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

PROBLEM TO BE SOLVED: To obtain an adhesive compsn. for optical disks which cures at normal temp. and gives a cured article excellent in adhesion and durability by mixing an unsatd. compd. mixture, an org. peroxide, and a cure accelerator. SOLUTION: A polyurethane (meth)acrylate and/or bisphenol epo...

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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 which cures at normal temp. and gives a cured article excellent in adhesion and durability by mixing an unsatd. compd. mixture, an org. peroxide, and a cure accelerator. SOLUTION: A polyurethane (meth)acrylate and/or bisphenol epoxy (meth) acrylate in an amount of 10-80 pts., 20-90 pts. monofunctional (meth)acrylate, and 0-50 pts. (meth)acrylate compd. other than the foregoing (meth)acrylates are mixed to give 100 pts.wt. unsatd. compd. mixture. 80-99.9wt.% the unsatd. compd. mixture, 0.01-10wt.% org peroxide, 0.001-5wt.% cure accelerator, and 0-15wt.% photopolymn. initiator are mixed to give an adhesive compsn. for optical disks. An optical disk substrate is coated with the adhesive compsn., and the coated surface is stuck to another optical disk substrate and cured at normal temp. for 0.5-24hr to bond the two substrates to each other.