Class / Patent application number | Description | Number of patent applications / Date published |
521137000 | At least one polymer is derived from a -N=C=X reactant wherein X is a chalcogen atom or wherein the polymer-forming system contains the same type of reactant | 62 |
20080262119 | PROCESS FOR PREPARING POLYMER POLYOLS - The invention relates to a process for the batch or semi-batch preparation of a polymer polyol, which process comprises mixing a base polyol, one or more ethylenically unsaturated monomers, a polymerization initiator, optionally a macromer, and optionally a chain transfer agent, and polymerizing the mixture thus obtained at a temperature of 50 to 200° C., wherein one or more of the compounds to be mixed are fed while having a temperature that is higher than ambient temperature. | 10-23-2008 |
20080269367 | Prepolymer containing a Liquid Hardness Agent For Open Cell Foams - The present technology provides at least one prepolymer comprising a polyisocyanate and a ring-containing isocyanate reactive component as a load-bearing capacity improvement agent in flexible polyurethane foam manufacture. The ring-containing component eliminates and/or reduces the need for a copolymer polyol containing suspended solids in the manufacture of flexible foam products. This can reduce production costs, reactivity variations, filter plugging, color variations, foam shrinkage/tightness, foam irregularity, and foam malodor while maintaining an adequate load-bearing capacity. | 10-30-2008 |
20080319095 | Thermosetting Polyamide Foam, Uses Thereof, and Method for Producing Thermosetting Polyamide - A thermosetting polyamide foam prepared by reacting a polyisocyanate compound with a polyester polycarboxylic acid using a compound having a P═N bond as a catalyst under conditions of an NCO index of not less than 1.6. The polyamide foam is excellent in heat resistance (thermal decomposition resistance) and moldability, and is applicable for heat-resistant vibration dampers, heat-resistant sound-absorbing materials and heat-resistant cushioning materials. | 12-25-2008 |
20090005467 | Polyol Composition and Low Resilience Polyurethane Foam - A polyol composition contains polyol (a-1) in an amount of from 20 to 80% by weight, having an average functionality of from 1.5 to 4.5 and a hydroxyl value of from 20 to 70 mgKOH/g, and polyol (a-2) in an amount of from 20 to 80% by weight, having an average functionality of from 1.5 to 4.5 and a hydroxyl value of from 100 to 300 mgKOH/g, and containing at least amine as an initiator. | 01-01-2009 |
20090018226 | Polyurethane foam containing synergistic surfactant combinations and process for making same - The present invention relates to a composition and process for preparing fine-celled polyurethane foam obtained from frothing a polyurethane foam-forming composition possessing a synergistic combination of silicone surfactants. | 01-15-2009 |
20090036562 | Process for preparing closed-cell water-blown rigid polyurethane foams having improved mechanical properties - The present invention is directed to a process for preparing water-blown rigid polyurethane foams having at least an 80% closed-cell content which involves reacting a) at least one polyol mixture which is composed of (i) at least one polymer polyol; (ii) at least one polyol having a hydroxyl value within the range of from about 200 to about 800; and (iii) optionally, at least one polyol having a hydroxyl value within the range of from about 25 to about 115; with b) at least one polymeric isocyanate and/or a prepolymer thereof; in the presence of c) optionally, at least one catalyst; d) water; and e) optionally, at least one additive or auxiliary agent. The present invention is also directed to the closed-cell water blown rigid polyurethane foams produced by the process of the present invention. The invention is further directed to a polyurethane-foam forming mixture which is used to produce the water-blown rigid polyurethane foams of the present invention. Foams produced according to the present invention have reduced friability and acceptable adhesion to substrates as well as acceptable compressive strength. | 02-05-2009 |
20090054542 | EO/PO BLOCK COPOLYMERS USEFUL AS STABILIZERS FOR PUR FOAMS - The invention relates to compositions for producing hydrophilicized polyurethane foams, in particular for wound management, wherein the composition, containing a polyurethane dispersion and specific additives, is frothed and dried. | 02-26-2009 |
