Abstract: This invention relates to reactive systems for the production of cavity filling polyurethane foams for NVH (noise vibration and harshness) application areas in which the system exhibits reduced isocyanate emissions. These foams comprises a polyisocyanate comprising a polymethylene poly(phenylisocyanate).

Abstract: This invention relates to reactive systems for the production of low density, cavity filling polyurethane foams for NVH (noise vibration and harshness) application areas in which the system exhibits reduced VOC emissions. These foams comprises an isocyanate-reactive component having a viscosity of at least about 3,000 mPa·s, at 23° C., and comprises at least one amine-initiated compound which contains isocyanate-reactive groups.

Abstract: This invention relates to reactive systems for the production of cavity filling polyurethane foams for NVH (noise vibration and harshness) application areas in which the system exhibits reduced isocyanate emissions. These foams comprises a polyisocyanate comprising a polymethylene poly(phenylisocyanate).

Abstract: The present invention relates to an improved isocyanate reactive mixture containing at least one DMC-catalyzed polyol and about 0.25 to about 15 wt. %, based on the total weight of the isocyanate-reactive mixture, of at least one ethylene oxide (EO) containing water compatibilizer. The isocyanate reactive mixtures of the present invention may find use in the preparation of polyurethane foams, coatings, elastomers, sealants, adhesives and the like.

Abstract: Energy absorbing flexible foams can be produced by reacting an isocyanate with a first polyol, prepared at least in part by an active double metal cyanide catalyst and a second polyether polyol is prepared at least in part by a basic or acidic catalyst.

Abstract: The present invention relates to an improved isocyanate reactive mixture containing at least one DMC-catalyzed polyol and about 0.25 to about 15 wt. %, based on the total weight of the isocyanate-reactive mixture, of at least one ethylene oxide (EO) containing water compatibilizer. The isocyanate reactive mixtures of the present invention may find use in the preparation of polyurethane foams, coatings, elastomers, sealants, adhesives and the like.

Abstract: Energy absorbing flexible foams can be produced by reacting an isocyanate with a first polyol, prepared at least in part by an active double metal cyanide catalyst and a second polyether polyol is prepared at least in part by a basic or acidic catalyst.

Abstract: A process for the manufacture of polyurethane foam comprising the steps of (i) mixing at a reaction index of 40 to 400: (a) a polyisocyanate blend comprising at least one polyisocyanate and optionally, additives and fillers; (b) a polyol blend comprising isocyanate reactive components and optionally, water, additional blowing agents, catalysts, surfactants, fillers and other additives; wherein either or both said polyisocyanate blend or said polyol blend contain between 0.3 to about 20 wt. % CO.sub.2 based on the total weight of said polyisocyanate blend and said polyol blend; (ii) introducing and uniformly mixing in liquid form of CO.sub.2 as a blowing agent into either or both said polyisocyanate blend or said polyol blend and maintaining said CO.sub.2 in said liquid form. The present invention also relates to an apparatus, which performs the above-mentioned process.

Abstract: A process for the manufacture of polyurethane foam comprising the steps of (i) mixing at a reaction index of 40 to 400: (a) a polyisocyanate blend comprising at least one polyisocyanate and optionally, additives and fillers; (b) a polyol blend comprising isocyanate reactive components and optionally, water, additional blowing agents, catalysts, surfactants, fillers and other additives; wherein either or both said polyisocyanate blend or said polyol blend contain between 0.3 to about 20 wt. % CO.sub.2 based on the total weight of said polyisocyanate blend and said polyol blend; (ii) introducing and uniformly mixing in liquid form of CO.sub.2 as a blowing agent into either or both said polyisocyanate blend or said polyol blend and maintaining said CO.sub.2 in said liquid form. The present invention also relates to an apparatus, which performs the above-mentioned process.

Abstract: The present invention is directed to a process for the production of a flexible polyurethane foam comprising reacting an organic polyisocyanate and a polyol, in the presence of a blowing agent, a catalyst, and a foam stabilizer, the improvement wherein a foam of increased load bearing is obtained by including in the reaction mixture from about 8 to about 25 parts by weight per 100 parts by weight of said polyol of a mixture comprising(a) from 30 to 100 percent by weight of an addition product of an alkylene oxide and an aromatic diamine, said addition product having an average hydroxyl functionality of at least 2.

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 the discovery that the substitution of isocyanate coupled polyols for polyols conventionally used in the art leads to flexible polyurethane foams having significantly enhanced load bearing properties. More particularly, the present invention is directed to a process for the production of a flexible polyurethane foam having improved load bearing characteristics and to the foams so produced. The present process broadly comprises reacting an organic polyisocyanate with a coupled polyol in the presence of a blowing agent, a catalyst and a foam stabilizer. The coupled polyol consists essentially of the reaction product of an organic polyisocyanate and an organic compound having a hydroxy functionality ("functionality" as used herein is intended to mean the average number of reaction groups per molecule) of greater than 2, wherein the ratio of hydroxyl groups to isocyanate groups is greater than 1.0.

Abstract: The instant invention is directed to the post treatment of flexible polyurethane foams. It has been found that the water absorbency and penetration of flexible polyurethane foams can be enhanced by washing and/or impregnating the foam with an aqueous solution of specified organic siloxane surfactants and allowing the treated foam to dry.