DE2519927C2 - Verfahren zum Herstellen von Wasser aufnehmenden, aber darin zu mehr als 50 Gew.-% unlöslichen Celluloseethern - Google Patents
Verfahren zum Herstellen von Wasser aufnehmenden, aber darin zu mehr als 50 Gew.-% unlöslichen CelluloseethernInfo
- Publication number
- DE2519927C2 DE2519927C2 DE2519927A DE2519927A DE2519927C2 DE 2519927 C2 DE2519927 C2 DE 2519927C2 DE 2519927 A DE2519927 A DE 2519927A DE 2519927 A DE2519927 A DE 2519927A DE 2519927 C2 DE2519927 C2 DE 2519927C2
- Authority
- DE
- Germany
- Prior art keywords
- water
- cellulose
- weight
- crosslinking
- etherification
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 28
- 229920003086 cellulose ether Polymers 0.000 title claims description 21
- 238000000034 method Methods 0.000 title claims description 20
- 238000004519 manufacturing process Methods 0.000 title description 7
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 40
- 229920002678 cellulose Polymers 0.000 claims description 28
- 239000001913 cellulose Substances 0.000 claims description 27
- 238000004132 cross linking Methods 0.000 claims description 19
- 238000006266 etherification reaction Methods 0.000 claims description 19
- LVKKFNORSNCNPP-UHFFFAOYSA-N 2,2-bis(prop-2-enoylamino)acetic acid Chemical compound C=CC(=O)NC(C(=O)O)NC(=O)C=C LVKKFNORSNCNPP-UHFFFAOYSA-N 0.000 claims description 9
- 239000003431 cross linking reagent Substances 0.000 claims description 9
- 239000012429 reaction media Substances 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 8
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 5
- 239000002250 absorbent Substances 0.000 claims description 3
- 230000002745 absorbent Effects 0.000 claims description 3
- NEHMKBQYUWJMIP-NJFSPNSNSA-N chloro(114C)methane Chemical compound [14CH3]Cl NEHMKBQYUWJMIP-NJFSPNSNSA-N 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- FDRCDNZGSXJAFP-UHFFFAOYSA-M sodium chloroacetate Chemical compound [Na+].[O-]C(=O)CCl FDRCDNZGSXJAFP-UHFFFAOYSA-M 0.000 claims description 3
- 235000010980 cellulose Nutrition 0.000 description 23
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 21
- 239000003513 alkali Substances 0.000 description 19
- 239000000047 product Substances 0.000 description 13
- 238000006243 chemical reaction Methods 0.000 description 9
- 235000011121 sodium hydroxide Nutrition 0.000 description 8
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- 239000000243 solution Substances 0.000 description 5
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 239000012431 aqueous reaction media Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 239000011541 reaction mixture Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- VRYGRLBNIVQXMY-UHFFFAOYSA-M sodium;acetic acid;chloride Chemical compound [Na+].[Cl-].CC(O)=O VRYGRLBNIVQXMY-UHFFFAOYSA-M 0.000 description 2
- ATACSYDDCNWCLV-UHFFFAOYSA-N 2-chloroacetic acid;sodium Chemical compound [Na].OC(=O)CCl ATACSYDDCNWCLV-UHFFFAOYSA-N 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 230000003113 alkalizing effect Effects 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- FOCAUTSVDIKZOP-UHFFFAOYSA-N chloroacetic acid Chemical compound OC(=O)CCl FOCAUTSVDIKZOP-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- AFOSIXZFDONLBT-UHFFFAOYSA-N divinyl sulfone Chemical compound C=CS(=O)(=O)C=C AFOSIXZFDONLBT-UHFFFAOYSA-N 0.000 description 1
