Process to copolymerize vinyl chloride and chlorotrifluoroethylene
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United States of America Patent
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May 7, 1985
Grant Date -
N/A
app pub date -
Mar 11, 1983
filing date -
Mar 11, 1983
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process for the suspension copolymerization of vinyl chloride and chlorotrifluoroethylene to form a copolymer having a constant weight ratio of vinyl chloride and chlorotrifluoroethylene independent of conversion, which consists in polymerization with an initial charge containing excess vinyl chloride and adding additional vinyl chloride prior to reaching the conversion where the copolymer composition changes.
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