ES475378A1 - Procedimiento para precipitar celulosa de una solucion de lamisma - Google Patents

Procedimiento para precipitar celulosa de una solucion de lamisma

Info

Publication number
ES475378A1
ES475378A1 ES475378A ES475378A ES475378A1 ES 475378 A1 ES475378 A1 ES 475378A1 ES 475378 A ES475378 A ES 475378A ES 475378 A ES475378 A ES 475378A ES 475378 A1 ES475378 A1 ES 475378A1
Authority
ES
Spain
Prior art keywords
solution
cellulose
procedure
lamism
precipitate cellulose
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
Application number
ES475378A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Akzona Inc
Original Assignee
Akzona Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Akzona Inc filed Critical Akzona Inc
Publication of ES475378A1 publication Critical patent/ES475378A1/es
Expired legal-status Critical Current

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
    • C08B1/003—Preparation of cellulose solutions, i.e. dopes, with different possible solvents, e.g. ionic liquids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B16/00—Regeneration of cellulose

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

Procedimiento para precipitar celulosa de una solución de la misma, en donde la celulosa se disuelve en un disolvente que contiene un N-óxido de amina terciaria para la celulosa y en dónde la solución se conforma a continuación y se separa la celulosa del N-óxido de amina terciaria, caracterizado porque la solución se preparar por disolución de la celulosa en un disolvente para la celulosa que comprende un N-óxido de amina terciaria y de 1,4 a 29% en peso aproximadamente de agua.
ES475378A 1977-11-25 1978-11-24 Procedimiento para precipitar celulosa de una solucion de lamisma Expired ES475378A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/854,957 US4145532A (en) 1977-11-25 1977-11-25 Process for making precipitated cellulose

Publications (1)

Publication Number Publication Date
ES475378A1 true ES475378A1 (es) 1979-12-01

Family

ID=25319981

Family Applications (1)

Application Number Title Priority Date Filing Date
ES475378A Expired ES475378A1 (es) 1977-11-25 1978-11-24 Procedimiento para precipitar celulosa de una solucion de lamisma

Country Status (5)

Country Link
US (1) US4145532A (es)
JP (1) JPS5785823A (es)
BE (1) BE871895A (es)
ES (1) ES475378A1 (es)
ZA (1) ZA785952B (es)

