Patent ID: 7932322

Claim:
An epoxy-terminated polymer of the formula (I) where R 1 is a divalent radical of a carboxyl-terminated butadiene/acrylonitrile copolymer CTBN after removal of the terminal carboxyl groups; R 2 is a radical of a compound XAV which has n XH groups and is selected from the group consisting of polyamines, polymercaptans, (poly)aminoalcohols, (poly)mercaptoalcohols and (poly)aminomercaptans, after removal of n XH groups; R 3 is a diglycidyl ether DGE after removal of the two glycidyl ether groups; Y 1 is H or methyl; X is independently S, NH or NR 0 or O, with the proviso that only one X in the molecule is O, where R 0 is an alkyl, cycloalkyl or aryl radical having 1 to 8 carbon atoms or a divalent radical, which is joined to R 2 ; and n is 2 to 4.