C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
402/396, 402/571
C08F 12/04 (2006.01)
Patent
CA 2013283
ABSTRACT OF THE DISCLOSURE Disclosed is a process for producing a styrene-based polymer having a high syndiotactic configuration, which comprises polymerizing a styrene-based monomer with addition of catalyst in such amounts that the conversion at 30 minutes after the polymerization starts becomes 2 to 50%, and then continuing the polymerization with additions of the catalyst when the conversion exceeds 10%. According to the process, the productivity can be improved while easily attaining safe running of the reactor and successful controlling of reaction heat.
Ishikawa Kazutoshi
Teshima Hideo
Yamamoto Koji
Idemitsu Petrochemical Company Limited
Smart & Biggar
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