Pressure-sensitive adhesive composition

Abstract

Abstract PURPOSE:To provide a pressure-sensitive adhesive compsn. having excellent heat resistance and silicone-strippability, consisting of an org. polymer contg. a hydrolyzable silicon-contg. group, a tackifying resin and a curing catalyst. CONSTITUTION:0-140pts.wt. tackifying resin such as rosin ester resin or low- molecular PS resin and 0.01-20pts.wt. curing catalyst such as an organozir conium or organoaluminum compd. of formula III or IV [wherein n is 0-4; lis 0-3; R is a 1-20C monovalent hydrocarbon group; Y is a 1-8C (halogenated) hydrocarbon group, (cyano)alkoxy, etc.] are blended with 100pts.wt. org. polymer having a MW of 3,000-15,000 such as alkylene oxide polymer contg. at least one hydroxyazable silicon-contg. group, obtd. by adding a hydro genated silicone compd. of formula I [wherein R<2> is R' or a triorganosiloxy group of formula II (wherein R' is a 1-20C monovalent hydrocarbon group); X is a hydroxyl, hydrolyzable group; a is 0-3; b is 0-2; m is 1-18] to an alkylene oxide polymer contg. unsaturated groups in the presence of a platinum compd. catalyst by a hydrosilylating reaction.

Inventors

• 👤 Toshibumi Hirose
• 👤 広瀬　俊文
• 👤 Katsuhiko Isayama
• 👤 諌山　克彦

Bibliographic Details