申请人:NIPPON PAINT CO., LTD.
公开号:EP0387831A2
公开(公告)日:1990-09-19
Disclosed is a resin composition curable at low temperature comprising,
(A) epoxy resins having an epoxy equivalence of 100 to 4,000;
(B) α-ketoester compounds expressed by the following formula;
R-(X---O-R₁)
[wherein R is an organic group having a molecular weight of 1 to 100,000, X is a carbon, oxygen- or sulfur atom and -NR₂, R₁ and R₂ are independently an alkyl-, alkenyl-, alkynyl-, aryl-, alalkyl-, alkaryl-, cychloalkyl- and heterocyclic group, and n is an integer of 1 or more.] and
(C)polyamine compound or polyamide compound having a primary and/or secondary amino group;
a solid weight ratio of the components (A) and (B) meeting the following relation;
(A)/(B)=99/1 to 5/95
and an epoxy equivalent of the component (A), and α-ketoester equivalent of the component (B) and an active hydrogen equivalent of the component (C) meeting the following relation;
(A)+(B)/(C)= 100/10 to 100/200.
公开了一种可在低温下固化的树脂组合物,其中包括
(A) 环氧当量为 100 至 4000 的环氧树脂;
(B) 下式表示的α-酮酯化合物;
R-(X---O-R₁)
[其中 R 是分子量为 1 至 100,000 的有机基团,X 是碳原子、氧原子或硫原子,-NR₂、R₁ 和 R₂ 独立地是烷基、烯基、炔基、芳基、烷基、芳烷基、烷芳基、环烷基和杂环基团,n 是 1 或 1 以上的整数。
(C) 具有伯氨基和/或仲氨基的多胺化合物或聚酰胺化合物;
成分(A)和(B)的固体重量比符合以下关系;
(A)/(B)=99/1 至 5/95
组分(A)的环氧当量、组分(B)的α-酮酯当量和组分(C)的活性氢当量符合以下关系;
(A)+(B)/(C)= 100/10 至 100/200。