申请人:——
公开号:US20030207104A1
公开(公告)日:2003-11-06
The invention relates to a coating composition comprising an acetal-functional binder and a thiol-functional cross-linker, wherein the acetal-functional binder is represented by the following formula
1
wherein P is a binder backbone, K is a divalent and/or trivalent organic moiety having 1 to 30 carbon atoms and having one or two links to the binder backbone, A is selected from oxygen, sulphur, and NR
VII
, wherein R
VII
is hydrogen or an alkyl group with 1 to 4 carbon atoms, m is an integer from 1 to 50, n is an integer from 1 to 10, and R and R′ may be the same or different and represent alkyl groups with 1 to 4 carbon atoms. In a further aspect, the invention relates to acetal-functional binders, acetal-functional monomers, a process for the preparation of said monomers, coating compositions comprising said acetal-functional binders, and to a process for the preparation of a coating composition comprising an acetal-functional polyurethane dispersion and a thiol-functional cross-linker.
本发明涉及一种涂层组合物,包括一个醛缩功能粘合剂和一个硫醇交联剂,其中所述醛缩功能粘合剂由以下公式1表示:
其中,P是粘合剂骨架,K是一种具有1至30个碳原子并且具有一到两个链接到粘合剂骨架的二价和/或三价有机基团,A选自氧、硫和NRVII,其中RVII是氢或具有1至4个碳原子的烷基基团,m是1至50的整数,n是1至10的整数,R和R'可以相同或不同,代表具有1至4个碳原子的烷基基团。此外,本发明还涉及醛缩功能粘合剂、醛缩功能单体、制备所述单体的方法、包括所述醛缩功能粘合剂的涂层组合物,以及制备包括醛缩功能聚氨酯分散体和硫醇交联剂的涂层组合物的方法。