Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product
Patent
1989-10-11
1991-05-07
Michl, Paul R.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
430270, 430945, 428 64, 3461351, G03C 100, G03C 1492, G01D 900, B32B 1302
Patent
active
050136348
ABSTRACT:
An optical information recording medium is disclosed, which comprises a substrate and an organic recording layer formed thereon comprising a polymethine dye and a dithiolate transition metal complex compound having formula (I): ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 each independently represent hydrogen, a halogen, an alkyl group having 1 to 6 carbon atoms, or a perfluoroalkyl group having 1 to 6 carbon atoms; R.sup.4 and R.sup.5 each independently represent hydrogen, an alkyl group having 1 to 6 carbon atoms, an aryl group or a cyano group, which may form a heterocyclic ring; X represents a cation; M represents a transition metal; n is an integer of 0 to 2, which represents the valence number of the transition metal; and m represents the number of cations, which is an integer of 0 to 2, corresponding to the valence number of the transition metal. Furthermore, novel dithiolate nickel complex compounds for use in the optical information recording medium are disclosed.
REFERENCES:
patent: 4707430 (1987-11-01), Ozawa et al.
patent: 4891305 (1990-01-01), Oba et al.
Michl Paul R.
Pezzner Ashley I.
Ricoh & Company, Ltd.
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