C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/275.3
C07D 471/04 (2006.01) G03C 1/73 (2006.01) G03F 7/031 (2006.01) G11B 7/244 (2006.01)
Patent
CA 2014554
ABSTRACT OF THE DISCLOSURE An organic photochromic compound with improved long term preservability, thermal stability, the repetition character of the record and the like and useful as recording-memory materials or photosensitizers, comprising the compound selected from pyrido[3,4-g]isoquinoline, pyrido[2,3-g]quinoline, pyrido[3,2-glquinoline and pyrido[3,2-g]quinoline derivatives.
Hidaka Takahiro
Nomura Shigeru
Riches Mckenzie & Herbert Llp
Sekisui Kagaku Kogyo Kabushiki Kaisha
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