Production of vinyl chloride polymers
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United States of America Patent
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May 1, 1984
Grant Date -
N/A
app pub date -
Jul 12, 1982
filing date -
Jul 20, 1981
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Production of vinyl chloride polymer of high porosity by polymerizing vinyl chloride in aqueous suspension and injecting an effective surfactant at a monomer to polymer conversion within the range 15 to 65%. An effective surfactant is found to be one which lowers the interfacial tension between 1,2-dichloroethylene and water to .ltoreq.8 dynes cm.sup.-1.
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