Optical recording medium

Details Optical recording medium Optical recording medium

1992-04-14

1994-05-31

Ryan, Patrick J.

Stock material or miscellaneous articles

Circular sheet or circular blank

Recording medium or carrier

428 65, 428913, 430945, 346 76L, 3461351, 369288, B32B 300

Patent

active

053168135

ABSTRACT:
In an optical recording medium, 4,8-diamino-2-(4-hexyloxyphenyl)-1,5-dihydroxyanthraquinone is used as guest molecules, for an optical recording layer, and a compound expressed by a general formula (1): ##STR1## (where R.sub.1 denotes H or CH.sub.3, R.sub.2 denotes C.sub.2 H.sub.4, C.sub.3 H.sub.6 or C.sub.4 H.sub.8, and n denotes an integer) is used for the host molecules. Since holes are caused in the wavelength region of the semiconductor laser, optical recording can be performed efficiently by using a semiconductor laser.

REFERENCES:
patent: 3896420 (1975-07-01), Szabo
patent: 4101976 (1978-07-01), Castro
patent: 4158890 (1979-06-01), Burland
patent: 4693915 (1987-09-01), Matsuda et al.
patent: 4819206 (1989-04-01), Yoshiimura
patent: 5032973 (1991-07-01), Yoshimura
IBM J. Res. Develop., vol. 26, No. 2, Mar. 1982.

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