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| Number | Title | Issue Date |
| 7078443 | Viscoelastic foam layer and composition A viscoelastic foam is provided having an amine-based polyol system to impart strength, recoverability and endurance to the foam, and an appropriately selected trifunctional non-amine-based polyol system to provide flexibility to the foam. The combination of amine-b... | 07/18/2006 |
| 7011776 | Method and apparatus for preparing microspheres An improved method for the preparation of a microsphere from an emulsion wherein an organic phase containing an organic solvent having a boiling point lower than that of water and a hardly-water-soluble polymer is emulsified in an aqueous phase by an in-water drying... | 03/14/2006 |
| 6866803 | Mold for use in slip casting method, and method of manufacturing open porous body for use in mold A slip casting mold includes a water absorption layer having self water absorption capability and substantial water resistance. With the water saturation percentage of the water absorption layer being controlled, a slurry layer is deposited in the slip casting mold ... | 03/15/2005 |
| 6706776 | Syntactic foams with improved water resistance, long pot life and short demolding times This invention relates to syntactic foams comprising the reaction product of a liquid diphenylmethane diisocyanate component, with an isocyanate-reactive component, a filler having a density of less than 1 g/cm 3, and at least one organo-metallic catalyst. This inve... | 03/16/2004 |
| 6653361 | Flame retardant polyurethane composition and method of manufacture thereof A polyurethane foam or elastomer comprises an organic polyisocyanate component, an active hydrogen-containing component reactive with the polyisocyanate component, wherein the viscosity of this component is less than about 500 cP at room temperature, a ca... | 11/25/2003 |
| 6586486 | Preparation of low-density hydrophilic flexible polyurethane foams Low-density hydrophilic flexible polyurethane foams are prepared by reacting organic and/or modified organic polyisocyanates (a) with a polyetherol mixture (b) and, if required, further compounds (c) having hydrogen atoms reactive toward isocyanates, in t... | 07/01/2003 |
| 6242555 | Light-stable elastomeric polyurethane mouldings and process for the production thereof A process for the production of micro-cellular or non-cellular, light-stable elastomeric, flexible or semi-flexible polyurethane moldings which are especially suited for window encapsulation applications from a reaction mixture by the reaction injection m... | 06/05/2001 |
| 6194475 | Use of metal salts of ricinoleic acid in producing polyurethane The invention relates to the use of metal salts of ricinoleic acid or solutions thereof in water or in organic solvents in producing polyurethane foams.... | 02/27/2001 |
| 6140381 | Delayed action catalysts for carpet backing and air frothed foam This invention relates to a process for the production of a polyurethane backing and air frothed foam on a substrate comprising the steps of a) mixing a polyisocyanate and a polyol blend in the presence of a catalyst to form a reaction mixture, b) applyin... | 10/31/2000 |
| 5840779 | Catalysts which stabilize hydrohalocarbon blowing agent in polyurethane foam formulations The present invention relates to foam compositions which are expanded with hydrohalocarbon blowing agents in the presence of catalysts which result in a decreased amount of decomposition of the hydrohalocarbon blowing agents to haloalkenes during the poly... | 11/24/1998 |
| 5798533 | Polyol compositions having good flow and water blown rigid polyurethane foams made thereby having good dimensional stability A polyol composition is provided which when reacted with and organic isocyanate, has good flow characteristics and makes an all water blown rigid polyurethane foam having good dimensional stability at low core densities of 1.1 pcf to 2.0 pcf. The polyol c... | 08/25/1998 |
| 5739173 | Preparation of flame-resistant soft polyurethane foams of reduced smoke density, and melamine/expandable graphite/polyether-polyol dispersions for this purpose A process for the preparation of flame-resistant soft polyurethane foams which produce less smoke in the event of fire involves reacting a) an organic polyisocyanate and/or a modified organic polyisocyanate with b) a high-molecular-weight compound containing at lea... | 04/14/1998 |
| 5710230 | Cycloaliphatic diisocyanate based rim elastomers This invention relates to a process for the production of polyurethane/urea moldings from a reaction injection molding process by processing the reaction mixture consisting of a diisocyanate and an isocyanate-reactive component via the one-shot process at... | 01/20/1998 |
