Continuous polymerization device, method for producing polymer composition, and injection valve

摘要

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).

主权项

1. A continuous polymerization apparatus at least comprising
a first reactor and a second reactor, wherein each of the reactors comprises a supply port and an effluent port, wherein the supply port of the first reactor is connected to supply sources of a raw material monomer and a polymerization initiator, wherein the effluent port of the first reactor is connected to the supply port of the second reactor by a connection line, wherein the connection line is combined with a replenishing line through an injection valve at a combining part located between the effluent port of the first reactor and the supply port of the second reactor, and wherein the injection valve in a full closure state thereof comprises a clearance capable of causing a fluid comprising at least the raw material monomer to flow from the replenishing line to the connection line.