申请人:National Starch and Chemical Corporation
公开号:EP0170095A2
公开(公告)日:1986-02-05
Shelf-stable, one-package aqueous latices, which are curable with or without the application of heat, consist essentially of an alkalinecurable, self-crosslinking emulsion polymer, selected organic metal salts, and water. The alkali, alkaline earth, or heavy metal salts of C1-C6 organic acids (e.g., sodium acetate) are post-added to the polymer emulsion or present during the polymerization. The polymer typically comprises about 90-99.9% by weight of one or more vinyl polymerizable monomers (e.g., acrylates, vinyl esters, and ethylene) and 0.1-10% by weight of a polymerizable non-ionic or cationic self-crosslinking monomer containing halohydrin groups (e.g., 3-chloro-2-hydroxypropyl (meth) acrylate or the reaction product of epichlorohydrin and N,N-dimethylaminopropyl methacrylamide or methacrylate).
货架稳定的单组分水性乳胶漆可加热或不加热固化,主要由可碱化的自交联乳液聚合 物、选定的有机金属盐和水组成。C1-C6 有机酸的碱、碱土或重金属盐(如醋酸钠)可在聚合物乳液中添加或在聚合过程中存在。聚合物通常包括约 90-99.9% (按重量计)的一种或多种乙烯基可聚合单体(如丙烯酸酯、乙烯酯和乙烯)和 0.1-10% (按重量计)的含有卤代水杨酸基团的可聚合非离子或阳离子自交联单体(如 3-氯-2-羟丙基(甲基)丙烯酸酯或环氧氯丙烷与 N,N-二甲基氨基丙基甲基丙烯酰胺或甲基丙烯酸酯的反应产物)。