CURABLE COMPOSITION BASED ON POLYMERS CONTAINING SILANE GROUPS AND ON A ZINC CATALYST
申请人:SIKA TECHNOLOGY AG
公开号:US20160152760A1
公开(公告)日:2016-06-02
Composition including at least one polymer containing silane groups and at least one zinc(II) complex compound of Zn
k
(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 R
4
or polyoxyalkylene group or group of polyoxyalkylated compound optionally having one or two terminal 1,3-ketoamide groups, R
1
and R
2
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; R
3
and R
4
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 Zn
k
(L)
x
(Y)
2k-nx
as a catalyst for the cross-linking of polymers containing silane groups by means of moisture.
该组合物包括至少一种含有硅烷基团聚合物和至少一种Znk(L)x(Y)2k-nx的锌(II)配合物,其中k为1-10的整数,x为1、2、3或4,n对应于配体L,Y为具有-1电荷的配体,L为具有n个配体的配体,n为1、2或3,A为R4或聚氧烷基团或聚氧烷基化合物的基团,可选地具有一个或两个端部1,3-酮酰胺基团,R1和R2是氢残基或具有1-10个碳原子的单价饱和或不饱和碳氢化合物基团,彼此独立或共同具有3-6个碳原子的双价烷基基团;R3和R4是氢残基或具有1-12个碳原子的单价饱和碳氢化合物基团,彼此独立,碳氢基团可选地含有一个或多个杂原子,或共同具有3-6个碳原子的双价烷基基团,该烷基基团可选地含有一个或多个杂原子。本发明还涉及使用式Znk(L)x(Y)2k-nx的锌(II)配合物作为催化剂,通过水分交联含有硅烷基团的聚合物。