Families Citing this family (68)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4416698A (en) * 1977-07-26 1983-11-22 Akzona Incorporated Shaped cellulose article prepared from a solution containing cellulose dissolved in a tertiary amine N-oxide solvent and a process for making the article
US4246221A (en) * 1979-03-02 1981-01-20 Akzona Incorporated Process for shaped cellulose article prepared from a solution containing cellulose dissolved in a tertiary amine N-oxide solvent
US4256613A (en) * 1977-11-25 1981-03-17 Akzona Incorporated Composition and process for making precipitated nylon-cellulose biconstituent composition
US4247431A (en) * 1977-11-25 1981-01-27 Akzona Incorporated Composition and process for making precipitated nylon
IT7821922A0 (it) * 1978-04-03 1978-04-03 Ind Applic Viscosa Snia Viscos Procedimento per la dissoluzione della cellulosa in solventi organici, soluzioni ottenute con tale procedimento, e procedimento per la rigenerazione della cellulosa dalle dette soluzioni con produzioni di corpi formati.
US4324593A (en) * 1978-09-01 1982-04-13 Akzona Incorporated Shapeable tertiary amine N-oxide solution of cellulose, shaped cellulose product made therefrom and process for preparing the shapeable solution and cellulose products
US4255300A (en) * 1979-07-02 1981-03-10 Akzona Incorporated Composition and process for making precipitated cellulose-polyvinyl alcohol biconstituent composition
US4247688A (en) * 1979-07-02 1981-01-27 Akzona Incorporated Composition and process for making precipitated hydroxyethylcellulose
US4290815A (en) * 1980-01-28 1981-09-22 Akzona Incorporated Use of co-solvents in amine N-oxide solutions
FR2578865B1 (fr) * 1985-03-14 1987-04-10 Centre Nat Rech Scient Procede pour la preparation de solutions d'un materiau ligno-cellulosique et solutions obtenues.
US5094690A (en) * 1988-08-16 1992-03-10 Lenzing Aktiengesellschaft Process and arrangement for preparing a solution of cellulose
US5330567A (en) * 1988-08-16 1994-07-19 Lenzing Aktiengesellschaft Process and arrangement for preparing a solution of cellulose
AT392972B (de) * 1988-08-16 1991-07-25 Chemiefaser Lenzing Ag Verfahren zur herstellung von loesungen von cellulose sowie einrichtung zur durchfuehrung des verfahrens
US5451364A (en) * 1992-01-17 1995-09-19 Viskase Corporation Cellulose food casing manufacturing method
USH1592H (en) * 1992-01-17 1996-09-03 Viskase Corporation Cellulosic food casing
US5277857A (en) * 1992-01-17 1994-01-11 Viskase Corporation Method of making a cellulose food casing
AT396930B (de) * 1992-01-23 1993-12-27 Chemiefaser Lenzing Ag Aminoxide
DE69304956T2 (de) 1992-03-04 1997-05-15 Viskase Corp Cellulosische Formkörper und Herstellung davon
JPH07268103A (ja) * 1994-11-10 1995-10-17 Lenzing Ag セルロース溶液調製方法
US5603884A (en) * 1994-11-18 1997-02-18 Viskase Corporation Reinforced cellulosic film
US6235392B1 (en) 1996-08-23 2001-05-22 Weyerhaeuser Company Lyocell fibers and process for their preparation
US6331354B1 (en) 1996-08-23 2001-12-18 Weyerhaeuser Company Alkaline pulp having low average degree of polymerization values and method of producing the same
US6210801B1 (en) 1996-08-23 2001-04-03 Weyerhaeuser Company Lyocell fibers, and compositions for making same
US6471727B2 (en) 1996-08-23 2002-10-29 Weyerhaeuser Company Lyocell fibers, and compositions for making the same
US6306334B1 (en) 1996-08-23 2001-10-23 The Weyerhaeuser Company Process for melt blowing continuous lyocell fibers
US5766540A (en) 1997-03-27 1998-06-16 Viskase Corporation Cellulose food casing manufacturing method
US5759478A (en) 1997-03-27 1998-06-02 Viskase Corporation Mandrel structure for use in manufacture of cellulose food casing
DE19730090A1 (de) 1997-07-14 1999-01-21 Wolff Walsrode Ag Neuartige Celluloseether und Verfahren zu deren Herstellung
US5891375A (en) * 1997-07-24 1999-04-06 Alfacel S.A. Processes for precipitating tertiary amine oxide cellulose solutions containing esters and products made therefrom
US5951933A (en) * 1997-07-24 1999-09-14 Alfacel S.A. Processes for precipitating tertiary amine oxide cellulose solutions containing water soluble polymers and products made therefrom
US5942167A (en) * 1997-08-12 1999-08-24 Viskase Corporation Method of making a cellulose food casing including solvent recovery
DE19737113A1 (de) * 1997-08-27 1999-03-04 Kalle Nalo Gmbh Verfahren und Vorrichtung zur Herstellung eines nahtlosen Folienschlauches auf Cellulosebasis durch Extrudieren
DE19753546A1 (de) * 1997-12-03 1999-06-10 Kalle Nalo Gmbh Schwammtuch auf Cellulosebasis und Verfahren zu dessen Herstellung
GB9810778D0 (en) * 1998-05-19 1998-07-15 Courtaulds Plc Cellulosic solutions and their uses
GB2337990A (en) * 1998-06-03 1999-12-08 Courtaulds Fibres Process for shaping cellulose
