Continuous polymerization device, method for producing polymer composition, and injection valve
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United States of America Patent
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Aug 2, 2016
Grant Date -
Jan 14, 2016
app pub date -
Jan 15, 2014
filing date -
Jan 31, 2013
priority date (Note) -
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Abstract
A continuous polymerization apparatus uses at least a first reactor and a second reactor (10, 20). Each of the reactors (10, 20) comprises a supply port (11a, 21a) and an effluent port (11b, 21b). The supply port (11a) of the first reactor (10) is connected to supply sources (1, 3) of a raw material monomer and a polymerization initiator, and the effluent port (11b) thereof is connected to the supply port (21a) of the second reactor (20) by a connection line (15a). The connection line (15a) is combined with a replenishing line (15b) through an injection valve (50) at a combining part. The injection valve (50) comprises, in a full closure state thereof, a clearance that may cause a fluid comprising at least the raw material monomer to flow from the replenishing line (15b) to the connection line (15a).
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