申请人:ALLNEX AUSTRIA GmbH
公开号:EP3689986A1
公开(公告)日:2020-08-05
The invention relates to an aqueous polymer dispersion wherein the dispersed polymer U comprises Michael donor groups, and is an externally emulsified polymer UE or a self-emulsifying polymer US, wherein the Michael donor groups are acidic C-H groups from activated methylene and/or methine groups, to a mixture thereof with compounds having Michael acceptor groups which are activated olefinically unsaturated groups, activated by an electron-withdrawing group, and a catalyst to promote the Michael reaction, to a paint binder prepared from the mixture and the catalyst, and to coating compositions comprising the paint binder and appropriate additives.
本发明涉及一种水性聚合物分散体,其中分散的聚合物 U 包含迈克尔供体基团,并且是一种外部乳化聚合物 UE 或自乳化聚合物 US,其中迈克尔供体基团是来自活化亚甲基和/或甲基的酸性 C-H 基团、与具有迈克尔受体基团的化合物的混合物,该受体基团是活化的烯烃不饱和基团,由电子抽离基团活化,以及促进迈克尔反应的催化剂;与由混合物和催化剂制备的涂料粘合剂;以及与包含涂料粘合剂和适当添加剂的涂料组合物。