Optical information recording medium

Details Optical information recording medium Optical information recording medium

1987-07-17

1989-04-11

Goldberg, E. A.

Recorders

Record receivers and/or driving means therefor

Disc

3461351, 427 541, 427162, 428 64, 428 65, 428694, 430945, 369284, 369288, G01D 1534, B32B 712

Patent

active

048210501

ABSTRACT:
An optical information recording medium of two disc substrates, which are adhered directly or through a convex portion formed on at least one of the substrates or a spacer provided between the substrates by an adhesive layer, and a recording layer which is capable of recording and/or reading information by laser beam and which is provided on a surface of at least one of the substrates facing the other substrate, wherein the adhesive layer is formed by an ultraviolet-curing epoxy adhesive composition comprising a light-initiator which produces a cationic polymerization initiator upon irradiation with ultraviolet rays and an epoxy compound having two or more epoxy groups per molecule.

REFERENCES:
patent: 4434429 (1984-02-01), Terao et al.
patent: 4499477 (1985-02-01), Davies et al.

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