OPTICAL RECORDING MEDIUM

PURPOSE:To obtain an optical recording medium with an adhesive layer excellent in adhesive strength, water-proofness and moisture resistance and a substrate layer excellent in dimensional stability even in high-temperature and high-humidity circumstances, by making a substrate for optical disc made...

Full description

Saved in:
Bibliographic Details
Main Authors INAGAKI HAJIME, TOKITA TAKU
Format Patent
LanguageEnglish
Published 13.06.1989
Subjects
ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE
ADHESIVES
AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
CHEMISTRY
DYES
INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PAINTS
PERFORMING OPERATIONS
PHYSICS
POLISHES
PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE
SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR
SHAPING OR JOINING OF PLASTICS
TRANSPORTING
USE OF MATERIALS AS ADHESIVES
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Online AccessGet full text

Cover

More Information
Summary:PURPOSE:To obtain an optical recording medium with an adhesive layer excellent in adhesive strength, water-proofness and moisture resistance and a substrate layer excellent in dimensional stability even in high-temperature and high-humidity circumstances, by making a substrate for optical disc made from a specified ethylene/cyclic orefin copolymer and a set item of specified composition to be an adhesive layer. CONSTITUTION:An optical recording medium is composed of a substrate for optical disk made from the ethylene/cyclic orefin copolymer composed of the polymerization unit expressed by formula 1 and that expressed by formula 2, and as an adhesive layer a set item of the composition comprising a compound selected from the group of epoxy resin, sulfonium salt and cyclopentadiene iron compound, a compound selected from the group of acrylate, methacrylate and their oligomer, and a organic peroxide. As the ethylene/cyclic orefin copolymer, it is preferable to be composed of 10-60mol.% polymerization unit by formula 1 and 90-40mol.% by formula 2.
Bibliography:Application Number: JP19870309428