BE674542A - - Google Patents
Info
- Publication number
- BE674542A BE674542A BE674542DA BE674542A BE 674542 A BE674542 A BE 674542A BE 674542D A BE674542D A BE 674542DA BE 674542 A BE674542 A BE 674542A
- Authority
- BE
- Belgium
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C31/00—Saturated compounds having hydroxy or O-metal groups bound to acyclic carbon atoms
- C07C31/18—Polyhydroxylic acyclic alcohols
- C07C31/20—Dihydroxylic alcohols
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/24—Preparation of carboxylic acid esters by reacting carboxylic acids or derivatives thereof with a carbon-to-oxygen ether bond, e.g. acetal, tetrahydrofuran
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
- C07C69/02—Esters of acyclic saturated monocarboxylic acids having the carboxyl group bound to an acyclic carbon atom or to hydrogen
- C07C69/12—Acetic acid esters
- C07C69/16—Acetic acid esters of dihydroxylic compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Polyethers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF44840A DE1226560B (de) | 1964-12-30 | 1964-12-30 | Verfahren zur Herstellung von Butylenglykoldiacetaten |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE674542A true BE674542A (de) | 1966-06-30 |
Family
ID=7100216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE674542D BE674542A (de) | 1964-12-30 | 1965-12-30 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3433829A (de) |
| BE (1) | BE674542A (de) |
| CH (1) | CH454110A (de) |
| DE (1) | DE1226560B (de) |
| GB (1) | GB1128340A (de) |
| NL (1) | NL6516827A (de) |
Families Citing this family (20)
| 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 |
| US4243799A (en) * | 1978-01-14 | 1981-01-06 | Basf Aktiengesellschaft | Polymerization of tetrahydrofuran |
| US4189566A (en) * | 1978-01-14 | 1980-02-19 | Basf Aktiengesellschaft | Polymerization of tetrahydrofuran |
| DE3042960A1 (de) * | 1980-11-14 | 1982-07-08 | Basf Ag, 6700 Ludwigshafen | Verfahren zur depolymerisation von polytetramethylenglykolether |
| US5208385A (en) * | 1992-02-19 | 1993-05-04 | Arco Chemical Technology, L.P. | Preparation of tetrahydrofuran polymers having a narrow molecular weight distribution using an amorphous silica-alumina catalyst |
| US5210283A (en) * | 1992-05-18 | 1993-05-11 | Arco Chemical Technology, L.P. | Synthesis of tetrahydrofuran polymers using calcined silica-alumina or beaching earth catalysts |
| US6069226A (en) * | 1992-09-04 | 2000-05-30 | Basf Aktiengesellschaft | Process for the preparation of polytetramethylene ether glycol diester using an aluminosilicate type catalyst |
| US6207793B1 (en) * | 1997-01-17 | 2001-03-27 | Korea Ptg Co., Ltd. | Process for production of polytetramethylene-ether-glycol-diester using halloysite catalyst |
| ATE202374T1 (de) * | 1997-09-05 | 2001-07-15 | Basf Ag | Verbessertes verfahren zur herstellung von polytetrahydrofuran |
| DE19755415A1 (de) | 1997-12-12 | 1999-06-17 | Basf Ag | Katalysator und Verfahren zur Herstellung von Polytetrahydrofuran |
| DE19801462A1 (de) | 1998-01-16 | 1999-07-22 | Basf Ag | Katalysator und Verfahren zur Herstellung von Polytetrahydrofuran |
| DE10242286A1 (de) | 2002-09-12 | 2004-03-18 | Basf Ag | Verfahren zur Herstellung von Mono- und Diestern des Polytetrahydrofurans und der Tetrahydrofuran-Copolymere |
| DE10261484A1 (de) | 2002-12-23 | 2004-07-01 | Basf Ag | Verfahren zur Polymerisation cyclischer Ether |
| DE10330721A1 (de) | 2003-07-08 | 2005-01-27 | Basf Ag | Verfahren zur Gewinnung von Oligomeren des Polytetrahydrofurans oder der Tetrahydrofuran-Copolymere |
| DE102006009150B4 (de) | 2006-02-24 | 2018-07-19 | Basf Se | Verfahren zur Herstellung von Polytetrahydrofuran oder Tetrahydrofuran-Copolymeren |
| DE102006027233A1 (de) | 2006-06-09 | 2007-12-13 | Basf Ag | Verfahren zur Herstellung von Polytetrahydrofuran oder Tetrahydrofuran-Copolymeren |
| US8138283B2 (en) | 2007-01-19 | 2012-03-20 | Basf Se | Method for changing the predefined mean molecular weight Mn during the continuous production of polytetrahydrofuranes or THF copolymers |
| CN101558099B (zh) | 2007-09-06 | 2012-08-08 | 巴斯夫欧洲公司 | 解聚含有聚四氢呋喃的单酯和/或二酯的混合物的方法 |
| WO2010060957A1 (de) * | 2008-11-27 | 2010-06-03 | Basf Se | Vorrichtung zur destillativen auftrennung |
| CN112679725B (zh) * | 2020-12-28 | 2023-05-26 | 江苏美思德化学股份有限公司 | 一种低分子聚醚乙酰化的方法 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1710424A (en) * | 1925-12-18 | 1929-04-23 | Ig Farbenindustrie Ag | Production of polyalkylene glycol esters |
| US2576268A (en) * | 1947-05-24 | 1951-11-27 | Celanese Corp | Cellulose ester plasticized with a 1-4 butandiol diester |
| US2499725A (en) * | 1948-02-06 | 1950-03-07 | Du Pont | Process for making esters of monocarboxylic acids |
| US2525145A (en) * | 1948-10-29 | 1950-10-10 | Universal Oil Prod Co | Supported phosphoric acid-boric acid catalyst and its manufacture |
| US2778855A (en) * | 1953-06-01 | 1957-01-22 | Shell Dev | Production of hydroxy ethers |
| US2993913A (en) * | 1959-01-07 | 1961-07-25 | Quaker Oats Co | Preparation of 2, 2-bis (hydroxymethyl) tetrahydrofuran |
| GB905854A (en) * | 1960-05-14 | 1962-09-12 | Distillers Co Yeast Ltd | Production of t-butyl acetate |
-
1964
- 1964-12-30 DE DEF44840A patent/DE1226560B/de active Pending
-
1965
- 1965-12-14 US US513827A patent/US3433829A/en not_active Expired - Lifetime
- 1965-12-23 NL NL6516827A patent/NL6516827A/xx unknown
- 1965-12-27 CH CH1786165A patent/CH454110A/de unknown
- 1965-12-30 GB GB55302/65A patent/GB1128340A/en not_active Expired
- 1965-12-30 BE BE674542D patent/BE674542A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1226560B (de) | 1966-10-13 |
| GB1128340A (en) | 1968-09-25 |
| US3433829A (en) | 1969-03-18 |
| NL6516827A (de) | 1966-07-01 |
| CH454110A (de) | 1968-04-15 |