Patent ID: 9518202
Filing Date: 2016-12-13
CPC Classification: C08G,C09J,Y10T

Claim Text:
1. A heat-curable adhesive composition comprising: (α) from 47% to 60% weight/weight of a composition (A) comprising polymers bearing hydrolyzable alkoxysilane end groups which composition (A) is: from 10% to 50% weight/weight of a polymer (A1) of formula (I): in which: R R R R n is an integer such that the number-average molar mass of the polyether block of formula —[OR m is either equal to 0 or a non-zero integer such that the number-average molar mass of the polymer of formula (I) is between 600 Da and 60 kDa; p is an integer equal to 0, 1 or 2; and from 50% to 90% weight/weight of a composition (A2) comprising at least 85% weight/weight of polyurethanes bearing hydrolysable alkoxysilane end groups of formula (II): in which: R R R q is an integer equal to 0, 1 or 2; r is a number such that the number-average molar mass of the polymers of formula (II) is between 900 Da and 11 kDa; R in which: R R s is a number such that the polyester diol of formula IV: has a hydroxyl number I (β) from 37% to 50% weight/weight of a compatible tackifying resin (B) with a number-average molar mass of between 200 Da and 10 kDa; and (γ) from 0.01% to 3% weight/weight of a crosslinking catalyst (C).