POLYURETHANE ADHESIVE CONTAINING A SILOXANE INTERNAL MOLD RELEASE AND ITS USE IN THERMOFORMABLE LAMINATES

摘要

There is provided a two-component polyurethane adhesive containing a siloxane polycarbinol compound having at least two hydroxyl groups which acts as an internal mold release agent without noticeably affecting the adhesive strength of the adhesive. The two-component polyurethane adhesive containing the siloxane polycarbinol compound may be used to adhere thermoformable foams to fibers such as glass mats and scrim in an optionally heated press without sticking to the mold surface yet exhibiting foam tear rather than delamination at the foam/fiber interface.