| 摘要 |
The present invention relates to a composition for cross-linking and stabilization of a polymer containing hydrolysable silane groups comprising a sulphonic acid as a silanol condensation catalyst characterized in that it comprises a stabilizer which is neutral or acidic, does not contain ester groups and is a compound according to formula (I): wherein R is an unsubstituted or substituted aliphatic or aromatic hydrocarbyl radical which may comprise heteroatoms, R' is a hydrocarbyl radical, R'' is a hydrocarbyl radical and R' and/or R'' being a bulky radical, X<SUB>1</SUB>, X<SUB>2 </SUB>or X<SUB>3 </SUB>is the same or different H or OH, whereby at least X<SUB>1</SUB>, X<SUB>2 </SUB>or X<SUB>3 </SUB>is OH, and n is 1 to 4; or a compound according to formula (II): <?in-line-formulae description="In-line Formulae" end="lead"?>R'''-(S)<SUB>p</SUB>-R''' (II) <?in-line-formulae description="In-line Formulae" end="tail"?> wherein R''' is an aliphatic hydrocarbyl radical and p is 1 to 6; or a mixture of any of such compounds, to a stabilized polymer comprising the above stabilizers and to a process for cross-linking and stabilization of silane group containing polymers in the presence of the above mentioned stabilizers.
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