- 239000013051 drainage agent Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 229920003124 powdered cellulose Polymers 0.000 description 1
- 235000019814 powdered cellulose Nutrition 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B15/00—Preparation of other cellulose derivatives or modified cellulose, e.g. complexes
- C08B15/10—Crosslinking of cellulose
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
- A61L15/28—Polysaccharides or their derivatives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B15/00—Preparation of other cellulose derivatives or modified cellulose, e.g. complexes
- C08B15/005—Crosslinking of cellulose derivatives
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Polymers & Plastics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Biochemistry (AREA)
- Organic Chemistry (AREA)
- Animal Behavior & Ethology (AREA)
- Epidemiology (AREA)
- Hematology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Priority Applications (20)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2519927A DE2519927C2 (de) | 1975-05-05 | 1975-05-05 | Verfahren zum Herstellen von Wasser aufnehmenden, aber darin zu mehr als 50 Gew.-% unlöslichen Celluloseethern |
| AR263178A AR206270A1 (es) | 1975-05-05 | 1976-01-01 | Procedimiento para la obtencion de eteres celulosicos absorbentes de agua |
| CH548276A CH597258A5 (instruction) | 1975-05-05 | 1976-04-30 | |
| LU74872A LU74872A1 (instruction) | 1975-05-05 | 1976-04-30 | |
| NL7604682A NL7604682A (nl) | 1975-05-05 | 1976-05-03 | Werkwijze voor het bereiden van wateropnemende celluloseethers. |
| ZA762623A ZA762623B (en) | 1975-05-05 | 1976-05-03 | Water-adsorbing cellulose ethers |
| GB17919/76A GB1552851A (en) | 1975-05-05 | 1976-05-03 | Water adsorbing cellulose ethers |
| BE166692A BE841415A (fr) | 1975-05-05 | 1976-05-03 | Procede de preparation d'ethers cellulosiques absorbant de l'eau |
| SE7605036A SE431458B (sv) | 1975-05-05 | 1976-05-03 | Forfarande for framstellning av vattenupptagande cellulosaetrar |
| AT322576A AT359086B (de) | 1975-05-05 | 1976-05-03 | Verfahren zum herstellen von wasser auf- nehmenden celluloseaethern |
| FI761233A FI761233A7 (instruction) | 1975-05-05 | 1976-05-03 | |
| CA251,678A CA1046511A (en) | 1975-05-05 | 1976-05-03 | Process for the manufacture of water-adsorbing cellulose ethers |
| US05/682,326 US4068068A (en) | 1975-05-05 | 1976-05-03 | Process for the manufacture of water-absorbing cellulose ethers |
| AU13614/76A AU502704B2 (en) | 1975-05-05 | 1976-05-04 | Water-adsorbing cellulose ethers |
| IT49309/76A IT1061235B (it) | 1975-05-05 | 1976-05-04 | Procedimento per la produzione di eteri di cellulosa che assorbono acqua |
| JP51051269A JPS5925802B2 (ja) | 1975-05-05 | 1976-05-04 | 水吸着性だが、少なくとも部分的に水に不溶のセルロ−スエ−テルの製法 |
| ES447574A ES447574A1 (es) | 1975-05-05 | 1976-05-04 | Un procedimiento para la manufactura de eteres celulosicos absorbentes de agua. |
| FR7613225A FR2310358A1 (fr) | 1975-05-05 | 1976-05-04 | Procede de preparation d'ethers cellulosiques absorbant de l'eau |
