BR9001123A - Processo para a remocao de catalisadores basicos de polieter-poliois - Google Patents
Processo para a remocao de catalisadores basicos de polieter-polioisInfo
- Publication number
- BR9001123A BR9001123A BR909001123A BR9001123A BR9001123A BR 9001123 A BR9001123 A BR 9001123A BR 909001123 A BR909001123 A BR 909001123A BR 9001123 A BR9001123 A BR 9001123A BR 9001123 A BR9001123 A BR 9001123A
- Authority
- BR
- Brazil
- Prior art keywords
- polyalis
- polyeter
- catalysts
- removal
- basic
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyethers (AREA)
- Polyesters Or Polycarbonates (AREA)
- Polyurethanes Or Polyureas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3907911A DE3907911A1 (de) | 1989-03-11 | 1989-03-11 | Verfahren zur entfernung von katalysatoren aus polyether-polyolen |
Publications (1)
Publication Number | Publication Date |
---|---|
BR9001123A true BR9001123A (pt) | 1991-03-05 |
Family
ID=6376087
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR909001123A BR9001123A (pt) | 1989-03-11 | 1990-03-09 | Processo para a remocao de catalisadores basicos de polieter-poliois |
Country Status (9)
Country | Link |
---|---|
US (1) | US5105019A (pt) |
EP (1) | EP0387576B1 (pt) |
JP (1) | JP2976307B2 (pt) |
KR (1) | KR0168429B1 (pt) |
BR (1) | BR9001123A (pt) |
CA (1) | CA2010433C (pt) |
DE (2) | DE3907911A1 (pt) |
ES (1) | ES2045592T3 (pt) |
MX (1) | MX170684B (pt) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4408004A1 (de) * | 1994-03-10 | 1995-09-14 | Bayer Ag | Verfahren zur Gewinnung von reinen, fließfähigen Alkali- oder Erdalkalisalzen aus den Salzrückständen der Polyetherpolyolproduktion |
EP2669312A1 (en) * | 2012-05-29 | 2013-12-04 | Huntsman International Llc | Process for the production of polyether polyols |
US11572440B2 (en) | 2020-02-18 | 2023-02-07 | Covestro Llc | Methods for purifying polyols containing oxyalkylene units to reduce 2-methyl-2-pentenal content |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3715402A (en) * | 1969-08-08 | 1973-02-06 | Basf Wyandotte Corp | Removal of catalysts from polyols |
BE795455A (fr) * | 1972-02-24 | 1973-08-16 | Basf Ag | Procede de preparation de polyalkylene-ethers purs |
DD104806A1 (pt) * | 1973-05-30 | 1974-03-20 | ||
DE2554228A1 (de) * | 1974-12-13 | 1976-06-16 | Basf Wyandotte Corp | Verfahren zur reinigung von hydroxylgruppenhaltigen polyaethern |
US4029879A (en) * | 1975-11-17 | 1977-06-14 | Basf Wyandotte Corporation | Process for the removal of catalysts from polyether polyols employing water and adsorbent |
US4137396A (en) * | 1976-09-24 | 1979-01-30 | Basf Wyandotte Corporation | Filtration process for purifying polyols |
US4129718A (en) * | 1977-12-01 | 1978-12-12 | Basf Wyandotte Corporation | Process for the removal of catalyst from polyether polyol |
US4137398A (en) * | 1978-06-09 | 1979-01-30 | Basf Wyandotte Corporation | Process for the removal of catalyst from polyether polyol |
-
1989
- 1989-03-11 DE DE3907911A patent/DE3907911A1/de not_active Withdrawn
-
1990
- 1990-02-20 CA CA002010433A patent/CA2010433C/en not_active Expired - Fee Related
- 1990-02-23 MX MX019635A patent/MX170684B/es unknown
- 1990-02-25 ES ES90103642T patent/ES2045592T3/es not_active Expired - Lifetime
- 1990-02-25 EP EP90103642A patent/EP0387576B1/de not_active Expired - Lifetime
- 1990-02-25 DE DE9090103642T patent/DE59000031D1/de not_active Expired - Lifetime
- 1990-03-02 US US07/459,233 patent/US5105019A/en not_active Expired - Fee Related
- 1990-03-09 BR BR909001123A patent/BR9001123A/pt not_active IP Right Cessation
- 1990-03-09 KR KR1019900003103A patent/KR0168429B1/ko not_active IP Right Cessation
- 1990-03-09 JP JP2056795A patent/JP2976307B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH02274727A (ja) | 1990-11-08 |
JP2976307B2 (ja) | 1999-11-10 |
CA2010433C (en) | 1999-08-17 |
US5105019A (en) | 1992-04-14 |
EP0387576B1 (de) | 1992-01-15 |
CA2010433A1 (en) | 1990-09-11 |
KR900014464A (ko) | 1990-10-24 |
DE59000031D1 (de) | 1992-02-27 |
ES2045592T3 (es) | 1994-01-16 |
EP0387576A1 (de) | 1990-09-19 |
DE3907911A1 (de) | 1990-09-13 |
MX170684B (es) | 1993-09-07 |
KR0168429B1 (ko) | 1999-03-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FF | Decision: intention to grant | ||
HO | Change of classification |
Free format text: INT.CL.6 C08G 65/30 |
|
FG | Letter patent granted | ||
B21A | Patent or certificate of addition expired [chapter 21.1 patent gazette] |
Free format text: PATENTE EXTINTA EM 09/03/2005 |