CEMENT, DISPERSANT FOR CEMENT, AND CEMENT COMPOSITION - An object of the present invention is to provide a novel copolymer capable of exerting excellent dispersibility to various kinds of cement including cement having low fluidity (difficult cement), and a dispersant for cement and cement composition including the copolymer. | 03-05-2015 |
20150080501 | Combination of a Stable Nitroxyl Radical and a Quinone Methide as Stabiliser for Reaction Resin Mortars Based on Radically Curable Compounds - The use of a combination of at least one stable nitroxyl radical and at least one quinone methide as a stabilizer for resin mixtures and reactive resin mortars, each based on radically curable compounds, is described. Resin mixtures and in particular reactive resin mortars may be combined very effectively with a combination of at least one stable nitroxyl radical and at least one quinone methide to make them stable in storage. | 03-19-2015 |
20150105498 | BULK MATERIAL COVER COMPOSITIONS - A cover composition comprises liquid, cement and/or fly ash, fiber, water dispersible polymer and acid. | 04-16-2015 |
20150111995 | CARBOXYL GROUP CONTAINING ACRYLIC RDP AND DRY MIX CEMENT FORMULATIONS CONTAINING THEM - The present invention provides water redispersible polymer powder (RDP) compositions that perform well even when redispersibility is fair comprising carboxyl group containing multi-stage acrylic copolymers having an alkali-soluble resin outer stage and one or more inner stage acrylic (co)polymer having a glass transition temperature (Tg) of from −40 to 50° C., one or more nucleating agent having a boiling point of 150° C. to 500° C., and a water solubility of 3.5% or less, preferably, an alkyl isobutyrate and a branched alkyl isobutyrate, and one or more colloidal stabilizer. Also provided are dry mix cement tile adhesive compositions comprising the water redispersible polymer powder an ordinary Portland cement, an alumina rich cement with an alumina content of from 30 wt. % to 85 wt. %, and calcium sulfate. The invention enables a broad range of the claimed acrylic polymers in useful RDPs. | 04-23-2015 |
20150133584 | Method For Treating Clay And Clay-Bearing Aggregates And Compositions Therefor - The present invention provides compositions and methods involving the use of a carboxylate graft polymer having high molecular weight and low ratio of acid-to-polyoxyalkylene groups. Such clay-mitigation is particularly useful for treating clay and clay-bearing aggregates, particularly those aggregates used for construction purposes. The present invention minimizes the need to wash the aggregates, thus preserving fine aggregates (“fines”) content in construction materials, and thereby beneficiating the performance and/or properties of construction materials containing the clay-bearing aggregates. | 05-14-2015 |
20150141553 | LOW FORMALDEHYDE VINYL ESTER/ETHYLENE EMULSION COPOLYMERS - A vinyl ester/ethylene copolymer is prepared by emulsion copolymerization of a monomer mixture comprising at least one vinyl ester, ethylene, a stabilizing system comprising polyvinyl alcohol and a free radical redox polymerization initiator system comprising i-butyl hydroperoxide as an oxidizing agent and at least one of a sulfuric acid-based compound and erythorbic acid or a salt thereof as a reducing agent. The monomer mixture comprises from 70 wt % to 95 wt % of said at least one vinyl ester and from 5 wt % to 30 wt % of ethylene based on the total weight of monomers in said mixture and the copolymer has a formaldehyde content of less than 5.0 ppmw as determined by ISO-15173. | 05-21-2015 |
20150141554 | TWO COMPONENT CEMENT COMPOSITION - The invention relates to a cement formulation with two liquid components. This alleviates the problems which result from dust generation where a powdered cement component is employed. Furthermore, the cement may be formed with conventional liquid handling and mixing equipment. The cement binder formulation includes a plasticizer. As the plasticizer is non-volatile, it remains an integral part of both the formulation and the final product obtained after application and drying of that formulation. | 05-21-2015 |
