Title:
1,3-BUTYLENE GLYCOL PRODUCT
Document Type and Number:
WIPO Patent Application WO/2021/045150
Kind Code:
A1
Abstract:
Provided is a high-purity 1,3-butylene glycol product which is colorless and odorless, is less likely to be colored over time, and is less likely to cause an increase in acid concentration over time even when water is contained. In gas chromatography analysis under specific conditions, this 1,3-butylene glycol product has an area ratio of a peak, shown in a relative retention time range of 1.6-1.8, of at most 2000 ppm, when the relative retention time of the peak for 1,3-butylene glycol is 1.0.
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Inventors:
KAJIKAWA YASUTERU (JP)
NAKANISHI TETSURO (JP)
TESHIMA YUKI (JP)
HIRAI YUUICHIROU (JP)
ONO KEISUKE (JP)
UMEHARA MIDORI (JP)
NAKANISHI TETSURO (JP)
TESHIMA YUKI (JP)
HIRAI YUUICHIROU (JP)
ONO KEISUKE (JP)
UMEHARA MIDORI (JP)
Application Number:
PCT/JP2020/033418
Publication Date:
March 11, 2021
Filing Date:
September 03, 2020
Export Citation:
Assignee:
DAICEL CORP (JP)
International Classes:
C07C29/141; A61K8/34; A61Q19/00; C07C29/80; C07C31/20
Domestic Patent References:
| WO2000007969A1 | 2000-02-17 | |||
| WO2000007969A1 | 2000-02-17 |
Foreign References:
| JP2001213825A | 2001-08-07 | |||
| JP2007517882A | 2007-07-05 | |||
| JP2003096006A | 2003-04-03 | |||
| JPS62246529A | 1987-10-27 | |||
| JPS6165834A | 1986-04-04 | |||
| JP2019162351A | 2019-09-26 | |||
| JP2019162352A | 2019-09-26 | |||
| JP2020001084A | 2020-01-09 | |||
| JPH07258129A | 1995-10-09 | |||
| JP2001213822A | 2001-08-07 | |||
| JP2001213824A | 2001-08-07 | |||
| JP2001213825A | 2001-08-07 | |||
| JP2001213828A | 2001-08-07 |
Other References:
See also references of EP 4026824A4
Attorney, Agent or Firm:
GOTO & CO. (JP)
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