Abstract: This invention describes a coating composition and method for producing such composition wherein the composition includes an E-caprolactam blocked polyisocyanate including a diisocyanate selected from the group consisting of 1,4-bis (isocyanatomethyl) cyclohexane and 1,3-bis (isocyanatomethyl) cyclohexane; and a film forming hydroxy containing organic polymer.

Abstract: A process for the manufacture of a polyurethane prepolymer adhesive by a catalyst initiated reaction of polyol and isocyanate copolymers is performed under room temperature conditions, and in convenient quantities for application, storage, and transportation purposes. Compounding includes alternatives of catalyst and co-catalyst combinations, and additives, including a reaction inhibitor, plasticizer, delayed reaction catalyst and surfactant.

Abstract: A portion of the tin compounds conventionally employed to cure polymer compositions containing hydroxyl and isocyanate groups can be replaced by salts or chelated coordination complexes of divalent copper, zinc, nickel, iron, cobalt or vanadium without any substantial decrease in cure rate or solvent resistance of the cured coating.

Abstract: A nitroalkane-free inhibitor system for methylchloroform has been formulated which contains dioxane, an alkylene oxide, and 3-butyn-1-ol. The stabilizer amounts to about 4 to 6% by volume of the stabilized methylchloroform composition. The stabilized composition is useful in vapor degreasing applications when it additionally contains an alkyl nitrate.

Abstract: Disclosed is partially hydrolyzed, DMT process residue. Also disclosed is the reaction product of propylene oxide and the partially hydrolyzed, DMT process residue. The reaction product is useful as a polyol reactant in the preparation of urethane foams.

Abstract: A process for producing urethane-modified polyisocyanurate foams in which a poly(oxyalkylene-oxyethylene)polyether polyol is used as a modifying agent having the number of functional groups and the molecular weight in specific ranges with the equivalent ratio of NCO/OH being in a specific range and containing a specific quantity of ethylene oxide. The use of this modifying agent provides urethane-modified polyisocyanurate foams exhibiting excellent fire resistance and adhesion to an object surface.

Abstract: Compositions comprising polyethylene terephthalate and an additive to promote crystallization rate and improve surface appearance selected from the group consisting of monomeric esters of citric acid and epoxidized esters of unsaturated aliphatic carboxylic acids. Compositions comprising polyethylene terephthalate, poly (C.sub.4 -C.sub.6) terephthalate, and a surface appearance and crystallization rate improving additive selected from the group consisting of monomeric esters of citric acid, organic esters of an aromatic carboxylic acid of 7 to 11 carbon atoms containing at least one carboxyl group per aromatic nucleus and an alcohol, oligomeric polyesters, and epoxidized esters of unsaturated aliphatic carboxylic acids.

Abstract: A stable copolymer dispersion is prepared by addition copolymerization of (1) an adduct of an active hydrogen compound, e.g., a polyether polyol, and an active ethylenically unsaturated isocyanate, e. g., 2-isocyanatoethyl methacrylate with (2) ethylenically unsaturated monomers(s), e.g., styrene or mixture thereof with acrylonitrile, while (1) and (2) are dispersed or dissolved in an excess of an active hydrogen polyfunctional compound. The resulting dispersion has a controlled particle size and a viscosity such that it is suitably employed in the production of polyurethane foams.

Abstract: Urethane resins containing, as latent hardeners, the reaction products of an acid anhydride or imide, such as phthalic anhydride, and an aromatic or cycloaliphatic polyamine, said resin systems being stable for long periods when stored at ambient or moderately elevated temperatures while providing on curing for relatively short periods at elevated temperatures, on the order of 100.degree.-150.degree. C., hardened products of good properties.

Abstract: This invention relates to a process for the production of polyurethanes, particularly polyurethane foam moldings having a compact skin and a cellular core, using special tin activators.

Abstract: Stable isocyanurate foams are produced at rapid reaction rates by contacting an organic polyisocyanate with an active hydrogen compound such as a polyether polyol in the presence of an initiator comprising an ortho-sulfonium phenoxide and a carbonylate salt such as sodium acetate.

Abstract: Hot-melt electrical coating compositions comprise high solids content polyesterimides prepared to an acid number of less than 6-7 in the presence of a monoether or monoester of a glycol or polyglycol and reacted hot with a blocked polyisocyanate. Such virtually solventless compositions provide insulation coatings on electrical conductors which have superior flexibility, especially after aging.

Abstract: A composition for polyurethane adhesives comprising (1) a triisocyanate of the formula: ##STR1## wherein ##STR2## a modified product of said triisocyanate or an adduct of said triisocyanate having terminal isocyanate groups and (2) an active hydrogen compound exhibits excellent adhesion, especially between polyethylene terephthalates, polyolefins and metals, heat resistance and weatherability, and has low toxicity and can be solventless or light solid.

