| 摘要 |
The present invention provides an adhesive composition comprising a polyurethane resin and, as adhesion promoter, a compound of formula I: <IMAGE> 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 0 or S; X is 0, S or N-C1-C4 alkyl; R1 is C1-C8 alkylene; 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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