Catalytic process for the preparation of polyacrylonitrile and a

Details Catalytic process for the preparation of polyacrylonitrile and a Catalytic process for the preparation of polyacrylonitrile and a

1974-07-08

1976-05-25

Wong, Jr., Harry

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

260 326N, 260 47UA, 260 63N, 260 793M, 526 90, 526222, 526 72, 526225, 526328, 526342, 526347, C08F12044, C08F22044

Patent

active

039592405

ABSTRACT:
A process for polymerizing acrylonitrile monomer or copolymerizing a mixture of acrylonitrile monomer and further ethylenically unsaturated monomers copolymerizable therewith, which comprises contacting the monomer or mixture of monomers in an aqueous medium at a temperature not exceeding 55.degree.C with a catalytic system comprising a watersoluble persulphate, a hydroxylamine mono- or disulfonate and a water-soluble salt of a variable valence metal, such as a ferrous salt.

REFERENCES:
patent: 2750357 (1956-06-01), Bredereck et al.
patent: 3065212 (1962-11-01), Milford et al.
patent: 3174954 (1965-03-01), Nakayama et al.
patent: 3635927 (1972-01-01), Johnston

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