NEW CARBODIIMIDES HAVING TERMINAL UREA AND/OR URETHANE GROUPS, METHODS FOR PRODUCING SAID CARBODIIMIDES, AND USE OF SAID CARBODIIMIDES

摘要

The invention relates to novel carbodiimides having terminal urea and/or urethane groups, methods for the preparation thereof and use thereof as stabilizers in ester-based polyols, in polyethylene terephthalate (PET), in polybutylene terephthalate (PET), in polytrimethylene terephthalate (PTT), in copolyesters, in thermoplastic polyester elastomers (TPE E), in ethylene vinyl acetate (EVA), in polylactic acid (PLA) and/or in PLA derivatives, in polybutylene adipate terephthalates (PBAT), in polybutylene succinates (PBS), in polyhydroxyalkanoates (PHA), in blends, in triglycerides, in thermoplastic polyurethanes, in polyurethane elastomers, in PU adhesives, in PU casting resins, for PU coatings or in PU foams.

主权项

1. Carbodiimides having terminal urea and/or urethane groups, the carbodiimides being of the formula (I) in which each R may be the same or different and is selected from the group of —NHCONHR′, —NHCONR′R″ and —NHCOOR′″ residues, where R′ and R″ are the same or different and are a C1-C22-alkyl, C6-C12-cycloalkyl, C6-C18-aryl or C6-C18-aralkyl residue, and R′″ corresponds to C1-C22-alkyl, C6-C12-cycloalkyl, C6-C18-aryl or C6-C18-aralkyl, or an unsaturated alkyl residue having 2-22 carbon atoms, or an alkoxypolyoxyalkylone residue, R1, R2 and R3 are each independently methyl or ethyl, wherein each benzene ring has only one methyl group, and n=0 to 20.