PHOTOCURABLE RESIN COMPOSITION

PROBLEM TO BE SOLVED: To provide a photocurable resin composition which includes a urethane acrylate, a (meth)acrylate monomer, and a photoinitiator, has reduced curing shrinkage, and has transparency and toughness.SOLUTION: A photocurable resin composition comprising a urethane acrylate, a (meth)ac...

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Bibliographische Detailangaben
Hauptverfasser:	MIZUMA KENTA, NEGAYAMA SADAO
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a photocurable resin composition which includes a urethane acrylate, a (meth)acrylate monomer, and a photoinitiator, has reduced curing shrinkage, and has transparency and toughness.SOLUTION: A photocurable resin composition comprising a urethane acrylate, a (meth)acrylate monomer, and a photoinitiator includes crosslinkable acrylic polymer particles. The (meth)acrylate monomer includes one or more monomers selected from a (meth)acrylate having an alkyl group having 18 or less carbon atoms, a (meth)acrylate having an alicyclic group, and a (meth)acrylate having a hydroxyalkyl group having 2-4 carbon atoms. The crosslinkable acrylic polymer particles are prepared from 95-60 wt.% of a monofunctional (meth)acrylate and 5-40 wt.% pf a crosslinkable polyfunctional monomer by suspension polymerization, wherein the monofunctional (meth)acrylate is n-butyl methacrylate.