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Title:
METHACRYLIC RESIN, METHOD FOR PRODUCING METHACRYLIC RESIN, METHACRYLIC RESIN COMPOSITION, MOLDED BODY, OPTICAL COMPONENT AND AUTOMOBILE COMPONENT
Document Type and Number:
WIPO Patent Application WO/2020/080267
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide: a methacrylic resin which enables the achievement of a molded body that is excellent in terms of the color in a long optical path; and a methacrylic resin composition. A methacrylic resin according to the present invention has a structural unit (X) that has a ring structure in the main chain, and is characterized by having a glass transition temperature (Tg) of more than 120°C but 160°C or less, while being also characterized in that if a chloroform solution containing 2.0% by mass of this methacrylic resin is subjected to spectroscopy, the luminous intensity at 514 nm as obtained at an excitation wavelength of 436 nm with a slit width of 2 nm is 30 × 10-10 mol/L or less in terms of concentration of ethanol solution of fluorescein.

Inventors:
INAGAWA YUICHIRO (JP)
YOSHIDA JUNICHI (JP)
Application Number:
PCT/JP2019/040124
Publication Date:
April 23, 2020
Filing Date:
October 10, 2019
Export Citation:
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Assignee:
ASAHI CHEMICAL IND (JP)
International Classes:
C08F220/14; C08F222/40; C08L33/10; G02B5/30
Domestic Patent References:
WO2009041693A12009-04-02
WO2011149088A12011-12-01
WO2012128255A12012-09-27
WO2012114718A12012-08-30
WO2014002491A12014-01-03
Foreign References:
JP2017132981A2017-08-03
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Other References:
"Review of Chemistry", 1998, PUBLISHING CENTER OF THE CHEMICAL SOCIETY OF JAPAN
POLYMER ENGINEERING AND SCIENCE, vol. 39, 1999, pages 2349 - 2357
See also references of EP 3868800A4
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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