Production of copolymers of acrylonitrile and vinyl chloride

Details Production of copolymers of acrylonitrile and vinyl chloride Production of copolymers of acrylonitrile and vinyl chloride

1979-11-19

1982-06-08

Henderson, C. A.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526342, C08F 230, C08F22230, C08F 226

Patent

active

043340466

ABSTRACT:
The invention relates to a process for the production of a chemically uniform acrylonitrile vinyl chloride copolymer in an aqueous emulsion in the presence of a redox catalyst and with a fluctuating concentration of at least one iron salt in the reaction medium wherein the polymerization reaction is carried out at a pH value of from 2 to 6 in the presence of a mixture of an iron salt and a complex former, the complex former having certain apparent stability constants of the iron-II-complex and of the iron-III-complex.

REFERENCES:
patent: 3135722 (1964-06-01), Logemann
patent: 3193537 (1964-07-01), Dinges
patent: 4100339 (1978-07-01), Konig
patent: 4118556 (1978-10-01), Konig

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