Silane coupling agent, making method, primer composition, and coating composition

摘要

A silane coupling agent is obtained from high-temperature heat distillation reaction of a silane coupling agent having a customary amic acid structure group. Dealcoholization reaction takes place between the carboxylic acid group and the alkoxysilyl group in the structure to induce intramolecular crosslinking. The crosslinked polymer component exerts a remarkable adhesion promoting effect.

主权项

1. A silane coupling agent consisting of a mixture of organosilicon compounds having the general formula (1):wherein R1 is independently C1-C10 alkyl or C6-C10 aryl, R2 is independently hydrogen, C1-C10 alkyl or C6-C10 aryl, X is independently C1-C10 alkyl or C6-C10 aryl, n is an integer of at least 1, p is an integer of 0 to 3, and q is an integer of 0 to 2.