CURABLE COMPOSITION BASED ON POLYMERS CONTAINING SILANE GROUPS AND ON A ZINC CATALYST

摘要

Composition including at least one polymer containing silane groups and at least one zinc(II) complex compound of Znk(L)x(Y)2k-nx, where k is an integer from 1-10, x is 1, 2, 3, or 4, n corresponds to;;of ligand L, Y is ligand having −1 charge, and L is ligand of;;where n is 1, 2, or 3, A is R4 or polyoxyalkylene group or group of polyoxyalkylated compound optionally having one or two terminal 1,3-ketoamide groups, R1 and R2 are hydrogen residue or monovalent saturated or unsaturated hydrocarbon group having 1-10 carbon atoms independently of each other or jointly bivalent alkylene group having 3-6 carbon atoms; R3 and R4 are hydrogen residue or monovalent saturated hydrocarbon group having 1-12 carbon atoms independently of each other, hydrocarbon group optionally contains one or more heteroatoms, or jointly bivalent alkylene group having 3-6 carbon atoms, which alkylene group optionally contains one or more heteroatoms. The invention further relates to the use of the zinc(II) complex compound of the formula Znk(L)x(Y)2k-nx as a catalyst for the cross-linking of polymers containing silane groups by means of moisture.

主权项

1. The use of a zinc(ll) complex of the formula Znk(L)x(Y)2k-nx where k is an integer from 1 to 10, x is 1, 2, 3 or 4, n corresponds to the value of n in the formula (I) of the ligand L below, Y is a singly negatively charged ligand and L is a ligand of the formula (I) where n is 1, 2 or 3, A is R4 or a polyoxyalkylene radical or a radical of a polyoxyalkylated compound optionally having one or two terminal 1,3-ketoamide groups of the formula where R1, R2 and R3 are as defined below, R1 and R2 are each independently a hydrogen radical or a monovalent saturated or unsaturated hydrocarbyl radical having 1 to 10 carbon atoms or together are a divalent alkylene radical having 3 to 6 carbon atoms, and R3 and R4 are each independently a hydrogen radical or a monovalent saturated hydrocarbyl radical which has 1 to 12 carbon atoms and optionally contains one or more heteroatoms or together are a divalent alkylene radical which has 3 to 6 carbon atoms and optionally contains one or more heteroatoms, as catalyst for the crosslinking of polymers containing silane groups by means of moisture.