Process for producing vinyl chloride resin of improved dispersibility by dehydration of latex
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United States of America Patent
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Jan 26, 1993
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N/A
app pub date -
Jul 1, 1991
filing date -
Feb 15, 1988
priority date (Note) -
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Abstract
A process for producing a granular vinyl chloride resin from a vinyl chloride resin latex prepared by emulsion polymerization or fine suspension polymerization, which comprises: (A) a step of flocculating the vinyl chloride resin latex, (B) a step of dehydrating the flocculated vinyl chloride resin to a water content of at most 50% by weight by means of a filter press dehydrator, a belt press dehydrator or a tube press dehydrator, and (C) a step of drying the dehydrated vinyl chloride resin at a temperature of lower than 80.degree. C.
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