ONE-POT PROCESS FOR THE PRODUCTION OF POLYCARBODIIMIDE CURED POLYMERS

• Main Authors: LIANG, Dong, HUANG, Jia Yue, WU, Hai Sheng, LI, Chang Xi, CAI, Zhi Zhong, ZHU, Li Chao, SUN, Xiao Yu
• Format: Patent
• Language: English; French
• Published: 23.03.2023
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS AS ADHESIVES; USE OF MATERIALS THEREFOR; WOODSTAINS

The present invention relates to a one-pot process for the production of polycarbodiimide cured polymers, comprising a reaction of (a) at least one polycarbodiimide with two or more carbodiimide functionalities per molecule, (b) at least one polyol with two or more hydroxyl functionalities per molecule, and (c) at least one cyclic carboxylic anhydride. La présente invention concerne un procédé monotope pour la production de polymères durcis de polycarbodiimide, comprenant une réaction de (a) au moins un polycarbodiimide ayant au moins deux fonctionnalités carbodiimide par molécule, (b) au moins un polyol ayant au moins deux fonctionnalités hydroxyle par molécule, et (c) au moins un anhydride carboxylique cyclique.