Title:
PROCESS FOR PRODUCING MALEIMIDE COPOLYMER, AND THERMOPLASTIC RESIN PREPARED BY USING SAID COPOLYMER
Document Type and Number:
WIPO Patent Application WO/1986/004337
Kind Code:
A1
Abstract:
A process for producing maleimide copolymer, which comprises conducting suspension polymerization of a maleimide monomer and at least one monomer selected from the group consisting of an aromatic vinyl monomer, vinyl cyanide monomer, and methyl methacrylate monomer by using a calcium phosphate dispersing agent as a suspending and dispersing agent and dissolving a phosphate nonionic surfactant in the monomers. This process serves to stabilize the polymerization system and minimize adhesion of resulting polymer to the inside wall of a polymerization tank. A thermoplastic resin composition is also disclosed, which is prepared by blending the above-described maleimide copolymer with a specific rubber-modified graft copolymer. This resin composition has excellent heat stability upon high-temperature molding and resistance to coloration, heat and impact.
Inventors:
KIMURA ATUSHI (JP)
TOYOOKA YUTAKA (JP)
KISHIDA KAZUO (JP)
TOYOOKA YUTAKA (JP)
KISHIDA KAZUO (JP)
Application Number:
PCT/JP1986/000017
Publication Date:
July 31, 1986
Filing Date:
January 17, 1986
Export Citation:
Assignee:
MITSUBISHI RAYON CO (JP)
International Classes:
C08F2/18; C08F222/40; C08L35/06; C08L51/04; (IPC1-7): C08F2/18; C08F212/04; C08L33/14; C08L35/06; C08L51/04
Foreign References:
| JPH04983785A | ||||
| JPH05495689A | ||||
| JPS57125242A | 1982-08-04 | |||
| JPS57167341A | 1982-10-15 | |||
| JPS58129043A | 1983-08-01 | |||
| JPS58206657A | 1983-12-01 | |||
| JPS59184243A | 1984-10-19 |
Other References:
See also references of EP 0208790A4
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