Nippon Kayaku Kabushiki Kaisha

Masaru Kudou

Masahiro Hirano

Masahiro Imaizumi

Naoyuki Ochi

Eiichi Nishihara

Toyohumi Asano

Makiko Kogo

Yasumasa Akatuka

Naoki Toneda

Kouta Yoshii

Sumio Itimura

A liquid crystal sealing material comprising (a) a radiation curable resin represented by the general formula (1) below, (b) a photopolymerization initiator and (c) a filler having an average particle diameter of not more than 3 &#x3bc;m. (In the formula (1), Rrepresents a hydrogen atom or a methyl group; Rmay be the same or different and represents a hydrogen atom, a halogen atom, a hydroxyl group, a monovalent linear, branched or cyclic alkyl group having 1-10 carbon atoms or an alkoxy group having 1-10 carbon atoms; m represents an integer of 1-4; Rrepresents a hydrogen atom or a methyl group; Rrepresents a linear, branched or cyclic alkyl group having 1-10 carbon atoms; 1 represents a range of positive numbers from 1 to 5; and the repeating unit number n represents a range of positive numbers from 0 to 20.)

Radiation curable resin, liquid crystal sealing material, and liquid crystal display cell using same

To provide a photopolymerization initiator having an extremely low possibility of contaminating liquid crystals, and a liquid crystal sealing material using such a photopolymerization initiator. A liquid crystal sealing material comprising (a) a reactive photopolymerization initiator represented by the general formula (1) and (b) a photocurable resin: (wherein R1 represents a divalent straight chain, branched or cyclic lower alkylene group having 1 to 10 carbon atoms or an arylene group; R2 represents a divalent straight chain, branched or cyclic lower alkylene group having 1 to 10 carbon atoms or an arylene group; Ar represents an arylene group; R3 represents a hydrogen atom or a methyl group; X and Y respectively represent O or S; and Z is a hydroxyl group or a morpholino group).

Liquid crystal sealing material and liquid crystal display cell using same

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Saitama, Japan

Masaru Kudou