| 5688834 | Catalysts which stabilize hydrohalocarbon blowing agent in polyurethane foam formulations The present invention relates to foam compositions which are expanded with hydrohalocarbon blowing agents in the presence of catalysts which result in a decreased amount of decomposition of the hydrohalocarbon blowing agents to haloalkenes during the poly... | 11/18/1997 |
| 5656677 | Method for preparing and applying a sprayable, light stable polyurethane A method for preparing a light stable polyurethane, sprayable by means of a spray pistol, wherein use is made of an active hydrogen containing compound, wherein the functional groups consist for at least 50% of an active CH2 OH, NH and/or NH | 08/12/1997 |
| 5599851 | Superfine microelemental biochemical mixture and foamed plastic products thereof This invention relates to a kind of superfine microelemental biochemical mixture and its foamed plastic products. The mixture contains titanium oxide, zirconia, silica, yttrium oxide, cerium oxide, tin dioxide, silver phosphate and other microelements, an... | 02/04/1997 |
| 5585412 | Process for preparing flexible CFC-free polyurethane foams using an encapsulated blowing agent The present invention relates to a process for producing a flexible polyurethane foam by reacting, at a reaction temperature within a temperature range of between about 70° F. and about 150° F., a reaction mixture comprised of a polyol, an organic isocy... | 12/17/1996 |
| 5514723 | Water-blown integral skin polyurethane foams and catalysts useful therein The present invention is directed to an integral skin foam prepared by reacting an isocyanate, an isocyanate reactive component and water as the only blowing agent and to a catalyst useful therein. The catalyst broadly comprises a diorganotin sulfide, a t... | 05/07/1996 |
| 5502150 | Linear HDI urethane prepolymers for rim application The present invention is directed to polyurethane moldings produced via the RIM process. These polyurethane moldings have excellent reactivity, demold properties (at a 30s demold), and good elongation and tear strength, and comprise the reaction product o... | 03/26/1996 |
| 5491174 | Process for preparation of polyurethanes utilizing novel catalysts Novel catalyst compositions comprising complexes of tin(IV) salts and amine compounds are used to prepare polyurethanes, polyureas, polycarbodiimides and polyisocyanurates. The complexes, which preferably employ primary amines, allow delay of gelation unt... | 02/13/1996 |
| 5391583 | Flame-retardant poly (polyisocyanate-organic phosphorus) products Flame-retardant poly (polyisocyanate-organic phosphorus) products are produced by mixing and reacting an organic phosphorus containing compound and a polyisocyanate compound in the presence of a polyisocyante catalyst. No other blowing agent is necessary.... | 02/21/1995 |
| 5328938 | On-site generation of polyurethane foam using an HCFC as a sole blowing agent The present invention relates to an improved process for producing, by means of a portable foaming apparatus having a static mixer, a polyurethane foam by reacting a reaction mixture comprised of a polyol, an organic isocyanate, a foaming/frothing agent, ... | 07/12/1994 |
| 5318996 | Rigid insulating polyurethane foams prepared from ternary blowing agent mixtures Polyurethane foams blown with a mixture of water, HCFC-22 or HCFC-141b, and a perfluorinated hydrocarbon having from 3 to 8 carbon atoms yields polyurethane and polyisocyanurate foams having exceptional physical properties, i.e., small and uniform cells, ... | 06/07/1994 |
| 5300532 | Integral skin-foam molded article The present invention relates to integral skin-foam molded articles obtained by reaction-injection molding a polyurethane foam material comprising a polyol component, an isocyanate component, a catalyst, and a blowing agent. Catalysts may be selected from... | 04/05/1994 |
| 5292778 | Polymer-modified polyol dispersions and processes for production and use thereof A polymer-modified polyol dispersion comprises a polyaddition product dispersed in a polyol. The polyaddition product is present in an amount of from about 25 to about 70 percent by weight based on the total weight of the polyaddition product and the poly... | 03/08/1994 |
| 5268393 | Flame-retardant polyurethane foam produced without additional blowing agents Flame-retardant polyurethane foam products are produced by mixing and reacting an organic phosphorus containing compound which will react with a polyisocyanate compound and produce a gaseous compound and a polyisocyanate compound in the presence of a poly... | 12/07/1993 |
