(19)
(11) EP 1 788 424 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
published in accordance with Art. 158(3) EPC

(15) Correction information:
Corrected version no 1 (W1 A1)

(48) Corrigendum issued on:
25.07.2007 Bulletin 2007/30

(43) Date of publication:
23.05.2007 Bulletin 2007/21

(21) Application number: 05776855.8

(22) Date of filing: 31.08.2005
(51) International Patent Classification (IPC): 
G02F 1/1339(2006.01)
C08F 290/06(2006.01)
 C08F 2/50(2006.01)
(86) International application number:
PCT/JP2005/015893
(87) International publication number:
WO 2006/027982 (16.03.2006 Gazette 2006/11)
(84) Designated Contracting States:
FR

(30) Priority: 06.09.2004 JP 2004258062

(71) Applicant: NIPPON KAYAKU KABUSHIKI KAISHA
Tokyo 102-8172 (JP)

(72) Inventors:
  • OCHI, Naoyuki
    Saitama-shi, Saitama 3300835 (JP)
  • ASANO, Toyohumi
    Saitama-shi, Saitama 3380001 (JP)
  • IMAIZUMI, Masahiro
    Tokyo 1150052 (JP)
  • KUDOU, Masaru
    Saitama-shi, Saitama 3370017 (JP)
  • NISHIHARA, Eiichi
    Tokyo 1150042 (JP)
  • HIRANO, Masahiro
    Ageo-shi-shi, Saitama 3620001 (JP)
  • YOSHII, Kouta
    Saitama-shi, Saitama 3300835 (JP)
  • ITIMURA, Sumio
    Tokyo 1150042 (JP)
  • KOGO, Makiko
    Saitama-shi, Saitama 3360042 (JP)

(74) Representative: Gille Hrabal Struck Neidlein Prop Roos 
Brucknerstrasse 20
D-40593 Düsseldorf
D-40593 Düsseldorf (DE)

   


(54) LIQUID CRYSTAL SEALING MATERIAL AND LIQUID CRYSTAL DISPLAY CELL USING SAME


(57) [PROBLEMS] 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.
[MEANS FOR SOLVING PROBLEMS] 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).