| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 521083000 | Ingredient is asphaltic, bituminous, or water settable inorganic material, e.g., cement, plaster of Paris, etc. | 19 |
| 20090298959 | Polyurethane Resin Moulding For Vehicle Interior Part And Method Of Manufacturing The Same - A method of manufacturing a polyurethane resin moulding for a vehicle interior part, includes: adding at least one of a polyol mixture and a polyisocyanate compound to at least one of microencapsulated paraffin waxes and shirasu balloons, followed by polymerizing the polyol mixture and the polyisocyanate compound. The polyol mixture contains a polyol, a catalyst, a chain extender and an auxiliary agent. A melting point of the microencapsulated paraffin waxes is 60° C. to 80° C. | 12-03-2009 |
| 20090312445 | Foamed Cement Compositions Comprising Oil-Swellable Particles - Of the many compositions provided herein, an embodiment includes a foamed cement composition comprising a cementitious component, an oil-swellable particle comprising at least one swellable elastomer selected from the group consisting of acrylate butadiene rubber, polyacrylate rubber, isoprene rubber, choloroprene rubber, butyl rubber, brominated butyl rubber, chlorinated butyl rubber, chlorinated polyethylene, neoprene rubber, styrene butadiene block copolymer, sulphonated polyethylene, ethylene acrylate rubber, epichlorohydrin ethylene oxide copolymer, ethylene-propylene rubber, ethylene vinyl acetate copolymer, fluorosilicone rubber, silicone rubber, and combinations thereof, a foaming and stabilizing surfactant, gas, and water. Another embodiment includes a foamed cement composition comprising a cementitious component, an oil-swellable particle comprising a block copolymer of styrene butadiene rubber, a foaming and stabilizing surfactant, and gas. | 12-17-2009 |
| 20090326085 | FOAMED POLYMER-INORGANIC BINDER HYBRID MATERIAL HAVING CONTROLLED DENSITY AND MORPHOLOGY, METHOD FOR ITS PREPARATION AND USES THEREOF - The subject of the present invention is a foamed polymer-inorganic binder hybrid material having controlled density and morphology, in particular a foamed polyurethane-inorganic binder hybrid, a method for the preparation of the same and its uses. | 12-31-2009 |
| 20100010108 | WELL CEMENTING MATERIAL - The present invention relates to a formulation of a high-performance foamed cement material, comprising:
| 01-14-2010 |
| 20100056655 | GYPSUM PRODUCTS UTILIZING A TWO-REPEATING UNIT DISPERSANT AND A METHOD OF MAKING THEM - A gypsum slurry includes water, a hydraulic component including stucco and a polycarboxylate dispersant. The dispersant has two repeating units wherein the first repeating unit is an olefinic unsaturated mono-carboxylic acid repeating unit or an ester or salt, and the second repeating unit is a vinyl or allyl group bound to a polyether by an ether linkage. The slurry can be made into a gypsum panel. | 03-04-2010 |
| 20100331434 | MORTAR FOR CONCRETE HAVING POLYURETHANE FOAM AND METHOD OF THEREOF - Disclosed are a mortar for concrete mainly consisting of urethane foam and a method for manufacturing the same, in which urethane foam and Styrofoam used as insulating materials for household electronic appliances and a pre-cast panel are not discarded, but recycled such that the urethane foam and the Styrofoam are mixed with concrete in the construction of flooring of apartments or an ondol of houses. Low weight structure, superior sound-absorption effect and heat insulation effect can be obtained, and cracks are prevented from being generated in the constructed part. Construction work is simplified, and economical efficiency is enhanced. Collected waste urethane foam and waste Styrofoam are pulverized into a size of 1 to 10 mm using a pulverizer. The pulverized urethane foam and Styrofoam are mixed to each other to form urethane foam. Admixture is added to the urethane foam, and then cement and water are mixed with the urethane foam in a predetermined ratio to form a lightweight insulating urethane foam concrete mortar using a mixer and a truck mixture. The lightweight insulating urethane foam concrete mortar is manufactured and is transported from a mixing area to a construction part such that materials of the concrete is prevented from being separated from each other. The concrete is poured using squeezing equipment and hydraulic transfer equipment and then cured for a predetermined curing time to prevent sudden change in the temperature. | 12-30-2010 |
