METHACRYLIC RESIN FOR OPTICAL ELEMENT

PROBLEM TO BE SOLVED: To provide a material for optical elements having excellent heat resistance, low moisture absorbability and low double refractiveness. SOLUTION: This methacrylic resin for optical elements is prepd. by copolymerizing a monomer mixture composed of (A) 20 to 85wt.% cyclohexyl met...

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Bibliographische Detailangaben
Hauptverfasser:	KAWACHI YASUNORI, TAYAMA SUEHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS ORGANIC MACROMOLECULAR COMPOUNDS PHYSICS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a material for optical elements having excellent heat resistance, low moisture absorbability and low double refractiveness. SOLUTION: This methacrylic resin for optical elements is prepd. by copolymerizing a monomer mixture composed of (A) 20 to 85wt.% cyclohexyl methacrylate, (B) 70 to 10wt.% methyl methacrylate, (C) 5 to 30wt.% at least one kind selected from cyclohexyl maleimide and isopropyl maleimide and (D) over 0 to