Process for the polymerization of acrylonitrile

Details Process for the polymerization of acrylonitrile Process for the polymerization of acrylonitrile

1975-08-12

1977-09-20

Wong, Jr., Harry

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

20415922, 260 25R, 260 793M, 526218, 526219, 526227, 526230, 526303, 526312, 526317, 526328, 526330, 526341, 526342, C08F 2044

Patent

active

040496058

ABSTRACT:
The present invention relates to a process for the polymerization of acrylonitrile or a monomer mixture containing acrylonitrile as a main component and at least one other ethylenically unsaturated compound, characterized in that the polymerization is conducted at a temperature above 120.degree. C. under a pressure above the vapor pressure generated in the polymerization system under the polymerization conditions in a system in which water is present in a range of 3 to 50 percent by weight based on the total weight of the monomer(s) and water to produce an acrylonitrile polymer in a substantially molten state. The polymers produced according to the above process have the advantage of being able to be directly shaped by extrusion without the need of solvents.

REFERENCES:
patent: 3499879 (1970-03-01), Kobayaski et al.
patent: 3719648 (1973-03-01), Frielink
patent: 3873508 (1975-03-01), Turner

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