NO20004038L - Process for the preparation of cellulose derivatives - Google Patents

Process for the preparation of cellulose derivatives

Info

Publication number
NO20004038L
NO20004038L NO20004038A NO20004038A NO20004038L NO 20004038 L NO20004038 L NO 20004038L NO 20004038 A NO20004038 A NO 20004038A NO 20004038 A NO20004038 A NO 20004038A NO 20004038 L NO20004038 L NO 20004038L
Authority
NO
Norway
Prior art keywords
cellulose
cellulose derivatives
preparation
different
derivatives
Prior art date
Application number
NO20004038A
Other languages
Norwegian (no)
Other versions
NO20004038D0 (en
Inventor
Heiko Thielking
Wolfgang Koch
Klaus Nachtkamp
Bernd Ondruschka
Matthias Nuechter
Dieter Klemm
Original Assignee
Dow Wolff Cellulosics Gmbh
Univ Schiller Jena
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 Dow Wolff Cellulosics Gmbh, Univ Schiller Jena filed Critical Dow Wolff Cellulosics Gmbh
Publication of NO20004038D0 publication Critical patent/NO20004038D0/en
Publication of NO20004038L publication Critical patent/NO20004038L/en

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J19/12—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electromagnetic waves
    • B01J19/122—Incoherent waves
    • B01J19/126—Microwaves
    • 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
    • C08B11/02—Alkyl or cycloalkyl ethers
    • C08B11/04—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals
    • C08B11/10—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals substituted with acid radicals
    • C08B11/12—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals substituted with acid radicals substituted with carboxylic radicals, e.g. carboxymethylcellulose [CMC]
    • 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
    • C08B13/00—Preparation of cellulose ether-esters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B3/00—Preparation of cellulose esters of organic acids

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Polymers & Plastics (AREA)
  • Materials Engineering (AREA)
  • Biochemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

In a high frequency electromagnetic field cellulose is quickly converted into cellulose derivatives with different substituents and different DS-values without detectable depolymerization of the cellulose derivatives at the irradiation frequency. The process involves: (a) activation of the cellulose and (b) reaction of the cellulose with one or more reagents, optionally in the presence of a suspension.
NO20004038A 1999-08-13 2000-08-11 Process for the preparation of cellulose derivatives NO20004038L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19938502A DE19938502A1 (en) 1999-08-13 1999-08-13 Process for the production of cellulose derivatives

Publications (2)

Publication Number Publication Date
NO20004038D0 NO20004038D0 (en) 2000-08-11
NO20004038L true NO20004038L (en) 2001-02-14

Family

ID=7918354

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20004038A NO20004038L (en) 1999-08-13 2000-08-11 Process for the preparation of cellulose derivatives

Country Status (10)

Country Link
EP (1) EP1077220B1 (en)
JP (1) JP2001089501A (en)
KR (1) KR100650096B1 (en)
AT (1) ATE253594T1 (en)
BR (1) BR0003500A (en)
CA (1) CA2315507A1 (en)
DE (2) DE19938502A1 (en)
ES (1) ES2209729T3 (en)
MX (1) MXPA00007744A (en)
NO (1) NO20004038L (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI20085593A7 (en) * 2008-06-16 2009-12-17 Valtion Teknillinen Tutkimuskeskus Method for processing cellulosic material
JP2024136147A (en) 2023-03-23 2024-10-04 セイコーエプソン株式会社 Method for producing molding material and molding material

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2823757C2 (en) * 1978-05-31 1982-10-21 Hoechst Ag, 6000 Frankfurt Process for the production of swellable fibers or swellable textile fabrics
JPS5887372A (en) * 1981-11-17 1983-05-25 凸版印刷株式会社 Wash-and-wear processing treatment of cellulose fiber structure
FR2552125B1 (en) * 1983-09-16 1986-03-21 Interox PROCESS FOR THE TREATMENT OF CELLULOSIC MATERIALS BY OXIDIZING AGENTS
DE19624990A1 (en) * 1996-06-22 1998-01-08 Gluesenkamp Karl Heinz Dr Production of polymer compounds with activated amino groups
EP0910602A1 (en) * 1996-07-10 1999-04-28 Sound Pipe Ltd Acetylation of lignocellulosic materials and applications thereof
FR2789995B1 (en) * 1999-02-23 2001-04-27 Toulouse Inst Nat Polytech PROCESS FOR GIVING A HYDROPHOBIC CHARACTER TO A CELLULOSIC OR AMYLACEOUS SOLID MATERIAL

Also Published As

Publication number Publication date
CA2315507A1 (en) 2001-02-13
EP1077220B1 (en) 2003-11-05
KR100650096B1 (en) 2006-11-27
DE50004304D1 (en) 2003-12-11
DE19938502A1 (en) 2001-02-15
MXPA00007744A (en) 2004-11-10
KR20010050065A (en) 2001-06-15
ES2209729T3 (en) 2004-07-01
EP1077220A1 (en) 2001-02-21
BR0003500A (en) 2001-10-16
NO20004038D0 (en) 2000-08-11
JP2001089501A (en) 2001-04-03
ATE253594T1 (en) 2003-11-15

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Legal Events

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FC2A Withdrawal, rejection or dismissal of laid open patent application