Abstract: A polymer composition comprising at least one thermoplastic polyurethane (TPU) with a Vicat softening point (in accordance with ISO 306/A50) below 80° C. and from 5 to 95% by weight of at least one polymer obtainable via free-radical polymerization, based on the entirety of TPU and of the polymer obtainable via free-radical polymerization, where the polymer obtainable via free-radical polymerization has been bonded in the form of comb polymer, graft polymer, or copolymer to the TPU, is particularly suitable for injection-molding applications.

Abstract: One aspect of the present invention relates to novel compounds that can be used to prepare radiolabeled compounds in an effective manner. A second aspect of the present invention relates to a method of synthesizing radiolabeled compounds.

Abstract: A viscoelastic foam system is provided having an amine-based polyoxypropylene extended polyol to impart strength, recoverability and endurance to the foam, and an appropriately selected non-amine-based polyol to provide flexibility to the foam. The combination of amine-based propylene oxide extended polyol and non-amine-based polyol provides a viscoelastic semi-rigid foam with excellent impact and recovery properties, recovering to substantially 100% of its initial volume and shape following an impact, yet with sufficient rigidity and stiffness so that it is effective at absorbing multiple impacts. A method of making the above viscoelastic foam is also provided.

Abstract: Polyurethane polymers are made from a reaction mixture that contains a polyisocyanate, a hydroxylmethyl-containing fatty acid or ester, and another polyol, polyamine or aminoalcohol. The carboxylic acid or ester group on the hydroxymethyl-containing fatty acid or ester are capable of engaging in a variety of reactions with the polyisocyanate and/or amine or hydroxyl groups present in the reaction mixture. This allows for good quality, high molecular weight polymers to be produced even though the hydroxymethyl-containing fatty acid or ester tends to be a low functionality material.

Abstract: A catalyst system which is suitable for catalyzing the production of polyurethane systems is provided. The catalyst system contains a metal salt of a carboxylic acid to whose carbonyl carbon a hydrogen atom or a hydrocarbon radical is bound, with the proviso that the carboxylic acid does not have exclusively a single ethyl or n-propyl branch in the 2 position.

Abstract: One aspect of the present invention relates to novel compounds that can be used to prepare radiolabeled compounds in an effective manner. A second aspect of the present invention relates to a method of synthesizing radiolabeled compounds.

Abstract: Methods of forming olyurethane foams that are the reaction product of at least one polyisocyanate and a polyol composition are provided. The polyol composition includes at least one natural oil based polyol and at least one poly(propylene oxide) polyol and is desirably free of non-natural oil based polyols made from alkylene oxide units, other than propylene oxide units. The natural oil based polyol is present in a quantity sufficient to increase the processing window for the foam relative to a foam made using the same process and the same components, absent the natural oil based polyol. As a result, the present foams can provide very open-cellular structures with the superior performance properties of a poly(propylene oxide) polyol-based foam.

Abstract: To provide a method for producing a rigid polyurethane foam, whereby it is possible to reduce the density without causing deterioration in dimensional stability, and a rigid polyurethane foam. A method for producing a rigid polyurethane foam, which comprises a step of reacting a polyol having a hydroxyl value of from 200 to 800 mgKOH/g with a polyisocyanate compound in the presence of an amino-modified silicone, a catalyst, a blowing agent and a surfactant.

Abstract: To provide a process for producing a flexible polyurethane foam, which comprises reacting a polyol compound and a polyisocyanate compound in an open system substantially without using a silicone foam stabilizer. A process for producing a flexible polyurethane foam, which comprises reacting a polyol composition (I) containing at least a polyol compound and containing at least one of a polyol compound (A) and a monool compound (X) obtained by ring-opening polymerization of an alkylene oxide with an initiator by using a double metal cyanide complex catalyst, and a polyisocyanate composition (II) in the presence of a urethane-forming catalyst made of a metal catalyst and an amine catalyst, and a blowing agent, in an open system substantially without using a silicone foam stabilizer.

Abstract: The present invention relates to a novel method for manufacturing a cellular elastomeric polyurethane foam ball. The product polyurethane foam ball may be used as a core for a tennis ball which meets ITF specifications for tennis balls, including weight, diameter, bound, forward deformation and return deformation.

