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    • 6. 发明授权
    • Epoxy resin composition
    • 环氧树脂组合物
    • US4500660A
    • 1985-02-19
    • US486177
    • 1983-04-18
    • Tsuyoshi MinamisawaYasuo KogoYasuhisa Nagata
    • Tsuyoshi MinamisawaYasuo KogoYasuhisa Nagata
    • C08G59/00C08G59/12C08G59/18C08G59/22C08G59/38C08G59/40C08G59/50C08G59/62C08J5/24C08L7/00C08L21/00C08L33/00C08L33/02C08L63/00C09J163/00C08K7/06C08L63/02C08L63/04C08L63/10
    • C08J5/24C08G59/12C08G59/226C08G59/38C08L63/00C08J2363/00Y10S525/911
    • An epoxy resin composition having excellent adhesive and high mechanical strength is disclosed. The composition comprises:(A) a bisphenol A type epoxy resin present in an amount of at least 45 wt % of the total epoxy resin;(B) a novolak type epoxy resin present in an amount of at least 8 wt % of the total epoxy resin;(C) a glycidyl amine type epoxy resin (including the one used in (D)) present in an amount of at least 15 wt % of the total epoxy resin;(D) a reaction product of a butadiene-acrylonitrile copolymer having carboxyl groups on at least both ends of the molecule and a glycidyl amine type epoxy resin, said butadiene-acrylonitrile copolymer being present in an amount of 1.5 to 15 parts by weight per 100 parts by weight of the total epoxy resin;(E) nitrile rubber present in an amount of 2 to 8 parts by weight per 100 parts by weight of the total epoxy resin; wherein the total epoxy resin is the total amount of epoxy resins (A), (B) and (C), as well as the glycidyl amine type epoxy resin used in preparing component (D);(F) a curing agent consisting of dicyandiamide;(G) a curing accelerator, and(H) a reinforcing fiber to form a composition which exhibits good performance when it is used as a prepreg for composite.
    • 公开了具有优异的粘合性和高机械强度的环氧树脂组合物。 所述组合物包含:(A)以总环氧树脂的至少45重量%的量存在的双酚A型环氧树脂; (B)以总环氧树脂的至少8重量%的量存在的酚醛清漆型环氧树脂; (C)存在量为总环氧树脂的至少15重量%的缩水甘油胺型环氧树脂(包括(D)中使用的)环氧树脂; (D)在分子的至少两端具有羧基的丁二烯 - 丙烯腈共聚物和缩水甘油胺型环氧树脂的反应产物,所述丁二烯 - 丙烯腈共聚物的存在量为每100重量份为1.5〜15重量份 总环氧树脂重量份; (E)丁腈橡胶,其总量为每100重量份总环氧树脂2至8重量份; 其中总环氧树脂是环氧树脂(A),(B)和(C)的总量,以及用于制备组分(D)的缩水甘油胺型环氧树脂。 (F)由双氰胺组成的固化剂; (G)固化促进剂和(H)增强纤维,以形成当用作复合材料的预浸料时表现出良好性能的组合物。