Mixtures of dibasic acid esters and nonylphenol as cell openers in low density rigid polyurethanes useful in pour-behind-fabric applications of low density SRIM

摘要

The invention relates to low density cellular, rigid polyurethanes which employ the dimethyl esters of adipic, glutaric and succinic acids and mixtures thereof in conjunction with nonylphenol as cell-opening agents. The use of this ester phenol mixture obviates the need of other surfactants, particularly silicone surfactants which reduce the adhesion of the urethanes to fabrics in pour-behind-fabric applications.