Tinorganic catalyst with increased crosslinking speed for silane crosslinking reactions
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United States of America Patent
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Apr 6, 1999
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N/A
app pub date -
Jul 30, 1996
filing date -
Dec 20, 1993
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Abstract
A cross-linkable polymer composition contains a cross-linkable polymer with hydrolysable silane groups and at least one silanol condensation catalyst. The polymer composition is distinguished by the silanol condensation catalyst being a tinorganic compound of formula (I); RSn(OH).sub.k X.sub.1 OSn(OH).sub.m X.sub.n R', wherein R and R' are hydrocarbon radicals, R' being the same as or different from R, X is a halogen, h is 1 or 2, j is 1 or 2, h+j=3, k, l, m and n are 1 or 2, k+1=2, m+n=2 and at least one of 1 and n is different from 0. Preferably, the composition contains 0.0001-3% by weight of the silanol condensation catalyst.
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