WO2006120194A1 - Process for grinding cellulose ether - Google Patents
Process for grinding cellulose ether Download PDFInfo
- Publication number
- WO2006120194A1 WO2006120194A1 PCT/EP2006/062159 EP2006062159W WO2006120194A1 WO 2006120194 A1 WO2006120194 A1 WO 2006120194A1 EP 2006062159 W EP2006062159 W EP 2006062159W WO 2006120194 A1 WO2006120194 A1 WO 2006120194A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cellulose
- cellulose ether
- grinding
- cationic surfactant
- methyl
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D101/00—Coating compositions based on cellulose, modified cellulose, or cellulose derivatives
- C09D101/08—Cellulose derivatives
- C09D101/26—Cellulose ethers
- C09D101/28—Alkyl ethers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/30—Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
- A61K47/36—Polysaccharides; Derivatives thereof, e.g. gums, starch, alginate, dextrin, hyaluronic acid, chitosan, inulin, agar or pectin
- A61K47/38—Cellulose; Derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/38—Polysaccharides or derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/38—Polysaccharides or derivatives thereof
- C04B24/383—Cellulose or derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
-
- 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
-
- 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
- C08B11/20—Post-etherification treatments of chemical or physical type, e.g. mixed etherification in two steps, including purification
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/12—Powdering or granulating
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/12—Powdering or granulating
- C08J3/124—Treatment for improving the free-flowing characteristics
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
- C08L1/08—Cellulose derivatives
- C08L1/26—Cellulose ethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
- C08L1/08—Cellulose derivatives
- C08L1/26—Cellulose ethers
- C08L1/28—Alkyl ethers
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/44—Thickening, gelling or viscosity increasing agents
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2301/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
- C08J2301/08—Cellulose derivatives
- C08J2301/26—Cellulose ethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2301/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
- C08J2301/08—Cellulose derivatives
- C08J2301/26—Cellulose ethers
- C08J2301/28—Alkyl ethers
Definitions
- the invention relates to a process for grinding cellulose ether.
- US 4,076,935 describes a process for grinding cellulose compounds using a vibration mill in the presence of air and sufficient water to yield a product having a water content of from 2 to 10 percent by weight (wt%).
- US 2,720,464 discloses cellulose ether compositions comprising cellulose ether and a surface-active agent.
- the surface-active agent can be sodium lauryl sulfate.
- the cellulose ether compositions are in the form of dry powders, which are prepared by first drying the composition and subsequently grinding it.
- DE 1 068 685 discloses a process for grinding cellulose ether in the presence of a surface-active compound using a hammer mill.
- the surface- active agent is sprayed over the cellulose ether inside the hammer mill while the cellulose ether is being ground.
- the processes of the prior art have the problem that the moist cellulose ether agglomerates and/or adheres to the walls of the mill causing loss of product. Furthermore, the products obtained with these processes exhibit a considerable risk of dust explosions upon handling and when stored.
- the object of the present invention is to provide an improved process for grinding cellulose ether and to provide a cellulose ether product with a reduced risk of dust explosions.
- a process for grinding cellulose ether comprising the steps of: a) grinding a cellulose ether comprising 20 to 90 wt% of water, based on the total weight of cellulose ether and water, and a cationic surfactant in a mill; and b) optionally drying the mixture while grinding, prior to or following the step of grinding.
- the process of the invention results in finely sized products that are antistatic and hence do not cluster or agglomerate.
- a further advantage is that the cellulose ether does not stick to the walls of the mill, rendering a higher product yield.
- the use of cationic surfactants leads to cellulose ether compositions which are less biodegradable than compositions comprising anionic surfactants, which is particularly advantageous in applications where good stability against (bio)degradation is important, for example in wall paper adhesive applications.
- the improved biodegradability may effect a longer storage life of stock solutions of the cellulose ether.
- the cationic surfactants are able to adsorb to the cellulose ether more efficiently than anionic surfactants, resulting in a finely sized cellulose ether product which is more antistatic, exhibits less clustering, and reduces the risk of dust explosion upon handling and storage.
- the cellulose ether used in the process of the invention comprises 20-90 wt% water, based on the total weight of the cellulose ether and water.
- the cellulose ether comprises 25-85 wt% water, more preferably 30-80 wt% water, and most preferably 40-80 wt% water.
