Abstract: The present invention is directed to a process for the production of a flexible polyurethane foam comprising reacting(a) an organic polyisocyanate, and(b) a coupled polyol which consists essentially of the reaction product of an organic polyisocyanate and an organic compound having a hydroxy functionality of at least 2 and a primary hydroxy group content of at least 30%, the ratio of hydroxyl groups in said organic compound to isocyanate groups being greater than 1,(c) in the presence of(i) a blowing agent,(ii) a catalyst, and(iii) a foam stabilizer, said foam stabilizer being capable of producing a flexible polyurethane foam meeting the standard specifications for high resilience polyurethane foam as set forth in ASTM D-3770-79, when used in a foam formulation based on toluene diisocyanate and either (A) a polymer polyol prepared by polymerizing one or more ethylenically unsaturated monomers in a polyether polyol, or (B) a dispersion of polyurea and/or polyhydrazodicarbonamide in a hydroxyl group containing

Abstract: The present invention is directed to a polyol blend comprising:(a) from about 30 to about 90 percent by weight of a polyester diol having an OH number of from about 50 to about 500 and having the structure: ##STR1## wherein each R may be the same or different and represents a radical of the formula: ##STR2## where R" represents H or CH.sub.3 with the proviso that both R"s cannot be CH.sub.

Abstract: The invention relates to a thermoplastic molding composition comprising a blend of a thermoplastic polyester and a reinforcing amount of a reinforcing agent. An improvement in the impact performance of the composition is disclosed to result upon the incorporation therewith of a blocked (end-capped) polyisocyanate prepolymer.

Abstract: The present invention relates to the novel monomer 4,4'-bis(4-hydroxyphenyl thio)biphenyl, to a process for its production and to its use in the preparation of polycarbonates, polyurethanes, polyesters, polysulfones and polyethers.

Abstract: The present invention is directed to a process for the preparation of a stable, liquid adduct comprising reacting a mixture of neopentyl glycol and propylene glycol with a diphenylmethane diisocyanate containing less than 85 percent by weight of the 4,4'-isomer at a temperature of from about 25.degree. C. to about 120.degree. C. in an amount such that said adduct has an isocyanate group content of from about 20 to about 30 percent by weight and wherein the ratio of mole equivalents of neopentyl glycol to mole equivalents of propylene glycol is from 0.05:0.95 to 0.95:0.05, with the further proviso that(i) if the 4,4'-isomer content of the diphenylmethane diisocyanate is not less than 80 percent by weight, then said ratio is from 0.45:0.55 to 0.70:0.30,(ii) if the 4,4'-isomer content of the diphenylmethane diisocyanate is less than 80 percent by weight but not less than 70 percent by weight, then said ratio is from 0.35:0.65 to 0.85:0.

Abstract: The present invention is directed to a process for the preparation of a stable, liquid adduct comprising reacting a mixture of 1,3-butane diol and propylene glycol with diphenylmethane diisocyanate at a temperature of from about 25.degree. C. to about 120.degree. C. in an amount such that the resultant product has an isocyanate group content of from about 20 to about 30 percent by weight, and wherein the ratio of mole equivalents of 1,3-butane diol to mole equivalents of propylene glycol is from 0.05:0.95 to 0.95:0.05, with the further proviso that(i) if the 4,4'-isomer content of the diphenylmethane diisocyanate is equal to or greater than 90 percent by weight, then said ratio is from 0.45:0.55 to 0.70:0.30, and(ii) if the 4,4'-isomer content of the diphenylmethane diisocyanate is less than 90 percent by weight, but not less than 70 percent by weight, then said ratio is from 0.30:0.70 to 0.85:0.15.The invention is also directed to a product produced from such process.

Abstract: The present invention is directed to a process for the preparation of a stable, liquid adduct comprising reacting a mixture of 1,3-butane diol and neopentyl glycol with diphenylmethane diisocyanate at a temperature of from about 25.degree. C. to about 120.degree. C. in an amount such that said adduct has an isocyanate group content of from about 20 to about 30 percent by weight, and wherein the ratio of mole equivalents of 1,3-butane diol to mole equivalents of neopentyl glycol is from 0.05:0.95 to 0.95:0.05, with the further proviso that(i) if the 4,4'-isomer content of the diphenylmethane diisocyanate is equal to or greater than 98 percent by weight, then said ratio is from 0.30:0.70 to 0.65:0.35,(ii) if the 4,4'-isomer content of the diphenylmethane diisocyanate is less than 98 percent by weight but not less than 90 percent by weight, then said ratio is from 0.30:0.70 to 0.75:0.

Abstract: The present disclosure is concerned with a process of reacting a solid aromatic amine with liquid acetic anhydride to yield a solid amide. The amine is in a flowable particulate form and it is subject to sufficient agitation during the reaction to prevent agglomeration. The amide is recovered as a flowable particulate by evaporation of the acetic acid by product and any excess acetic anhydride.

