COMPOSITES PRODUCED FROM SPRAYABLE ELASTOMERIC POLYURETHANE FOAM

摘要

The present invention relates to a composite containing a first plastic layer, a second plastic layer and a sprayable elastomeric polyurethane foam made from the reaction product of at least one isocyanate, at least one polyol and water, optionally at least one of blowing agents, surfactants, cross-linking agents, extending agents, pigments, flame retardants, catalysts and fillers, wherein the sprayable elastomeric polyurethane foam is sprayed onto one surface of the first plastic layer and expands to contact and adhere to one surface of the second plastic layer which is oriented parallel to the one surface of the first plastic layer and wherein the sprayable elastomeric polyurethane foam has a free rise density of from about 5 lb/ft3 to about 25 lb/ft3, a reactive cream time of from about 10 seconds to about 120 seconds, an elongation of from about 30% to about 300%, a molded density of from about 25 lb/ft3 to about 65 lb/ft3 and a peel strength of greater than about 2.0 lb/in2. Such composites may find use in a variety of applications.