Optical recording medium

Details Optical recording medium Optical recording medium

1992-04-02

1993-08-24

Ryan, Patrick J.

Plant husbandry

428 65, 428195, 4284111, 428457, 428913, 430945, 346 76L, 3461351, B32B 300

Patent

active

052387232

ABSTRACT:
An optical recording medium, comprising: a light transparent substrate, a light absorbing layer disposed on the light transparent substrate, a light reflection layer disposed on the light absorbing layer, and a protection layer disposed on the light reflection layer, wherein the protection layer has been formed by curing a photo-setting resin which is capable of providing a glass transition point of not lower than 110.degree. C., a shrinkage factor of not larger than 8%, and a water vapor permeability of not higher than 110 g/m.sup.2 .multidot.24 H after being cured. The optical recording medium having the above structure is capable of showing stable performances, even in an environment of high humidity.

REFERENCES:
patent: 4752554 (1988-06-01), Sato et al.
patent: 4839883 (1989-06-01), Nagata et al.

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