AMINE EPOXY RESIN CURING AGENT, GAS BARRIER EPOXY RESIN COMPOSITION COMPRISING THE CURING AGENT, COATING AGENT, AND ADHESIVE AGENT FOR LAMINATE
申请人:Mitsubishi Gas Chemical Company, Inc.
公开号:EP2149586A1
公开(公告)日:2010-02-03
The present invention provides an amine based epoxy resin curing agent containing an epoxy resin and an amine compound capable of imparting a high gas barrier performance and a long pot life, in addition to excellent performances which an epoxy resin conventionally possesses, and an epoxy resin composition with a high gas barrier performance and a long pot life, which contains the subject curing agent. Also, the present invention provides an adhesive for laminate with excellent adhesiveness to various polymers, papers, metals, etc., which contains, as a main component, an epoxy resin composition containing an amine based resin curing agent with a high gas barrier performance and a long pot life.
The amine based epoxy resin curing agent of the present invention is composed of a reaction product of the following (A), (B) and (D) or a reaction product of the following (A), (B), (C) and (D):
(A) m-xylylenediamine or p-xylylenediamine,
(B) a polyfunctional compound having at least one acyl group, which is capable of forming an amide group site through a reaction with a polyamine and forming an oligomer,
(C) a monovalent carboxylic acid having from 1 to 8 carbon atoms and/or its derivative, and
(D) a functional compound having at least one carbonate site represented by the formula (2), which is capable of forming a carbamate site represented by the formula (1) through a reaction with a polyamine:
本发明提供了一种含有环氧树脂和胺化合物的胺基环氧树脂固化剂,该固化剂除了具有环氧树脂通常具有的优异性能外,还能赋予其较高的气体阻隔性能和较长的固化寿命;本发明还提供了一种具有较高气体阻隔性能和较长的固化寿命的环氧树脂组合物,该组合物含有上述固化剂。此外,本发明还提供了一种对各种聚合物、纸张、金属等具有优异粘合性的层压板用粘合剂,该粘合剂的主要成分是环氧树脂组合物,其中含有具有高气体阻隔性能和长固化寿命的胺基树脂固化剂。
本发明的胺基环氧树脂固化剂由以下(A)、(B)和(D)的反应产物或以下(A)、 (B)、(C)和(D)的反应产物组成:
(A) 间羟二胺或对羟二胺、
(B) 具有至少一个酰基的多官能团化合物,该化合物可通过与多胺反应形成酰胺基 位点并形成低聚物、
(C) 具有 1 至 8 个碳原子的一价羧酸和/或其衍生物,以及
(D) 具有至少一个由式(2)表示的碳酸盐位点的官能团化合物,它能通过与多胺反应形成由式(1)表示的氨基甲酸酯位点: