Patent ID: 7094859

Claim:
A crosslinkable polymer blend, comprising at least one polymer A having endgroups of the formula (1) -L-CH 2 —SiR 1 a (OR 2 ) 3-a (1) wherein L is a divalent linking group selected from —O—CO—NH—, —N(R 3 )—CO—NH—, —S—CO—NH—, R 1 is an optionally halogen-substituted alkyl, cycloalkyl, alkenyl or aryl radical having 1–10 carbon atoms, R 2 is an alkyl radical having 1–6 carbon atoms or an ω-oxyalkylalkyl radical having a total of 2–10 carbon atoms, R 3 is hydrogen, an optionally halogen-substituted cyclic, linear or branched C 1 to C 18 alkyl or alkenyl radical or a C 6 to C 18 aryl radical, and a is an integer from 0 to 2, with the proviso that the fraction of the endgroups of the general formula (1) where a=2, relative to all the endgroups of the polymers present in the mixture which have alkoxysilane endgroups, is from 5% to 100%.