Title:
【発明の名称】熱可塑性共重合体の製造方法
Document Type and Number:
Japanese Patent JP2667550
Kind Code:
B2
Abstract:
A thermoplastic copolymer having excellent thermal resistance and transparency and high mechanical strengths, and comprising a terpolymer composed of 30 to 70 % by weight of aromatic vinyl compound units, 4 to 40 % by weight of vinyl cyanide units and 26 to 50 % by weight of N-substituted maleimide units. The copolymer has a narrow distribution of the copolymer composition for GPC, is substantially free from acetone insolubles, has a weight-average molecular weight of 100,000 to 300,000 and a number-average molecular weight of 50,000 to 150,000, and contains at most 50 ppm of residual unreacted substituted maleimide. This copolymer can be produced efficiently by the method of this invention. A thermoplastic resin composition comprising this copolymer gives a molding having excellent heat and chemical resistances and high impact strength and being suitable as a material of the interior furnishings of an automobile and the components of electric and electronics appliances.
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Inventors:
Maeda Katsuaki
Akihiro Watanabe
Nishihara Hajime
Akihiro Watanabe
Nishihara Hajime
Application Number:
JP12535290A
Publication Date:
October 27, 1997
Filing Date:
May 17, 1990
Export Citation:
Assignee:
Asahi Chemical Industry Co., Ltd.
International Classes:
C08K7/14; C08F2/00; C08F2/02; C08F2/04; C08F2/06; C08F22/36; C08F212/00; C08F212/08; C08F212/10; C08F220/42; C08F222/40; C08K7/00; C08L25/00; C08L25/02; C08L25/12; C08L33/18; C08L35/06; C08L51/00; C08L51/04; C08L69/00; (IPC1-7): C08F212/08; C08F2/06; C08F220/42; C08F222/40
Domestic Patent References:
| JP61276807A | ||||
| JP62185705A | ||||
| JP63162708A | ||||
| JP6389561A |
Attorney, Agent or Firm:
Agata Akira