DE3577566D1 - Verfahren zur herstellung von poly(tetramethylenether)glykol. - Google Patents
Verfahren zur herstellung von poly(tetramethylenether)glykol.Info
- Publication number
- DE3577566D1 DE3577566D1 DE8585309264T DE3577566T DE3577566D1 DE 3577566 D1 DE3577566 D1 DE 3577566D1 DE 8585309264 T DE8585309264 T DE 8585309264T DE 3577566 T DE3577566 T DE 3577566T DE 3577566 D1 DE3577566 D1 DE 3577566D1
- Authority
- DE
- Germany
- Prior art keywords
- glycol
- tetramethylenether
- poly
- producing poly
- reaction
- 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.)
- Expired - Lifetime
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
- C08G65/04—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 only
- C08G65/06—Cyclic ethers having no atoms other than carbon and hydrogen outside the ring
- C08G65/16—Cyclic ethers having four or more ring atoms
- C08G65/20—Tetrahydrofuran
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
- C07C41/01—Preparation of ethers
- C07C41/18—Preparation of ethers by reactions not forming ether-oxygen bonds
- C07C41/26—Preparation of ethers by reactions not forming ether-oxygen bonds by introduction of hydroxy or O-metal groups
-
- 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)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Polyethers (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/685,017 US4584414A (en) | 1984-12-21 | 1984-12-21 | Process for preparing improved poly(tetramethylene ether) glycol by alcoholysis |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3577566D1 true DE3577566D1 (de) | 1990-06-13 |
Family
ID=24750467
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8585309264T Expired - Lifetime DE3577566D1 (de) | 1984-12-21 | 1985-12-19 | Verfahren zur herstellung von poly(tetramethylenether)glykol. |
Country Status (7)
Country | Link |
---|---|
US (1) | US4584414A (de) |
EP (1) | EP0185553B1 (de) |
JP (1) | JPH0739486B2 (de) |
AT (1) | ATE52523T1 (de) |
CA (1) | CA1270857A (de) |
DE (1) | DE3577566D1 (de) |
SG (1) | SG66690G (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4108045A1 (de) * | 1991-03-13 | 1992-09-17 | Basf Ag | Verfahren zur herstellung von polyoxyalkylenglykol monoethern von einwertigen alkoholen |
DE4108044A1 (de) * | 1991-03-13 | 1992-09-17 | Basf Ag | Verfahren zur herstellung von polyoxyalkylenglykolen |
US5180857A (en) * | 1992-03-10 | 1993-01-19 | E. I. Du Pont De Nemours And Company | Reduction of molecular weight of poly(tetramethylene ether) glycol |
US5410093A (en) * | 1994-02-17 | 1995-04-25 | E. I. Du Pont De Nemours And Company | Method for removing transesterification catalyst from polyether polyols |
DE19522922C2 (de) * | 1995-06-23 | 2000-05-04 | Ind Tech Res Inst | Verfahren zur Herstellung von Polyätherglycolen mit Hydroxygruppen-Endabschluß |
US5684179A (en) * | 1995-12-14 | 1997-11-04 | E. I. Du Pont De Nemours And Company | Method for recovering diacetate esters of polytetramethylene ethers |
US5852218A (en) * | 1995-12-14 | 1998-12-22 | E. I. Du Pont De Nemours And Company | Alkanolysis of polyether polyol esters by reactive distillation |
PT954542E (pt) | 1997-01-17 | 2003-02-28 | Korea Ptg Co Ltd | Processo para a preparacao de diesteres de politetrametileno eter glicol utilizando um catalisador de halloysite |
KR20140117590A (ko) * | 2012-01-26 | 2014-10-07 | 인비스타 테크놀러지스 에스.에이 알.엘. | 개선된 가알칸올분해 프로세스 |
IN2015MN00017A (de) * | 2012-06-22 | 2015-10-16 | Invista Tech Sarl |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3016404A (en) * | 1959-09-28 | 1962-01-09 | Allied Chem | Purification of crude alkylene oxide polyether |
DE2318107A1 (de) * | 1973-04-11 | 1974-11-07 | Basf Ag | Verfahren zur herstellung von reinen polyalkylenaethern |
US4230892A (en) * | 1979-07-20 | 1980-10-28 | E. I. Du Pont De Nemours And Company | Alcoholysis process for preparing poly-(tetramethylene ether) glycol |
DE3107449A1 (de) * | 1981-02-27 | 1982-09-16 | Basf Ag, 6700 Ludwigshafen | Verfahren zur reinigung von polytetramethylenetherglykolen |
-
1984
- 1984-12-21 US US06/685,017 patent/US4584414A/en not_active Expired - Fee Related
-
1985
- 1985-12-17 CA CA000497825A patent/CA1270857A/en not_active Expired - Lifetime
- 1985-12-19 AT AT85309264T patent/ATE52523T1/de not_active IP Right Cessation
- 1985-12-19 EP EP85309264A patent/EP0185553B1/de not_active Expired - Lifetime
- 1985-12-19 DE DE8585309264T patent/DE3577566D1/de not_active Expired - Lifetime
- 1985-12-20 JP JP60285953A patent/JPH0739486B2/ja not_active Expired - Lifetime
-
1990
- 1990-08-13 SG SG666/90A patent/SG66690G/en unknown
Also Published As
Publication number | Publication date |
---|---|
US4584414A (en) | 1986-04-22 |
EP0185553B1 (de) | 1990-05-09 |
SG66690G (en) | 1990-09-21 |
JPH0739486B2 (ja) | 1995-05-01 |
EP0185553A3 (en) | 1987-09-30 |
EP0185553A2 (de) | 1986-06-25 |
JPS61152726A (ja) | 1986-07-11 |
ATE52523T1 (de) | 1990-05-15 |
CA1270857A (en) | 1990-06-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |