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)
MURAKAMI FUMIKI (JP)
Application Number:
PCT/JP2019/018785
Publication Date:
November 21, 2019
Filing Date:
May 10, 2019
Export Citation:
Assignee:
ASAHI CHEMICAL IND (JP)
International Classes:
C08L33/10; C08F220/10; C08J5/18; C08K5/07; C08K5/3432
Domestic Patent References:
| WO2009084663A1 | 2009-07-09 | |||
| WO2015098096A1 | 2015-07-02 |
Foreign References:
| JP2016169282A | 2016-09-23 | |||
| JP2016079194A | 2016-05-16 | |||
| JPS6289756A | 1987-04-24 | |||
| JP2018162406A | 2018-10-18 | |||
| JP2014024361A | 2014-02-06 | |||
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| JP2005023272A | 2005-01-27 | |||
| US4246374A | 1981-01-20 | |||
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Other References:
"NOF Corp.", ARKEMA YOSHITOMI, LTD. AND WAKO PURE CHEMICAL INDUSTRIES, LTD., article "Organic Peroxides"
See also references of EP 3795632A4
See also references of EP 3795632A4
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (JP)
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