Adhesion promoters

Details Adhesion promoters Adhesion promoters

C - Chemistry, Metallurgy

09

J

C09J 175/04 (2006.01) C08G 18/10 (2006.01) C08K 5/21 (2006.01) C08K 5/29 (2006.01) C08K 5/3477 (2006.01) C08K 5/39 (2006.01)

Patent

CA 2107594

Abstract of the Disclosure Adhesion Promoters The present invention provides an adhesive composition comprising a polyurethane resin and, as adhesion promoter, a compound of formula I: (Y=C=N)n-Z[-NH?-X-R1-Si(OR2)3-q(R3)q]m I in which Z is an organic radical which is derived from an aliphatic aromatic or heterocyclic polyisocyanate containing m + n isocyanate groups; m is a value greater than or equal to 1; n is a value greater than or equal to 0; m + n is a value greater than or equal to 2; Y is O or S; X is O, S or N-C1-C4 alkyl; R1 is C1-C8alkylene; R2 is C1-C4 alkyl or two groups R2 together for m a C1-C4 alkylene residue; R3 is C1-C4 alkyl or phenyl; and q is a value from 0 to 2.

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