| 20110054053 | ADDITIVES IN GYPSUM PANELS AND ADJUSTING THEIR PROPORTIONS - A panel is provided that includes stucco, water and a dispersant component having dispersing properties and comprising a comb-branched polymer with polyether side chains, naphthalene sulfonate-formaldehyde condensate or melamine sulfonate-formaldehyde condensate. A polycondensation component is also included in the slurry that includes three repeating units. A method of making the gypsum panel includes combining stucco, water and a first dosage of a first dispersant to form a slurry, the first. A second dosage of a second dispersant is added to the slurry. Properties of the gypsum slurry are tested and it is formed into a product. The product sets and properties of the product are identified. The first dosage or the second dosage is changed based on the properties of the slurry or product. | 03-03-2011 |
| 20110086931 | POLYURETHANES DERIVED FROM HIGHLY REACTIVE REACTANTS AND COAL ASH - Composite materials and methods for their preparation are described herein. The composite materials include a polyurethane made from the reaction of at least one isocyanate and at least one polyol, and coal ash (e.g., fly ash). The composite materials are highly reactive systems such as through the use of highly reactive polyols, highly reactive isocyanates, or both. The coal ash is present in amounts from about 40% to about 90% by weight of the composite material. Also described is a method of preparing a composite material, including mixing at least one isocyanate, at least one polyol, coal ash, and a catalyst. | 04-14-2011 |
| 20120041087 | Dry mixture for manufacturing cellular fibro concrete and method thereof - A dry raw mixture for manufacturing cellular fibro-concrete comprises components preferably in the following ratio: Portland cement 20-75%, mineralogical additives 70-20%, microsilica 2-10%', super-plastifier 0.6-3%, polypropylene fiber 0.08-0.15%, pore former 0.002-0.65%, and modifying ceolite additive 2-10%. The mineralogical additives can be represented by: fly ashes from coal combustion, ashes and slag, silica sand, limestone, and any combination thereof. The pore former can be represented by aluminum powder. The structure of modifying ceolite additive includes tetrahedrons SiO2 and AlO4. The raw mixture is further subjected to -intermingling and grinding in a conventional thin-powder grinder/mechanical activator, -bringing the mixture to a construction site, and -adding water to the mixture, thereby obtaining cellular fibro concrete. The method allows: -obtaining uniform mixtures, accelerating the hardening phase, -reducing costs due to avoiding the use of autoclave, steaming, and thermal curing equipment, -deploying inexpensive equipment for mixing concrete. | 02-16-2012 |
| 20120172468 | EFFECTIVE USE OF MELAMINE SULFONATE CONDENSATE DISPERSANTS IN WALLBOARD CONTAINING FOAM - Effective use of dispersants in wallboard containing foam results from a method where stucco is mixed with a first dispersant and a first quantity of water to form a gypsum slurry. A soap is blended with a second dispersant and a second quantity of water to make a foam. Subsequently, the foam is combined with the slurry. Choice of different first and second dispersants and their relative amounts allows control of the size distribution of the foam bubbles in the slurry and the resulting voids in the gypsum core. Melamine sulfonate condensate and polycarboxylate dispersants are preferred dispersants. | 07-05-2012 |
| 20120172469 | Lightweight foamed fly ash based binders and method - A method of making a lightweight cementitious binder composition with improved compressive strength for products such as cementitious panels is disclosed. The method mixes fly ash, alkali metal salt of citric acid, alkali metal silicate, foaming agent for entraining air, water and in the preferred embodiment a foam stabilizing agent. Compositions which include fly ash selected from the group consisting of class C fly ash, class F fly ash and mixtures thereof, alkali metal salts of citric acid, alkali metal silicates, foaming agents, and preferably a foam stabilizer, such as polyvinyl alcohol, and do not require use of set retarders. Compositions containing class F fly ash can optionally contain Type III Portland cement. | 07-05-2012 |
