| abstract |
The invention provides a method of increasing the elasticity of moisture-cured elastomers, which comprises adding to alkoxy-cross linking one-component compositions comprising an alkoxysilane-terminated polymer (A) containing end groups of the formula (1) n n-A-Si(R) a (CH 3 ) 3-a (1) na silane (B), of the general formula (2) n nX—CH 2 —Si(R) 2 (CH 3 ) (2) nwhere A is a divalent hydrocarbon radical, R is a methoxy or ethoxy group, X is a group R″O—, R″NH—, R′—O—CO—NH, R′—NH—CO—NH— or halogen, n R″ is hydrogen, an optionally halogen-substituted C 1-18 hydrocarbon radical or a radical R′—O—CO— or R′—NH—CO, R′ is an optionally halogen-substituted C 1-8 hydrocarbon radical, and a is 1, 2 or 3. |