- the cellulose ether of the present invention can be any cellulose ether known in the art.
- the cellulose ether can be non-ionic and anionic.
- non-ionic cellulose ethers are methyl cellulose, hydroxyethyl cellulose, methyl hydroxyethyl cellulose, ethyl hydroxyethyl cellulose, methyl ethyl hydroxyethyl cellulose, hydroxypropyl hydroxyethyl cellulose, methyl hydroxypropyl hydroxyethyl cellulose, hydroxypropyl cellulose, methyl hydroxypropyl cellulose, and ethyl hydroxypropyl cellulose.
- anionic cellulose ethers are carboxymethyl cellulose, hydroxyethyl carboxymethyl cellulose, hydroxypropyl carboxymethyl cellulose, sulfoethyl cellulose, hydroxyethyl sulfoethyl cellulose, and hydroxypropyl sulfoethyl cellulose.
- Further examples of these cellulose ethers are hydrophobically modified cellulose ethers, which are also known in the art, for example from EP 0 991 668 and EP 1 117 694. Also mixtures of any of the above cellulose ethers can be used in the process of the invention.
- the cationic surfactant can be any cationic surfactant known in the art.
- the cationic surfactant is a quaternary ammonium compound.
- the cationic surfactant may be a quaternary ammonium compound according to the formulae Mil:
- Ri to R 3 are the same or different and are hydrocarbons having from 8 to 22 carbon atoms, or at least one of RrR 3 is a polyethoxylate group having from 2 to 20 EO units and the remaining groups of Ri to R 3 are hydrocarbons having from 8 to 22 carbon atoms, and X " is an anion selected from chlorine, bromide or methylsulfate.
- Ri to R 3 are hydrocarbons having from 10 to 20 carbon atoms.
- cationic surfactants are tetradecyl trimethyl ammonium chloride, hexadecyl trimethyl ammonium chloride, coco trimethyl ammonium chloride, tallow trimethyl ammonium chloride, hydrogenated tallow trimethyl ammonium chloride, oleyl trimethyl ammonium chloride, hydrogenated tallow trimethyl ammonium methosulfate, didecyl dimethyl ammonium chloride, dicoco dimethyl ammonium chloride, di(hydrogenated tallow) dimethyl ammonium choride, ditallow dimethyl ammonium chloride, cocobenzyl dimethyl ammonium chloride, alkylpolyglycolether ammonium methyl chloride, and alkylpolyglycolether ammonium methyl sulfate.
- cationic surfactants can be found in the brochure "Product overview Surfactants Europe” of June 2002 from Akzo Nobel NV.
- a preferred cationic surfactant is didecyl dimethyl ammonium chloride. This surfactant has enhanced biocidal properties compared to other cationic surfactants, enabling, if necessary, a longer storage life of the cellulose ether without it being deteriorated by bacteria.
- the amount of cationic surfactant in the cellulose ether is at least 0.001 wt%, preferably at least 0.005 wt%, and most preferably at least 0.01 wt%, based on the total weight of the dry cellulose ether, and at most 1 wt%, preferably at most 0.5 wt%, and most preferably at most 0.1 wt%.
- the mill used in the process of the present invention can be any mill suitable for grinding cellulose ethers.
- mills are hammer mills, ball mills, vibration mills, and impact mills.
- a liquid a gas flow or a combination of both can be added to and/or flown over the cellulose ether present in the mill.
- the cellulose ether can be ground under cryogenic conditions.
- Preferred mills are those in which a gas stream can be flown over the cellulose ether while the cellulose ether is ground.
- An example of such a mill is an impact mill described in EP 0 347 948, DE 38 11 910 or EP 0 775 526.
- the gas stream can be an inert gas (such as nitrogen and carbon dioxide), air, a mixture of inert gas and steam, or a mixture of steam and air.
- the gas stream may be heated, be at ambient temperature or may be cooled.
- the gas stream is heated to a temperature between 100 0 C and 25O 0 C.
- use of a heated gas stream in the impact mill enables simultaneous grinding and effective drying of the cellulose ether, which is more cost effective and simplifies the process.
- the cationic surfactant is preferably added to the cellulose ether just before the cellulose ether is introduced into the mill. In this way loss of surfactant, for example during the preparation of the cellulose ether or transport to the mill, is prevented.
