ES8504214A1 - Un procedimiento para la preparacion de eteres celulosicos - Google Patents

Un procedimiento para la preparacion de eteres celulosicos

Info

Publication number
ES8504214A1
ES8504214A1 ES530028A ES530028A ES8504214A1 ES 8504214 A1 ES8504214 A1 ES 8504214A1 ES 530028 A ES530028 A ES 530028A ES 530028 A ES530028 A ES 530028A ES 8504214 A1 ES8504214 A1 ES 8504214A1
Authority
ES
Spain
Prior art keywords
cellulose ethers
cellulose
dispersing agent
agent containing
dimethoxyethane
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
ES530028A
Other languages
English (en)
Other versions
ES530028A0 (es
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.)
Hoechst AG
Original Assignee
Hoechst AG
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 Hoechst AG filed Critical Hoechst AG
Publication of ES530028A0 publication Critical patent/ES530028A0/es
Publication of ES8504214A1 publication Critical patent/ES8504214A1/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
    • C08B11/00—Preparation of cellulose ethers

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)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)

Abstract

PROCEDIMIENTO PARA LA OBTENCION DE ETERES CELULOSICOS A PARTIR DE CELULOSA Y AGENTES ETERIFICANTES.CONSISTE EN LA ACCION DE AGENTES ETERIFICANTES SOBRE CELULOSA EN PRESENCIA DE AGUA, BASES Y DIMETOXIETANO COMO DISOLVENTE ORGANICO INERTE Y OTRO DISOLVENTE ORGANICO, TAL COMO UN ALCANOL, ALCANODIOL O ALCOXIALCANOL. EL PROCESO SE EFECTUA EN DOS ETAPAS, UNA DE ALCALINIZACION Y OTRA DE ETERIFICACION.
ES530028A 1983-02-25 1984-02-24 Un procedimiento para la preparacion de eteres celulosicos Expired ES8504214A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19833306621 DE3306621A1 (de) 1983-02-25 1983-02-25 Verfahren zur herstellung von celluloseethern mit einem dimethoxyethan enthaltenden dispergierhilfsmittel

Publications (2)

Publication Number Publication Date
ES530028A0 ES530028A0 (es) 1984-11-01
ES8504214A1 true ES8504214A1 (es) 1984-11-01

Family

ID=6191803

Family Applications (1)

Application Number Title Priority Date Filing Date
ES530028A Expired ES8504214A1 (es) 1983-02-25 1984-02-24 Un procedimiento para la preparacion de eteres celulosicos

Country Status (10)

Country Link
US (1) US4501887A (es)
EP (1) EP0117490B1 (es)
JP (1) JPH0647602B2 (es)
AT (1) ATE25260T1 (es)
BR (1) BR8400852A (es)
CA (1) CA1215358A (es)
DE (2) DE3306621A1 (es)
ES (1) ES8504214A1 (es)
FI (1) FI73443C (es)
ZA (1) ZA841367B (es)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3417952A1 (de) * 1984-05-15 1985-11-21 Hoechst Ag, 6230 Frankfurt Verfahren zur herstellung von wasserloeslichen cellulosemischethern
US4845206A (en) * 1987-05-21 1989-07-04 The Dow Chemical Company Production of cellulose ethers using a premix of alkali and etherifying agent
US4826619A (en) * 1987-12-03 1989-05-02 A. E. Staley Manufacturing Company Starch slurries with concentrated aqueous alkaline solutions
DE4037605A1 (de) * 1990-11-27 1992-06-04 Wolff Walsrode Ag Wasserloesliche hydroxypropyl-sulfoethyl-cellulosederivate (hpsec) mit niedrigem substitutionsgrad und verfahren zu ihrer herstellung
DE4113892A1 (de) * 1991-04-27 1992-10-29 Wolff Walsrode Ag Wasserloesliche sulfoethylcelluloseether mit sehr guter loesungsqualitaet und verfahren zu ihrer herstellung
DE10018155A1 (de) * 2000-04-12 2001-10-25 Clariant Gmbh Verfahren zur Herstellung von gut benetzbaren, wasserlöslichen, pulverförmigen, mindestens alkylierten, nicht-ionischen Celluloseethern
SE520715C2 (sv) * 2001-12-03 2003-08-12 Akzo Nobel Nv Förfarande för framställning av metylcellulosaetrar
ITVA20020051A1 (it) * 2002-10-14 2004-04-15 Lamberti Spa Modificatore di reologia per prodotti destinati all'edilizia.
US7893623B2 (en) * 2005-05-23 2011-02-22 Koninklijke Philips Electronics N.V. High-intensity discharge lamp
CN101583628B (zh) * 2007-01-22 2014-09-24 阿克佐诺贝尔股份有限公司 制备纤维素醚的方法
JP2010031165A (ja) * 2008-07-30 2010-02-12 Sanyo Chem Ind Ltd アルキルエーテル化カルボキシアルキルセルロース

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1980988A (en) * 1933-05-03 1934-11-20 Du Pont Solvents for etherification of cellulose
US2553695A (en) * 1947-10-17 1951-05-22 Celanese Corp Manufacture of cellulose ethers
US2618632A (en) * 1949-04-05 1952-11-18 Hercules Powder Co Ltd Mixed cellulose ether and preparation thereof
US2682535A (en) * 1950-11-28 1954-06-29 Union Carbide & Carbon Corp Hydroxyalkylation of polysaccharides
US2744894A (en) * 1952-09-08 1956-05-08 Union Carbide & Carbon Corp Hydroxyalkylation of polysaccharides
US3351583A (en) * 1964-07-06 1967-11-07 Hercules Inc Preparation of hydroxypropyl cellulose
US3284441A (en) * 1965-07-26 1966-11-08 Hercules Inc Process of preparing carboxymethyl-cellulose
DE2644678A1 (de) * 1976-10-02 1978-04-06 Dynamit Nobel Ag Verfahren zur herstellung funktionalisierter cellulosen
US4129722A (en) * 1977-12-15 1978-12-12 National Starch And Chemical Corporation Process for the preparation of high D. S. polysaccharides
US4278790A (en) * 1978-07-31 1981-07-14 Hopkins Agricultural Chemical Co. Novel cellulose solutions
DE2929002A1 (de) * 1979-07-18 1981-02-12 Henkel Kgaa Verfahren zur herstellung von cellulosederivaten mittels besonders reaktiver alkalicellulose
IE49324B1 (en) * 1979-12-19 1985-09-18 Euro Celtique Sa Controlled release compositions
DE3147434A1 (de) * 1981-11-30 1983-06-09 Hoechst Ag, 6230 Frankfurt Verfahren zur herstellung von celluloseethern mit dimethoxyethan als dispergierhilfsmittel
US4419510A (en) * 1982-07-30 1983-12-06 The Dow Chemical Company Method for controlling cellulose etherification reaction

Also Published As

Publication number Publication date
ATE25260T1 (de) 1987-02-15
JPS59159801A (ja) 1984-09-10
ES530028A0 (es) 1984-11-01
EP0117490A2 (de) 1984-09-05
FI73443C (fi) 1987-10-09
EP0117490B1 (de) 1987-01-28
FI840746A0 (fi) 1984-02-23
BR8400852A (pt) 1984-10-02
ZA841367B (en) 1984-10-31
FI73443B (fi) 1987-06-30
FI840746A (fi) 1984-08-26
CA1215358A (en) 1986-12-16
DE3306621A1 (de) 1984-08-30
US4501887A (en) 1985-02-26
JPH0647602B2 (ja) 1994-06-22
DE3462262D1 (en) 1987-03-05
EP0117490A3 (en) 1985-10-02

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