Patent ID: 6555187
Filing Date: 2003-04-29
Classification: C08L,C09K,G02F,Y10T

Abstract:
A liquid crystal sealant composition comprising an epoxy resin composition, wherein(a) an aqueous solution obtained by admixing said composition with the same mass of purified water has an ionic conductivity of 1 mS/m or less and (b) a coated material obtained by coating said epoxy resin composition in a thickness of 50 &mgr;m and subjecting it to heat treatment at 80 to 100Â° C. for 20 minutes is in B-stage and has a viscosity of 50 to 10000 PaÂ·s at 80 to 100Â° C. by an E type viscometer; and in a cured matter of the epoxy resin composition, (c) the cured matter of the composition has a linear expansion coefficient of 10Ã—10âˆ’5 mm/mm/Â° C. or less at 0Â° C. to 100Â° C., which is determined by means of a thermomechanical analyzer (TMA), (d) the cured matter of the composition has a glass transition temperature Tg of 100Â° C. or higher, which is determined by means of a thermomechanical analyzer (TMA), and (e) a cured matter having a thickness of 100 &mgr;m which is formed from said composition has a moisture permeability of 200 g/m2Â·24 hours or less at 80Â° C. at which moisture passes through said cured matter.