Composto de carbodiimida cíclica, processo para produzir o composto de carbodiimida cícluca, e, agentes de selagem, e de captura para um grupo ácido

摘要

A cyclic carbodiimide compound which is useful as an end-sealing agent for polymer compounds. The cyclic carbodiimide compound is represented by the following formula (i):
(in the above formula, X is a divalent group or a tetravalent group represented by the following formula (i-4). When X is divalent, q is 0 and when X is tetravalent, q is 1. Ar 1 to Ar 4 are each independently an aromatic group. They may be substituted by an alkyl group having 1 to 6 carbon atoms or phenyl group.)