JP2000501765A - ポリテトラメチレンエーテルの二酢酸エステルを回収するための改良された方法 - Google Patents
ポリテトラメチレンエーテルの二酢酸エステルを回収するための改良された方法Info
- Publication number
- JP2000501765A JP2000501765A JP9522107A JP52210797A JP2000501765A JP 2000501765 A JP2000501765 A JP 2000501765A JP 9522107 A JP9522107 A JP 9522107A JP 52210797 A JP52210797 A JP 52210797A JP 2000501765 A JP2000501765 A JP 2000501765A
- Authority
- JP
- Japan
- Prior art keywords
- thf
- anhydride
- acid
- carboxylic
- acetic 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.)
- Granted
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
- C08G65/04—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
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1. THFを、場合によっては1種以上の置換したTHF又はアルキレンオキ シドコモノマーと共に、反応器中で、固体酸触媒及び分子量調節剤としてのカル ボン酸無水物を伴ったカルボン酸を用いて、重合させることによってポリテトラ メチレンエーテルのジエステルを製造する方法において、次の段階: a)該反応器からポリテトラメチレンエーテル、未反応THF及びカ ルボン酸無水物を伴ったカルボン酸の溶液を含んで成る生成物の流 れを回収する段階、 b)減圧で、ポリテトラメチレンエーテルジエステルの溶液からバル クの該未反応THFをフラッシュ蒸発させる段階、そして c)過熱THFを用いて、残留しているTHF、カルボン酸及びカル ボン酸無水物を除去する段階 を含んで成ることを特徴とする方法。 2. 該カルボン酸が酢酸であり、そして該カルボン酸無水物が無水酢酸である 請求項1に記載の方法。 3. THFを、場合によっては1種以上の置換したTHF又はアルキレンオキ シドコモノマー反応物と共に、反応器中で、固体酸触媒及び分子量調節剤として のカルボン酸無水物を伴ったカルボン酸を用いて、重合させることによってポリ テトラメチレンエーテルのジエステルを製造する方法において、未反応のカルボ ン酸及びカルボン酸無水物をポリテトラメチレンエーテルジエステル重合生成物 から除去するために過熱THFを用いる段階を含んで成ることを特徴とする方法 。 4. 該カルボン酸が酢酸であり、そして該カルボン酸無水物が無水酢 酸である請求項3に記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/572,598 | 1995-12-14 | ||
US08/572,598 US5684179A (en) | 1995-12-14 | 1995-12-14 | Method for recovering diacetate esters of polytetramethylene ethers |
PCT/US1996/019355 WO1997021757A1 (en) | 1995-12-14 | 1996-12-05 | Improved method for recovering diacetate esters of polytetramethylene ethers |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2000501765A true JP2000501765A (ja) | 2000-02-15 |
JP3901219B2 JP3901219B2 (ja) | 2007-04-04 |
Family
ID=24288554
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52210797A Expired - Fee Related JP3901219B2 (ja) | 1995-12-14 | 1996-12-05 | ポリテトラメチレンエーテルの二酢酸エステルを回収するための改良された方法 |
Country Status (10)
Country | Link |
---|---|
US (1) | US5684179A (ja) |
EP (1) | EP0866825B1 (ja) |
JP (1) | JP3901219B2 (ja) |
KR (1) | KR100449304B1 (ja) |
CN (1) | CN1080279C (ja) |
AU (1) | AU1147097A (ja) |
DE (1) | DE69608305T2 (ja) |
RU (1) | RU2155778C2 (ja) |
TW (1) | TW466249B (ja) |
WO (1) | WO1997021757A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014139304A (ja) * | 2012-12-18 | 2014-07-31 | Mitsubishi Chemicals Corp | ポリアルキレンエーテルグリコールのジエステルの製造方法及びポリアルキレンエーテルグリコールの製造方法 |
JP2014181327A (ja) * | 2013-03-21 | 2014-09-29 | Mitsubishi Chemicals Corp | ポリアルキレンエーテルグリコールジエステルの製造方法 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3659042B2 (ja) | 1999-01-14 | 2005-06-15 | 三菱化学株式会社 | ポリアルキレンエーテルグリコールの製造方法 |
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 |
US20070117949A1 (en) * | 2005-11-22 | 2007-05-24 | Palmer Charles F Jr | Spandex from poly(tetramethylene-co-ethyleneether) glycols having low ethyleneether content |
