Title:
MALEIMIDE COPOLYMER, AND CHLORINE-CONTAINING POLYMER RESIN COMPOSITION INCLUDING MALEIMIDE COPOLYMER AND CHLORINE-CONTAINING POLYMER
Document Type and Number:
WIPO Patent Application WO/2022/039099
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing: a maleimide copolymer from which it is possible to obtain a chlorine-containing polymer resin composition, in which coloration of the composition is suppressed and the heat resistance of the chlorine-containing polymer is improved; a chlorine-containing polymer resin composition including a maleimide copolymer and a chlorine-containing polymer; and a molded body of said chlorine-containing polymer resin composition. Furthermore, provide is a chlorine-containing polymer resin composition with excellent extrusion molding properties. The present invention provides a maleimide copolymer for chlorine-containing polymers which has 50 to 90 mass% of aromatic vinyl monomer units, 0.5 to 25 mass% of vinyl cyanide monomer units, 0 to 10 mass% of unsaturated acid anhydride monomer units, and 5 to 25 mass% of maleimide monomer units when the total of the aromatic vinyl monomer units, the vinyl cyanide monomer units, the unsaturated acid anhydride monomer units, and the maleimide monomer units is 100 mass%. The melt viscosity of the maleimide copolymer as measured under conditions of 190℃ and a shear rate of 100/sec, is 200 to 100,000 Pa sec. and the weight average molecular weight of the maleimide copolymer is 2.5 to 120,000.
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Inventors:
MATSUBARA TATSUHIRO (JP)
NISHINO KOHEI (JP)
NISHINO KOHEI (JP)
Application Number:
PCT/JP2021/029721
Publication Date:
February 24, 2022
Filing Date:
August 12, 2021
Export Citation:
Assignee:
DENKA COMPANY LTD (JP)
International Classes:
C08F212/08; C08F220/44; C08F222/06; C08F222/40; C08L25/12; C08L27/06
Foreign References:
| JPH02265944A | 1990-10-30 | |||
| JPH04122759A | 1992-04-23 | |||
| JPH11302482A | 1999-11-02 | |||
| JP2006265373A | 2006-10-05 |
Attorney, Agent or Firm:
SK INTELLECTUAL PROPERTY LAW FIRM et al. (JP)
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