JPS541365A - Purification of high-molecular-weight alkylene oxide polymer - Google Patents
Purification of high-molecular-weight alkylene oxide polymerInfo
- Publication number
- JPS541365A JPS541365A JP6688977A JP6688977A JPS541365A JP S541365 A JPS541365 A JP S541365A JP 6688977 A JP6688977 A JP 6688977A JP 6688977 A JP6688977 A JP 6688977A JP S541365 A JPS541365 A JP S541365A
- Authority
- JP
- Japan
- Prior art keywords
- purification
- molecular
- alkylene oxide
- oxide polymer
- weight alkylene
- 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.)
- Granted
Links
Abstract
PURPOSE: In the purification of crude high-molecular-weight polyalkylene oxide by removing an alkali metal compound, a solvent is added to reduce the viscosity of the reaction mixture and make the solution different in specific gravity from water and the aqueous layer is made acidic to facilitate the layer separation.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6688977A JPS541365A (en) | 1977-06-06 | 1977-06-06 | Purification of high-molecular-weight alkylene oxide polymer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6688977A JPS541365A (en) | 1977-06-06 | 1977-06-06 | Purification of high-molecular-weight alkylene oxide polymer |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS541365A true JPS541365A (en) | 1979-01-08 |
JPS6125739B2 JPS6125739B2 (en) | 1986-06-17 |
Family
ID=13328915
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6688977A Granted JPS541365A (en) | 1977-06-06 | 1977-06-06 | Purification of high-molecular-weight alkylene oxide polymer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS541365A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63176527A (en) * | 1987-01-14 | 1988-07-20 | Shigeru Tanaka | Steep slope protection work by planting |
JPH11256185A (en) * | 1998-03-11 | 1999-09-21 | Tokuyama Corp | Purification of nonionic surfactant |
JP2007204509A (en) * | 2006-01-30 | 2007-08-16 | Nof Corp | Method for producing terminal alkenyl group-containing polyoxyalkylene sterol derivative |
-
1977
- 1977-06-06 JP JP6688977A patent/JPS541365A/en active Granted
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63176527A (en) * | 1987-01-14 | 1988-07-20 | Shigeru Tanaka | Steep slope protection work by planting |
JPH0453207B2 (en) * | 1987-01-14 | 1992-08-26 | Shigeru Tanaka | |
JPH11256185A (en) * | 1998-03-11 | 1999-09-21 | Tokuyama Corp | Purification of nonionic surfactant |
JP2007204509A (en) * | 2006-01-30 | 2007-08-16 | Nof Corp | Method for producing terminal alkenyl group-containing polyoxyalkylene sterol derivative |
Also Published As
Publication number | Publication date |
---|---|
JPS6125739B2 (en) | 1986-06-17 |
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