1,4-Bis-(4-isocyanatophenoxy)-benzenes, process for their preparation and their use in the production of polyurethane plastics

摘要

1. 1,4-Bis-(4-isocyanatophenoxy)-benzenes corresponding to the following general formula see diagramm : EP0244727,P6,F5 in which R**1 and R**2 may be the same or different and represent a hydrogen atom or a methyl group.