BE845296A - Procede de preparation d'ethers de polysaccharides - Google Patents
Procede de preparation d'ethers de polysaccharidesInfo
- Publication number
- BE845296A BE845296A BE169902A BE169902A BE845296A BE 845296 A BE845296 A BE 845296A BE 169902 A BE169902 A BE 169902A BE 169902 A BE169902 A BE 169902A BE 845296 A BE845296 A BE 845296A
- Authority
- BE
- Belgium
- Prior art keywords
- polysaccharides
- preparing ethers
- ethers
- preparing
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B1/00—Preparatory treatment of cellulose for making derivatives thereof, e.g. pre-treatment, pre-soaking, activation
- C08B1/06—Rendering cellulose suitable for etherification
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B11/00—Preparation of cellulose ethers
- C08B11/02—Alkyl or cycloalkyl ethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B11/00—Preparation of cellulose ethers
- C08B11/02—Alkyl or cycloalkyl ethers
- C08B11/04—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals
- C08B11/08—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals with hydroxylated hydrocarbon radicals; Esters, ethers, or acetals thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B11/00—Preparation of cellulose ethers
- C08B11/193—Mixed ethers, i.e. ethers with two or more different etherifying groups
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/605,794 US4015067A (en) | 1975-08-18 | 1975-08-18 | Method of preparing polysaccharide ethers and apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
BE845296A true BE845296A (fr) | 1977-02-18 |
Family
ID=24425238
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE169902A BE845296A (fr) | 1975-08-18 | 1976-08-18 | Procede de preparation d'ethers de polysaccharides |
Country Status (8)
Country | Link |
---|---|
US (1) | US4015067A (fr) |
JP (1) | JPS5225887A (fr) |
BE (1) | BE845296A (fr) |
BR (1) | BR7605385A (fr) |
CA (1) | CA1067071A (fr) |
DE (1) | DE2636935A1 (fr) |
NL (1) | NL7609047A (fr) |
SE (1) | SE7609134L (fr) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2924330A1 (de) * | 1979-06-15 | 1980-12-18 | Hoechst Ag | Kontinuierliches verfahren und vorrichtung zur herstellung von wasserloeslicher hydroxyalkylcellulose oder deren mischethern |
DE2929011A1 (de) * | 1979-07-18 | 1981-02-12 | Henkel Kgaa | Herstellung von alkylcellulose nach kontinuierlicher verfahrensweise |
DE3140813A1 (de) * | 1981-10-14 | 1983-04-21 | Wolff Walsrode Ag, 3030 Walsrode | Verfahren zur herstellung von celluloseethern |
US4384113A (en) * | 1982-03-23 | 1983-05-17 | The Dow Chemical Company | Stabilization of alkali polysaccharides |
US4419510A (en) * | 1982-07-30 | 1983-12-06 | The Dow Chemical Company | Method for controlling cellulose etherification reaction |
US4452978A (en) * | 1982-11-19 | 1984-06-05 | A. E. Staley Manufacturing Company | Granular starch ethers having reduced pasting temperatures |
US4477657A (en) * | 1983-07-08 | 1984-10-16 | The Dow Chemical Company | Process for preparing hydroxyalkylcellulose ethers |
DE3331997A1 (de) * | 1983-09-05 | 1985-03-21 | Hoechst Ag, 6230 Frankfurt | Verfahren zur reinigung von waessrigen destillationsrueckstaenden waehrend der aufbereitung von bei der herstellung von celluloseethern anfallenden fluessigkeiten |
US4474951A (en) * | 1983-09-27 | 1984-10-02 | The Dow Chemical Company | Hydroxyalkylation of polysaccharides |
DE3417952A1 (de) * | 1984-05-15 | 1985-11-21 | Hoechst Ag, 6230 Frankfurt | Verfahren zur herstellung von wasserloeslichen cellulosemischethern |
US4705809A (en) * | 1986-07-07 | 1987-11-10 | The Dow Chemical Company | Process for preparing a porous polymer article |
US4845206A (en) * | 1987-05-21 | 1989-07-04 | The Dow Chemical Company | Production of cellulose ethers using a premix of alkali and etherifying agent |
JP2722830B2 (ja) * | 1991-03-13 | 1998-03-09 | 日産自動車株式会社 | 内燃機関の排気装置 |
US6261218B1 (en) * | 1998-12-01 | 2001-07-17 | The Dow Chemical Company | Process and apparatus for making low molecular weight cellulose ethers |
ATE359303T1 (de) * | 2001-09-14 | 2007-05-15 | Wolff Cellulosics Gmbh & Co Kg | Verfahren und vorrichtung zur industriellen herstellung von methylhydroxyalkylcellulose |
