Patent ID: 7332541

Claim:
A polymer composition comprising at least one alkoxysilane-terminated polymer (P) bearing end group(s) (1) of the general formula -A-CH 2 —SiR 1 a (OR 2 ) 3-a (1) where A each independently is a divalent linking group selected from the group consisting of —O—CO—N(R 3 )—, —N(R 3 )—CO—O—, —N(R 3 )—CO—NH—, —NH—CO—N(R 3 )— and —N(R 3 )—CO—N(R 3 ), R 1 each independently is an unsubstituted or halogen-substituted alkyl, cycloalkyl, alkenyl or aryl radical having 1-10 carbon atoms, R 2 each independently is an alkyl radical having 1-6 carbon atoms or an ω-oxaalkyl-alkyl radical having in total 2-10 carbon atoms, R 3 each independently is hydrogen, an unsubstituted or 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, where a) the polymer compositions exhibit skin formation times >40 minutes at 23° C. and 50% relatively atmospheric humidity, and b) the skin formation times of the polymer compositions can be reduced to <20 minutes by the addition of a catalyst (K) at concentrations of up to 3% by weight wherein the polymer(s) (P) are obtained by reaction employing an aminosilane (A1) of the formula (2) NH(R 3 )—CH 2 —SiR 1 a (OR 2 ) 3-a (2) where R 3 is a C 6 to C 18 aryl radical, further containing 0.001%-3% by weight of a sterically hindered aliphatic amine.