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 against hydrolytic degradation of a compound containing ester groups, comprising:
contacting the compound containing ester groups with a biobased carbodiimide, wherein the biobased carbodiimide is obtained from the reaction of at least one carbodiimide and at least one carbon acid compound isolated or produced from renewable raw materials and having a functionality >1 and more than 4 carbon atoms selected from the group of Castor oil, rapeseed oil, soy oil, tall oil, starch, sugar and mixtures of these, and/or a hydroxy carboxylic ester having 2-24 carbon atoms according to formula (IV)where n=2-20,
wherein said reaction is carried out at temperatures between 20 and 200° C. in solution and/or in the absence of a solvent in the presence or absence of a catalyst.