20150299042 | HARDENING ACCELERATOR COMPOSITION - The invention relates to a process for the preparation of a hardening accelerator composition by reacting a calcium source selected from calcium hydroxide, calcium oxide with a water-soluble silicate compound in the presence of at least one water-soluble polymeric dispersing agent and the hardening accelerator composition obtainable by said process. The composition has a low content of anions and of alkali cations and is therefore broadly applicable in building material mixtures. | 10-22-2015 |
20150307399 | ADDITIVE FOR HYDRAULICALLY SETTING MIXTURES - The present invention relates to a redispersible polymer powder (RDP) composition for use in the preparation of dry mortar formulations, in particular, cement based tile adhesives (CBTA), adhesive, ETICS base coat or adhesive formulations and/or grouts. The invention further relates to a dry mortar formulation comprising said RDP composition. Furthermore, the invention is directed to the use of such RDP compositions for increasing, once cured, the adhesive, flexural and/or compressive strength of a dry mortar formulation. | 10-29-2015 |
20150315079 | FIRE RESISTANT CONCRETE - The present invention relates to improved concrete elements, particularly to high-performance self-compacting concrete (HP-SCC); to cementitious compositions suitable for producing such concrete elements; to methods of manufacturing such concrete elements and such cementitious compositions; to the use of specific additives in concrete elements and cementitious mixtures. The inventive compositions comprise an effective amount of polymer fibres and of hydrogels. The inventive concrete elements show improved fire resistance, particularly towards explosive spalling. | 11-05-2015 |
20150321959 | LOW DUST JOINT COMPOUND AND METHOD OF MAKING THE SAME - A joint compound or wall repair composition and the method of making the same is disclosed that reduces the amount of airborne dust emitted during traditional sanding processes. Generally, such a reduction can be achieved by combining a first binder that has a high glass transition temperature and a second binder that has a low glass transition temperature with conventional joint compound compositions. | 11-12-2015 |
20150329425 | SUPERPLASTICIZERS FOR CONCRETE AND CEMENT MATERIALS AND PROCESS FOR PRODUCING THE SAME - Superplasticizer for concrete and other cement mixtures, which is intrinsically low-foaming, promotes the early mechanical strength development and retains the workability of fresh concrete for longer time, obtainable by reacting acid, not neutralized, polycarboxylic polymers with monofunctional polyethers and difunctional polyethers in the absence of strong acidic catalysts. | 11-19-2015 |
20150336849 | COLOURANTS - A method of colouring cementitious building materials such as concrete is disclosed. The method uses flowable, spray-dried, particulate formulations of inorganic pigments prepared using a selection of formulants that do not substantially effect primary ettringite formation. Quantities of the formulations may conveniently be dispensed into a slurry of cement and water by gravimetric or volumetric means. | 11-26-2015 |
20150344369 | CONCRETE ADMIXTURE AND PRODUCTION METHOD - A method of enhancing efficiency of a batching and/or mixing process for a concrete cementitious composition, includes adding an admixture containing dispersant molecules that bind very rapidly with cement particles and provide a dispersing effect and initial slump during the mixing process, wherein the dispersing effect diminishes rapidly. A multi-component admixture system for cementitious compositions includes: an ultrafast dispersant that binds very rapidly with cement particles, providing a dispersing effect and initial slump, wherein the dispersing effect diminishes rapidly; a general water reducing cement dispersant for providing workability; and, a latent dispersant copolymer having moieties capable of undergoing base-promoted hydrolysis to generate active cement binding sites over time, to extend slump and workability. | 12-03-2015 |
