CYCLIC OLEFIN-BASED COPOLYMER AND ITS PRODUCTION

PROBLEM TO BE SOLVED: To obtain the subject copolymer composed of each specific recurring units in specified proportions, excellent in transparency, optical isotropy, hydrophilicity and heat resistance, and useful for optical materials, etc. SOLUTION: This copolymer is composed of (A) 2-80mol% of re...

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Bibliographic Details
Main Authors TAKEUCHI MASAKI, IWATA KAORU, YAMAURA MICHIO
Format Patent
LanguageEnglish
Published 12.05.1998
Edition6
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
ORGANIC MACROMOLECULAR COMPOUNDS
PHYSICS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:PROBLEM TO BE SOLVED: To obtain the subject copolymer composed of each specific recurring units in specified proportions, excellent in transparency, optical isotropy, hydrophilicity and heat resistance, and useful for optical materials, etc. SOLUTION: This copolymer is composed of (A) 2-80mol% of recurring unit of formula I ((p) and (q) are each 0 or 1; R to R are each H or methyl; R and R are each a 1-10C alkyl or 5-10C cycloalkyl) and (B) 98-20mol% of recurring unit of formula II [(r) is 0 or 1; R to R are each H or methyl; R to R are each H, a 6-10C aromatic hydrocarbon or 1-10C (un)saturated hydrocarbon]. This copolymer is obtained by ring opening copolymerization between a polar cyclic olefin of formula III and a nonpolar cyclic olefin of formula IV preferably followed by hydrogenation.
Bibliography:Application Number: JP19960274538