Patent ID: 7816462

Claim:
A process for adhesively bonding substrates, comprising bonding the substrates with an adhesive comprising a polymer binder and a crosslinker compound I comprising carbodiimide groups, wherein the compound comprising carbodiimide groups is obtainable by reacting a) carbodiimides of 1,3-bis(1-methyl-1-isocyanatoethyl)benzene, 1,4-bis(1-methyl-1-isocyanatoethyl benzene or a mixture hereof with b) polyalkylene oxides of the formula H—O—(CH 2 —CHR 1 —O—) n H where R 1 is H or CH 3 and n is an integer from 1 to 100, and c) optionally, further compounds reactive with a) or b) in an amount less than 5% by weight, based on the sum of a), b) and c), wherein more than 40% by weight of the compound I is composed of ethylene oxide units.