TITANIUM COMPLEXES AS VULCANIZATION CATALYSTS

摘要

The invention relates to a curable composition comprising: a) at least one polymer having at least one silicon-containing group of formula —Si(R1)k(Y)3-k as defined herein; b) at least one titanium compound of formula Ti(L)n(NX2)m or Ti(R3)(L)3, where each X is independently a hydrogen atom, a hydrocarbon radical containing 1 to 20 C atoms, which may optionally contain one or more heteroatoms, in particular nitrogen atoms, or a silicon-containing organic group, or two X together with the nitrogen atom to which they are bound form a heterocyclic ring; each L is independently a hydrolyzable oxygen- or nitrogen-containing organic group, in particular an alkoxy group; R3 is a hydrocarbon radical containing 1 to 20 C atoms, which may optionally contain one or more heteroatoms, in particular silicon atoms; and m is 1, 2, 3, or 4 and and n is 0, 1, 2, or 3, where m+n=4; and c) optionally at least one compound which has a hydrolyzable silicon-containing group and a molecular weight in the range of 100 to 1000 g/mol, preparations containing these compositions and use thereof.

主权项

1. Curable composition comprising
a) at least one polymer having at least one silicon-containing group of formula (1)
—Si(R1)k(Y)3-k   (1),where R1 is a hydrocarbon radical containing 1 to 20 C atoms or a triorganosiloxane group of formula —O—Si(R2)3, where each R2 is independently a hydrocarbon radical containing 1 to 20 C atoms;each Y is independently a hydroxy group or a hydrolyzable group, in particular an oxime group and/or alkoxy group; andk is 0, 1, or 2;
b) at least one titanium compound of formula (2)
Ti(L)n(NX2)m   (2)or of formula (3)
Ti(R3)(L)3   (3),where each X is independently a hydrogen atom, a hydrocarbon radical containing 1 to 20 C atoms, which may optionally contain one or more heteroatoms, in particular nitrogen atoms, or a silicon-containing organic group, or two X together with the nitrogen atom to which they are bound form a heterocyclic ring;each L is independently a hydrolyzable oxygen- or nitrogen-containing organic group, in particular an alkoxy group;R3 is a hydrocarbon radical containing 1 to 20 C atoms, which may optionally contain one or more heteroatoms, in particular silicon atoms; andm is 1, 2, 3, or 4 and n is 0, 1, 2, or 3, where m+n=4; and
c) optionally at least one compound which has a hydrolyzable silicon-containing group and a molecular weight in the range of 100 to 1000 g/mol, in particular an aminosilane.