Patent ID: 9637668
Date: 2017-05-02
CPC Classifications: B32B,C04B,C08G,C09J

Claim:
1. Polyurethane adhesive consisting of a first and a second component, wherein the first component contains a) at least one triol A1 with a molecular weight in the range from 1000 to 10,000 g/mol, b) at least one diol A2 with two primary hydroxyl groups and a molecular weight in the range from 60 to 150 g/mol, and c) at least one aliphatic polyamine A3 with a molecular weight in the range from 60 to 500 g/mol; the second component contains d) at least one polyisocyanate B1 and e) at least one polyurethane polymer B2 having isocyanate groups; and the polyurethane adhesive moreover contains f) at least one catalyst K in the form of a metal-chelate complex, wherein the metal is selected from the group consisting of Fe(III), Ti(IV), Zr(IV) and Hf(IV); wherein the triol A1, the diol A2 and the polyamine A3 are present in such a quantity that g) the ratio V1 of the number of OH groups and the number of NH h) the ratio V2 of the number of OH groups and the number of NH