Patent ID: 9708519
Date: 2017-07-18
CPC Classifications: C08G,C08L,C09D,C09J,Y10T

Claim:
1. A heat-curable adhesive composition comprising: (a) from 35% to 75% weight/weight of a composition (A) comprising at least 90% weight/weight of polyurethanes bearing hydrolysable alkoxysilane end groups of formula (I): in which: R R R R m is an integer such that the number-average molar mass of the polyurethanes of formula (I) is between 900 Da and 27 kDa; and p is an integer equal to 0, 1 or 2; wherein composition (A) is obtained via a process that comprises preparing a composition (A-1) of polyester diols of formula R such that said composition (A-1) has a hydroxyl number I (b) from 22% to 62% weight/weight of a compatible tackifying resin (B) with a number-average molar mass of between 200 Da and 10 kDa; and (c) from 0.01% to 3% weight/weight of a crosslinking catalyst (C).