Process for the removal of vinyl chloride from polyvinyl chlorid

Details Process for the removal of vinyl chloride from polyvinyl chlorid Process for the removal of vinyl chloride from polyvinyl chlorid

1976-11-08

1980-10-07

Henderson, C. A.

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

Synthetic resins

Treating polymer containing material or treating a solid...

526200, 528490, 528501, C08F 624, C08F 616, C08F 220

Patent

active

042269750

ABSTRACT:
Vinyl chloride is removed from polyvinyl chloride dispersions and latexes by adding to them from 2% to 8% by weight of a polar water-soluble organic compound that has a boiling point between about 50.degree. C. and 150.degree. C. and sparging the resulting mixtures with a gas, such as nitrogen, while they are maintained at subatmospheric pressure.

REFERENCES:
patent: 2662867 (1953-12-01), Hoertz
patent: 3546192 (1970-12-01), Borsini
patent: 3956249 (1976-05-01), Goodman
patent: 4015064 (1977-03-01), Feldman et al.

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