Master disc

Details Master disc Master disc

1991-11-25

1994-04-19

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Radiation sensitive composition or product or process of making

430495, 430944, 430945, 3461351, 369288, G11B 724

Patent

active

053044550

ABSTRACT:
A master disc for the manufacture of copies which in turn are used for the manufacture of further copies in the form of optically readable information carriers, the master disc comprising a substrate disc which is provided with an optical recording layer which comprises a nitrocellulose binder as well as a dye which is dissolved or finely dispersed in said binder, the dye being a squarylium dye which is used in a quantity of 1-15 wt. % of the binder.

REFERENCES:
patent: 4430401 (1984-02-01), Wilinson
patent: 4508811 (1985-04-01), Gravesteijn et al.
patent: 4944967 (1990-07-01), Yabe et al.
patent: 5099469 (1992-03-01), Dobbin et al.
patent: 5190849 (1993-03-01), Santoh
English language abstract of JP 01-190494, Fuji Photo Film KK, "Laser Beam Recording Material", Jul. 1989.
English language abstract of JP 59-198191, TDK Corp., "Optical Recording Medium", Nov. 1984.
English language abstract of JP 58-112792, Ricoh KK, "Light Information Recording Component", Jul. 1983.

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