Laser information recording medium having an improved recording

Details Laser information recording medium having an improved recording Laser information recording medium having an improved recording

1986-10-14

1988-08-30

Michl, Paul R.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

430 19, 430944, 430945, 3461351, G11B 724, G01D 900, G03C 172, G03C 516

Patent

active

047676965

ABSTRACT:
A laser information recording medium comprising a substrate, a reflective layer and a recording layer. The recording layer is made of cumulative sub-layers of J-aggregates of an organic dye having an absorption band in the wavelength range of oscillation of the laser and an anionic film-forming material. The cumulative sub-layers may be formed by the Langmuir-Blodgett thin film method. The recording layer may also consist of a plurality of layers containing organic dyes having different absorption peaks of wavelength in their respective sub-layers. The organic dyes are preferably cyanine dyes of a specific type and the cationic film-forming material is preferably a mixture of at least two members of the group consisting of dioctadecyldimethylammonium chloride, octadecylamine and methyl stearate.

REFERENCES:
patent: 4618561 (1986-10-01), Munakata et al.
patent: 4652514 (1987-03-01), Abe et al.
"Insoluble Monolayers at Liquid-Gas Interface" by G. L. Gaines, 1966, pp. 228-233.

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