PROTECTIVE COATING COMPOSITION, ADHESIVE COMPOSITION, CURED ARTICLE, OPTICAL DISK, AND BONDING METHOD

PROBLEM TO BE SOLVED: To obtain an adhesive compsn. for optical disks excellent in curing properties at normal temp. and a cured article excellent in adhesion and durability by combining a specific protective coating compsn. for optical disks with a specific adhesive compsn. for optical disks. SOLUT...

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Bibliographische Detailangaben
Hauptverfasser:	YOKOSHIMA MINORU, TOKUDA KIYOHISA, ISHII KAZUHIKO, YOSHIDA KENJI, ASAMI ICHIJI
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES CHEMISTRY DYES 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 PAINTS PHYSICS POLISHES USE OF MATERIALS AS ADHESIVES
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To obtain an adhesive compsn. for optical disks excellent in curing properties at normal temp. and a cured article excellent in adhesion and durability by combining a specific protective coating compsn. for optical disks with a specific adhesive compsn. for optical disks. SOLUTION: A protective coating compsn. for optical disks is prepd. by mixing 70-99wt.% unsatd. compd., 0.1-29wt.% photopolymn. initiator, and 0.5-10wt.% cure accelerator for an org. peroxide. The coating compsn. is applied to a recording layer on an optical disk and is cured by the exposure to an energy ray to form a protective layer. An adhesive compsn. for optical disks is prepd. by mixing 80-99.99wt.% ethylenically unsatd. compd., 0.01-10wt.% org. peroxide, and 0-10wt.% photopolymn. initiator. The adhesive compsn. is applied to a protective layer of an optical disk. Then, the surface coated with the adhesive compsn. is stuck to the protected surface of another optical disk having a protective layer and it left standing at room temp. Thus, the adhesive compsn. is cured to bond two optical disks.