Radiation imagery chemistry: process – composition – or product th – Liquid crystal process – composition – or product
Patent
1989-11-13
1991-05-28
Bowers, Jr., Charles L.
Radiation imagery chemistry: process, composition, or product th
Liquid crystal process, composition, or product
430 19, 430495, 430945, 428 64, 428 1, 3461351, G02F 113, C09K 1902
Patent
active
050194763
ABSTRACT:
An optical recording medium such as an optical disk, which is capable of reversibly repeating a recording/erasing cycle. This optical recording medium comprises a transparent substrate and recording layer formed on the substrate. This recording layer comprise a liquid crystalline high polymer having side chains and a dyestuff having a recording-light absorbing property. The side chain may preferably comprises mesogen group, a monocyclic or polycyclic compound such as phenyl, benzyl, naphthyl or anthryl group, and alkyl or aryl group having 1 to 18 carbon atoms.
REFERENCES:
patent: 4702945 (1987-10-01), Etzbach et al.
patent: 4752820 (1988-06-01), Kuroiwa et al.
patent: 4857427 (1989-08-01), Itoh et al.
Kanehira Jun
Kanno Toshiyuki
Kondo Seiji
Nagata Yasuji
Takahashi Hideshi
Bowers Jr. Charles L.
Olympus Optical Co,. Ltd.
Pezzner Ashley I.
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