Squarylium compound and optical information recording medium usi

Details Squarylium compound and optical information recording medium usi Squarylium compound and optical information recording medium usi

1993-04-23

1995-02-21

Tsang, Cecilia

Organic compounds -- part of the class 532-570 series

Organic compounds

Nitrogen attached directly or indirectly to the purine ring...

544234, 546 17, 546101, 546165, 546166, 430495, C07D47100, C07D22106, C07D21500

Patent

active

053917413

ABSTRACT:
There are described a novel squarylium compound represented by the formula (I): ##STR1## and an optical information recording medium using the squarylium compound in the recording layer.

REFERENCES:
patent: 5085909 (1992-02-01), Satoh et al.
patent: 5149819 (1992-09-01), Satoh et al.
"Preparation of squarylium compounds and optical recording media using them", Tsutomo Sato et al., Chemical Abstracts, vol. 116, 1992, Abstract No. 95903x.
"Optical recording medium using optical interference on recording layer interface", Tsutomu Sato et al., Chemical Abstracts, vol. 114, 1991, Abstract No. 52947f.
"Optical recording media", Tatsuya Sakaeda et al., Chemical Abstracts, vol. 114, 1991, Abstract No. 33199x.
"Optical recording media", Takeshi Santo et al., Chemical Abstracts, vol. 116, 1992, Abstract No. 72474u.
"Methine dyes", Akira Tanaka et al., Chemical Abstracts, vol. 117, 1992, Abstract No. 132904s.

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