Chemically reducing residual acrylonitrile monomer in nitrile po

Details Chemically reducing residual acrylonitrile monomer in nitrile po Chemically reducing residual acrylonitrile monomer in nitrile po

1978-11-02

1980-10-14

Levin, Stanford M.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

215 1C, 260 23R, 260 23AR, 260 23H, 260 23S, 260 23XA, 264500, 26432814, 426106, 528486, C08L 3320, C08L 9100, D01F 110

Patent

active

042281199

ABSTRACT:
A process for reducing free acrylonitrile monomer in nitrile polymers during melting which involves having an effective amount of an unsaturated fatty acid or a glyceride of oleic, linoleic and linolenic acid or compounds such as safflower and linseed oils as an acrylonitrile scavenger in admixture with the polymer during melting. Shaped products such as preforms, containers, film, sheet, etc., formed from such melt are well suited for packaging food, beverages, pharmaceuticals, cosmetics, etc., in that residual acrylonitrile monomer in the walls of such products is minimal.

REFERENCES:
patent: 3438971 (1969-04-01), Walker
patent: 3863014 (1975-01-01), Mottus
patent: 3900120 (1975-08-01), Sincock
patent: 3931074 (1976-01-01), Gomez
patent: 3974297 (1976-08-01), Ott
"The Chemistry of Acrylonitrile," American Cyanamid Co., Second Ed., (1959), pp. 13, 14, 77.

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