申请人:SUMITOMO CHEMICAL COMPANY, LIMITED
公开号:EP0055632A1
公开(公告)日:1982-07-07
Modified epoxy resin composition having excellent flexibility and excellent compatibility with conventional epoxy resins as well as the original properties of the epoxy resin before modified such as mechanical strength, adhesion, heat resistance and chemical resistance, which is obtained by treating an epoxy resin with at least one modified adduct [D] of a conjugated diene polymer or copolymer which has an imido bond and/or amido bond and a semi-ester structure and has an acid value owing to a free carboxyl group of 5 to 100, the modified adduct being obtained by reacting an adduct [A] of a polymer of a conjugated diene having a number average molecular weight of 300 to 20,000 or a copolymer of the conjugated diene and a vinyl monomer with an α,β-unsaturated dicarboxylic acid or its anhydride, with a compound [B] containing one primary amino group in the molecule and a compound [C] containing a hydroxy group in the molecule.
改性环氧树脂组合物,具有优异的柔韧性和与传统环氧树脂优异的相容性,以及改性前环氧树脂的原有性能,如机械强度、粘合性、耐热性和耐化学性,该组合物是用至少一种共轭二烯聚合物或共聚物的改性加合物[D]处理环氧树脂而得到的,共轭二烯聚合物或共聚物具有亚氨基键和/或氨基键和半酯结构,由于游离羧基而具有 5 至 100 的酸值、该改性加合物是将平均分子量为 300 至 20,000 的共轭二烯聚合物或共轭二烯与乙烯基单体的共聚物与α,β-不饱和二羧酸或其酐的加合物[A],与分子中含有一个伯氨基的化合物[B]和分子中含有一个羟基的化合物[C]反应而得到的。