20090069457 | Open-cell polyurethane foam and process for its manufacture - There is provided a predominantly open-cell polyurethane foam obtained from a predominantly open-cell polyurethane foam-forming reaction medium which comprises:
| 03-12-2009 |
20090105359 | Preparation of Liquid Isocyanurate-Modified Polymethylene Bis(Phenylisocyanate) Compositions of Controlled Viscosities - Disclosed is a method for the production of highly stable, liquid isocyanurate-modified PMDI compositions having relatively higher viscosity and a generally comparable functionality, as compared to conventional PMDI. An admixture of the isocyanurate-modified PMDI with conventional PMDI is suitable for use in the manufacture of a variety of polyurethane products, including rigid and flexible foams, coatings, elastomers and sealants. Foams produced using this admixture exhibit properties that are comparable to foams produced from standard polymeric MDI of comparable viscosity that don't contain isocyanurate moieties. | 04-23-2009 |
20090118386 | PROCESS FOR MAKING A POLYURETHANE FOAM - Process for preparing a polyurethane foam, according to the free rise process, the foam having a free rise density of 5-40 kg/m | 05-07-2009 |
20090124718 | POLYURETHANE FOAM - A polyurethane foam is disclosed and described. The polyurethane foam is formed by combining a first component comprising at least one polyol with a second component comprising at least one polyisocyanate. The ratio of the number of isocyanate equivalents in the second component to the number of hydroxyl equivalents in the second component is less than 1.0. The foam exhibits low levels of free diisocyanate monomer, thereby reducing the amount of hazardous, volatile organic compounds. As a result, the foam can be prepared and installed without the need for ventilation equipment, external sources of fresh air, and the like. | 05-14-2009 |
20090124719 | POLYURETHANE FOAMS FROM POLYTRIMETHYLENE ETHER GLYCOL - Provided are polyurethane foams containing polytrimethylene ether segments derived from polytrimethylene ether glycols. | 05-14-2009 |
20090131546 | Rigid, Closed-cell, Graft-polymer Foam; Rigid Flexible Cellular Foam; Rigid Flexible Cellular Foam Mixture; Rigid Flexible Cellular Foam Mixture; and Method for Manufacturing a Rigid, Closed-Cell, Graft-Polymer Foam - Expanded products, more specifically, rigid or semi-flexible foams of low density from 1.5 to 12 lbs/ft | 05-21-2009 |
20090247657 | Thermal stability of polyurethane-modified polyisocyanurate foam - A polyurethane-modified polyisocyanurate (PU-PIR) foam exhibiting improved thermal stability is provided. The foam has incorporated therein a high molecular weight ammonium polyphosphate (APP). APP is employed as a partial or complete substitute for flame retardants conventionally employed in PU-PIR foams. The foams of the invention exhibit excellent and improved thermal stability characteristics as compared to foams to which no APP has been added. | 10-01-2009 |
20090270523 | Polyurethane foam-forming compositions containing polysilsesquioxane cell opening agents - The present invention relates to polyurethane foam-forming composition containing polysilsesquioxanes that provide high resilience flexible polyurethane molded foams having improved foam dimensional stability. | 10-29-2009 |
20100036008 | HIGHLY ELASTIC FLEXIBLE POLYURETHANE FOAMS - The present invention relates to a highly elastic flexible polyurethane foam obtainable by mixing a) polyisocyanate with b) at least one relatively high molecular weight compound having at least two reactive hydrogen atoms, c) hyperbranched polyester c1) of the A | 02-11-2010 |
20100056659 | Decorative molded foams with good impact resistance and fire retardant properties - This invention relates to fire-resistant, flexible, molded, medium density polyurethane foams. These foams typically have a density of from 10 to 30 pcf. The foams are the reaction product of a) at least one polyester polyol, b) at least one highly branched polyether polyol, c) at least one chain extender, d) a polymethylene poly(phenyl isocyanate), an isocyanate group containing prepolymer based on a polymethylene poly(phenyl isocyanate), or mixtures thereof, e) a solid flame retardant and f) water. This invention also relates to a process for preparing these polyurethane foams in open molds. | 03-04-2010 |