DE102006009150B4 (de) * | 2006-02-24 | 2018-07-19 | Basf Se | Verfahren zur Herstellung von Polytetrahydrofuran oder Tetrahydrofuran-Copolymeren |
US20140378712A1 (en) * | 2012-01-26 | 2014-12-25 | Invista North America S.A.R.L. | Alkanolysis process |
TW201529636A (zh) * | 2013-12-19 | 2015-08-01 | Invista Tech Sarl | 經改良的聚四亞甲基醚二醇製造方法 |
Family Cites Families (10)
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 |
US4120903A (en) * | 1977-03-30 | 1978-10-17 | E. I. Du Pont De Nemours And Company | Method for preparing poly(tetramethylene ether) glycol |
GB2025995B (en) * | 1978-06-28 | 1982-07-14 | Du Pont | Preparation of copolyether glycols |
US4167115A (en) * | 1978-06-29 | 1979-09-11 | Fischer & Porter Company | Oscillating-ball flowmeter |
US4306058A (en) * | 1980-11-19 | 1981-12-15 | E. I. Du Pont De Nemours And Company | Method for reducing oligomeric cyclic ether content of a polymerizate |
DE3107449A1 (de) * | 1981-02-27 | 1982-09-16 | Basf Ag, 6700 Ludwigshafen | Verfahren zur reinigung von polytetramethylenetherglykolen |
US4584414A (en) * | 1984-12-21 | 1986-04-22 | E. I. Du Pont De Nemours And Company | Process for preparing improved poly(tetramethylene ether) glycol by alcoholysis |
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 |
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 |
-
1995
- 1995-12-14 US US08/572,598 patent/US5684179A/en not_active Expired - Lifetime
-
1996
- 1996-09-25 TW TW085111735A patent/TW466249B/zh not_active IP Right Cessation
- 1996-12-05 JP JP52210797A patent/JP3901219B2/ja not_active Expired - Fee Related
- 1996-12-05 RU RU98113157/04A patent/RU2155778C2/ru not_active IP Right Cessation
- 1996-12-05 KR KR10-1998-0704467A patent/KR100449304B1/ko not_active IP Right Cessation
- 1996-12-05 WO PCT/US1996/019355 patent/WO1997021757A1/en active IP Right Grant
- 1996-12-05 CN CN96198981A patent/CN1080279C/zh not_active Expired - Fee Related
- 1996-12-05 EP EP96942894A patent/EP0866825B1/en not_active Expired - Lifetime
- 1996-12-05 DE DE69608305T patent/DE69608305T2/de not_active Expired - Lifetime
- 1996-12-05 AU AU11470/97A patent/AU1147097A/en not_active Abandoned
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014139304A (ja) * | 2012-12-18 | 2014-07-31 | Mitsubishi Chemicals Corp | ポリアルキレンエーテルグリコールのジエステルの製造方法及びポリアルキレンエーテルグリコールの製造方法 |
JP2014181327A (ja) * | 2013-03-21 | 2014-09-29 | Mitsubishi Chemicals Corp | ポリアルキレンエーテルグリコールジエステルの製造方法 |
Also Published As
Publication number | Publication date |
---|---|
CN1080279C (zh) | 2002-03-06 |
US5684179A (en) | 1997-11-04 |
KR100449304B1 (ko) | 2004-11-16 |
DE69608305D1 (de) | 2000-06-15 |
RU2155778C2 (ru) | 2000-09-10 |
WO1997021757A1 (en) | 1997-06-19 |
AU1147097A (en) | 1997-07-03 |
JP3901219B2 (ja) | 2007-04-04 |
CN1204351A (zh) | 1999-01-06 |
EP0866825B1 (en) | 2000-05-10 |
EP0866825A1 (en) | 1998-09-30 |
KR19990072136A (ko) | 1999-09-27 |
TW466249B (en) | 2001-12-01 |
DE69608305T2 (de) | 2000-12-28 |
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