Abstract: The embodiments of the present invention provide for viscoelastic polyurethane foams made in the presence of a bismuth comprising catalyst. The viscoelastic polyurethane foam may be the reaction product of a reaction mixture including at least one polyol and at least one isocyanate, wherein the at least one polyol and the at least one isocyanate are reacted in the presence of at least one bismuth comprising catalyst, and wherein the viscoelastic polyurethane foam has a density of less than 100 kg/m3 and a resilience of less than about 25%.

Abstract: A polyurethane foam composition comprising at least: at least one polyether polyol having an average molecular weight from 100-20,000; an aromatic polyisocyanate; a tackifying resin; a surfactant; a blowing agent, and a catalyst. A method for preparation of a polyurethane foam composition useful in shock absorption, is also disclosed.

Abstract: The invention relates generally to protein-containing polyurethane foams, methods and compositions for making the polyurethane foams, and articles comprising the polyurethane foams.

Abstract: Process for preparing a polyol comprising particulate material in dispersed form by reacting an MDI-based polyisocyanate and a polyol having an equivalent weight of up to 400 in a relative amount such that the number of NCO-groups is 70-100% of the number of OH-groups in said polyol having an equivalent weight of up to 400, the reaction being carried out in a polyol having an equivalent weight of 500 or more. The polyols are claimed as well.

Abstract: An object is to provide an electrolyte membrane that maintains excellent cell characteristics for a long time under high temperature and low water retention, as this is the most important point in fuel cells. A process for producing a polymer electrolyte membrane for fuel cells is provided, which process comprises in sequence: forming graft molecular chains by graft-polymerization of a vinyl silane coupling agent on a polymer film substrate that has phenyl groups capable of holding sulfonic acid groups; introducing sulfonic acid groups into phenyl groups contained in the graft molecular chains; and hydrolyzing and condensing alkoxy groups contained in the graft molecular chains so that a silane crosslinked structure is introduced between the graft molecular chains. A polymer electrolyte membrane produced by the process is also provided.

Abstract: The invention provides polyurethane and polyisocyanurate foams and methods for the preparation thereof. More particularly, the invention relates to open-celled, polyurethane and polyisocyanurate foams and methods for their preparation. The foams are characterized by a fine uniform cell structure and little or no foam collapse. The foams are produced with a polyol premix composition which comprises a combination of a hydrohaloolefin blowing agent, a polyol, a surfactant component which comprises a non-silicone surfactant and is substantially absent of a silicone surfactant, and a tertiary amine catalyst.

Abstract: 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-based and non amine-based polyols provides a viscoelastic semi-rigid foam with excellent impact and recovery properties, recovering to substantially 100% of its initial volume and shape following an impact, yet with high rigidity and stiffness so that it is effective at absorbing high as well as low-energy impacts. A method of making the above viscoelastic foam is also provided. In a preferred embodiment, the foam is made using an allophanate-modified MDI prepolymer in order to provide the isocyanate in liquid form at standard temperature and pressure in order to simplify the production of the invented viscoelastic foams.

Abstract: 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 mainly under capillary attractive forces of the slip casting mold. The water absorption layer comprises an open porous body which is manufactured by stirring a mixture of an epoxy compound having at least one epoxy ring in one molecule, a hardener for reacting with the epoxy compound to harden the epoxy compound, a filler for developing self water absorption capability and mold releasability, and water into an O/W-type emulsion slurry, and casting the emulsion slurry into a mold impermeable to water, hardening the emulsion slurry in the mold while containing water.

Abstract: 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 invention also relates to the use of these syntactic foams for insulating pipes.

Abstract: 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 catalyst component, a surfactant, and a flame retarding composition. The components may be low VOC. A preferred flame retarding composition comprises an antimony-based compound, a halogenated, active hydrogen-containing component reactive with the polyisocyanate component, and a halogenated flame-retarding agent. Such polyurethanes are useful as gaskets, seals, padding, in automotive applications, and the like.