- the present invention further pertains to cellulose ether comprising a cationic surfactant obtainable by any of the above-mentioned processes.
- the amount of water in the cellulose ether of the invention is less than 10 wt%, preferably less than 6 wt%, more preferably less than 4 wt%, and most preferably less than 2 wt%, based on the weight of dry cellulose ether.
- the mean particle size of the cellulose ether particles obtained with the process of the invention can be any mean particle size available in the art.
- the mean particle size may typically be between 0.05 and 1 mm.
- the cellulose ether of the invention can be suitably used in a wide variety of applications, such as in cement, gypsum, coating compositions, as a thickening agent or as a binder in colouring agents, and in pharmaceuticals.
- EHEC ethyl hydroxyethyl cellulose
- the EHEC/water lumps have diameters of between 10 and 20 mm.
- bag A 0.01 part by weight of didecyl dimethyl ammonium chloride was added.
- bag B 0.01 part by weight of C14-C1 6 olefin sulfonate was added.
- No surfactant was added in the third bag (bag C).
- the ingredients inside bags A to C were agitated with mechanical force on the outside of each bag.
- the EHEC/water lumps in bag 1 containing cationic surfactant were well dispersed after agitation and had broken up into pieces to form particles having a diameter of 2-5 mm. No adsorption was observed on the walls of the plastic bag.
- the EHEC/water lumps containing anionic surfactant in bag 2 were dispersed after agitation and had broken up into pieces to form particles having a diameter of 5-8 mm. Some solid material had adsorbed onto the inner wall of bag 2. The inner wall was further observed to be sticky.
- the EHEC/water lumps without surfactant in bag 3 had agglomerated to form one big lump.
- the inner wall of the plastic bag was sticky.
- EHEC ethyl hydroxyethyl cellulose
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Materials Engineering (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Biochemistry (AREA)
- Inorganic Chemistry (AREA)
- Wood Science & Technology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Epidemiology (AREA)
- Pharmacology & Pharmacy (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Medicinal Preparation (AREA)
- Paints Or Removers (AREA)
Abstract
Description
Claims
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRPI0608962-3A BRPI0608962A2 (en) | 2005-05-12 | 2006-05-09 | process for milling cellulose ether |
JP2008510569A JP5078097B2 (en) | 2005-05-12 | 2006-05-09 | How to grind cellulose ether |
AT06755100T ATE518902T1 (en) | 2005-05-12 | 2006-05-09 | METHOD FOR GRINDING CELLULOSE ETHER |
MX2007014091A MX2007014091A (en) | 2005-05-12 | 2006-05-09 | Process for grinding cellulose ether. |
KR1020077025967A KR101311319B1 (en) | 2005-05-12 | 2006-05-09 | Process for grinding cellulose ether |
EP06755100A EP1879943B1 (en) | 2005-05-12 | 2006-05-09 | Process for grinding cellulose ether |
US11/913,891 US9523014B2 (en) | 2005-05-12 | 2006-05-09 | Process for grinding cellulose ether |
CN2006800161416A CN101175793B (en) | 2005-05-12 | 2006-05-09 | Process for grinding cellulose ether |
KR1020137013120A KR20130064143A (en) | 2005-05-12 | 2006-05-09 | Process for grinding cellulose ether |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05103978.2 | 2005-05-12 | ||
EP05103978 | 2005-05-12 | ||
US69365705P | 2005-06-24 | 2005-06-24 | |
US60/693,657 | 2006-06-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006120194A1 true WO2006120194A1 (en) | 2006-11-16 |
Family
ID=34939809
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2006/062159 WO2006120194A1 (en) | 2005-05-12 | 2006-05-09 | Process for grinding cellulose ether |
Country Status (11)
