Method of removing vinyl chloride monomer from polyvinyl chlorid

Details Method of removing vinyl chloride monomer from polyvinyl chlorid Method of removing vinyl chloride monomer from polyvinyl chlorid

1974-12-23

1980-05-27

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

5263441, 5263442, 528498, 528501, C08F 260, C08F 216, C08F 610, C08F 166

Patent

active

042051495

ABSTRACT:
This invention relates to a method for the removal of vinyl chloride monomer from polyvinyl chloride resins by lowering the Tg (glass transition temperature) of the polyvinyl chloride resins at an elevated temperature while in the presence of reduced pressure thus allowing the vinyl chloride monomer to escape from the polyvinyl chloride resins.

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patent: 3635928 (1972-01-01), Thomas
patent: 3696083 (1972-10-01), Hwa
patent: 3784532 (1974-01-01), Fellmann

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