Patent ID: 8304486

Claim:
A water-base adhesive mix for producing tyres, characterized by comprising, by weight, 20 to 80% water, 10 to 40% of a cross-linkable unsaturated-chain polymer base, 0.2 to 1% sulphur, 1 to 25% of a reinforcing filler, 1 to 10% of emulsifiers, 2 to 8% of a resin which cross-links by reaction with polyisocyanates, and 0.5 to 5% of an aqueous dispersion comprising blocked aromatic polyisocyanates with an activation temperature of 120 to 160° C.; said blocked aromatic polyisocyanates being produced by reaction of a polyisocyanate (a), a blocking agent (b), and a nonionic diol alkoxylate (c) of the general formula (I) R 1 CH 2 O(CH 2 CH 2 O) n (CH 2 CHCH 3 O) m R 2 (I) where R 1 is R 2 and R 3 are the same or different, and are selected from methyl, ethyl, n-propyl, i-propyl, n-butyl, i-butyl; n is a whole number from 0 to 40 m is a whole number from 0 to 40 n+m is a whole number from 20 to 80.