CURING COMPOSITION FOR OPTICAL INFORMATION MEDIUM

PROBLEM TO BE SOLVED: To provide a curing composition used for a light transmission layer of an optical information medium excellent in elastic modulus, substrate adhesion, warpage, and corrosion resistance.SOLUTION: A curing composition for an optical information medium comprises: an urethane (meth...

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Hauptverfasser:	TAJIMA YOSHIMI, NURISHI SEIJI
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PHYSICS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a curing composition used for a light transmission layer of an optical information medium excellent in elastic modulus, substrate adhesion, warpage, and corrosion resistance.SOLUTION: A curing composition for an optical information medium comprises: an urethane (meth)acrylate (A) obtained from a bifunctional or more isocyanate compound (a1), a diol (a2) represented by the formula (1), a carbonate bond-containing polyol (a3), and a compound having a hydroxy group and a (meth)acryloyloxy group; a (meth)acryloyloxy group-containing alicyclic skeleton compound (B); a (meth)acryloyloxy group-containing hydrophobic compound (C); and a photopolymerization initiator (D).