20150368409 | METHOD FOR PRODUCING POLYMER POWDERS THAT CAN BE EASILY REDISPERSED IN WATER - The present invention relates to a process for the preparation of a readily water-redispersible polymer powder by spray drying of an aqueous polymer B dispersion, wherein the spray drying of the aqueous polymer B dispersion is effected in the presence of a polymer A, wherein polymer A has a glass transition temperature ≧60° C., a weight average molecular weight Mw≧1000 and ≦25000 g/mol, a polydispersity index ≦5 and is composed of ≧5 and ≦50 wt % of at least one α,β-monoethylenically un-saturated mono- or dicarboxylic acid and/or anhydride (monomer A1), and ≧50 and ≦95 wt % of at least one other ethylenically un-saturated compound which is copolymerizable with the monomers A1 (monomer A2), in polymerized form, wherein the monomer amounts A1 and A2 sum up to 100 wt %. | 12-24-2015 |
20160002107 | COATED-FINE-AGGREGATE, CONCRETE COMPOSITION AND METHOD - A concrete composition and method include a portion of fine aggregate bearing a coating of a polymer, which may be a continuous coating layer or a layer of powdered, discrete particles embedded in a binder. The polymeric coating may be a super absorbent polymer (insoluble in water, but absorbing water), or another polymer such as the acrylamides, co-polymers thereof, polyacrylamides, or the like (soluble in water). The coating absorbs water, but particles are too small to form significant voids. Water is absorbed into the concrete mix in far greater proportions (e.g. w/c ratio over 0.5) improving workability, doubling workability time, and improving ultimate compressive stress (strength). | 01-07-2016 |
20160009599 | THICKENER FOR HYDRAULIC COMPOSITION, ONE-COMPONENT WATER-REDUCING AGENT, AND PREPARATION OF HYDRAULIC COMPOSITION | 01-14-2016 |
20160016850 | PROCESS FOR THE PREPARATION OF CEMENT, MORTARS, CONCRETE COMPOSITIONS CONTAINING A CALCIUM CARBONATE - BASED FILLER (PRE)- TREATED WITH A SUPERPLASTICIZER, COMPOSITIONS AND CEMENT PRODUCTS OBTAINED AND THEIR APPLICATIONS - The invention concerns a PROCESS for the preparation of cement/mortar/concrete (for simplicity: “cement”) compositions or systems, (hereafter “cement” compositions or systems for simplicity), of a general known type, in which the filler(s) is/are comprising or consist of “calcium carbonate-based filler(s)”, comprising at least one step where the said filler(s) is/are treated with an efficient treating amount of at least one treating agent consisting of or comprising superplastifier(s). The main purpose of this invention is to build a process aimed at providing improved, “High performance”, FLUID, cement or mortars or concrete systems or compositions having an improved compacity, an improved flowability, and globally speaking a definitely improved “workability”, and “regularity” of the properties of the final systems. The present invention also concerns a filler for “cement” compositions, characterized in that if consists of, or comprises, a calcium-carbonate-based filler or blends of same, pre-treated with an “efficient amount” of at least one superplastifier. | 01-21-2016 |
20160016851 | RAPIDLY SUSPENDABLE PULVERULENT COMPOSITION - The invention relates to a pulverulent composition comprising, based on the overall mass of the composition, A) at least 20 wt % of a calcium sulfate-based binder and B) 0.01 to 4 wt % of at least one copolymer obtainable by polymerizing a mixture of monomers comprising (I) at least one ethylenically unsaturated monomer which comprises at least one radical from the series carboxylic acid, carboxylic salt, carboxylic ester, carboxylic amide, carboxylic anhydride, and carboxylic imide and (II) at least one ethylenically unsaturated monomer having a polyalkylene oxide radical, the pulverulent composition being producible by a method in which a powder component comprising a calcium sulfate-based binder is contacted with a liquid hydrous component comprising less than 30 wt % of an organic solvent, comprising B), the liquid hydrous component being used in an amount of less than 20 wt %, based on the overall mass of the pulverulent composition, and the pulverulent composition comprising no hydraulic binder. A binder composition comprising an inventive pulverulent composition is also disclosed. | 01-21-2016 |
20160017082 | Plasticizer Having Cationic Side Chains - Provided are cationic comb polymers, obtainable by polymerizing a monomer mixture, which contains at least one monomer having at least one cationic group covalently bonded to the monomer and which contains at least one monomer of the formula R | 01-21-2016 |