| DK199076A DK199076A (da) | 1975-05-05 | 1976-05-04 | Fremgangsmade til fremstilling af vandoptagende celluloseethere |
| BR2786/76A BR7602786A (pt) | 1975-05-05 | 1976-06-04 | Processo para a preparacao de eteres de celulose absorvedores de agua |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2519927A DE2519927C2 (de) | 1975-05-05 | 1975-05-05 | Verfahren zum Herstellen von Wasser aufnehmenden, aber darin zu mehr als 50 Gew.-% unlöslichen Celluloseethern |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2519927A1 DE2519927A1 (de) | 1976-11-18 |
| DE2519927C2 true DE2519927C2 (de) | 1986-10-23 |
Family
ID=5945788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2519927A Expired DE2519927C2 (de) | 1975-05-05 | 1975-05-05 | Verfahren zum Herstellen von Wasser aufnehmenden, aber darin zu mehr als 50 Gew.-% unlöslichen Celluloseethern |
Country Status (20)
| Country | Link |
|---|---|
| US (1) | US4068068A (instruction) |
| JP (1) | JPS5925802B2 (instruction) |
| AR (1) | AR206270A1 (instruction) |
| AT (1) | AT359086B (instruction) |
| AU (1) | AU502704B2 (instruction) |
| BE (1) | BE841415A (instruction) |
| BR (1) | BR7602786A (instruction) |
| CA (1) | CA1046511A (instruction) |
| CH (1) | CH597258A5 (instruction) |
| DE (1) | DE2519927C2 (instruction) |
| DK (1) | DK199076A (instruction) |
| ES (1) | ES447574A1 (instruction) |
| FI (1) | FI761233A7 (instruction) |
| FR (1) | FR2310358A1 (instruction) |
| GB (1) | GB1552851A (instruction) |
| IT (1) | IT1061235B (instruction) |
| LU (1) | LU74872A1 (instruction) |
| NL (1) | NL7604682A (instruction) |
| SE (1) | SE431458B (instruction) |
| ZA (1) | ZA762623B (instruction) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5411955A (en) * | 1977-06-29 | 1979-01-29 | Kodama Teizou | High water absorbing chitosan derivative and absorbing agent containing it |
| DE2823736A1 (de) * | 1978-05-31 | 1979-12-13 | Hoechst Ag | Verfahren und vorrichtung zur herstellung von quellfaehiger, vernetzter carboxyalkylcellulose aus natuerlich vorkommender cellulose oder cellulosehydrat und deren verwendung |
| DE2823757C2 (de) * | 1978-05-31 | 1982-10-21 | Hoechst Ag, 6000 Frankfurt | Verfahren zur Herstellung von quellfähigen Fasern oder quellfähigen textilen Flächengebilden |
| JPS57180602A (en) * | 1981-04-30 | 1982-11-06 | Nippon Soda Co Ltd | Production of water-soluble chitosan derivative and film-forming agent comprising same |
| US4609675A (en) * | 1984-08-17 | 1986-09-02 | The Upjohn Company | Stable, high dose, high bulk density ibuprofen granulations for tablet and capsule manufacturing |
| IT1267497B1 (it) * | 1994-11-10 | 1997-02-05 | P & G Spa | Polimero anionico, ad esempio di tipo superassorbente e relativo procedimento di produzione. |
| US5801116A (en) * | 1995-04-07 | 1998-09-01 | Rhodia Inc. | Process for producing polysaccharides and their use as absorbent materials |
| AT413824B (de) * | 2001-11-02 | 2006-06-15 | Chemiefaser Lenzing Ag | Verfahren zur behandlung von lösungsmittelgesponnenen cellulosischen fasern |
| US9610379B2 (en) | 2015-01-23 | 2017-04-04 | Fpinnovations | Absorbent fibres produced from low-substituted carboxymethyl cellulose and the process thereof |
| US10723807B2 (en) * | 2017-03-31 | 2020-07-28 | Shin-Etsu Chemical Co., Ltd. | Method for producing hydroxyalkyl alkyl cellulose |