20100160469 | Polymer polyols comprising a natural oil base polyol, polyurethane foams comprising these polymer polyols and processes for their preparation - This invention relates to polymer polyols comprising the free-radical polymerization product of a base polyol, at least one ethylenically unsaturated monomer, and, optionally, a preformed stabilizer, in the presence of at least one free-radical polymerization initiator and at least one chain transfer agent, in which the base polyol is a natural oil. A process for preparing these polymer polyols is also described. The present invention also relates to a polyurethane foam prepared from these polymer polyols and to a process for the preparation of these polyurethane foams. | 06-24-2010 |
20100160470 | Flexible Polyurethane Foam - A flexible polyurethane foam having a density of <100 kg/m | 06-24-2010 |
20100190879 | COMPOSITIONS COMPRISING FLUORINE-CONTAINING POLYMER AND SILOXANE - Compositions according to the invention comprise water, a polyurethane or poly(meth)acrylate having perfluoroalkyl groups and a special siloxane. The treatment of fiber materials, in particular of nonwovens made of polypropylene, leads to articles which have oil-, water- and alcohol-repellency properties and can be used in the medical sector. | 07-29-2010 |
20100190880 | LOW-DENSITY POLYURETHANE FOAMS AND USE THEREOF IN SHOE SOLES - The present invention relates to a process for the production of a polyurethane molding having a density of 150 to 350 g/L, in which a) polyisocyanate prepolymers, obtainable from a polyisocyanate component (a-1), polyol (a-2), comprising polypropylene oxide, and chain extender (a-3), b) polyetherpolyols having a functionality greater than 2.0, c) polymer polyetherpolyols, d) chain extender, e) catalysts, f) blowing agent, comprising water, and, if appropriate, g) other assistants and/or additives are mixed with a reaction mixture and cured in a mold to give the polyurethane molding. The present invention furthermore relates to polyurethane moldings obtainable by a process according to the invention and to shoe soles comprising polyurethane moldings according to the invention. | 07-29-2010 |
20100204353 | USE OF NATURAL OIL BASED COMPOUNDS OF LOW FUNCTIONALITY TO ENHANCE FOAMS - Isocyanate reactive materials of natural origin having an average isocyanate reactive functionality of less than about 1.5 can be used to enhance polyurethane foams. For instance, use of such materials often results in more open foams than is obtained in the same formulation without the materials. The materials also help maximize the level of renewable resource materials used in foams, especially with viscoelastic foams. The invention includes a polyol composition comprising at least one natural oil isocyanate reactive material having an average isocyanate reactive functionality of less than 1.5 in an amount greater than that naturally present in any natural oil polyol in the composition. While it is preferred to include at least one natural oil polyol in the polyol composition, doing so is optional. The invention additionally includes a process of preparing a polyurethane comprising (a) supplying an isocyanate composition comprising at least one polyisocyanate; (b) supplying at least one polyol composition as previously described; (c) admixing the isocyanate composition and the polyol composition; and (d) exposing the admixture to reaction conditions such that at least one polyurethane is formed. | 08-12-2010 |
20100261804 | POLYOL COMPOSITION, FOAMING COMPOSITION AND POLYURETHANE FOAM - Disclosed is a polyol composition containing an aromatic polyester polyol having a hydroxyl number of 300-500 mgKOH/g and an average number of functional groups of 2.0-2.5, a medium-chain polyether polyol having a hydroxyl number of 100-250 mgKOH/g and an average number of functional groups of 2.0-4.0 and composed of a polyoxypropylene unit, and a long-chain polyether polyol having a hydroxyl number of 15-40 mgKOH/g, an average number of functional groups of 2.0-4.0 and an oxyethylene content of not more than 14% by weight and mainly composed of a polyoxypropylene unit. | 10-14-2010 |
20100292357 | PROCESS FOR PREPARING POLYDIMETHYLSILOXANES ON SULPHONIC ACID CATION EXCHANGE RESINS - The invention relates to a process for the targeted reorganization of polydimethylsiloxanes over sulphonic acid-containing cation exchange resins which have water contents of 8 to 25% by weight, and polydimethylsiloxanes thus prepared and the use thereof. | 11-18-2010 |