| 5264464 | On-site generation of polyurethane foam using an HCFC as a sole blowing agent The present invention relates to an improved process for producing, by means of a portable foaming apparatus having a static mixer, a polyurethane foam by reacting a reaction mixture comprised of a polyol, an organic isocyanate, a foaming/frothing agent, ... | 11/23/1993 |
| 5212209 | Compatibilized internal mold release composition for preparations of foamed and fiber-reinforced polymeric articles Compositions and a method for preparing a molded foamed polymeric article comprising (1) a relatively high molecular weight polyahl and a relatively low molecular weight polyol, in proportions such that the relatively high molecular weight polyahl and the... | 05/18/1993 |
| 5196455 | Self-leveling sealant composition and method relating thereto The present invention relates to a one-part, self-leveling urethane sealant composition for substantially horizontal surfaces, wherein the sealant will flow within a crack, joint or the like and quickly cure to provide an elastomeric seal having a smooth,... | 03/23/1993 |
| 5182034 | Internal mold release compositions Internal mold release compositions for use in preparing molded polymeric products are disclosed which contain (a) a primary or secondary amine, (b) a carboxylic acid or amido carboxylic acid salt of a group II metal or of aluminum, lithium, copper, iron, ... | 01/26/1993 |
| 5182314 | Flexible polyurethane foams and process for producing same A method for producing a flexible polyurethane foam by the reaction of an active-hydrogen-containing component composed of an active hydrogen compound, a blowing agent, and an additive with an organic polyisocyanate compound: said blowing agent being carb... | 01/26/1993 |
| 5159048 | Isocyanate-reactive compositions The invention is concerned with an isocyanate-reactive composition comprising a polymer having a molecular weight of at least 500 containing a plurality of groups of the formula: ##STR1## wherein R1 represents hydrogen or a hydrocarbon rad... | 10/27/1992 |
| 5114980 | Polyurethane integral skin foam of low ozone depletion potential A process for preparing polyurethane integral skin foam with low ozone depletion potential, which comprises mixing 100 pph of a polyether polyol, 5-50 pph of a chain extender, 0.1-2.0 pph of a surfactant, 0.01-0.20 pph of an amine and 0.01-0.20 pph of an ... | 05/19/1992 |
| 5110840 | Flame-retardant polyurethane foam utilizing a phosphorus acid Flame-retardant polyurethane foam is produced by mixing and reacting a polyol, a phosphorus acid and a compound containing two or more isocyanate radicals. The flame-retardant polyurethane foam may be used for cushioning, sound and thermal insulation, coa... | 05/05/1992 |
| 5104909 | Water-absorbent, high capacity polyurethane foams A water absorbent, relatively dimensionally stable foam is formed from a prepolymer prepared from a polyoxyethylene containing diol, a crosslinking agent and a polyisocyanate. The preferred polyisocyanate is methylene bis(cyclohexyl isocyanate). The foam ... | 04/14/1992 |
| 5075343 | Flame-retardant polyurethane foam utilizing boric acid Flame retardant polyurethane foams are produced by mixing and reacting a polyol, a low molecular weight compound with 1 or more active hydrogen, an organic polyisocyanate and an acidic boron compound in the presence of an organo-metal urethane catalyst. T... | 12/24/1991 |
| 5039711 | Production of flame-retardant polyol-oxidated silicon-acidic boron emulsion Stable flame-retardant polyol-oxidated silicon-acidic boron emulsions are produced by mixing and reacting a liquid organic polyol, and oxidated silicon compound and an acidic boron compound. This flame-retardant emulsion is useful in the production of fla... | 08/13/1991 |
| 5019602 | Polyurethane foams, compositions to prepare same and process to prepare same Polyurethane foams, varying in nature from soft to hard, tough skin and a process for their preparation comprising reacting approximately equal volumes of substantially liquid mixtures from a two part dispensing system, Part A comprising a substantially l... | 05/28/1991 |
| 5011647 | Internal mold release compositions Active hydrogen-containing compositions having internal mold release components are used in a process in preparing molded polymeric products. In the process, the active hydrogen-containing composition contains (a) a primary or secondary amine, (b) a carbo... | 04/30/1991 |
| 5008033 | Internal mold release compositions Active hydrogen-containing compositions having internal mold release components for use in preparing molded polymeric products are disclosed which contain (a) a primary or secondary amine, (b) a carboxylic acid or amido carboxylic acid salt of a group II ... | 04/16/1991 |
