IT8921547A0 - Procedimento per la purificazione di polieteri polioli. - Google Patents
Procedimento per la purificazione di polieteri polioli.Info
- Publication number
- IT8921547A0 IT8921547A0 IT8921547A IT2154789A IT8921547A0 IT 8921547 A0 IT8921547 A0 IT 8921547A0 IT 8921547 A IT8921547 A IT 8921547A IT 2154789 A IT2154789 A IT 2154789A IT 8921547 A0 IT8921547 A0 IT 8921547A0
- Authority
- IT
- Italy
- Prior art keywords
- purification
- procedure
- polyether polyols
- polyols
- polyether
- Prior art date
Links
- 239000004721 Polyphenylene oxide Substances 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 229920000570 polyether Polymers 0.000 title 1
- 229920005862 polyol Polymers 0.000 title 1
- 150000003077 polyols Chemical class 0.000 title 1
- 238000000746 purification Methods 0.000 title 1
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
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Polyethers (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8921547A IT1231506B (it) | 1989-08-24 | 1989-08-24 | Procedimento per la purificazione di polieteri polioli. |
DE69022940T DE69022940T2 (de) | 1989-08-24 | 1990-08-06 | Verfahren zur Reinigung von Polyätherpolyolen. |
EP90115083A EP0418533B1 (en) | 1989-08-24 | 1990-08-06 | Process for purifying polyether-polyols |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8921547A IT1231506B (it) | 1989-08-24 | 1989-08-24 | Procedimento per la purificazione di polieteri polioli. |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8921547A0 true IT8921547A0 (it) | 1989-08-24 |
IT1231506B IT1231506B (it) | 1991-12-07 |
Family
ID=11183423
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT8921547A IT1231506B (it) | 1989-08-24 | 1989-08-24 | Procedimento per la purificazione di polieteri polioli. |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0418533B1 (it) |
DE (1) | DE69022940T2 (it) |
IT (1) | IT1231506B (it) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2068237A1 (en) * | 1991-10-18 | 1993-04-19 | Edward C. Nieh | Catalyst removal from alcohol alkoxylates using acid clays |
DE19735795A1 (de) * | 1997-08-18 | 1999-02-25 | Bayer Ag | Verfahren zur Herstellung von Polyetherpolyolen |
CN104177607B (zh) * | 2014-09-01 | 2016-05-11 | 浙江永杰汽车电子有限公司 | 一种高环氧乙烷聚醚的制备方法 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4029879A (en) * | 1975-11-17 | 1977-06-14 | Basf Wyandotte Corporation | Process for the removal of catalysts from polyether polyols employing water and adsorbent |
US4192943A (en) * | 1978-06-13 | 1980-03-11 | E. I. Du Pont De Nemours And Company | Method for reducing oligomeric cyclic ether content of a polymerizate |
-
1989
- 1989-08-24 IT IT8921547A patent/IT1231506B/it active
-
1990
- 1990-08-06 EP EP90115083A patent/EP0418533B1/en not_active Expired - Lifetime
- 1990-08-06 DE DE69022940T patent/DE69022940T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
IT1231506B (it) | 1991-12-07 |
DE69022940D1 (de) | 1995-11-16 |
DE69022940T2 (de) | 1996-05-23 |
EP0418533A1 (en) | 1991-03-27 |
EP0418533B1 (en) | 1995-10-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19970829 |