20110034575 | VISCO-ELASTIC POLYURETHANE FOAM - The invention relates to a polyether polyol composition for the preparation of polyurethane foams, comprising:
| 02-10-2011 |
20110034576 | THE INVENTION RELATES TO THE USE OF FOAM STABILIZERS, PRODUCED ON THE BASIS OF SUSTAINABLE RAW MATERIALS, FOR PRRODUCING POLYURETHANE FOAMS - Preparation and use of polyurethane foams with the use of foam stabilizers of the general formula (I) | 02-10-2011 |
20110166244 | PROCESS FOR THE PREPARATION OF FLEXIBLE, RESILIENT POLYURETHANE FOAM AND THE RESULTING FOAM - The flexible, resilient polyurethane foam is prepared by reacting at least one polyisocyanate with one or more liquid compounds which have at least two isocyanate reactive groups and at least one of which contain one or more solid polymers stably dispersed therein in an amount of 2.5 to 35 parts per 100 parts of said liquid isocyanate reactive groups containing compounds. The wet compression set of the flexible polyurethane foam could be considerably reduced by including in said liquid isocyanate reactive groups containing compounds, per 100 parts thereof, (I) 50 to 80 parts of one or more polyoxyalkylene polyols having an oxyethylene unit content of at least 40 wt. %, a hydroxyl number of between 20 and 100, and a nominal functionality of 2 to 4; and (II) 20 to 50 parts of one or more further polyoxyalkylene polyols containing no oxyethylene units or having an oxyethylene unit content lower than 40 wt. %, and having a hydroxyl number of between 20 and 100 and a nominal functionality of 2 to 4. | 07-07-2011 |
20110201711 | POLYMERIC BONE DEFECT FILLER - A bone defect filler for implantation in a bone defect of a patient includes a particulate polymer distributed within a polymeric binder. The particulate polymer includes a plurality of particles, which may have substantially the same material composition as the polymeric binder. The particles of the particulate polymer may be formed in a variety of shapes and/or sizes to provide the bone defect filler with improved pore interconnectivity, material expansion and contamination characteristics, while maintaining sufficient mechanical strength and handling characteristics for bone repair applications. The bone defect filler also provides the flexibility to be molded or shaped in situ to fill the bone defect. | 08-18-2011 |
20110201712 | POLYURETHANE FOAM CONTAINING SILICONE - Low density, flame-retardant polyurethane foams are prepared by reaction of a polyisocyanate with a branched organopolysiloxane prepared by reaction of a reactive hydrogen-functional organopolysiloxane with a polyisocyanate followed by reaction with an amine. Water is preferably used as a blowing agent in a one shot process. | 08-18-2011 |
20110224321 | Biomaterial - The present invention provides a triblock copolymer and a viscoelastic biostable foam comprising the same. | 09-15-2011 |
20110257284 | PROCESS FOR PRODUCING FLAME-RETARDANT PU FOAMS - The present invention describes a process for producing flame-retardant polyurethane foams. The process of the invention includes the use of hyperbranched, nitrogen-containing polymers for providing flame retardancy to polyurethane foams. The amounts used of the hyperbranched compounds are preferably from 5 to 20% by weight, based on the polyol component. The N content of preferred nitrogen-containing compounds is at least 2% by weight. The N content of the polyurethane foams of the invention is from 1 to 8% by weight from the hyperbranched polymer. Compounds in particular used are hyper-branched polyureas, hyperbranched polyamides, and in particular hyperbranched polylysines, hyperbranched polyisocyanurates, and hyperbranched polyesteramides. | 10-20-2011 |
20110281965 | POLYURETHANE CASTING COMPOUNDS - The invention relates to the use of polyurethane casting compounds for producing light-resistant compact or expanded polyurethane or polyurethane urea bodies that are characterized by exceptionally good mechanical and visual properties and particularly have a very high heat shape retention. | 11-17-2011 |
20110301255 | EPOXIDE-BASED STRUCTURAL FOAM COMPRISING THERMOPLASTIC POLYURETHANES - Disclosed is a thermally expandable and curable material containing: a) at least one epoxide prepolymer; b) at least one heat-activated curing agent for the prepolymer; c) at least one foaming agent; and d) at least one thermoplastic, non-reactive polyurethane selected from among polyurethanes containing a polyester chain. Also disclosed are the use of such a material for stiffening or reinforcing components as well as an extruded or injection-molded article made of such a material. | 12-08-2011 |