20160017140 | ALKALI-SOLUBLE RESIN (ASR) SHELL EPOXY RDP EXHIBITING IMPROVED SHELF STABILITY - The present invention provides shelf stable redispersible multilayer polymer particles (RDPs) comprising a major proportion of epoxy resins, a methacrylic acid or anhydride containing alkali soluble polymer outer layer and a hydrophobic chain transfer agent or a high glass transition temperature colloidal stabilizer, such as poly(vinyl pyrrolidinone) or its copolymer, as well as to methods of making the same. | 01-21-2016 |
20160024307 | USE OF POLYCARBOXYLATE ETHERS IN COMBINATION WITH OTHER ADDITIVES FOR MILLING CEMENT - Use of an aqueous composition containing at least one polycarboxylate ether as cement grinding aid, wherein the aqueous composition contains one or more additives, or the aqueous composition is used in combination with one or more additives, and wherein the additive is selected from 1,3-propanediol, a carboxylic acid, a sulfonated amino alcohol, boric acid, a salt of boric acid, a salt of phosphoric acid, sorbitol, a saccharide, a gluconate, iron sulfate, tin sulfate, an antimony salt, an alkali salt, an alkaline earth salt, lignin sulfonate, glycerol, melamine, melamine sulfonate and mixtures thereof. | 01-28-2016 |
20160031759 | POLYCARBOXYLIC ACID POLYMER FOR BLENDING IN CEMENT - An object of the present invention is to provide a polycarboxylic acid polymer for blending in cement for a cement composition superior both in dispersion and dispersibility-retention. The object was achieved by providing the present invention of a polycarboxylic acid polymer for blending in cement, | 02-04-2016 |
20160039716 | ULTRA-HIGH PERFORMANCE GLASS CONCRETE AND METHOD FOR PRODUCING SAME - There is provided a Ultra-high performance glass concrete (UHPGC) including between 300 and 1000 kg/m | 02-11-2016 |
20160060171 | USE OF COMB POLYMERS FOR CONTROLLING THE RHEOLOGY OF MINERAL BINDER COMPOSITIONS - A comb polymer is used for increasing the flow rate and/or reducing the viscosity of a mineral binder composition, where the comb polymer has a main chain including acid groups and there are pendent chains linked to the main chain, and where the average number-average molar mass of all of the pendent chains is from 120 to 1000 g/mol and the molar ratio of the acid groups to the side chains is in the range from 0.5 to 2. | 03-03-2016 |
20160075602 | Polymeric Concrete Admixture Containing a New Class of Superplasticizer Polymers - A novel admixture approach to be used in various concrete formulations as a means of modifying and enhancing performance of the concrete. This invention will provide benefits in a variety of ways, including enhanced control over concrete curing times, increased strength and beneficial changes in concrete formulations, particularly useful for specific applications. | 03-17-2016 |
20160090323 | Low-To-Mid-Range Water Reduction Using Polycarboxylate Comb Polymers - Methods for plasticizing cementitious mixtures having relatively high water/cement ratio (at least 0.40 or higher) are surprisingly improved in terms of dosage efficiency, compared to conventional “superplasticizer” polycarboxylate polymers, when the polycarboxylate polymer is formed from particularly small-sized, specifically selected monomer constituents: (A) polyoxyalkylene monomer represented by the structural formula (R | 03-31-2016 |
20160107935 | LIQUID DISPERSANT COMPOSITION FOR GYPSUM - The present invention relates to a liquid dispersant composition for gypsum, containing (A) a particular polycarboxylic acid copolymer, a particular nitrogen-containing compound, such as a particular alkylamine, and water, and having pH of 7.0 or more and 13.0 or less at 20° C. | 04-21-2016 |
20160168029 | ADDITIVE SYSTEM INCLUDING A POLYALKOXYLATED PHOSPHONATE, A POLYALKOXYLATED POLYCARBOXYLATE AND A RETARDING AGENT, AND USE THEREOF | 06-16-2016 |
20160168033 | ADMIXTURES AND ADMIXTURE FORMATION USED IN CONCRETE TECHNOLOGY | 06-16-2016 |
20160194430 | BIO-BASED POLYCARBOXYLATE ETHER AND METHODS FOR THE PRODUCTION THEREOF | 07-07-2016 |
20160250775 | Fast Response Time In Slump Monitoring Systems | 09-01-2016 |
20170233292 | CEMENT COMPOSITION ADDITIVE CONTAINING POLYCARBOXYLIC ACID COPOLYMER, ZINC OXIDE PARTICLES AND GLUCONATE | 08-17-2017 |