MXPA04001714A - Metodo para la produccion de un eter de celulosa de viscosidad baja por medio de la descomposicion de oxidativa, acida, de eteres de celulosa triturados y secos. - Google Patents

Metodo para la produccion de un eter de celulosa de viscosidad baja por medio de la descomposicion de oxidativa, acida, de eteres de celulosa triturados y secos.

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Publication number
MXPA04001714A
MXPA04001714A MXPA04001714A MXPA04001714A MXPA04001714A MX PA04001714 A MXPA04001714 A MX PA04001714A MX PA04001714 A MXPA04001714 A MX PA04001714A MX PA04001714 A MXPA04001714 A MX PA04001714A MX PA04001714 A MXPA04001714 A MX PA04001714A
Authority
MX
Mexico
Prior art keywords
ground
acid
oxidative decomposition
producing
low viscosity
Prior art date
Application number
MXPA04001714A
Other languages
English (en)
Inventor
Hammes Alf
Original Assignee
Se Tylose Gmbh & Co Kg
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7696589&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=MXPA04001714(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Se Tylose Gmbh & Co Kg filed Critical Se Tylose Gmbh & Co Kg
Publication of MXPA04001714A publication Critical patent/MXPA04001714A/es

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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
    • 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

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  • 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)

Abstract

La invencion describe un metodo para la despolimerizacion de eteres de celulosa por medio de la descomposicion oxidativa acida; el eter de celulosa triturado y seco primero es gasificado con acido gaseoso o es rociado con la solucion de un acido, y se pone en contacto con un oxidante o una solucion de un oxidante; entonces es despolimerizado a temperaturas de entre 50 y 120°C durante 0.01 y 10 horas y el acido es neutralizado a traves de la adicion de una base, el contenido de agua de la mezcla de reaccion durante la despolimerizacion no debe exceder el 10% en peso.
MXPA04001714A 2001-08-25 2002-08-21 Metodo para la produccion de un eter de celulosa de viscosidad baja por medio de la descomposicion de oxidativa, acida, de eteres de celulosa triturados y secos. MXPA04001714A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10141680A DE10141680B4 (de) 2001-08-25 2001-08-25 Verfahren zur Herstellung niederviskoser Celluloseether durch sauer-oxidativen Abbau von gemahlenen und getrockneten Celluloseethern
PCT/EP2002/009319 WO2003018637A1 (de) 2001-08-25 2002-08-21 Verfahren zur herstellung niederviskoser celluloseether durch sauer-oxidativen abbau von gemahlenen und getrockneten celluloseethern

Publications (1)

Publication Number Publication Date
MXPA04001714A true MXPA04001714A (es) 2005-08-26

Family

ID=7696589

Family Applications (1)

Application Number Title Priority Date Filing Date
MXPA04001714A MXPA04001714A (es) 2001-08-25 2002-08-21 Metodo para la produccion de un eter de celulosa de viscosidad baja por medio de la descomposicion de oxidativa, acida, de eteres de celulosa triturados y secos.

Country Status (7)

Country Link
US (1) US20040242862A1 (es)
EP (1) EP1423433B1 (es)
JP (1) JP2005502740A (es)
KR (1) KR100901039B1 (es)
DE (2) DE10141680B4 (es)
MX (1) MXPA04001714A (es)
WO (1) WO2003018637A1 (es)

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Also Published As

Publication number Publication date
EP1423433A1 (de) 2004-06-02
DE50209727D1 (de) 2007-04-26
DE10141680B4 (de) 2004-02-26
WO2003018637A1 (de) 2003-03-06
KR100901039B1 (ko) 2009-06-04
DE10141680A1 (de) 2003-03-13
KR20040044480A (ko) 2004-05-28
US20040242862A1 (en) 2004-12-02
EP1423433B1 (de) 2007-03-14
JP2005502740A (ja) 2005-01-27

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