Biobased carbodiimides, a process for preparation thereof and use thereof

摘要

The present invention relates to novel biobased carbodiimides, a process for production thereof and use thereof. The biobased carbodiimides according to the invention comprise the reaction product of at least one carbodiimide and a carbon acid compound isolated or produced from renewable raw materials and having a functionality>1 and/or a hydroxy carboxylic ester having 2-24 carbon atoms.

主权项

1. A process for stabilizing a compound containing ester groups, against hydrolytic degradation, the process comprising:
contacting a compound containing ester groups with a biobased carbodiimide produces by reacting at least one carbodiimide and at least one carbon acid compound at a temperature of 20° C. to 200° C., wherein the carbodiimide comprises:
a compound of formulae (II), where x =1 to 50 ;a compound of formulae (III), where y=1 to 20, and /ordicyclohexylmethane 4,4′-diisocyanate (H 12-MDI=hydrogerated MDI); and wherein the at least one carbon acid compound has a functionality greater than 1, comprises greater than 4 carbon atoms, and is from a renewable source selected from the group consisting of castor oil, rapeseed oil, soy oil, tall oil, and combinations thereof.