Abstract: 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 the presence of water and/or other blowing agents (d), catalysts (e) and, if required, further assistants and additives (f), by a process in which the polyetherol mixture (b) consists of b1) at least one difunctional or polyfunctional polyetherol based on propylene oxide and/or butylene oxide and ethylene oxide, having an ethylene oxide content of more than 40% by weight, based on the total amount of alkylene oxide used, an OH number of from 20 to 120 mg KOH/g and a proportion of primary OH groups of more than 20% and b2) at least one difunctional or polyfunctional polyetherol based on propylene oxide and/or butylene oxide and, if required, ethylene oxide, the ethylene oxide content being not more than 40% by weight, and having an OH number of more than 25 m

Abstract: 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 molding process, wherein: A) an isocyanate component containing an isophorone diisocyanate (IPDI) trimer/monomer mixture having an NCO content of from 24.

Abstract: 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.

Abstract: 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) applying the reaction mixture to a substrate, and c) curing the reaction mixture to form a polyurethane backing an/or an air frothed foam on the substrate. Suitable catalyst compositions for the present invention include those corresponding to the formula: ##STR1## wherein: each R: independently represents a linear or branched C.sub.1 to C.sub.24 (preferably from 5 to 16 carbon atoms and most preferably from 8 to 12 carbon atoms) alkyl group, or a cyclic group containing from 4 to 24 carbon atoms (preferably from 5 to 16 carbon atoms and most preferably from 8 to 12 carbon atoms).

Abstract: 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 polymerization. Thus, the present invention provides compositions comprising polyisocyanate, polyol, hydrohalocarbon blowing agent, surfactant, and at least one catalyst for polymerization of the polyisocyanate and polyol wherein the catalyst is less volatile than N,N-dimethylcyclohexylamine or the catalyst is a tertiary amine having at least one isocyanate-reactive functionality selected from the group consisting of --OH and --NH-- and the catalyst results in a decreased amount of decomposition of the hydrohalocarbon blowing agents to haloalkenes during polymerization of the polyisocyanate and the polyol and especially during use of the foam samples at a temperature of at least about 54.degree. C.

Abstract: 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 composition has a polyol component which must have present a polyoxyalkylene polyether polyol having an equivalent weight of 130 or less, an average functionality of 3.1 or greater, and a hydroxyl number of 400 or more, a polyoxyalkylene polyether polyol having an average functionality from 1.5 to 3.1 and a viscosity of less than 800 cP at 25.degree. C., and a polyoxyalkylene polyether polyol having an average functionality of greater than 3.1 and an equivalent weight of greater than 130. The polyol composition also has water as the blowing agent, and further contains a blow catalyst, a delayed action gel catalyst, and preferably a cure catalyst and a surfactant.

Abstract: An improved control valve for use in a mixing valve has a valve mount, a spindle assembly and a water restraining plate having two outlets. The spindle assembly has a spindle rod and a two staged valve body having a chamber at the lower portion thereof. In the chamber are a plurality of cylindrical posts, including four long posts and other short posts that are arranged in order. The cylindrical posts are used to reduce the noise of turbulent flow passing through the valve body and the four long posts support the water restraining plate in place and stop a spring biased sealing pad from dropping into chamber via the outlets. Thus, the spindle rod of the spindle assembly can be rotated more smoothly and the noise produced in operation can be minimized.

Abstract: A process for the preparation of flame-resistant soft polyurethane foams which produce less smoke in the event of fire involves reactinga) an organic polyisocyanate and/or a modified organic polyisocyanate withb) a high-molecular-weight compound containing at least two reactive hydrogen atoms and, if desired,c) a chain extender and/or crosslinking agent, in the presence ofd) a mixture of flameproofing agents which contains:di) melaminedii) expandable graphite and, if desired,diii) at least one further flameproofing agent, preferably a modified or unmodified ammonium polyphosphate,e) a blowing agent,f) a catalyst and, if desired,g) assistants and/or additives, and melamine/expandable graphite/polyether-polyol dispersions which are suitable for this purpose.

Abstract: 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 an isocyanate index of about 80 to 130. The diisocyanate is an unmodified cycloaliphatic diisocyanate. The isocyanate-reactive component consists of 1) at least one polyol having functional groups which are hydroxyl groups, amine groups, or mixtures of hydroxyl groups and amine groups such that the equivalent ratio of hydroxyl groups to amine groups is from 0:1 to 1:1, and 2) at least one chain extender which is selected from diols, triols, primary aliphatic amines, secondary aliphatic amines, aminoalcohols and mixtures thereof. The equivalent ratio of hydroxyl groups to amine groups in the chain extender component is from 1:2 to 10:1.

