Epoxy resin curing agent, epoxy resin composition, and adhesive agent for laminate

摘要

Provided are an epoxy resin curing agent having excellent properties and high gas barrier capability that epoxy resin has and, in addition thereto, capable of realizing good adhesiveness to polyester and aluminum; an epoxy resin composition containing the curing agent; an adhesive for lamination including the composition as the main ingredient thereof; and a laminate film, a multilayer wrapping material and a wrapping bag using the adhesive. The epoxy resin curing agent comprises a reaction product of the following (A), (B) and (C): (A) meta-xylylenediamine or para-xylylenediamine, (B) a polyfunctional compound having one acyl group and capable of forming an amide group moiety through reaction with a polyamine and forming an oligomer, (C) a metal (meth)acrylate salt with a divalent or more polyvalent metal.

主权项

1. A laminate film produced by the use of an adhesive for lamination comprising an epoxy resin composition as the main ingredient thereof,
wherein the epoxy resin composition contains an epoxy resin and an epoxy resin curing agent, and wherein the epoxy resin curing agent comprises a reaction product of the following (A), (B) and (C):(A) meta-xylylenediamine or para-xylylenediamine,(B) a polyfunctional compound having one acyl group and capable of forming an amide group moiety through reaction with a polyamine and forming an oligomer,(C) a metal acrylate salt with a divalent metal,wherein a reaction molar ratio of (C) to (A) ((C)/(A)) is from 0.05 to 0.35; anda reaction molar ratio of (B) and (C) to (A) (((B)+(C))/(A)) is within a range of from 0.6 to 0.97;and wherein a lamination strength of the laminate film produced when using a stretched nylon film as the substrate and by using of the adhesive is at least 200 g/15 mm.