Country | Link |
---|---|
US (1) | US9523014B2 (en) |
EP (1) | EP1879943B1 (en) |
JP (1) | JP5078097B2 (en) |
KR (2) | KR101311319B1 (en) |
CN (1) | CN101175793B (en) |
AT (1) | ATE518902T1 (en) |
BR (1) | BRPI0608962A2 (en) |
ES (1) | ES2369038T3 (en) |
MX (1) | MX2007014091A (en) |
RU (1) | RU2415882C2 (en) |
WO (1) | WO2006120194A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008122344A1 (en) * | 2007-04-07 | 2008-10-16 | Dow Wolff Cellulosics Gmbh | Methylhydroxyethylhydroxypropylcellulose (mhehpc) in mineral-bound building material systems |
EP2177561A1 (en) | 2008-10-16 | 2010-04-21 | Dow Global Technologies Inc. | Storing and distributing a feeder product |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012138533A1 (en) * | 2011-04-06 | 2012-10-11 | Dow Global Technologies Llc | Process for producing cellulose derivatives of high bulk density, good flowability and improved dispersibility in cold water |
JP6039812B2 (en) * | 2012-09-25 | 2016-12-07 | ダウ グローバル テクノロジーズ エルエルシー | Method for producing cellulose derivatives having high bulk density, good fluidity and / or dispersibility, and low solution color in cold water |
KR102109750B1 (en) * | 2013-06-21 | 2020-05-12 | 롯데정밀화학 주식회사 | Additive composition of gypsum plaster with improved dispersibility and method for preparing the same |
CN107636018B (en) * | 2015-06-05 | 2020-07-10 | 陶氏环球技术有限责任公司 | Cellulose ether powder |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1514788A (en) * | 1974-12-13 | 1978-06-21 | Hoechst Ag | Grinding method for cellulose |
US4329451A (en) * | 1980-11-03 | 1982-05-11 | The Dow Chemical Company | Preparing an aqueous dispersion of colloidal size particles of a water-insoluble polysaccharide derivative |
GB2262527A (en) * | 1992-07-02 | 1993-06-23 | Dow Deutschland Inc | Process for grinding cellulose compounds |
EP0991668A1 (en) | 1997-06-13 | 2000-04-12 | Akzo Nobel N.V. | Hydrophobically modified anionic cellulose ethers |
EP1117694A1 (en) | 1998-08-06 | 2001-07-25 | Akzo Nobel N.V. | Nonionic cellulose ether with improved thickening properties |
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DE1068685B (en) | 1959-11-12 | Henkel ß. Cie. G.m.b.H., Dussel· dorf-Holthausen | Process for the production of readily water-soluble Cdlluloseäther | |
US2720464A (en) | 1952-10-24 | 1955-10-11 | Dow Chemical Co | Method of preparing cold-water-soluble powdered cellulose ethers |
GB1224390A (en) * | 1968-01-02 | 1971-03-10 | Wolff & Co Ag | Readily-soluble aluminium-carboxymethylcellulose, its manufacture, and its use for preparing distempers and emulsion paints |
US4076935A (en) | 1974-12-13 | 1978-02-28 | Hoechst Aktiengesellschaft | Grinding method for cellulose |
JPS5450025A (en) * | 1977-09-28 | 1979-04-19 | Mitsubishi Chem Ind | Method of making light weight gypsum formed product |
DE3038001A1 (en) * | 1980-10-08 | 1982-05-06 | Henkel KGaA, 4000 Düsseldorf | METHOD FOR PRODUCING MICROPOWDER FROM CELLULOSEETHER OR CELLULOSE |
JPS596293A (en) * | 1982-07-05 | 1984-01-13 | ライオン株式会社 | Additive for granular detergent |
US4707189A (en) * | 1984-11-07 | 1987-11-17 | Hercules Incorporated | Biostable compositions and the aqueous solutions thereof as thickeners for aqueous-based systems |
DE3543370A1 (en) | 1985-12-07 | 1987-06-11 | Jackering Altenburger Masch | MILL WITH SEVERAL GRINDINGS |
DE3811910C2 (en) | 1988-04-09 | 1997-04-10 | Mahltechnik Goergens Gmbh | Mill and method for grinding and drying a moist product simultaneously |
DE69618431T2 (en) | 1995-11-24 | 2002-08-29 | Altenburger Maschinen Jaeckering Gmbh | Mechanical shredder |
DE19641781A1 (en) * | 1996-10-10 | 1998-04-16 | Clariant Gmbh | Method and device for the simultaneous grinding and drying of a ground material containing moist cellulose ether |
