申请人:Kaneka Corporation
公开号:EP3660093A1
公开(公告)日:2020-06-03
The object of the present invention is to provide an epoxy resin composition and a cured product therefrom having excellent toughness, high flexural modulus, and high flexural strength, without deteriorating heat resistance. The present invention relates to an epoxy resin composition containing a polyol (A) having a hydroxyl value of 130 to 600 mgKOH/g, an epoxy resin (B), an amine curing agent (C), and a toughener (D), wherein the epoxy resin composition satisfies the following numerical formulas (1) and (2) when a total amount of the polyol (A), the epoxy resin (B), the amine curing agent (C), and the toughener (D) is 100 % by weight; wherein in the following numerical formulas, Wp represents % by weight of the polyol (A), and Wt represents % by weight of the toughener (D). 0.1≦Wt2/Wp≦8.0 0.1≦Wp≦8.0
本发明的目的是提供一种环氧树脂组合物及其固化产品,该环氧树脂组合物和固化产品具有优异的韧性、高弯曲模量和高弯曲强度,且不降低耐热性。本发明涉及一种环氧树脂组合物,该组合物含有羟值为 130 至 600 mgKOH/g 的多元醇 (A)、环氧树脂(B)、胺固化剂(C)和增韧剂(D),其中当多元醇(A)、环氧树脂 (B)、胺固化剂(C)和增韧剂(D)的总用量为 100%(重量百分比)时,该环氧树脂组合 物满足以下数值公式(1)和(2);在以下数字公式中,Wp 代表多元醇 (A) 的重量百分比,Wt 代表增韧剂 (D) 的重量百分比。0.1≦Wt2/Wp≦8.0 0.1≦Wp≦8.0