HETEROGENEOUS SINGLE COMPONENT SYSTEM COMPRISING LONG STORAGE LIFE POLYOL/DIPHENYLMETHANE URETDIONE DIISOCYANATE, MANUFACTURE AND USE FOR SYNTHESIS OF HIGH MOLECULAR POLYURETHANE

摘要

Storage stable heterogeneous systems which may be processed at low temperatures to form polyurethanes are made by mixing a specific quantity of a high molecular weight polyhydroxyl compound with a specified quantity of a 4,4'-diphenyl methane uret dione diisocyanate corresponding to a specified formula or a corresponding modified diisocyanate. A lead and/or tin catalyst is also included.