CN1085985C - 生产聚四亚甲基醚二乙酸酯的改进方法 - Google Patents
生产聚四亚甲基醚二乙酸酯的改进方法 Download PDFInfo
- Publication number
- CN1085985C CN1085985C CN96198977A CN96198977A CN1085985C CN 1085985 C CN1085985 C CN 1085985C CN 96198977 A CN96198977 A CN 96198977A CN 96198977 A CN96198977 A CN 96198977A CN 1085985 C CN1085985 C CN 1085985C
- Authority
- CN
- China
- Prior art keywords
- thf
- carboxylic acid
- reactor
- reaction
- acid anhydride
- 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 - Fee Related
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
- C08G65/26—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
- C08G65/2696—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 characterised by the process or apparatus used
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyethers (AREA)
Abstract
Description
Claims (6)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US57232395A | 1995-12-14 | 1995-12-14 | |
US08/572,323 | 1995-12-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1204349A CN1204349A (zh) | 1999-01-06 |
CN1085985C true CN1085985C (zh) | 2002-06-05 |
Family
ID=24287315
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN96198977A Expired - Fee Related CN1085985C (zh) | 1995-12-14 | 1996-12-05 | 生产聚四亚甲基醚二乙酸酯的改进方法 |
Country Status (10)
Country | Link |
---|---|
US (1) | US5962727A (zh) |
EP (1) | EP0866823B1 (zh) |
JP (1) | JP2000501766A (zh) |
KR (1) | KR100474614B1 (zh) |
CN (1) | CN1085985C (zh) |
AU (1) | AU1329297A (zh) |
DE (1) | DE69627186T2 (zh) |
RU (1) | RU2184748C2 (zh) |
TW (1) | TW343201B (zh) |
WO (1) | WO1997021756A1 (zh) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE1012947A6 (fr) * | 1999-10-27 | 2001-06-05 | Pantochim Sa | Procede de production de diester d'ester de polytetramethylene a faible indice de coloration. |
US6989432B2 (en) | 2002-01-10 | 2006-01-24 | Invista North America S.A.R.L. | Copolymers of tetrahydrofuran, ethylene oxide and an additional cyclic ether |
US20140323772A1 (en) * | 2013-04-25 | 2014-10-30 | Invista North America S.A R.L. | Polyether glycol manufacturing process |
US10037722B2 (en) | 2015-11-03 | 2018-07-31 | Medtronic Minimed, Inc. | Detecting breakage in a display element |
RU2647471C2 (ru) * | 2016-02-05 | 2018-03-15 | Открытое акционерное общество "Ирбитский химико-фармацевтический завод" | Способ получения сульфокамфорной кислоты |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4163115A (en) * | 1976-03-31 | 1979-07-31 | E. I. Du Pont De Nemours And Company | Preparation of esters of poly-(tetramethylene ether) glycol |
US5130470A (en) * | 1991-03-27 | 1992-07-14 | E. I. Du Pont De Nemours And Company | Polymerization of tetrahydrofuran using a fluorinated acidic catalyst and maleic acid/maleic anhydride mixture as molecular weight control agent |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4120903A (en) * | 1977-03-30 | 1978-10-17 | E. I. Du Pont De Nemours And Company | Method for preparing poly(tetramethylene ether) glycol |
US4167115A (en) * | 1978-06-29 | 1979-09-11 | Fischer & Porter Company | Oscillating-ball flowmeter |
US5118869A (en) * | 1991-02-13 | 1992-06-02 | E. I. Du Pont De Nemours And Company | Polymerizing tetrahydrofuran to produce polytetramethylene ether glycol using a modified fluorinated resin catalyst containing sulfonic acid groups |
US5149862A (en) * | 1991-02-26 | 1992-09-22 | E. I. Du Pont De Nemours And Company | Preparation of polytetramethylene ether glycol using an acidic zirconia catalyst |
US5282929A (en) * | 1992-03-06 | 1994-02-01 | E. I. Du Pont De Nemours And Company | Reducing molecular weight distribution of polyether glycols by short-path distillation |
US5344964A (en) * | 1993-11-24 | 1994-09-06 | Industrial Technology Research Institute | Method for preparing ester end-capped polyalkylene ether |
-
1996
- 1996-10-01 TW TW085111944A patent/TW343201B/zh not_active IP Right Cessation
- 1996-12-05 KR KR10-1998-0704466A patent/KR100474614B1/ko not_active IP Right Cessation
- 1996-12-05 WO PCT/US1996/019356 patent/WO1997021756A1/en active IP Right Grant
- 1996-12-05 JP JP9522108A patent/JP2000501766A/ja active Pending
- 1996-12-05 CN CN96198977A patent/CN1085985C/zh not_active Expired - Fee Related
- 1996-12-05 RU RU98112789/04A patent/RU2184748C2/ru not_active IP Right Cessation
- 1996-12-05 EP EP96944755A patent/EP0866823B1/en not_active Expired - Lifetime
- 1996-12-05 AU AU13292/97A patent/AU1329297A/en not_active Abandoned
- 1996-12-05 DE DE69627186T patent/DE69627186T2/de not_active Expired - Lifetime
-
1997
- 1997-11-26 US US08/980,128 patent/US5962727A/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4163115A (en) * | 1976-03-31 | 1979-07-31 | E. I. Du Pont De Nemours And Company | Preparation of esters of poly-(tetramethylene ether) glycol |
US5130470A (en) * | 1991-03-27 | 1992-07-14 | E. I. Du Pont De Nemours And Company | Polymerization of tetrahydrofuran using a fluorinated acidic catalyst and maleic acid/maleic anhydride mixture as molecular weight control agent |
Also Published As
Publication number | Publication date |
---|---|
KR19990072135A (ko) | 1999-09-27 |
TW343201B (en) | 1998-10-21 |
RU2184748C2 (ru) | 2002-07-10 |
EP0866823A1 (en) | 1998-09-30 |
DE69627186D1 (de) | 2003-05-08 |
KR100474614B1 (ko) | 2005-05-16 |
US5962727A (en) | 1999-10-05 |
DE69627186T2 (de) | 2004-01-29 |
CN1204349A (zh) | 1999-01-06 |
AU1329297A (en) | 1997-07-03 |
WO1997021756A1 (en) | 1997-06-19 |
JP2000501766A (ja) | 2000-02-15 |
EP0866823B1 (en) | 2003-04-02 |
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PB01 | Publication | ||
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SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
REG | Reference to a national code |
Ref country code: HK Ref legal event code: GR Ref document number: 1038337 Country of ref document: HK |
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ASS | Succession or assignment of patent right |
Owner name: INVISTA TECH SARL Free format text: FORMER OWNER: E. I. DU PONT DE NEMOURS AND CO. Effective date: 20060113 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20060113 Address after: Zurich Switzerland Patentee after: INVISTA TECHNOLOGIES S.A.R.L. Address before: Wilmington, Delaware, USA Patentee before: E. I. du Pont de Nemours and Co. |
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20020605 Termination date: 20151205 |
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EXPY | Termination of patent right or utility model |