Abstract: 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 polymerization. Thus, the present invention provides compositions comprising polyisocyanate, polyol, hydrohalocarbon blowing agent, surfactant, and at least one catalyst for polymerization of the polyisocyanate and polyol wherein the catalyst is less volatile than N,N-dimethylcyclohexylamine or the catalyst is a tertiary amine having at least one isocyanate-reactive functionality selected from the group consisting of --OH and --NH-- and the catalyst results in a decreased amount of decomposition of the hydrohalocarbon blowing agents to haloalkenes during polymerization of the polyisocyanate and the polyol and especially during use of the foam samples at a temperature of at least about 54.degree. C.

Abstract: 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 CH.sub.2 OH, NH and/or NH.sub.2 group, the functionality of which varies from 2 to 8 and the equivalent weight of which is comprised between 100 and 3500, together with 2 to 300 parts, per 100 parts of said compounds of a chain extender and/or a cross-linker, the functional groups of which are OH groups, at least 50% of which are primary OH groups, the equivalent weight of which is less than 100 and the functionality of which varies from 2 to 6, and with a catalytic system which comprises at least an organic lead, bismuth and/or tin (IV) compound and at least an amine initiator, having a functionality of 2 to 6, an equivalent weight lower than or equal to 200, and at least one aliphatic NH.sub.2 or NH group.

Abstract: 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, and has certain impact on human body's micro-circulation. The plastic products comprise the mixture according to the invention and base materials which conventionally are used in preparation for foamed plastics.

Abstract: 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.degree. F. and about 150.degree. F., a reaction mixture comprised of a polyol, an organic isocyanate, water, an encapsulated blowing agent, and a reaction catalyst, wherein the encapsulated blowing agent comprises a shell and a core, said shell comprising a polymer having a melting point above the initial reaction temperature, and said core comprising a gaseous blowing agent or blowing agent precursor for blowing said reaction mixture at said reaction temperature. In another aspect, the present invention relates to a process for cooling a hot polyurethane foam utilizing encapsulated water contained in the foam forming reaction mixture.

Abstract: 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 tertiary amine and a tin compound other than a diorganotin sulfide.

Abstract: 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 of an HDI prepolymer having an NCO content of 5 to 25%, a functionality of less than 2.3, and a monomer content of less than 10%, with an isocyanate-reactive component comprising b1) at least one relatively high molecular weight organic compound containing at least about two isocyanate-reactive hydroxyl groups; b2) at least one relatively low molecular weight organic compound selected from the group consisting of diols, aminoalcohols, and mixtures thereof; and b3) at least one relatively low molecular weight hydroxyl-based crosslinking compound containing no more than one aliphatic amine hydrogen atoms capable of reacting with isocyanate groups; in the presence of at least one catalyst.

Abstract: 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 until they dissociate under certain reaction conditions. The complexes can be prepared neat or in situ in an active hydrogen containing formulation component. The complexes serve to delay gelation of the formulation because they can be prepared to be relatively stable to moisture and will predictably dissociate upon heating, either as a result of the exothermic nature of the reaction being catalyzed or with application of an external heat source. The catalyst compositions are particularly useful for preparation of carpet underlay and in other applications requiring significant delay prior to gelation.

Abstract: 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.The flame-retardant polyurethane foam products may be used for thermal and sound-insulation, for cushioning, for molding useful objects and as a cavity filler.

Abstract: 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, and a reaction catalyst, the improvement comprising employing monochlorodifluoromethane as the sole blowing/frothing agent in said reaction in order to produce a CFC-free essentially closed-cell rigid or semi-rigid polyurethane foam. Also claimed is the foam produced by the above process.

Abstract: 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, low initial K-factor, low aged K-factor, and high tensile strength. The low initial and aged K-factors are most unexpected when it is considered that significant amounts of water are used to blow the foam.

Abstract: 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 tin and amine compounds. Water has been successfully used as a blowing agent.

Abstract: 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 polyol. The dispersion has a viscosity in the range of from about 4,000 to about 50,000 mPa.s, the viscosity remaining substantially the same after production of the dispersion. A process for producing the polymer-modified polyol dispersion is also disclosed together with a process for using the dispersion to produce a polyurethane foam.

