Thermosetting resinous binder compositions, their preparation, and use as coating materials
申请人:SHELL INTERNATIONALE RESEARCH
MAATSCHAPPIJ B.V.
公开号:EP0012463A1
公开(公告)日:1980-06-25
Theromosetting binder composition for coating, comprising:
(I) (1) A non-acidic resinous compound, saturated, molecular weight at least 900, alcoholic hydroxyl content at least 0.2 eq./100 g;
(2) as cross-linking agent a non-acidic polyester of a polycarboxylic acid, having more than one β-hydroxyl ester group per molecule, at least one of components (1) and (2) having an alcoholic hydroxyl functionality of more than 2, and
(II) as curing catalyst a transesterification-promoting metal salt or complex which is soluble in liquid hydrocarbons.
For aqueous compositions component (I) (1) is preferably a neutralized epoxy resin/amine adduct and component (II) should be insoluble in water; the can be used for cathodic electrodeposition.
涂料用热固性粘结剂组合物,包括
(I) (1) 非酸性树脂化合物,饱和,分子量至少 900,醇羟含量至少 0.2当量/100 克;
(2) 作为交联剂的聚羧酸非酸性聚酯,每个分子具有一个以上的 β-羟基酯基,组分(1)和(2)中至少有一个具有 2 个以上的醇羟基官 能团,以及
(II) 一种可溶于液态烃的促进酯交换反应的金属盐或络合物作为固化催化剂。
对于水性组合物,组分(I)(1)最好是中和的环氧树脂/胺加合物,组分(II)应不溶于水;可用于阴极电沉积。