Title:
HIGH PURITY VINYLENE CARBONATE
Document Type and Number:
Japanese Patent JP2009029814
Kind Code:
A
Abstract:
To provide a high purity vinylene carbonate economically obtained from a crude vinylene carbonate containing chlorine compounds as impurities.
The crude vinylene carbonate is dissolved in a polar solvent and/or an aromatic hydrocarbon solvent and then the vinylene carbonate is precipitated. As the solvent, one having a dissolved chlorine-containing impurity amount of 0.1 g, preferably 1 g per 100 g solvent is preferable and, for instance, toluene or a mixture of toluene and hexane is used.
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Inventors:
MIYAUCHI HIROO
OKANO KAZUYA
OKANO KAZUYA
Application Number:
JP2008203872A
Publication Date:
February 12, 2009
Filing Date:
August 07, 2008
Export Citation:
Assignee:
MITSUBISHI CHEM CORP
International Classes:
C07D317/40
Domestic Patent References:
| JP2000026449A | 2000-01-25 | |||
| JP2002008721A | 2002-01-11 |
Attorney, Agent or Firm:
Hajime Tsukuni
Koshiro Tsukuda
Fusayuki Saito
Satoko Ito
Hasegawa Soji
Koshiro Tsukuda
Fusayuki Saito
Satoko Ito
Hasegawa Soji
Previous Patent: JP2009029811
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