| WO2020223040A1 (en) * | 2019-05-01 | 2020-11-05 | Dow Global Technologies Llc | Process for producing a crosslinked cellulose ether |
| JP7605754B2 (ja) * | 2019-05-01 | 2024-12-24 | ダウ グローバル テクノロジーズ エルエルシー | 架橋セルロースエーテルを製造するためのプロセス |
| CN113748094A (zh) * | 2019-05-01 | 2021-12-03 | 陶氏环球技术有限责任公司 | 用于生产交联纤维素醚的方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3077468A (en) * | 1960-12-22 | 1963-02-12 | Hercules Powder Co Ltd | Insolubilization of polysaccharide ethers |
| US3272640A (en) * | 1960-12-22 | 1966-09-13 | Hercules Powder Co Ltd | Water insolubilizing and insensitizing process |
| US3589364A (en) * | 1968-03-14 | 1971-06-29 | Buckeye Cellulose Corp | Bibulous cellulosic fibers |
| US3723413A (en) * | 1970-10-26 | 1973-03-27 | Personal Products Co | Water-insoluble fluid-absorptive and retentive materials and methods of making the same |
| DE2357079C2 (de) * | 1973-11-15 | 1982-07-29 | Hoechst Ag, 6000 Frankfurt | Verfahren zum Herstellen von Wasser aufnehmenden, aber darin zu mehr als 50% unlöslichen Celluloseethern |
-
1975
- 1975-05-05 DE DE2519927A patent/DE2519927C2/de not_active Expired
-
1976
- 1976-01-01 AR AR263178A patent/AR206270A1/es active
- 1976-04-30 LU LU74872A patent/LU74872A1/xx unknown
- 1976-04-30 CH CH548276A patent/CH597258A5/xx not_active IP Right Cessation
- 1976-05-03 US US05/682,326 patent/US4068068A/en not_active Expired - Lifetime
- 1976-05-03 BE BE166692A patent/BE841415A/xx not_active IP Right Cessation
- 1976-05-03 SE SE7605036A patent/SE431458B/xx not_active IP Right Cessation
- 1976-05-03 NL NL7604682A patent/NL7604682A/xx not_active Application Discontinuation
- 1976-05-03 ZA ZA762623A patent/ZA762623B/xx unknown
- 1976-05-03 GB GB17919/76A patent/GB1552851A/en not_active Expired
- 1976-05-03 AT AT322576A patent/AT359086B/de not_active IP Right Cessation
- 1976-05-03 CA CA251,678A patent/CA1046511A/en not_active Expired
- 1976-05-03 FI FI761233A patent/FI761233A7/fi not_active Application Discontinuation
- 1976-05-04 AU AU13614/76A patent/AU502704B2/en not_active Expired
- 1976-05-04 JP JP51051269A patent/JPS5925802B2/ja not_active Expired
- 1976-05-04 DK DK199076A patent/DK199076A/da unknown
- 1976-05-04 FR FR7613225A patent/FR2310358A1/fr active Granted
- 1976-05-04 IT IT49309/76A patent/IT1061235B/it active
- 1976-05-04 ES ES447574A patent/ES447574A1/es not_active Expired
- 1976-06-04 BR BR2786/76A patent/BR7602786A/pt unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ATA322576A (de) | 1980-03-15 |
| AR206270A1 (es) | 1976-07-07 |
| AU502704B2 (en) | 1979-08-02 |
| BR7602786A (pt) | 1976-11-09 |
| SE431458B (sv) | 1984-02-06 |
| AT359086B (de) | 1980-10-27 |
| BE841415A (fr) | 1976-11-03 |
| LU74872A1 (instruction) | 1977-12-02 |
| ES447574A1 (es) | 1977-07-01 |
| NL7604682A (nl) | 1976-11-09 |
| JPS51136769A (en) | 1976-11-26 |
| SE7605036L (sv) | 1976-11-06 |
| FR2310358B1 (instruction) | 1978-05-05 |
| DK199076A (da) | 1976-11-06 |
| AU1361476A (en) | 1977-11-10 |
| JPS5925802B2 (ja) | 1984-06-21 |
| GB1552851A (en) | 1979-09-19 |
| FI761233A7 (instruction) | 1976-11-06 |
| US4068068A (en) | 1978-01-10 |
| ZA762623B (en) | 1977-04-27 |
| IT1061235B (it) | 1983-02-28 |
