Stock material or miscellaneous articles – Liquid crystal optical display having layer of specified... – With charge transferring layer of specified composition
Patent
1995-06-07
1997-06-03
Lee, Helen
Stock material or miscellaneous articles
Liquid crystal optical display having layer of specified...
With charge transferring layer of specified composition
428413, 428417, 523400, 349153, C08L 6310, C09K 1900
Patent
active
056352590
ABSTRACT:
A resin composition for sealing liquid crystal cells comprising as principal ingredients epoxy resin containing a polysulfide modified epoxy resin, hydrazide compounds and fillers.
The said epoxy resin contains a polysulfide modified epoxy resin expressed by the general formula (1) in an amount of 20 to 100% by weight in the entire epoxy resin and the average molecular weight of the entire epoxy resin is between 300 and 3000. Formula (1) is defined as follows: ##STR1## where each of R.sup.1 and R.sup.3 represents at least one organic group selected from a group consisting of bisphenol structures, aliphatic oxyether structures and aliphatic thioether structures and R.sup.2 represents a polysulfide structure expressed by --(C.sub.2 H.sub.4 OCH.sub.2 OC.sub.2 H.sub.4 S.sub.m).sub.n --, wherein m represents the number of sulfur atoms contained in a polysulfide structure, which is 1 or 2, and n represents the average number of polysulfide structures contained in the above formula, which is between 1 and 50.
A film-made liquid crystal cell made by using the resin composition is excellent in adhesion, flexibility, electric properties and has high reliability.
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Horiuchi Masayuki
Itami Seiji
Machida Koichi
Tahara Syuji
Lee Helen
Mitsui Toatsu Chemicals Inc.
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