Abstract: 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 polyurethane catalyst. No other blowing agent is necessary.The flame-retardant polyurethane foam products may be used for thermal and sound-insulation, for cushioning, for molding useful objects and as a cavity filler.

Abstract: 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, and a reaction catalyst, the improvement comprising employing monochlorodifluoromethane as the sole blowing/frothing agent in said reaction in order to produce a CFC-free essentially closed-cell rigid or semi-rigid polyurethane foam. Also claimed is the foam produced by the above process.

Abstract: 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 relatively low molecular weight polyol are incompatible, (2) a polyisocyanate, (3) a blowing agent, and (4) an internal mold release/compatibilizing agent containing (a) a metal salt of a weak acid, wherein the metal is selected from elements of the Periodic Table of the Elements having Atomic Numbers 3-5, 11-14, 19-34, 37-52, 55-57, and 72-84, and (b) a compound containing at least one amine group, wherein the internal mold release/compatibilizing agent is present in an amount sufficient to provide mold release characteristics to the article and to compatibilize the relatively high molecular weight polyahl and the relatively low molecular weight polyol, are disclosed. In a preferred embodiment the blowing agent is water.

Abstract: 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, substantially horizontal surface. The cured sealant provides a surface and volume cure time superior to many known systems, and once cured, provides an elastomeric seal having a superior void volume and void distribution than many known self-leveling sealant systems.

Abstract: 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, cobalt or nickel, and optionally (c) a carboxylic acid or amido carboxylic acid.

Abstract: 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 carbon dioxide which is generated by the reaction of water with free isocyanate groups, said organic polyisocyanate compound being a mixture of diphenylmethane diisocyanates and polyphenylmethane polyisocyanate, which the mixture contains said diphenylmethane diisocyanate and said polyphenylmethane polyisocyanate in a mixing ratio of not more than 1.0 and 4,4'-MDI in a ratio of not more than 60% by weight based on the whole isocyanate mixture, and said polyphenylmethane polyisocyanate having an average functionality (hereinafter referred to as "f") of not less than 2.9 and containing diphenylmethane diisocyanate in an amount of less than 35% by weight.

Abstract: 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 R.sup.1 represents hydrogen or a hydrocarbon radical;R.sup.2 represents a hydrocarbon radical;R.sup.3 represents an organic radical carrying at least one isocyanate-reactive group, andR.sup.4 represents hydrogen or an optionally substituted hydrocarbon radical. Such compositions are useful for making moulded elastomers and flexible foams.

Abstract: 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 organotin catalyst, 0-3.0 pph of a nucleating agent and 1.0-30 pph of a blowing agent comprising 50 to 100 weight percent of HCFC-123 and 50 to 0 weight percent of HCFC-141b to form a polyol mixture; blending said polyol mixture with isocyanate having an ISO index=0.95 to 1.10 and reacting said blend at a temperature from 0.degree.-70.degree. C. in a mold at a temperature of from 10.degree. to 90.degree. C. for a molding time of 1 to 9 minutes to form a polyurethane integral skin foam, and the product of said process.

Abstract: A composition comprising a polyisocyanate, a polyol, a hydrofluorocarbon blowing agent, optionally water, a surfactant, and at least one catalyst for the reaction of the polyisocyanate with the polyol and/or the reaction of the polyisocyanate with water, the catalyst being selected from the group consisting of triethylenediamine; N-2-hydroxy-propyltriethylenediamine ammonium salt; N-cetyl-N,N-dimethylamine; N,N-diethylethanamine; N,N-dimethylaminoethylmorpholine; bis(3-dimethylaminopropyl)-N,N-dimethylpropanediamine; N-cyclohexyl-N-methylcyclohexylamine; 1,3,5-tris(3-(dimethylamino)propyl)hexahydro-s-triazine; bis(dimethylaminopropyl)methylamine; dibutyltin dilaurylmercaptide; dibutyltin diisooctylmaleate; dibutyltin bis(2-ethylhexylmercaptoacetate); stannous octoate, 1,2-dimethylimidizole, bis-(dimethylaminoethyl)ether; bis(3-dimethylaminopropyl)-N,N-dimethylpropanediamine and bis(N,N-dimethylaminoethyl)-ether and resulting in a decreased amount of decomposition of the hydrofluorocarbon blowing agent to fluo