Title:
MALEIMIDE-BASED COPOLYMER, MALEIMIDE-BASED COPOLYMER COMPOSITION, RESIN COMPOSITION, AND INJECTION MOLDED BODY
Document Type and Number:
WIPO Patent Application WO/2022/024878
Kind Code:
A1
Abstract:
The object of the present invention is to provide a maleimide-based copolymer which makes it possible to obtain a resin composition that has excellent flowability and a low yellow index (YI) while having heat resistance imparting properties and impact resistance properties in a balanced manner, and also provide a maleimide-based copolymer composition, a resin composition, and an injection molded body in each of which the maleimide-based copolymer is used. The present invention provides a maleimide-based copolymer comprising an aromatic vinyl monomer unit, a vinyl cyanide monomer unit, and a maleimide monomer unit, the maleimide-based copolymer having a weight-average molecular weight of 50,000-110,000 and a midpoint glass transition temperature of 165-200°C as measured in accordance with JIS K-7121.
Inventors:
NAKANISHI SOICHIRO (JP)
MATSUMOTO MASANORI (JP)
NISHINO KOHEI (JP)
MATSUMOTO MASANORI (JP)
NISHINO KOHEI (JP)
Application Number:
PCT/JP2021/027153
Publication Date:
February 03, 2022
Filing Date:
July 20, 2021
Export Citation:
Assignee:
DENKA COMPANY LTD (JP)
International Classes:
B29C45/00; C08F8/32; C08F212/00; C08F220/42; C08F222/40; C08L35/06
Domestic Patent References:
| WO2009060917A1 | 2009-05-14 | |||
| WO2021006265A1 | 2021-01-14 | |||
| WO2021006266A1 | 2021-01-14 |
Foreign References:
| JPH05339479A | 1993-12-21 | |||
| JP2004346149A | 2004-12-09 | |||
| JPS5798536A | 1982-06-18 | |||
| JPS57125242A | 1982-08-04 | |||
| JP2004339280A | 2004-12-02 |
Other References:
See also references of EP 4190527A4
Attorney, Agent or Firm:
SK INTELLECTUAL PROPERTY LAW FIRM et al. (JP)
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