The building a bridge Characteristic acrylic rubber constituent and its building a bridge thing

摘要

PROBLEM TO BE SOLVED: To provide a crosslinkable acrylic rubber composition giving a crosslinked product excellent in heat resistance, hardly causing degradation even exposed under high temperature for long hours and hardly causing scorching, by a simple procedure.;SOLUTION: This crosslinkable acrylic rubber composition contains 0.05-5 pts.wt. multivalent primary amine crosslinking agent (B) and 0.05-3 pts.wt. p-aminodiphenylamine (C) each to 100 pts.wt. acrylic rubber (A) in which the total amount of an acrylic ester monomer (a) unit and a carboxy group-containing ethylenically unsaturated monomer (b) unit occupies ≥70 wt.%, and the acrylic ester monomer (a) unit occupies 90-99.9 wt.% of the total amount.;COPYRIGHT: (C)2009,JPO&INPIT