TDI PREPOLYMERS WITH IMPROVED PROCESSING CHARACTERISTICS.

摘要

The present invention relates to novel prepolymers of toluene diisocyanate and to a process for the preparation of these toluene diisocyanate prepolymers. This invention also relates to a process for the production of a polyurethane backing or a frothed foam backing on a substrate, and to a process for forming a layer of blown, cellular urethane foam on a suitable substrate. These novel prepolymers comprise toluene diisocyanate prepolymers with a small quantity of an epoxide.