URETHANE (METH)ACRYLATE, RADIATION-CURABLE COMPOSITION AND ITS CURED FILM

PROBLEM TO BE SOLVED: To provide a radiation-curable composition which is excellent in applicability and is capable of forming a coating film on surfaces of various substrates, wherein the coating film has a high hardness and a high refractive index and is excellent in scratch resistance and adhesio...

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Bibliographische Detailangaben
Hauptverfasser: TANABE TAKAYOSHI, SHINOHARA NOBUYASU, HATORI SHIN, USUI NOBUSHI
Format: Patent
Sprache:eng
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a radiation-curable composition which is excellent in applicability and is capable of forming a coating film on surfaces of various substrates, wherein the coating film has a high hardness and a high refractive index and is excellent in scratch resistance and adhesion property to the substrate and a low-refractive-index layer, and its cured product. SOLUTION: The radiation-curable composition contains a compound of formula (2) [wherein multiple R1s are each independently a monovalent organic group having a (meth)acryloyl group; multiple R2s are each independently a 2-4C alkylene group; and m and n are each independently an integer of 1-3], a photopolymerization initiator and a solvent. COPYRIGHT: (C)2007,JPO&INPIT