Title:
METHOD FOR DECOMPOSING POLYOXALATE
Document Type and Number:
WIPO Patent Application WO/2018/116991
Kind Code:
A1
Abstract:
The present invention provides a method for decomposing a polyoxalate, which hydrolyzes a polyoxalate in water, and which is characterized by promoting the hydrolysis of the polyoxalate by having a chelating agent for trapping Ca ions or an oxalic acid trapping agent coexistent in the water, said oxalic acid trapping agent being reactive with oxalic acid or an oxalic acid salt.
Inventors:
YOSHIKAWA SEISHI (JP)
KAWAHARA NARU (JP)
KATAYAMA TSUTAKI (JP)
SHIBATA KOUKI (JP)
KAWAHARA NARU (JP)
KATAYAMA TSUTAKI (JP)
SHIBATA KOUKI (JP)
Application Number:
PCT/JP2017/045158
Publication Date:
June 28, 2018
Filing Date:
December 15, 2017
Export Citation:
Assignee:
TOYO SEIKAN GROUP HOLDINGS LTD (JP)
International Classes:
E21B43/26; C08G63/78; C09K8/12; C07C59/08; C07F5/06
Foreign References:
| JP2016098503A | 2016-05-30 | |||
| JP2011212923A | 2011-10-27 | |||
| JPS60212589A | 1985-10-24 | |||
| JPS5423702A | 1979-02-22 | |||
| JP2013166710A | 2013-08-29 | |||
| JP2016069744A | 2016-05-09 | |||
| JP2010280866A | 2010-12-16 | |||
| JP2013172690A | 2013-09-05 | |||
| JP2008207065A | 2008-09-11 | |||
| JPH01159388A | 1989-06-22 | |||
| JP2015209568A | 2015-11-24 |
Attorney, Agent or Firm:
ONO, Hisazumi et al. (JP)
Download PDF: