Title:
重合防止方法
Document Type and Number:
Japanese Patent JP5318374
Kind Code:
B2
Abstract:
The objective of the present invention is to provide a method for inhibiting polymerization of (meth)acrylic acid and the like. By the method, the generation of deposit in a pipe, which is exclusively used for providing a solution of a dialkyldithiocarbamic acid copper salt to a distillation column and the like, is prevented, and the problems such as the clogging of the pipe and polymerization in the distillation column are solved. The method according to the present invention for inhibiting polymerization of (meth)acrylic acid and/or an ester thereof is characterized in comprising a step of inhibiting polymerization of (meth)acrylic acid and/or the ester thereof by using a solution of a dialkyldithiocarbamic acid copper salt dissolved in an organic solvent, wherein a content amount of copper sulfate in the solution of the dialkyldithiocarbamic acid copper salt is 100 ppm or less by mass.
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Inventors:
Kazuhiko Sakamoto
Application Number:
JP2007156644A
Publication Date:
October 16, 2013
Filing Date:
June 13, 2007
Export Citation:
Assignee:
Nippon Shokubai Co., Ltd.
International Classes:
C07C51/50; C07C57/075; C07B63/04; C09K15/12
Domestic Patent References:
| JP2004051489A |
Other References:
化学大辞典4,日本,共立出版株式会社,1960年12月30日,321頁
Attorney, Agent or Firm:
Kyuichi Ueki
Hisahiko Ueki
Tadashi Sugakawa
Hiroaki Ito
Hisahiko Ueki
Tadashi Sugakawa
Hiroaki Ito