Patent ID: 8129479
Filing Date: 2012-03-06
Classification: C08G,C08L,C09J,Y10T

Abstract:
1. A pressure sensitive adhesive product comprising a support obtained by applying a pressure sensitive adhesive composition which comprises the following components (A), (B) and (C) to the support and thermally curing the pressure sensitive adhesive composition: (A) a hydrolyzable silyl group-containing organic polymer containing at least 1.3 hydrolyzable silyl groups per molecule and having a number average molecular weight of 20,000 to 50,000, the main chain of the organic polymer being substantially composed of a repeating unit or units represented by the general formula —R (B) a hydrolyzable silyl group-containing organic polymer containing 0.3 to 1.3 hydrolyzable silyl groups per molecule and having a number average molecular weight of 3,000 to 10,000, a compounding ratio of which is 3 to 100 parts by weight relative to 100 parts by weight of (A), and the main chain of which polymer being substantially composed of a repeating unit or units represented by the general formula —R′-O— (R′ being a divalent alkylene group); (C) a tackifier resin selected from the group consisting of terpene resins, terpene phenol resins, petroleum resins, rosin ester resins, and admixtures thereof, and a compounding ratio of which is 30 to 100 parts by weight, relative to a combined total of 100 parts by weight of (A) and (B).