Stock material or miscellaneous articles – Liquid crystal optical display having layer of specified...
Patent
1998-12-22
2000-06-13
Wu, Shean C.
Stock material or miscellaneous articles
Liquid crystal optical display having layer of specified...
428 12, 25229901, 2522994, 349183, 522183, 568835, 430923, C09K 1938, C09K 1952, C08F 250, G02F 11333
Patent
active
060747080
ABSTRACT:
A photoinitiator is represented by general formula (I): ##STR1## where n is an integer of 1 or greater; A and B are each a trans cyclohexane ring or a benzene ring, the benzene ring being allowed to include a fluorine atom or a methyl group as a substituent, the benzene ring adjacent to a carbonyl group being allowed to include a fluorine atom or a methyl group as a substituent; p and q are each 0 or 1, p and q are not simultaneously 0; X is an alkyl group of C.sub.1 through C.sub.3 or hydrogen atom, Y is a methyl group, ethyl group or alkoxy group of C.sub.1 through C.sub.3, and Z is a methyl group, ethyl group, alkyl-substituted phenyl group or a group represented by general formula (II), Y and Z being allowed to bonded together to form a ring: ##STR2## where A, B, n, p and q are identical with those in general formula (I).
REFERENCES:
patent: 5073294 (1991-12-01), Shannon et al.
patent: 5518652 (1996-05-01), Parri et al.
Caplus 1995:233204
Caplus 1992:184455
Caplus 1999:327102
Matsunaga Daisaku
Miyazaki Aya
Onishi Noriaki
Ozaki Touru
Nippon Kayaku Co. Ltd.
Sharp Kabushiki Kaisha
Wu Shean C.
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