Process for producing an aromatic vinyl compound-vinyl cyanide c

Details Process for producing an aromatic vinyl compound-vinyl cyanide c Process for producing an aromatic vinyl compound-vinyl cyanide c

1989-03-10

1991-03-26

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526212, C08F22044

Patent

active

050030213

ABSTRACT:
A process for producing a copolymer by continuously copolymerizing in a solution monomers comprising 40 to 95% by weight of an aromatic vinyl compound and 5 to 60% by weight of a vinyl cyanide compound, and further 0 to 30% by weight of a vinyl compound copolymerizable with the aromatic vinyl compound and vinyl cyanide compound, wherein 10 to 100 parts by weight of a solvent containing not less than 40% by weight of an alcohol is used as the polymerization solvent based on 100 parts by weight of the total amount of the monomers. According to the process, attachment of a gel-like polymer onto the polymerization vessel or device can be prevented. The copolymer is useful as a thermoplastic resin for various molded articles including electrical parts for domestic uses, automobile parts and commodity goods.

REFERENCES:
patent: 2895938 (1959-07-01), Ohlinger et al.
patent: 3814739 (1974-06-01), Takeda
patent: 4052355 (1977-10-01), Neukam et al.
Indian J. Chem., vol. 6, Feb. (1968), pp. 116-118.

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