TWI533015B

An optical part consisting of the injection molded article, and a resin composition for forming the optical part are provided to increase refractive index and to improve transparency. An optical part consists of the injection molded article formed from a resin composition, wherein the resin composit...

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Bibliographic Details
Main Authors SUMI, KOUICHI, MUTSUGA, YASUAKI, NAKAMURA, KAZUHIRO, KAJIWARA, ICHIROU, YAMAZAKI, DAISUKE, KAWASHIMA, NAOYUKI
Format Patent
LanguageChinese
Published 11.05.2016
Subjects
AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
METALLURGY
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
ORGANIC MACROMOLECULAR COMPOUNDS
PERFORMING OPERATIONS
PHYSICS
SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR
SHAPING OR JOINING OF PLASTICS
THEIR PREPARATION OR CHEMICAL WORKING-UP
TRANSPORTING
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Summary:An optical part consisting of the injection molded article, and a resin composition for forming the optical part are provided to increase refractive index and to improve transparency. An optical part consists of the injection molded article formed from a resin composition, wherein the resin composition comprises 1-40 parts by weight of a polystyrene having a polystyrene-reduced average molecular weight of 1,000-5,000 measured by gel permeable chromatography; and 100 parts by weight of a cyclic olefin-based resin having a glass transition temperature of 100-180 °C. The polystyrene has a weight average molecular weight of 2,000-4,500. The weight loss rate of the polystyrene is 7 % or less when it is heated at 250 °C for 1 hour.
Bibliography:Application Number: TW200998106986