| CA1046511A (en) | 1979-01-16 |
| FR2310358A1 (fr) | 1976-12-03 |
| CH597258A5 (instruction) | 1978-03-31 |
| DE2519927A1 (de) | 1976-11-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2357079C2 (de) | Verfahren zum Herstellen von Wasser aufnehmenden, aber darin zu mehr als 50% unlöslichen Celluloseethern | |
| DE2519927C2 (de) | Verfahren zum Herstellen von Wasser aufnehmenden, aber darin zu mehr als 50 Gew.-% unlöslichen Celluloseethern | |
| CH618448A5 (instruction) | ||
| DE3503458C2 (instruction) | ||
| DE69810900T2 (de) | Agrochemische zusammensetzungen von oberflächenaktiven verbindungen | |
| DE1468017C3 (de) | Hydroxypropylcellulosen und Verfahren zu deren Hers ellung | |
| DE1930957C3 (de) | Wasserlösliches Silbersalz enthaltendes Gel zur Behandlung von Verbrennungen | |
| DE2358150A1 (de) | Verfahren zum herstellen von wasser aufnehmenden, aber darin unloeslichen celluloseaethern | |
| CH681056A5 (instruction) | ||
| DE1418013A1 (de) | Hydrophiles,begrenzt quellbares Vernetzungsprodukt hohen Molekulargewichts eines Dextrans oder eines hydroxylgruppenhaltigen Dextranderivates und Verfahren zur Herstellung derartiger Produkte | |
| DE2840011A1 (de) | Polysaccharidderivate und verfahren zu deren herstellung | |
| DE4026235A1 (de) | Persulfathaltige zubereitung in form eines granulats, 2-komponenten-mittel und verfahren zum entfaerben und blondieren von haaren | |
| DE2634539A1 (de) | Verfahren zur herstellung von saugfaehigen, modifizierten staerkeaethern und deren verwendung | |
| DE2520336A1 (de) | Verfahren zum herstellen von wasser aufnehmenden, aber darin unloeslichen celluloseaethern | |
| DE10308109A1 (de) | Wasserdispergierbare Polysaccharidderivate mit vermindertem Glyoxalgehalt und ein Verfahren zur Absenkung des Glyoxalgehalts in glyoxalvernetzten Polysaccharidderivaten | |
| DD212969A1 (de) | Verfahren zur modifizierung von carboxymethylcellulose | |
| DE2823710A1 (de) | Verfahren zur herstellung von quellfaehiger, vernetzter carboxyalkylcellulose in faserform aus natuerlich vorkommender cellulose und deren verwendung | |
| DE3929400A1 (de) | Neue celluloseether-zusammensetzungen fuer waessrige medien | |
| DE1239672B (de) | Verfahren zur Herstellung von in Wasser ohne Klumpenbildung loeslicher pulverfoermiger Methylcellulose | |
| DE2910374C2 (de) | Fließfähiges Gemisch auf der Basis eines hydrophilen Polymeren, ein Verfahren zu seiner Herstellung und seine Verwendung | |
| DE1443396A1 (de) | Verfahren zur Herstellung von hochmolekularen Vernetzungsprodukten von Polysacchariden oder deren Derivaten oder Polyvinylalkohol und Verwendung der Produkte als Ionenaustauscher | |
| EP0038925B1 (de) | Verfahren zur Herstellung von wasserarmer Alkalicellulose | |
| DD159642A5 (de) | Verfahren zur herstellung eines polymers mit dreidimensionaler struktur eines polyurethanradikals | |
| EP0597364B1 (de) | Reversibel vernetzte Hydrokolloidmischungen mit guter Dispergierbarkeit und Verfahren zu deren Herstellung | |
| DE2512511B2 (de) | Verwendung von modifizierten celluloseaethern in zigarettenfiltern |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8178 | Suspension cancelled | ||
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |