Title:
OPTICAL DISK AND ITS PRODUCTION
Document Type and Number:
Japanese Patent JP3229686
Kind Code:
B2
Abstract:
PURPOSE: To make it possible to prevent hindrance of curing by oxygen, to improve the hardness and scratching resistance of protective layers to provide the protective layers resistant to flawing and to lessen the deformation of the disk at the time of curing an active energy ray curing resin.
CONSTITUTION: The protective layer resin of the optical disk which has the protective layers consisting of the radical polymerizable active energy ray curing resin on one or both surfaces of a substrate and with which one or more of reading out, recording and erasing can be executed is cured by irradiating the resin with the active energy rays under reduced pressure conditions.
Inventors:
Yuko Suzuki
Shin Aihara
Sumio Hirose
Shin Aihara
Sumio Hirose
Application Number:
JP1153993A
Publication Date:
November 19, 2001
Filing Date:
January 27, 1993
Export Citation:
Assignee:
Mitsui Chemicals, Inc.
International Classes:
G11B7/26; G11B7/2405; G11B7/24073; G11B7/24079; G11B7/2433; G11B7/254; G11B7/257; (IPC1-7): G11B7/26
Domestic Patent References:
| JP512714A |