20110301256 | FINE PARTICLE-DISPERSED POLYOL COMPOSITION, METHOD FOR PRODUCING POLYMER POLYOL, AND METHOD FOR PRODUCING POLYURETHANE RESIN - A polyol composition comprising a polyol (a) and resin fine particles (b) dispersed in the polyol (a), and a method for producing the polyol composition are provided, wherein the resin fine particles (b) are particles such that an arithmetic standard deviation by volume of a particle size distribution of the particles, derived from respective values in 85 divisions of a range of 0.020 to 2000 μm determined by a laser diffraction/scattering particle size distribution analyzer, is not more than 0.6. A resin fine particle-dispersed polyol composition that, even if the resin particles dispersed in the polyol have a small particle diameter, allows the production of a polyurethane resin having an excellent mechanical strength such as elongation at break, and a method for producing the same, are provided. | 12-08-2011 |
20110301257 | FINE PARTICLE-DISPERSED POLYOL COMPOSITION, METHOD FOR PRODUCING POLYMER POLYOL, AND METHOD FOR PRODUCING POLYURETHANE RESIN - A polyol composition comprising a polyol (a) and resin fine particles (b) dispersed in the polyol (a), and a method for producing the polyol composition are provided, wherein the resin fine particles (b) are particles such that an arithmetic standard deviation by volume of a particle size distribution of the particles, derived from respective values in 85 divisions of a range of 0.020 to 2000 μm determined by a laser diffraction/scattering particle size distribution analyzer, is not more than 0.6. A resin fine particle-dispersed polyol composition that, even if the resin particles dispersed in the polyol have a small particle diameter, allows the production of a polyurethane resin having an excellent mechanical strength such as elongation at break, and a method for producing the same, are provided. | 12-08-2011 |
20120016048 | FLEXIBLE POLYURETHANE FOAMS MADE FROM ALKOXYLATED NATURAL OIL - The present invention provides flexible conventional polyurethane foams made from at least one polyisocyanate and at least one vegetable oil alkoxylated in the presence of a double metal cyanide (DMC) catalyst, optionally at least one non-vegetable oil-based polyol, generally in the presence of a blowing agent and optionally in the presence of a surfactant, pigment, flame retardant, catalyst or filler. The alkoxylated natural oil must have (a) an ethylene oxide content in the alkoxylated segment greater than 20% by weight, (b) a primary hydroxyl group content of at least 10%, with the sum of (a)+(b) being at least 30% but no greater than 60%, The alkoxylated natural oils are environmentally-friendly, bio-based polyols which can be used to increase the “green” content of polyurethane foams without having detrimental effects on foam properties. | 01-19-2012 |
20120157558 | SILICONE STABILIZERS FOR RIGID POLYURETHANE OR POLYISOCYANURATE FOAMS - A polyether siloxane of formula (I) | 06-21-2012 |
20120178840 | POLYMER-DISPERSED POLYOL AND PROCESS FOR PRODUCING FLEXIBLE POLYURETHANE FOAM - To provide a polymer-dispersed polyol made by using materials derived from a natural fat/oil, which has a low viscosity, without lowering the biomass degree and without impairing the performance of a flexible polyurethane foam to be obtained. Further, to provide a process for producing a flexible polyurethane foam using the polymer-dispersed polyol. A polymer-dispersed polyol, comprising polymer particles dispersed in a matrix containing a polyol (a1) derived from a natural fat/oil and an epoxidized natural fat/oil (x). And, a process for producing a flexible polyurethane foam, which comprises reacting a polyol containing the above polymer-dispersed polyol and a polyisocyanate compound in the presence of a catalyst and a blowing agent. | 07-12-2012 |
20120238656 | PROCESS FOR THE PREPARATION OF FLEXIBLE POLYURETHANE AND FOAM OBTAINED THEREBY - The present invention is directed to a process for the preparation of a flexible polyurethane foam and to the polyurethane foam prepared by that process. The foam is in particular a flexible polyurethane foam which has a density of between 25 and 120 kg/m | 09-20-2012 |
