Stock material or miscellaneous articles – Circular sheet or circular blank – Recording medium or carrier
Patent
1991-07-18
1993-03-23
Ryan, Patrick J.
Stock material or miscellaneous articles
Circular sheet or circular blank
Recording medium or carrier
428 65, 428457, 428913, 346 76L, 3461351, 369283, 369288, 430270, 430945, B32B 300
Patent
active
051962500
ABSTRACT:
An optical information recording medium is composed of a substrate and a recording layer which includes a diarylpolyene compound of formula (I): ##STR1## wherein A.sup.1 and A.sup.2 each independently represent an aryl group which may have a substituent; R.sup.1 and R.sup.2 each represent hydrogen, a halogen or an alkyl group having 1 to 4 carbon atoms; and n is an integer of 2 or more.
REFERENCES:
patent: 3947337 (1976-03-01), Peters, Jr.
patent: 4954841 (1990-09-01), Ichihara
Abe Michiharu
Umehara Masaakira
Evans Elizabeth
Ricoh & Company, Ltd.
Ryan Patrick J.
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