An object of the invention is to provide a sealant composition for a plastic liquid crystal display cell that is capable of being applied to a sheet heat press adhesion method and of producing a plastic liquid crystal display cell having high reliability under a high temperature and high humidity environment. A two-component sealant composition for a plastic liquid crystal display cell of the invention contains the following components (1) to (6):
(1) from 15 to 84% by weight of a liquid epoxy resin having from 1.7 to 6 in weight average of epoxy groups in one molecule and an ionic conductivity of an aqueous solution obtained by extraction separation by contact mixing with 10 times by weight of pure water at from 40 to 80° C. of 2 mS/m or less,
(2A) from 10 to 50% by weight of a curing agent containing one or a mixture of two or more selected from (2A-1) a tetrafunctional mercapto compound or (2A-2) a modified polymercapto derivative, having an ionic conductivity of an aqueous solution obtained by extraction separation by contact mixing with 10 times by weight of pure water at from 40 to 80° C. of 0.6 mS/m or less,
(3) from 0.01 to 15% by weight of a curing accelerator,
(4) from 5 to 50% by weight of an inorganic filler,
(5) from 0.1 to 5% by weight of a silane coupling agent, and
(6) from 1 to 25% by weight of rubbery polymer fine particles having a softening temperature of 0° C. or less and an average particle diameter of primary particles of from 0.01 to 5 &mgr;m.
本发明的目的是提供一种用于塑料液晶显示电池的密封剂组合物,该组合物能够应用于片材热压粘合方法,并能在高温高湿环境下生产出具有高可靠性的塑料液晶显示电池。本发明用于塑料液晶显示电池的双组分密封剂组合物含有以下成分(1)至(6):
(1) 15%至 84%(按重量计)的液态环氧
树脂,其一个分子中的环氧基的平均重量为 1.7 至 6,在 40 至 80 摄氏度的条件下,通过与 10 倍(按重量计)的纯
水接触混合进行萃取分离而获得的
水溶液的离子电导率为 2 mS/m 或更低、
(2A) 10%至 50%(重量)的固化剂,其中含有选自(2A-1)四官能巯基化合物或 (2A-2)改性聚合巯基衍
生物中的一种或两种以上的混合物,其
水溶液的离子电导率为 0.6 mS/m 或更低、
(3) 0.01 至 15%(重量)的固化
促进剂、
(4) 以重量计,5%至 50%的无机填料、
(5) 0.1 至 5%(重量)的
硅烷偶联剂,以及
(6) 1%至 25%(重量百分比)的橡胶聚合物细颗粒,其软化温度为 0°C 或更低,主颗粒的平均颗粒直径为 0.01 至 5 微米。