20120316254 | COMPOSITE MEMORY FOAM AND USES THEREOF - The invention relates to composite memory foam and its uses in the manufacture of mattresses, pillows and other body supports. The invention also relates to a method of manufacturing mattresses, pillows and other body support from composite memory foam. The composite memory foam includes a polyurethane foam and granules of a polyurethane polymer embedded in the polyurethane foam. | 12-13-2012 |
20130018118 | POLY-URETHANE RESIN AND POLY-URETHANE ABSORBING PAD USING THE SAMEAANM CHOI; Sang-SoonAACI DaejeonAACO KRAAGP CHOI; Sang-Soon Daejeon KRAANM TAE; Young-JiAACI Gwacheon-siAACO KRAAGP TAE; Young-Ji Gwacheon-si KRAANM SHIN; Dong-MokAACI DaejeonAACO KRAAGP SHIN; Dong-Mok Daejeon KRAANM YOON; Keong-YeonAACI SeoulAACO KRAAGP YOON; Keong-Yeon Seoul KRAANM KIM; Na-RiAACI SeoulAACO KRAAGP KIM; Na-Ri Seoul KRAANM AHN; Byeong-InAACI DaejeonAACO KRAAGP AHN; Byeong-In Daejeon KR - The present invention relates to a polyurethane resin composition including a first polyurethane resin and a second polyurethane resin that are different from each other in their compositions, an organic solvent, and a surfactant, and a polyurethane mounting pad manufactured from the resin composition. | 01-17-2013 |
20130059935 | POLYURETHANE WITH IMPROVED ABRASION RESISTANCE, THE METHOD FOR PREPARING THE SAME AND USE THEREOF - The present invention pertains to a polyurethane with improved abrasion resistance. The reactive component for preparing the polyurethane includes a polybutadiene, wherein the polybutadiene comprises 1,2-butene structure unit, 2,3-(cis) butene structure unit and 2,3-(trans) butene structure unit, wherein the amount of the 2,3-(trans) butene structure unit is more than the amount of the 2,3-(cis) butene structure unit. The polyurethane presented in this invention possesses improved abrasion resistance and good surface quality. | 03-07-2013 |
20130059936 | POLYOXYALKYLENE POLYOL, POLYMER-DISPERSED POLYOL, FLEXIBLE POLYURETHANE FOAM AND PRODUCTION PROCESS THEREOF - To provide a process for producing a polyoxyalkylene polyol having a high primary hydroxylation rate of the terminal hydroxyl groups, in spite of a low degree of total unsaturation and a low content of oxyethylene groups. | 03-07-2013 |
20130079431 | Single layer flexible foam including polyurethane gel - A single layer flexible foam includes the reaction product of an (A) isocyanate component and a (B) isocyanate-reactive component. The isocyanate component and the isocyanate-reactive component react in the presence of a (C) polyurethane gel. The polyurethane gel has a viscosity of from about 3,000 to about 12,000 cps at 25° C. and includes the reaction product of a polyol component and a second isocyanate component which react at an isocyanate index of from about 10 to about 70. The flexible foam also includes a plurality of agglomerated gel substrates that are formed from the polyurethane gel and that are dispersed in the flexible foam. The flexible foam is formed using a method including the steps of providing (A), providing (B), providing (C), and combining (C) with (A) and (B), such that (A) and (B) react in the presence of (C) to form the flexible foam. | 03-28-2013 |
20130085197 | DISPERSION COMPRISING A LIQUID PHASE AND A SOLID PHASE - Dispersions comprise a liquid phase and a solid phase. | 04-04-2013 |
20130158144 | SPRAYABLE WASTE RUBBER-BASED COATING - Surface coating composition, method and apparatus for coating a surface. The surface coating composition comprises a recycled rubber product, one or more binding agent and optionally one or more additional agent. | 06-20-2013 |
20140011898 | THERMOPLASTIC ELASTOMERS WITH SILKY FEEL - A thermoplastic elastomer compound is blended from styrenic block copolymer, thermoplastic vulcanizate, thermoplastic polyurethane, a compatibilizer, and a masterbatch containing silicone, which is added to provide a qualitative silky feel on surfaces of plastic articles made from the compound. | 01-09-2014 |
