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Title:
THERMOPLASTIC COPOLYMER, METHOD OF PRODUCING THE SAME, AND THERMOPLASTIC RESIN COMPOSITION COMPRISING THE SAME
Document Type and Number:
WIPO Patent Application WO/1990/015100
Kind Code:
A1
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 (JP)
WATANABE AKIHIRO (JP)
NISHIHARA HAJIME (JP)
Application Number:
PCT/JP1990/000704
Publication Date:
December 13, 1990
Filing Date:
May 30, 1990
Export Citation:
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Assignee:
ASAHI CHEMICAL IND (JP)
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; C08L25/04
Foreign References:
JPS63162708A1988-07-06
JPS59135210A1984-08-03
JPS6390516A1988-04-21
JPS6390515A1988-04-21
JPS6079019A1985-05-04
JPS59184243A1984-10-19
JPS63122746A1988-05-26
JPS62207346A1987-09-11
Other References:
See also references of EP 0541797A1
Attorney, Agent or Firm:
Toyoda, Yoshio (4-1 Yurakucho 1-chom, Chiyoda-ku Tokyo 100, JP)
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