Process for removing monomer residues from acrylonitrile polymer

Details Process for removing monomer residues from acrylonitrile polymer Process for removing monomer residues from acrylonitrile polymer

1975-11-06

1980-04-08

Levin, Stanford M.

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

Synthetic resins

Treating polymer containing material or treating a solid...

260 296AN, 260 296PT, 526328, 526342, 528483, C08F 600, C08F 616, C08F 624

Patent

active

041974000

ABSTRACT:
In order to remove monomer residues from an acrylonitrile polymer which has been produced in the form of particles, for the purpose of reducing the residual monomer content to virtually negligible values, the particles are subjected to a removal process which includes raising the temperature of the particles to a value between the glass transition temperature and the melting point of the polymer.

REFERENCES:
patent: 2982760 (1961-05-01), Maragliano et al.
patent: 3325457 (1967-06-01), Finestone et al.
patent: 3454542 (1969-07-01), Cheape et al.
patent: 3491071 (1970-01-01), Lanzo
patent: 3553248 (1971-07-01), Wakita et al.
patent: 3663631 (1972-05-01), Takeya et al.
patent: 3663632 (1972-05-01), Takeya et al.

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