Compositions – Light transmission modifying compositions – Infrared
Patent
1997-11-06
1999-02-09
Tucker, Philip
Compositions
Light transmission modifying compositions
Infrared
252582, 359885, F21V 904, F21V 900, G02B 522
Patent
active
058689680
ABSTRACT:
A polyimide resin composition for an optical filter which includes a colorless transparent polyimide resin containing at least one perfluoroalkyl group in each recurring structural unit and having excellent solvent solubility, and at least one dyestuff soluble in said resin. The dyestuff has absorption in the visible range and/or the near infrared range. A printing ink for an optical filter is composed of the polyimide resin composition and a solvent while an optical filter formed from a transparent base material and the polyimide resin composition can also be provided.
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Patent Abstracts of Japan, vol. 012, No. 028 (C-471), 27 Jan. 1988 & JP-A-62179565 (Nitto Electric Ind. Co. Ltd.), 6 Aug. 1987 *abstract*.
Patent Abstracts of Japan, vol. 013, No. 589 (C-670), 25 Dec. 1989 & JP-A-01247461 (Japan Synthetic Rubber Co. LTD.), 3 Oct. 1989 *abstract*.
Patent Abstracts of Japan, vol. 012, No. 012 (P-684), 5 Apr. 1988 & JP-A-62234104 (KYODO Printing Co. Ltd.) 14 Oct. 1987 *abstract*.
Misawa Tsutami
Seino Kazuhiro
Takuma Keisuke
Tamai Shoji
Yamashita Wataru
Mitsui Chemicals Inc.
Tucker Philip
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