Abstract: There is provided a process for preparing a microcellular foam with improved green strength properties comprising the step of reacting an organic polyisocyanate with polyalkylene ether polyol and from 1 to about 35 parts (by weight, per hundred parts of said polyol) of a chain extender in the presence of from about 0.1 to about 10.0 parts (by weight, per hundred parts of said polyol) of a compound selected from the group consisting of: ##STR1## wherein: (a) said polyol has an average functionality of from about 2 to about 8 and an average equivalent weight of from about 1000 to about 2700, and from about 0.8 to about 1.2 equivalents of said polyol are reacted per equivalent of isocyanate;(b) R is a divalent alkylene radical containing from about 1 to about 4 carbon atoms; and(c) R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are independently selected from the group consisting of hydroxyalkyl containing from about 1 to about 4 carbon atoms and from about 1 to about 2 hydroxyl groups.

Abstract: This invention is a method of manufacturing polyester fibers with good adhesion to rubber, characterized in that in the process of spinning polyester fiber, a spinning oil (finish composition) containing an epoxy compound and the compound expressed by the general formula ##STR1## (where R is hydrogen, an alkyl group, a cycloalkyl group, or an aryl group; M is an alkali metal or an alkaline earth metal; n is an integer from 0 to 10; and m is 1 when M is an alkali metal and m is 2 when M is an alkaline earth metal) is added to the polyester fiber which is then heat treated.

Abstract: A polyurethane corresponding to the formula: ##STR1## wherein Q is a divalent, mononuclear or dinuclear aromatic radial which is unsubstituted or is substituted by lower alkyl groups and which can contain, as a linking member, a lower alkylene group,X is one of the groups --O--Ph--Z--Ph--O-- and --OOC--(CH.sub.2).sub.y --COO--,Ph being an optionally substituted phenylene group,Z being an alkylene group having 1-4 carbon atoms and y being a number from 2 to 12,R is a hydrogen atom or a methyl group,Y is an alkylene radical having 2-6 carbon atoms,m is an integer from 4 to 50n is an integer from 1 to 6 ando is an integer from 4 to 20having the properties of thermoplasts and being hardenable to give elastic products. It is suitable for use as a hardenable constituent of photopolymerizable materials.

Abstract: The present invention is directed to a process for sealing fissures and leaks in construction by pressing sealing agents comprising liquid compounds having free isocyanate groups, and optionally auxiliary aids and additives, into the constructions to be sealed, characterized in that sealing agents which are substantially free of solvent are used which contain as compounds having free isocyanate groups reaction products of polyhydroxy polyethers with polyisocyanate mixtures of the diphenyl methane series having at least about 20% by weight, based on the weight of the polyisocyanate component, of 2,4'-diisocyanato diphenyl methane, in an NCO/OH equivalent ratio of from about 2:1 to 15:1. The present invention is also directed to the novel sealing agents used in this process.

Abstract: A flexible, hydrophobic polyurethane foam is produced by mixing together an aqueous phase which can optionally contain reinforcing fibers and surfactants and a resin phase comprising a prepolymer derived from a poly (oxy C.sub.2-4 alkylene) diol having a molecular weight of at least about 1100, an MDI containing isocyanate product having a functionality greater than 2.0 made of a mixture of MDI and isocyanate containing derivatives of MDI, and a monomeric polyol crosslinking agent having 3 or 4 hydroxyl equivalents per mole. The preferred polyol is trimethylolpropane and the diol is an equimolar mixture of Carbowax 1000 and Carbowax 1450. The diol and the polyol, such as trimethylolpropane, are present in a mole ratio in the range of 4:1 to 8:1 while the ratio of the isocyanate equivalents to the total hydroxyl equivalents is in the range of 2.5:1 to 3.5:1. The isocyanate containing product comprises less than 50% by weight of the prepolymer and Isonate 143L is the preferred isocyanate product.

Abstract: Reaction products of an organic polyisocyanate with a reactive diamine such as bis(4-aminocyclohexyl)methane and isophorone diamine, prepared at a temperature of between 135.degree. C. and 200.degree. C., are used to prepare polyurethanes useful for comfort cushioning applications such as automotive seating, furniture, mattresses, and large automotive body panels.

Abstract: A novel polyhydroxy oligomer crosslinkable with polyisocyanates to form a coating composition adapted for use as an automotive topcoat which upon curing forms a hard, glossy, durable coating with outstanding durability and excellent resistance to solvents and water. The coating composition comprises:(A) a polyhydroxy oligomer having a number average (M.sub.n) molecular weight of between about 250-2000 and being the reaction product of:(i) an ester having pendant hydroxyl and carboxyl functionality and being made by reacting(a) a C.sub.3 -C.sub.10 aliphatic branched diol, and(b) an alkyl hexahydrophthalic anhydride; and(ii) a C.sub.2 -C.sub.10 monomer, having reactive functionality capable of esterifying said carboxyl functionality of said ester;(B) a polyisocyanate crosslinking agent having two or more reactive isocyanate groups per molecule; and(C) 0-50 weight percent based on the total weight of (A), (B) and (C) of a hydroxy functional additive having a number average weight (M.sub.