ZA200509794B - Highly pure polyalkylene glycols and production method thereof - Google Patents
Highly pure polyalkylene glycols and production method thereofInfo
- Publication number
- ZA200509794B ZA200509794B ZA200509794A ZA200509794A ZA200509794B ZA 200509794 B ZA200509794 B ZA 200509794B ZA 200509794 A ZA200509794 A ZA 200509794A ZA 200509794 A ZA200509794 A ZA 200509794A ZA 200509794 B ZA200509794 B ZA 200509794B
- Authority
- ZA
- South Africa
- Prior art keywords
- production method
- polyalkylene glycols
- highly pure
- pure polyalkylene
- highly
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/30—Post-polymerisation treatment, e.g. recovery, purification, drying
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/26—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
- C08G65/2603—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing oxygen
- C08G65/2606—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing oxygen containing hydroxyl groups
- C08G65/2609—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing oxygen containing hydroxyl groups containing aliphatic hydroxyl groups
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyethers (AREA)
- Detergent Compositions (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003125264 DE10325264A1 (en) | 2003-06-03 | 2003-06-03 | Purification of polyalkylene glycol for use in food and pharmaceuticals, involves treating the crude alkylene oxide-glycol addition product at above pH 7 with a bleaching agent, preferably hydrogen peroxide |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA200509794B true ZA200509794B (en) | 2008-09-25 |
Family
ID=33482500
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA200509794A ZA200509794B (en) | 2003-06-03 | 2005-12-02 | Highly pure polyalkylene glycols and production method thereof |
Country Status (3)
Country | Link |
---|---|
CN (1) | CN100448915C (en) |
DE (1) | DE10325264A1 (en) |
ZA (1) | ZA200509794B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2488616B1 (en) * | 2009-10-16 | 2017-08-09 | Dow Global Technologies LLC | Cutting fluids with improved performance |
CN106432709A (en) * | 2016-04-25 | 2017-02-22 | 桐乡市恒隆化工有限公司 | Production method for preventing fatty alcohol-polyoxyethylene ether from yellowing |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4946939A (en) * | 1989-05-30 | 1990-08-07 | The Dow Chemical Company | High purity polyether polyols |
US5235114A (en) * | 1991-04-29 | 1993-08-10 | Olin Corporation | Process for purifying and end-capping polyols made using double metal cyanide catalysts |
EP1245608B1 (en) * | 2001-03-27 | 2004-05-19 | Nof Corporation | Polyethylene glycol and process for producing the same |
-
2003
- 2003-06-03 DE DE2003125264 patent/DE10325264A1/en not_active Withdrawn
-
2004
- 2004-06-02 CN CNB2004800191215A patent/CN100448915C/en not_active Expired - Fee Related
-
2005
- 2005-12-02 ZA ZA200509794A patent/ZA200509794B/en unknown
Also Published As
Publication number | Publication date |
---|---|
CN100448915C (en) | 2009-01-07 |
DE10325264A1 (en) | 2004-12-23 |
CN1816582A (en) | 2006-08-09 |
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