Compact disk-write once type optical recording media

Details Compact disk-write once type optical recording media Compact disk-write once type optical recording media

G - Physics

11

B

352/32.4

G11B 7/24 (2006.01) G11B 7/247 (2006.01) G11B 7/248 (2006.01)

Patent

CA 2039522

The invention discloses a CD-WO type optical recording medium which has a constitution obtained by successively laminating a recording layer, a metal re- flection layer and a protective layer; is prepared by using in the recording layer a colorant having a melting point of 150 to 300°C, decomposition initiating tempera- ture of 200 to 350 °C, and .lambda. max of 720 nm; and has high sensitivity, low recording distortion and high durabili- ty. The colorant can be enhanced its effect by introduc- ing halogen atoms.

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