Abstract: The present invention is directed to a continuous process for the preparation of copolycarbonates of sulfonyl diphenol (SDP) containing at least about 15, preferably about 15 to about 80 percent by weight of SDP and characterized in the particular system catalyzing the process reaction. The invention thus entails improvements and modifications to the known interfacial polycondensation process rendering it applicable to the preparation of copolycarbonates containing a high level of SDP comprising a combination of catalysts namely a phase transfer catalyst and a condensation catalyst.

Abstract: The present invention is directed to a thermoplastic molding composition comprising a high molecular weight polyester, a reinforcing amount of a reinforcing agent and a polyepoxy compound characterized in that it contains more than two terminal epoxy functionalities per molecule.

Abstract: The present invention is directed to a polyester polyol having an hydroxyl number of from about 25 to about 130 and an acid number of 2 or less, produced by reacting(a) from about 40 to about 60 parts by weight of adipic acid,(b) from about 1 to about 20 parts by weight of ethylene glycol,(c) from about 1 to about 30 parts by weight of 1,4-butanediol, and(d) from about 5 to 50 parts by weight of a polyoxyethylene glycol having a molecular weight of from 106 to 680,the total parts of (a), (b), (c) and (d) being 100, and to a blend of such polyester polyol with 1,4-butanediol and/or ethylene glycol.

Abstract: The present invention is directed to thermoplastic molding compositions which comprise a blend containing a thermoplastic polyester, a polycarbonate resin and an impact modifier and an amount of a blocked polyisocyanate prepolymer sufficient to improve the impact resistance and gasoline resistance of said blend.

Abstract: The present invention is directed to an aqueously dispersed, heat-curable coating composition comprising(a) a water-dispersible epoxy resin component containing external and/or chemically incorporated non-ionic emulsifiers and(b) a water-dispersible, blocked polyisocyanate component containing chemically incorporated anionic hydrophilic groups in a weight ratio of component (a) to component (b) of about 1:10 to 10:1.The present invention is also directed to a process for producing coated substrates from these compositions and to the coated substrates produced therefrom.

Abstract: The present invention is directed to a process for the production of optionally cellular, polyurethane elastomer molding by reacting a reaction mixture containing(I) a polyisocyanate,(II) an isocyanate-reactive polymer having a molecular weight of about 1800 to 12,000,(III) about 5 to 50% by weight, based on the weight of component (II) of a chain extender comprising a sterically hindered aromatic diamine and(IV) an internal mold release agent mixture comprising(a) about 0.

Abstract: The present invention is directed to a process for improving the storage stability of a composition which contains(a) a blocked polyisocyanate prepared by blocking the isocyanate groups of an organic polyisocyanate with a blocking agent comprising a di-C.sub.1 -C.sub.12 -alkyl and/or -alkoxyalkyl malonate and(b) is free from compounds containing at least two isocyanate-reactive hydrogens, which comprises incorporating a stabilizing amount of a compound having monofunctional reactivity towards isocyanates into the composition.The present invention is also directed to the storage stable composition produced in accordance with the above process.

Abstract: The invention relates to thermoplastic aromatic polycarbonates which structural units are characterized by their end groups which are residues of ##STR1## and is predicated on the surprising and unexpected findings that high melt flow polycarbonates of this type are rendered improved impact performance by admixing therewith small amounts of an impact modifier.

Abstract: The invention relates to an aromatic, high molecular weight thermoplastic copolycarbonate comprising the reaction product of a sulfur-free aromatic diphenol, a sulfur-containing diphenol, a branching agent and a carbonic acid derivative, characterized in having improved flame resistance. The invention further relates to a process for the preparation of said copolycarbonate.

Abstract: Polycarbonate compositions comprising an aromatic polycarbonate resin wherein dispersed are powdered sulfates, are particularly suitable for the preparation of films characterized by their low coefficient of static friction, high light transmission and virtual freedom from haze.

Abstract: It is an object of the invention to provide a polycarbonate composition having improved mechanical properties and a process for the preparation of said composition. These objects are achieved in accordance with the present invention which teaches a blend of a polycarbonate resin and an additive amount of an aromatic bis-imide compound. The composition comprising said blend retains a surprising degree of ductility as measured by tensile elongation and yield strength and exhibits an improvement in both tensile strength and flexural modulus.

Abstract: The present invention relates to a stable, aqueous dispersion of polyurethane-ureas wherein said polyurethane-ureas contain(i) about 10 to 120 milliequivalents per 100 grams of polyurethane-urea of chemically incorporated anionic groups, and(ii) up to about 10% by weight, based on the weight of the polyurethane-urea, of lateral and/or terminal hydrophilic chains containing ethylene oxide units,wherein the counterions of the anionic groups are a mixture of volatile and non-volatile cations in an equivalent ratio of about 1:4 to 4:1.The present invention is also directed to the coatings and films prepared from these dispersions.