DE10234426A1 (de) * | 2001-09-14 | 2003-04-03 | Wolff Cellulosics Gmbh & Co Kg | Verfahren und Vorrichtung zur industriellen Herstellung von Methylhydroxyalkylcellulose |
US6881252B2 (en) | 2003-09-23 | 2005-04-19 | Corn Products International, Inc. | Fiber-based product |
EP2428523B1 (fr) | 2010-09-14 | 2017-12-06 | Shin-Etsu Chemical Co., Ltd. | Procédé de production d'hydroxypropylcellulose faiblement substituée |
EP2998340B1 (fr) * | 2014-09-22 | 2019-07-17 | Shin-Etsu Chemical Co., Ltd. | Procédé de production en continu d'éther de cellulose |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA632046A (en) * | 1961-12-05 | E.I. Du Pont De Nemours And Company | Alkali metal salt of carboxymethyl cellulose manufacture | |
US2476331A (en) * | 1945-11-15 | 1949-07-19 | Dow Chemical Co | Method of making methyl carboxymethyl cellulose |
US3278521A (en) * | 1963-02-08 | 1966-10-11 | Hercules Inc | Hydroxypropyl cellulose and process |
US3351583A (en) * | 1964-07-06 | 1967-11-07 | Hercules Inc | Preparation of hydroxypropyl cellulose |
DE1468048B2 (de) * | 1964-11-28 | 1975-02-20 | Henkel & Cie Gmbh, 4000 Duesseldorf | Verfahren zur Herstellung von Hydroxypropyl-methylcellulosen |
DE1543114B2 (de) * | 1965-05-06 | 1977-04-28 | Hoechst Ag, 6000 Frankfurt | Verwendung zweiwelliger schneckenpressen bei der herstellung von alkalicellulose und celluloseaethern |
US3544556A (en) * | 1965-12-30 | 1970-12-01 | Kalle Ag | Process for the preparation of cellulose ethers |
US3915959A (en) * | 1974-03-15 | 1975-10-28 | Crown Zellerbach Corp | Activated alkali cellulose and derivatives formed therefrom and a process for making the same |
-
1975
- 1975-08-18 US US05/605,794 patent/US4015067A/en not_active Expired - Lifetime
-
1976
- 1976-08-13 NL NL7609047A patent/NL7609047A/xx not_active Application Discontinuation
- 1976-08-16 SE SE7609134A patent/SE7609134L/xx unknown
- 1976-08-16 JP JP51097645A patent/JPS5225887A/ja active Pending
- 1976-08-16 CA CA259,145A patent/CA1067071A/fr not_active Expired
- 1976-08-17 DE DE19762636935 patent/DE2636935A1/de active Pending
- 1976-08-17 BR BR7605385A patent/BR7605385A/pt unknown
- 1976-08-18 BE BE169902A patent/BE845296A/fr unknown
Also Published As
Publication number | Publication date |
---|---|
CA1067071A (fr) | 1979-11-27 |
NL7609047A (nl) | 1977-02-22 |
DE2636935A1 (de) | 1977-03-03 |
US4015067A (en) | 1977-03-29 |
JPS5225887A (en) | 1977-02-26 |
BR7605385A (pt) | 1977-08-16 |
SE7609134L (sv) | 1977-02-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
BE829299A (fr) | Procede de preparation d'ethers tertio-alkyliques | |
PT65780A (fr) | Procede de preparation d'ethers de phenols substitues | |
BE845296A (fr) | Procede de preparation d'ethers de polysaccharides | |
FR2301505A1 (fr) | Procede de preparation de 2,2-dimethylolalcanals | |
FR2289477A1 (fr) | Procede de preparation d'ethers perfluores | |
BE829672A (fr) | Procede de preparation d'anhydrides alcenylsucciniques | |
BE858576A (fr) | Procede de preparation d'ethers | |
FR2299307A1 (fr) | Procede de preparation de l'acetate d'allyle | |
FR2313357A1 (fr) | Procede de preparation du 1,4-diaminoanthraquinone-2,3-dinitrile | |
BE841285A (fr) | Procede de preparation d'acetoacetyl-arylamides | |
FR2306962A1 (fr) | Procede de preparation d'alkyleneglycols | |
BE842940A (fr) | Procede de preparation d'oxaphospholannes-1,2, | |
FR2318647A1 (fr) | Procede de preparation de pregnanes 16 alpha-substitues | |
BE865728A (fr) | Procede de preparation du 2,3-dimethylpentanal | |
BE843288A (fr) | Procede de preparation d'indoloquinolizines | |
FR2333805A1 (fr) | Procede de preparation de n,n'-bis-trimethylsilyluree | |
FR2307781A1 (fr) | Procede de preparation d'acenaphtenes | |
BE859636A (fr) | Procede de preparation d'ethers alkyliques tertiaires | |
FR2310998A1 (fr) | Procede de preparation de la 2,5-dimethoxy-4-chloraniline | |
FR2334654A1 (fr) | Procede de preparation d'halogeno-nitrobenzenes | |
BE843910A (fr) | Procede de preparation de 2,5-dioxo-1-oxa-2-phospholanes | |
BE825358A (fr) | Procede de preparation d'ethers glycoliques | |
FR2275442A1 (fr) | Procede de preparation d'acetoxybutanols | |
FR2309490A1 (fr) | Procede de preparation d'une composition d'alumine-beta | |
BE847635A (fr) | Procede de preparation d'ethers dimethyliques de l'hydroquinone, |