Kaneka Corporation

Kosuke Tanaka

Yoshiki Nakagawa

Nao Fujita

Naoki Furukawa

Shigeru Hagimori

Akihisa Hirota

Masanao Takeda

Kenichi Kitano

Shigeki Ono

Takahiro Ohishi

Shiori Ozasa

Yosuke Asai

A reaction apparatus comprising at least one tubular reaction unit (), a container () configured to accommodate the tubular reaction unit () and a temperature control medium () used in heat exchange with the tubular reaction unit (), and a nozzle () configured to eject the temperature control medium () toward the tubular reaction unit () in the container. The reaction apparatus further comprising a movable part () configured to adjust an ejection direction of the nozzle () is preferred. The reaction apparatus allows for effectively performing the temperature control even when the tubular reaction unit is immersed in a temperature control medium.

Reaction apparatus

The present invention provides: a process for preparing a vinyl polymer containing a halogen in an amount of 1,000 mg or less per kilogram, in which a vinyl polymer containing the halogen produced by atom transfer radical polymerization of a vinyl monomer is heated at a temperature in the range of 140 to 250&#xb0; C. to dehalogenate the vinyl polymer; a vinyl polymer obtained by the process; and a hydrosilylation-reactive curable composition containing the vinyl polymer.

Process for producing vinyl polymer, vinyl polymer, and curable composition

The present invention provides a method for producing a vinyl polymer including the steps of polymerizing a vinyl monomer by atom transfer radical polymerization with a transition metal complex as a polymerization catalyst, and bringing the resultant vinyl polymer into contact with an adsorbent in the presence of an oxidizing agent; the vinyl polymer produced by the method; and a reactive composition susceptible to hydrosilylation containing the vinyl polymer produced by the method and having at least one alkenyl group per molecule.

Process for producing vinyl polymer

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Settsu, Japan

Kosuke Tanaka