申请人:NIPPON KAYAKU KABUSHIKI KAISHA
公开号:EP1612597A1
公开(公告)日:2006-01-04
The present invention relates to a sealant for liquid crystals having extremely low contamination nature to a liquid crystal, excellent coatability and bondability to a substrate, long service life and pot life and high adhesive strength. A sealant for liquid crystals of the present invention is characterized by comprising (a) an epoxy resin represented by general formula (1):
(wherein a represents an integer of 2 to 4; n represents 0 to 3 (average value); R represents a divalent hydrocarbon group of 2 to 6 carbon atoms; A represents a polyvalent aromatic group; and G represents a glycidyl group, provided that when n is 0, (a) an epoxy resin represented by general formula (1) is a bisphenol S-type.), (b) a thermo-curing agent, (c) and a filler having average particle diameter of not larger than 3 µm.
本发明涉及一种液晶密封剂,该密封剂对液晶的污染性极低,对基材的涂覆性和粘结性极好,使用寿命和罐装寿命长,粘接强度高。本发明的液晶密封剂的特点是包括 (a) 由通式(1)表示的环氧树脂:
(其中,a 代表 2 至 4 的整数;n 代表 0 至 3(平均值);R 代表 2 至 6 个碳原子的二价烃基;A 代表多价芳香族基团;G 代表缩水甘油基团,但当 n 为 0 时,通式(1)所代表的环氧树脂为双酚 S 型);(b)热固化剂;(c)以及平均粒径不大于 3 微米的填料。