Stock material or miscellaneous articles – Circular sheet or circular blank – Recording medium or carrier
Patent
1989-07-25
1990-07-31
Ryan, Patrick
Stock material or miscellaneous articles
Circular sheet or circular blank
Recording medium or carrier
428 65, 428199, 4284111, 428913, 430270, 430945, 346 11, 346 76L, 3461351, 369288, B32B 300
Patent
active
049449800
ABSTRACT:
An optical recording material having excellent light stability, shelf stability and solubility in a solvent comprises, as an indispensable constituent, a compound of the following general formula: ##STR1## wherein R represents a cycloalkyl group having 3 to 12 carbon atoms, X.sup.- represents a halide anion, a perchlorate anion or a quencher anion, rings A and B each represent a benzene or naphthalene ring which may be substituted with a halogen atom, and n represents 1 to 4.
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Akutsu Mitsuo
Iwakura Syuji
Oya Keiji
Adeka Argus Chemical Co. Ltd.
Ryan Patrick
LandOfFree
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