JPS5286499A - Preparation of polyalkylene glycol derivatives - Google Patents
Preparation of polyalkylene glycol derivativesInfo
- Publication number
- JPS5286499A JPS5286499A JP276676A JP276676A JPS5286499A JP S5286499 A JPS5286499 A JP S5286499A JP 276676 A JP276676 A JP 276676A JP 276676 A JP276676 A JP 276676A JP S5286499 A JPS5286499 A JP S5286499A
- Authority
- JP
- Japan
- Prior art keywords
- polyalkylene glycol
- glycol derivatives
- preparation
- derivatives
- vacuo
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE: To remove a very amount of formaldehyde contained in polyalkylene glycol derivatives by adding a water-soluble antioxidant to the polyalkylene glycol derivatives, and by the treatment in vacuo, or by blowing an inert gas into the mixture at 40 -100°C.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP276676A JPS5286499A (en) | 1976-01-14 | 1976-01-14 | Preparation of polyalkylene glycol derivatives |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP276676A JPS5286499A (en) | 1976-01-14 | 1976-01-14 | Preparation of polyalkylene glycol derivatives |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5286499A true JPS5286499A (en) | 1977-07-18 |
Family
ID=11538450
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP276676A Pending JPS5286499A (en) | 1976-01-14 | 1976-01-14 | Preparation of polyalkylene glycol derivatives |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5286499A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0842964A1 (en) * | 1996-11-18 | 1998-05-20 | Kenrick M. Lewis | Treatment of polyethers prior to hydrosilylation |
JP2005343964A (en) * | 2004-06-01 | 2005-12-15 | Otsuka Pharmaceut Factory Inc | Aqueous solution containing polyalkylene glycol and method for preparing the same |
-
1976
- 1976-01-14 JP JP276676A patent/JPS5286499A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0842964A1 (en) * | 1996-11-18 | 1998-05-20 | Kenrick M. Lewis | Treatment of polyethers prior to hydrosilylation |
US5986122A (en) * | 1996-11-18 | 1999-11-16 | Witco Corporation | Treatment of polyethers prior to hydrosilylation |
JP2005343964A (en) * | 2004-06-01 | 2005-12-15 | Otsuka Pharmaceut Factory Inc | Aqueous solution containing polyalkylene glycol and method for preparing the same |
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