| 20120202901 | CEMENT COMPOSITIONS COMPRISING PARTICULATE FOAMED ELASTOMERS AND ASSOCIATED METHODS - Methods of subterranean cementing involving cement compositions comprising particulate foamed elastomers and associated methods are provided. In one embodiment, the cement composition comprises a hydraulic cement, a particulate foamed elastomer, and an aqueous fluid. In one embodiment, the particulate foamed elastomer may comprise polyurethane foam. | 08-09-2012 |
| 20120208910 | ELASTIC INORGANIC-ORGANIC HYBRID FOAM - A process for the production of a resilient foam by foaming a mixture, comprising
| 08-16-2012 |
| 20120214887 | Gypsum Wallboard Slurry and Method for Making the Same - A slurry for manufacturing gypsum board is disclosed. The slurry comprises calcined gypsum, water, a foaming agent, and a thickening agent. The thickening agent of the present disclosure acts to improve the cohesiveness of the slurry without adversely affecting the setting time of the slurry, the paper-to-core bond (wet and dry), or the head of the slurry by acting as a defoaming agent or coalescing agent. Examples of suitable thickening agents include cellulose ether and co-polymers containing varying degrees of polyacrylamide and acrylic acid. A gypsum board and method of forming the slurry and the gypsum board are also disclosed. The gypsum board comprises a gypsum layer formed from the slurry. | 08-23-2012 |
| 20120322902 | CEMENTITIOUS FOAM COMPOSITIONS - Lightweight cementitious foams of the invention have excellent dynamic and dimensional stability due to use of foaming system comprising polycarboxylate surfactant foam generating agent, foam stabilizer (e.g., PVOH), and shrinkage reducing admixture to inhibit plastic shrinkage and micro-cracking of cement. The foaming system can be used in conventional cement mortars or concretes as well as with exemplary cementitious slurry systems of the invention, which include an expansive agent, a cross-linking agent for the foam stabilizer. Microfibers can be used in the foam, slurry, or both, to prevent micro-cracking. Cementitious foams can be made without use of autoclave or lightweight aggregates to achieve enhanced compressive strength and thermal insulation properties that compare favorably with conventional foams and insulation materials at comparable densities. | 12-20-2012 |
| 20130046035 | STABLE FOAMED CEMENT SLURRY COMPOSITIONS AND METHODS FOR MAKING AND USING SAME - A foamed cement composition is disclosed for utilization in performing a variety of well cementing operations, and to methods for making and using same. The foamed cement composition basically includes a cement, water sufficient to form a pumpable slurry, a gas sufficient to foam the slurry, a foaming agent and optionally a foam stabilizing agent. | 02-21-2013 |
| 20140073711 | ADDITIVES IN GYPSUM SLURRIES AND ADJUSTING THEIR PROPORTIONS - A gypsum slurry is provided that includes calcium sulfate hemihydrate; water; a dispersant component comprising at least one of the following a comb-branched polymer with polyether side chains, naphthalene sulfonate-formaldehyde condensate or melamine sulfonate-formaldehyde condensate; a foaming agent; and a polycondensation component with three polycondensation repeating units. Also provided is a method for making a gypsum slurry with a foaming agent in which the ratio between the dispersant component and the polycondensation component is adjusted to control for the size of foam bubbles in the gypsum slurry. Gypsum products made from the gypsum slurry are provided and methods for making the products are provided as well. | 03-13-2014 |
| 20150087734 | PREPARATION OF INDUSTRIAL ASPHALT - The present invention relates to a method for preparing an industrial asphalt comprising sparging an oxygen containing gas through an asphalt flux in the presence of 0.25 weight percent to about 12 weight percent of a highly saturated rubbery polymer at a temperature within the range of about 400° F. to about 550° F. for a period of time which is sufficient to increase the softening point of the asphalt flux to a value which is within the range of 185° F. to 250° F. and a penetration value of at least 15 dmm to produce the industrial asphalt. The highly saturated rubbery polymer can be a styrene-ethylene/butylene-styrene block copolymer rubber or a highly saturated styrene-ethylene/propylene-styrene block copolymer rubber. | 03-26-2015 |
| 20180022653 | LIGHTWEIGHT FOAMED CEMENT, CEMENT BOARD, AND METHODS FOR MAKING SAME | 01-25-2018 |
