| abstract |
The present invention relates to a composition for cross-linking and stabilizationnof a polymer containing hydrolysable silane groups comprising annacidic silanol condensation catalyst characterized in that it comprises anstabilizer which is neutral or acidic, does not contain ester groups and is ancompound according to formula (I):n nwhereinn R is an unsubstituted or substituted aliphatic or aromatic hydrocarbylnradical which may comprise heteroatoms, R' is a hydrocarbyl radical, R" is a hydrocarbyl radical and R' and/or R" being a bulky radical, X 1 , X 2 or X 3 is the same or different H or OH, whereby at least X 1 , X 2 ornX 3 is OH, and n is 1 to 4; nor a compound according to formula (II):n R'''―(S) p ―R''' nwhereinn R"' is an aliphatic hydrocarbyl radical and p is 1 to 6; nor a mixture of any of such compounds, to a stabilized polymer comprisingnthe above stabilizers and to a process for cross-linking and stabilizationnof silane group containing polymers in the presence of the abovenmentioned stabilizers. |