US6773648B2 (en) 1998-11-03 2004-08-10 Weyerhaeuser Company Meltblown process with mechanical attenuation
RU2156265C1 (ru) * 1999-03-31 2000-09-20 Санкт-Петербургский государственный университет технологии и дизайна Способ получения растворов целлюлозы
US6409883B1 (en) 1999-04-16 2002-06-25 Kimberly-Clark Worldwide, Inc. Methods of making fiber bundles and fibrous structures
WO2001052804A1 (en) * 2000-01-18 2001-07-26 Unilever Plc Anti-microbial antiperspirant products
GB0001129D0 (en) * 2000-01-18 2000-03-08 Unilever Plc Anti-microbial aerosol compositions
EP1248591B1 (en) * 2000-01-18 2007-08-08 Unilever Plc Anti-microbial compositions comprising a salt of a transition metal chelator
US6444161B1 (en) 2000-05-19 2002-09-03 Viskase Corporation Mandrel structure for use in manufacture of cellulose food casing
RU2184750C2 (ru) * 2000-06-28 2002-07-10 Санкт-Петербургский государственный университет технологии и дизайна Способ получения растворов целлюлозы
US6500215B1 (en) 2000-07-11 2002-12-31 Sybron Chemicals, Inc. Utility of selected amine oxides in textile technology
DE10035799A1 (de) * 2000-07-22 2002-01-31 Kalle Nalo Gmbh & Co Kg Nach dem Aminoxidverfahren hergestellte Nahrungsmittelhüllen auf Cellulosebasis
GB0117535D0 (en) * 2001-07-18 2001-09-12 Unilever Plc Deodorant compositions
US20030032705A1 (en) * 2001-08-07 2003-02-13 Otter James William Ethylene terpolymer adhesive for condensing furnace heat exchanger laminate material
US6565796B1 (en) 2001-10-04 2003-05-20 Viskase Corporation Method and apparatus for use in manufacture of cellulose casing
US6790527B1 (en) 2003-04-16 2004-09-14 Weyerhaeuser Company Lyocell fiber from unbleached pulp
US7097737B2 (en) * 2003-04-16 2006-08-29 Weyerhaeuser Company Method of making a modified unbleached pulp for lyocell products
US6833187B2 (en) 2003-04-16 2004-12-21 Weyerhaeuser Company Unbleached pulp for lyocell products
US8187422B2 (en) 2006-03-21 2012-05-29 Georgia-Pacific Consumer Products Lp Disposable cellulosic wiper
US8187421B2 (en) * 2006-03-21 2012-05-29 Georgia-Pacific Consumer Products Lp Absorbent sheet incorporating regenerated cellulose microfiber
US8540846B2 (en) 2009-01-28 2013-09-24 Georgia-Pacific Consumer Products Lp Belt-creped, variable local basis weight multi-ply sheet with cellulose microfiber prepared with perforated polymeric belt
US7718036B2 (en) * 2006-03-21 2010-05-18 Georgia Pacific Consumer Products Lp Absorbent sheet having regenerated cellulose microfiber network
US7815741B2 (en) * 2006-11-03 2010-10-19 Olson David A Reactor pump for catalyzed hydrolytic splitting of cellulose
US7815876B2 (en) 2006-11-03 2010-10-19 Olson David A Reactor pump for catalyzed hydrolytic splitting of cellulose
US7951264B2 (en) * 2007-01-19 2011-05-31 Georgia-Pacific Consumer Products Lp Absorbent cellulosic products with regenerated cellulose formed in-situ
EP2260059B1 (de) * 2008-02-08 2013-07-03 LIST Holding AG Verfahren und vorrichtung zur herstellung von formkörpern
WO2010033536A2 (en) * 2008-09-16 2010-03-25 Dixie Consumer Products Llc Food wrap basesheet with regenerated cellulose microfiber
MY175143A (en) 2010-04-08 2020-06-10 Manuel Steiner Process for producing a product
WO2013124265A1 (en) * 2012-02-20 2013-08-29 Renewcell Lux S.À.R.L Regeneration of cellulose
GB2511528A (en) 2013-03-06 2014-09-10 Speciality Fibres And Materials Ltd Absorbent materials
WO2017211798A1 (en) 2016-06-07 2017-12-14 Universität Regensburg Process for the preparation of a cellulose product
ES2824626T3 (es) 2016-10-03 2021-05-12 Viskase Companies Inc Método para fabricar películas plásticas de envasado de alimentos y películas plásticas de envasado de alimentos así producidas
PL3497153T3 (pl) 2016-10-03 2020-12-28 Viskase Companies, Inc. Sposób wytwarzania folii celulozowych do pakowania żywności i folie celulozowe do pakowania żywności wytworzone tym sposobem
WO2026073548A1 (en) 2024-10-02 2026-04-09 Speciality Fibres And Materials Ltd Devices and materials for wound care and methods of preparation thereof
WO2026073547A1 (en) 2024-10-02 2026-04-09 Glock Health Gmbh Devices and materials for wound care and methods of preparation thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2179181A (en) * 1936-04-21 1939-11-07 Soc Of Chemical Ind Cellulose solutions and process of making same
US2744292A (en) * 1953-02-10 1956-05-08 Rayonier Inc Regenerated cellulose sheets and process of producing the sheets
US3447939A (en) * 1966-09-02 1969-06-03 Eastman Kodak Co Compounds dissolved in cyclic amine oxides
US3758457A (en) * 1972-01-25 1973-09-11 Du Pont Process for recovering regenerated cellulose

Also Published As

Publication number Publication date
JPS5785823A (en) 1982-05-28
BE871895A (fr) 1979-03-01
ZA785952B (en) 1979-09-26
US4145532A (en) 1979-03-20

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20010301