20140031445 | HEAT INSULATING MATERIAL - A method of manufacturing a resin foam includes dissolving a blowing agent into a mixture of a resin C and a resin D having a difference of solubility with respect to the blowing agent in an amount of more than 0% and less than 5%; subjecting the mixture to heat-melting for extrusion; and evaporating the blowing agent such that the resin foam has a porosity (X) of not less than 80%, a cell (L) with a cell diameter of not less than 1 μm and not more than 1000 μm, and a cell (S) with a cell diameter of not less than 0.01 μm and less than 1 μm, in which two peaks are present in cell diameter distribution, one peak thereof being present in not less than 10 μm and not more than 500 μm and the other peak being present in not less than 0.01 μm and less than 1 μm. | 01-30-2014 |
20140039079 | POROUS POLYMER MEMBRANE WITH COVALENT NETWORK STRUCTURE AND PRODUCTION METHOD THEREOF - The present disclosure provides a porous polymer membrane having a covalent network structure and a method for producing the same. The method includes: polymerizing a first monomer having four first functional groups oriented in a tetrahedral arrangement with a second monomer having at least two second functional groups to prepare porous organic framework nanoparticles; mixing the solution of the porous organic framework nanoparticles with a polymer; and applying the mixed solution to a substrate, followed by heating to form a polymer matrix containing the nanoparticles. According to the method, a polymer membrane with excellent chemical stability, heat resistance, durability and permeability can be produced through simple processes. Advantageously, the porous structure of the polymer membrane can be easily modified depending on intended applications of the polymer membrane. | 02-06-2014 |
20140073712 | POLYURETHANES COMPRISING HALOGEN COMPOUNDS - The present invention relates to polyurethanes obtainable via mixing of (a) polyisocyanate, (b) polymeric compounds having groups reactive toward isocyanates, (c) catalyst, (d) aliphatic hydrocarbon having from 2 to 15 carbon atoms and comprising at least one heteroatom selected from the group consisting of oxygen, nitrogen, and sulfur, and comprising at least one bromine and/or chlorine atom, (e) optionally blowing agent, (f) optionally chain extender and or crosslinking agent, and (g) optionally auxiliary and/or additives to give a reaction mixture and allowing the reaction mixture to complete its reaction to give the polyurethane, where the aliphatic hydrocarbon (d) comprises no phosphoric ester, polyphosphate, phosphonic ester, or phosphorous ester. The present invention further relates to a process for producing such polyurethanes, and to their use in the interior of conveyances. | 03-13-2014 |
20140113985 | POLYMER-DISPERSED POLYOL AND PROCESS FOR PRODUCING FLEXIBLE POLYURETHANE FOAM - To provide a process for producing a flexible polyurethane foam having a higher biomass degree than a conventional flexible polyurethane foam and excellent in foam physical properties and its appearance. | 04-24-2014 |
20140171531 | ANTIMICROBIAL BIO POLYURETHANE FOAM AND METHOD FOR MANUFACTURING THE SAME - Disclosed is an antimicrobial bio polyurethane foam and a method for manufacturing thereof, and more specifically, a polyurethane foam which comprises a reaction product of a resin premix comprising the biopolyol in an amount of 5 to 30 wt % based on total weight of the resin premix, and a prepolymer. The antimicrobial bio polyurethane foam is enhanced in an antimicrobial property by maximizing the content of the biopolyol. | 06-19-2014 |
20140249242 | GRAFTING OR CROSSLINKING OF UNSATURATED POLYOLEFINS BY BASE/ISOCYANATE INITIATION - The present invention relates to a novel type of grafting or crosslinking method for (meth)acrylates in which the reaction is initiated by isocyanates and specific bases having an imine structure. Using this novel and specifically applicable method, polymers, particularly polyolefins having double bonds, may be grafted or crosslinked in a suitable reaction procedure. | 09-04-2014 |
20140275306 | ARTICLE WITH CONTROLLED CUSHIONING - Pellets, beads, particles, or other pieces of a thermoplastic elastomer having a maximum size in at least one dimension of 10 mm or less (collectively, “pellets”) are infused with a supercritical fluid in a pressurized container, then rapidly depressurized and heated either by immersion in a heated fluid or with infrared or microwave radiation to foam the pellets The pellets are prepared with at least two different densities. Pellets with different densities, thermoplastic elastomer compositions, or foam response rates are placed in different areas of a mold. The mold is filled with pellets, then the pellets are molded into a part. The part has areas of different density as a result of the placement of pellets of different density. | 09-18-2014 |
