Removal of acrylonitrile from latex with saturated heterocyclic

Details Removal of acrylonitrile from latex with saturated heterocyclic Removal of acrylonitrile from latex with saturated heterocyclic

1981-12-30

1983-08-16

Schofer, Joseph L.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524 96, 528492, C08K 535

Patent

active

043992404

ABSTRACT:
Acrylonitrile is a monomer that is widely used in the synthesis of a vast variety of polymers. Undesirable quantities of unpolymerized residual acrylonitrile are often present in these acrylonitrile polymers. This residual or free acrylonitrile dissolved in an acrylonitrile polymer and/or its emulsifier system and the water phase used in its polymerization can be reduced significantly in concentration by treatment with saturated 6 to 7 membered ring heterocyclic amines. These amines react with acrylonitrile by a nitrogen-cyanoethylation reaction which results in the formation of a tertiary amino linkage.

REFERENCES:
patent: 3779972 (1973-12-01), Minieri
patent: 3803113 (1974-04-01), Gluntz et al.
patent: 4020267 (1977-04-01), Park
patent: 4098991 (1978-07-01), Karg
patent: 4251412 (1981-02-01), Ferrini

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