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Title:
METHACRYLIC RESIN COMPOSITION AND MOLDED BODY
Document Type and Number:
WIPO Patent Application WO/2019/221031
Kind Code:
A1
Abstract:
A methacrylic resin composition which contains: 100 parts by mass of a methacrylic resin which contains 50-97% by mass of (A) a methacrylic acid ester monomer unit, 3-30% by mass of (B) a structural unit having a ring structure in the main chain, and 0-20% by mass of (C) another vinyl monomer unit which is copolymerizable with a methacrylic acid ester monomer; and 0.001-0.2 part by mass of (D) a compound that has a specific structure. This methacrylic resin composition satisfies the following conditions (I) and (II). (I): This methacrylic resin composition has a weight average molecular weight of from 65,000 to 300,000 as determined by gel permeation chromatography (GPC). (II): The mass ratio of the structural unit (B) having a ring structure in the main chain to the component (D) satisfies 25 ≤ (B)/(D) ≤ 1,000.

Inventors:
KOBAYASHI NOBUHIRO (JP)
MURAKAMI FUMIKI (JP)
Application Number:
PCT/JP2019/018785
Publication Date:
November 21, 2019
Filing Date:
May 10, 2019
Export Citation:
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Assignee:
ASAHI CHEMICAL IND (JP)
International Classes:
C08L33/10; C08F220/10; C08J5/18; C08K5/07; C08K5/3432
Domestic Patent References:
WO2009084663A12009-07-09
WO2015098096A12015-07-02
Foreign References:
JP2016169282A2016-09-23
JP2016079194A2016-05-16
JPS6289756A1987-04-24
JP2018162406A2018-10-18
JP2014024361A2014-02-06
JP2016210963A2016-12-15
JP2005023272A2005-01-27
US4246374A1981-01-20
JP2017125185A2017-07-20
JP2018096368A2018-06-21
Other References:
"NOF Corp.", ARKEMA YOSHITOMI, LTD. AND WAKO PURE CHEMICAL INDUSTRIES, LTD., article "Organic Peroxides"
See also references of EP 3795632A4
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (JP)
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