ES2104749T3 - Procedimiento para el ajuste del peso molecular medio de polioxialquilenglicoles y derivados de polioxialquileno en la polimerizacion con abertura de anillo de eteres ciclicos y/o acetales catalizada con heteropoliacidos. - Google Patents
Procedimiento para el ajuste del peso molecular medio de polioxialquilenglicoles y derivados de polioxialquileno en la polimerizacion con abertura de anillo de eteres ciclicos y/o acetales catalizada con heteropoliacidos.Info
- Publication number
- ES2104749T3 ES2104749T3 ES92103411T ES92103411T ES2104749T3 ES 2104749 T3 ES2104749 T3 ES 2104749T3 ES 92103411 T ES92103411 T ES 92103411T ES 92103411 T ES92103411 T ES 92103411T ES 2104749 T3 ES2104749 T3 ES 2104749T3
- Authority
- ES
- Spain
- Prior art keywords
- polyoxyalkylene
- derivatives
- procedure
- adjustment
- molecular weight
- 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
-
- 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)
- Heterocyclic Compounds That Contain Two Or More Ring Oxygen Atoms (AREA)
Abstract
PROCEDIMIENTO PARA EL AJUSTE DEL PESO MEDIO MOLECULAR DE POLIOXIALQUILENOGLICOLES Y DERIVADOS DE POLIOXIALQUILENO EN LA POLIMERIZACION DE APERTURA DE ANILLO CATALIZADA POR HETEROPOLIACIDOS DE ETERES Y/O ACETATOS CICLICOS EN PRESENCIA DE COMPUESTOS QUE LIBERAN PROTONES, REGULANDO LA CANTIDAD QUE SE ENCUENTRA EN EL SISTEMA REACTIVO EN EL COMPUESTO CORRESPONDIENTE LIBERADOR DE PROTONES DURANTE EL CURSO DE LA TRANSFORMACION MEDIANTE LA MEDICION DE LA CONDUCTIVIDAD ELECTRICA.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4108047A DE4108047A1 (de) | 1991-03-13 | 1991-03-13 | Verfahren zur einstellung des mittleren molekulargewichts von polyoxyalkylenglykolen und polyoxyalkylenderivaten bei der heteropolysaeure-katalysierten ringoeffnungspolymerisation von cyclischen ethern und(/oder acetalen |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2104749T3 true ES2104749T3 (es) | 1997-10-16 |
Family
ID=6427143
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES92103411T Expired - Lifetime ES2104749T3 (es) | 1991-03-13 | 1992-02-28 | Procedimiento para el ajuste del peso molecular medio de polioxialquilenglicoles y derivados de polioxialquileno en la polimerizacion con abertura de anillo de eteres ciclicos y/o acetales catalizada con heteropoliacidos. |
Country Status (5)
Country | Link |
---|---|
US (1) | US5395959A (es) |
EP (1) | EP0503392B1 (es) |
JP (1) | JP3181668B2 (es) |
DE (2) | DE4108047A1 (es) |
ES (1) | ES2104749T3 (es) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0675146B1 (en) * | 1993-07-29 | 2000-05-31 | Nippon Shokubai Co., Ltd. | High-molecular-weight polydioxolane and process for producing the same |
DE19507399A1 (de) * | 1995-03-03 | 1996-09-05 | Basf Ag | C-C-Dreifachbindungen enthaltende Tetrahydrofuran/But-2-in-1,4-diol-Copolymere |
US5866670A (en) * | 1995-08-21 | 1999-02-02 | Polyplastics Co., Ltd. | Process for preparing polyacetal copolymer |
US5756604A (en) * | 1995-08-31 | 1998-05-26 | Hodogaya Chemical Co., Ltd. | Process for producing polyether, and process for recycling and reusing herteropolyacid |
US6395938B1 (en) | 1998-05-26 | 2002-05-28 | Asahi Kasei Kabushiki Kaisha | Method of regulating molecular weight distribution of polyether glycol |
DE10259136A1 (de) * | 2002-12-18 | 2004-07-01 | Basf Ag | Verfahren zur Herstellung von Tetrahydrofuran-Copolymeren |
DE10359808A1 (de) * | 2003-12-19 | 2005-07-21 | Basf Ag | Verfahren zur Herstellung von Tetrahydrofuran-Copolymeren |
JP5577034B2 (ja) * | 2006-06-20 | 2014-08-20 | 新日鉄住金化学株式会社 | カチオン重合性組成物及びカチオン重合を制御する方法 |
KR101017914B1 (ko) * | 2008-12-18 | 2011-03-04 | 주식회사 효성 | 수분 모니터링에 의한 폴리테트라메틸렌에테르글리콜의 분자량 편차 조절 방법 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1216597A (en) * | 1983-05-23 | 1987-01-13 | Atsushi Aoshima | Process for producing polyetherglycol |
US4658065A (en) * | 1984-03-28 | 1987-04-14 | Asahi Kasei Kogyo Kabushiki Kaisha | Process for producing polyether polyol and a product |
JPS61123626A (ja) * | 1984-11-21 | 1986-06-11 | Asahi Chem Ind Co Ltd | 分子中にポリオキシアルキレン基を有する重合体の製造方法 |
DE3937797A1 (de) * | 1989-11-14 | 1991-05-16 | Basf Ag | Verfahren zur herstellung von polyetherglykolen |
-
1991
- 1991-03-13 DE DE4108047A patent/DE4108047A1/de not_active Withdrawn
-
1992
- 1992-02-28 ES ES92103411T patent/ES2104749T3/es not_active Expired - Lifetime
- 1992-02-28 DE DE59208766T patent/DE59208766D1/de not_active Expired - Lifetime
- 1992-02-28 EP EP92103411A patent/EP0503392B1/de not_active Expired - Lifetime
- 1992-03-12 JP JP05321292A patent/JP3181668B2/ja not_active Expired - Fee Related
-
1993
- 1993-08-20 US US08/110,297 patent/US5395959A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0503392A2 (de) | 1992-09-16 |
JP3181668B2 (ja) | 2001-07-03 |
EP0503392B1 (de) | 1997-08-06 |
JPH0570585A (ja) | 1993-03-23 |
DE59208766D1 (de) | 1997-09-11 |
EP0503392A3 (en) | 1993-08-25 |
DE4108047A1 (de) | 1992-09-17 |
US5395959A (en) | 1995-03-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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