20140275307 | POLYURETHANE POWDER BLEND WITH REDISPERSIBLE POLYMER POWDER FOR CEMENT COMPOSITIONS - Powdered polyurethane flexible foams, preferably powdered recycled polyurethane flexible foams are used with a redispersible polymer powder (RDP), preferably as a preblended additive, in hydraulic binders or cementitious compositions to improve performance of cementitious compositions or mortar, in applications such as cement based tile adhesives (CBTA), or external thermal insulating composite systems (ETICS). The use of the powdered polyurethane flexible foam as a partial replacement for an RDP unexpectedly provides an increase in wet mortar density while maintaining excellent workability and quick open time, quicker setting times, improved impact resistance, and increased adhesion after water immersion. | 09-18-2014 |
20140288202 | USE OF POLYURETHANE POWDER AS INNER ADDITIVE OF REDISPERSIBLE POLYMER POWDER - A powdered polyurethane, preferably a powdered recycled polyurethane rigid foam is co-dried with a water insoluble film-forming polymer to obtain a redispersible polymer powder composite for use in hydraulic binders or cementitious compositions to improve performance of cementitious compositions or mortar, in applications such as cement based the adhesives (CBTA), or external thermal insulating composite systems (ETICS). | 09-25-2014 |
20140371338 | SHELF LIFE OF POLYOL BLENDS CONTAINING HALOGENATED OLEFINS BY ENCAPSULATION OF ACTIVE COMPONENTS - The shelf life of polyurethane polyol pre-blends containing halogenated olefins is extended by encapsulation of active components such as catalysts and/or surfactants. The active component is encapsulated in a crystallizable or thermoplastic polymer. The encapsulated particles have a size of 2,800 microns or less and the active components are not significantly leaked out, particularly in the presence of halogenated olefins. | 12-18-2014 |
20150038605 | LOW DENSITY FOAM, MIDSOLE, FOOTWEAR, AND METHODS FOR MAKING LOW DENSITY FOAM - Foamed thermoplastic elastomeric polyurethane and ethylene-vinyl acetate copolymer articles are made with a combination of a supercritical fluid and a non-supercritical fluid blowing agent. | 02-05-2015 |
20150038606 | LOW DENSITY FOAMED ARTICLES AND METHODS FOR MAKING - Foamed thermoplastic elastomeric polyurethane and ethylene-vinyl acetate copolymer articles are made with from about 0.1 to about 4 weight percent of supercritical fluid nitrogen based on polymer weight and from about 0.1 to about 5 weight percent of a supercritical fluid carbon dioxide based on polymer weight, with the supercritical fluid nitrogen and the supercritical fluid carbon dioxide being separately added to the molten polymer. | 02-05-2015 |
20150038607 | METHOD AND THERMOPLASTIC FOAMED ARTICLE - A method for making a low density foamed article includes placing a desired amount of thermoplastic polyurethane foam beads in a cavity of an injection mold and closing the mold; combining in an extruder connected to the mold a molten polymer selected from the group consisting of thermoplastic polyurethane elastomers and thermoplastic ethylene-vinyl acetate copolymers with both a physical or chemical blowing agent other than a supercritical fluid present in an amount up to about 15 wt % based on molten polymer weight and a supercritical fluid that is at least one of about 0.1 to about 5 weight percent of supercritical CO | 02-05-2015 |
20150038608 | MANUFACTURING METHOD OF POROUS POLYMER FILM USING VANADIUM OXIDE NANOWIRE, AND POROUS POLYMER FILM PREPARED THEREFROM - This patent is provided a method for producing a porous polymer film using vanadium oxide nanowires, and a porous polymer film obtained from the method. The method allows control of a uniform pore size and density through a simple process including the steps of: adding an ion exchanger to deionized water to perform acidification and adding a vanadate compound thereto to grow vanadium oxide nanowires by a sol-gel process; mixing the resultant solution of grown nanowires with a polymer solution to provide a mixed solution of nanowires; pouring the mixed solution of nanowires to a mold, followed by drying and curing, to form a film; and etching the resultant film with an etching solution to remove the vanadium oxide nanowires. | 02-05-2015 |
20160200855 | PIPA Polyol Based Viscoelastic Foams | 07-14-2016 |