Method for removing chlorinated solvents from chlorinated polyme

Details Method for removing chlorinated solvents from chlorinated polyme Method for removing chlorinated solvents from chlorinated polyme

1981-03-24

1983-04-26

Henderson, C. A.

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

Synthetic resins

Treating polymer containing material or treating a solid...

528483, 528491, 528492, 528494, 528496, 528498, 528501, C08F 600, C08F 612

Patent

active

043813925

ABSTRACT:
Method for removing chlorinated solvents from chlorinated polymers which retain them as a result of a chlorination process, wherein after being dried and pulverized, said chlorinated polymer is treated with a non-halogenated aliphatic organic solvent or a halogenated aromatic organic solvent. Said organic solvent pertains to the following groups: alcohols such as methanol, ethanol, isopropanol; esters such as methyl formate, ethyl formate, methyl acetate; nitriles such as acetonitrile; aromatic halides such as chlorobenzene; hydrocarbons such as n-hexane; and acetone.

REFERENCES:
patent: 3062795 (1962-11-01), Cain
patent: 3355442 (1967-11-01), Taylor
patent: 3464966 (1969-09-01), Watson
patent: 4006126 (1977-02-01), Rettore
patent: 4049897 (1977-09-01), Houslay
patent: 4122249 (1978-10-01), Padget
patent: 4147859 (1979-04-01), Davis et al.

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