US7635662B2 (en) * | 1998-09-04 | 2009-12-22 | Chemipro Kasei Kaisha, Ltd. | Compound for color-producing composition, and recording material |
US6197100B1 (en) * | 1998-12-04 | 2001-03-06 | Hercules Incorporated | Dispersible water soluble polymers |
US6165965A (en) * | 1999-04-16 | 2000-12-26 | Spartan Chemical Company, Inc. | Aqueous disinfectant and hard surface cleaning composition and method of use |
DE10009409A1 (en) * | 2000-02-28 | 2001-08-30 | Wolff Walsrode Ag | Production of water-soluble cellulose derivatives as fine powder, for use as e.g. paint binders or thickeners, involves dissolution or swelling in water and drying with heat transfer-carrier gas in a high-speed rotary impact mill |
JP4488458B2 (en) * | 2000-05-15 | 2010-06-23 | 株式会社Adeka | Liquid detergent composition |
DE10201344A1 (en) * | 2002-01-16 | 2003-09-18 | Polygal Ag & Co Nachf | Thickening agent composition for waterborne systems containing polyurethane polymer and polysaccharide useful for industrial paints, printing inks and pigments, textile dyes, pharmaceutical or cosmetic formulations |
-
2006
- 2006-05-09 CN CN2006800161416A patent/CN101175793B/en not_active Expired - Fee Related
- 2006-05-09 RU RU2007146143/05A patent/RU2415882C2/en active
- 2006-05-09 KR KR1020077025967A patent/KR101311319B1/en active IP Right Grant
- 2006-05-09 KR KR1020137013120A patent/KR20130064143A/en not_active Application Discontinuation
- 2006-05-09 EP EP06755100A patent/EP1879943B1/en active Active
- 2006-05-09 ES ES06755100T patent/ES2369038T3/en active Active
- 2006-05-09 BR BRPI0608962-3A patent/BRPI0608962A2/en not_active IP Right Cessation
- 2006-05-09 MX MX2007014091A patent/MX2007014091A/en active IP Right Grant
- 2006-05-09 US US11/913,891 patent/US9523014B2/en active Active
- 2006-05-09 JP JP2008510569A patent/JP5078097B2/en not_active Expired - Fee Related
- 2006-05-09 AT AT06755100T patent/ATE518902T1/en not_active IP Right Cessation
- 2006-05-09 WO PCT/EP2006/062159 patent/WO2006120194A1/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1514788A (en) * | 1974-12-13 | 1978-06-21 | Hoechst Ag | Grinding method for cellulose |
US4329451A (en) * | 1980-11-03 | 1982-05-11 | The Dow Chemical Company | Preparing an aqueous dispersion of colloidal size particles of a water-insoluble polysaccharide derivative |
GB2262527A (en) * | 1992-07-02 | 1993-06-23 | Dow Deutschland Inc | Process for grinding cellulose compounds |
EP0991668A1 (en) | 1997-06-13 | 2000-04-12 | Akzo Nobel N.V. | Hydrophobically modified anionic cellulose ethers |
EP1117694A1 (en) | 1998-08-06 | 2001-07-25 | Akzo Nobel N.V. | Nonionic cellulose ether with improved thickening properties |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008122344A1 (en) * | 2007-04-07 | 2008-10-16 | Dow Wolff Cellulosics Gmbh | Methylhydroxyethylhydroxypropylcellulose (mhehpc) in mineral-bound building material systems |
EP2177561A1 (en) | 2008-10-16 | 2010-04-21 | Dow Global Technologies Inc. | Storing and distributing a feeder product |
Also Published As
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EP1879943B1 (en) | 2011-08-03 |
ATE518902T1 (en) | 2011-08-15 |
US20080207893A1 (en) | 2008-08-28 |
JP5078097B2 (en) | 2012-11-21 |
RU2415882C2 (en) | 2011-04-10 |
KR20130064143A (en) | 2013-06-17 |
JP2008540759A (en) | 2008-11-20 |
ES2369038T3 (en) | 2011-11-24 |
BRPI0608962A2 (en) | 2010-02-17 |
KR101311319B1 (en) | 2013-09-25 |
CN101175793B (en) | 2012-10-17 |
US9523014B2 (en) | 2016-12-20 |
KR20080013896A (en) | 2008-02-13 |
MX2007014091A (en) | 2008-02-07 |
EP1879943A1 (en) | 2008-01-23 |
RU2007146143A (en) | 2009-06-20 |
CN101175793A (en) | 2008-05-07 |
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