Optically readable information disc and method of manufacturing

Details Optically readable information disc and method of manufacturing Optically readable information disc and method of manufacturing

1981-09-30

1984-05-01

Dixon, Jr., William R.

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

369284, 369286, 369288, 428 64, B32B 1508, G11B 724

Patent

active

044465491

ABSTRACT:
An optically readable information disc having a substrate plate which on at least one side comprises an information layer of a lacquer cured by irradiation for example by ultraviolet light, said layer carrying an optically readable information track in which the lacquer is a monocomponent lacquer which, in addition to 0.1-5% by weight of auxiliary substances, comprises only one radiation cross-linkable compound in a quantity by weight from 95-99.9% selected from the group consisting of alkanedioldiacrylates, alkanedioldimethacrylates, alkeneglycoldiacrylates and alkeneglycoldimethacrylates having the acrylate or methacrylate groups in end position, of which the alkane moiety and alkene moiety comprise from 4 to 12 carbon atoms, and in which the cured lacquer apart from the auxiliary substances comprises no or substantially no extractable material.

REFERENCES:
patent: 4272574 (1981-06-01), Lippitts et al.
patent: 4275091 (1981-06-01), Lippitts et al.
patent: 4389719 (1983-06-01), Van de Donk et al.

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