Vinyl chloride polymerization method

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...

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526344, 528487, 260318HA, C08F11406

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active

041873637

ABSTRACT:
A method of achieving chain transfer in the polymerization of a vinyl chloride monomer to polyvinyl chloride, utilizing aldehydes of 3 to 6 carbon atoms as the chain transfer agent and treating the polymerization mixture with an alkali bisulfite, such as sodium bisulfite or potassium bisulfite solution after the vinyl chloride monomer has been stripped from the polymerization mixture to obtain modified polyvinyl chloride having improved compounded physical properties.

REFERENCES:
patent: 2414934 (1947-01-01), Denny
patent: 4060677 (1977-11-01), Walker

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