NO941114L - Fremgangsmåte for fremstilling og opparbeiding av N-hydroksychitosaner som er opplöselige i vandig medium - Google Patents

Fremgangsmåte for fremstilling og opparbeiding av N-hydroksychitosaner som er opplöselige i vandig medium

Info

Publication number
NO941114L
NO941114L NO941114A NO941114A NO941114L NO 941114 L NO941114 L NO 941114L NO 941114 A NO941114 A NO 941114A NO 941114 A NO941114 A NO 941114A NO 941114 L NO941114 L NO 941114L
Authority
NO
Norway
Prior art keywords
aqueous medium
soluble
processing
hydroxychitosans
preparation
Prior art date
Application number
NO941114A
Other languages
English (en)
Other versions
NO941114D0 (no
Inventor
Reinhard Donger
Diethart Reichel
Birgit Kessler
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 NO941114D0 publication Critical patent/NO941114D0/no
Publication of NO941114L publication Critical patent/NO941114L/no

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
    • F26B17/28—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rollers or discs with material passing over or between them, e.g. suction drum, sieve, the axis of rotation being in fixed position
    • F26B17/284—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rollers or discs with material passing over or between them, e.g. suction drum, sieve, the axis of rotation being in fixed position the materials being dried on the non-perforated surface of heated rollers or drums
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
    • C08B37/0006—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid
    • C08B37/0024—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid beta-D-Glucans; (beta-1,3)-D-Glucans, e.g. paramylon, coriolan, sclerotan, pachyman, callose, scleroglucan, schizophyllan, laminaran, lentinan or curdlan; (beta-1,6)-D-Glucans, e.g. pustulan; (beta-1,4)-D-Glucans; (beta-1,3)(beta-1,4)-D-Glucans, e.g. lichenan; Derivatives thereof
    • C08B37/0027—2-Acetamido-2-deoxy-beta-glucans; Derivatives thereof
    • C08B37/003—Chitin, i.e. 2-acetamido-2-deoxy-(beta-1,4)-D-glucan or N-acetyl-beta-1,4-D-glucosamine; Chitosan, i.e. deacetylated product of chitin or (beta-1,4)-D-glucosamine; Derivatives thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
    • F26B3/10—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour carrying the materials or objects to be dried with it
    • F26B3/12—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour carrying the materials or objects to be dried with it in the form of a spray, i.e. sprayed or dispersed emulsions or suspensions

Abstract

Det blir beskrevet en fremgangsmåte for fremstilling og opparbeiding av N-hydroksyalkylchitosaner som er oppløselige i vandig medium, omfattende trinnene: - Dlspergering av chitosanet i et vandig medium, - påfølgende hydroksyalkylering av det dlspergerte chltosan og påfølgende opparbeiding av N-hydroksyalkylchitosa- net, som er kjennetegnet yed at hydroksyalkyleringen blir gjennomført til en gjennomsnittlig substitusjonsgrad (DS) på 2,0, fortrinnsvis 1,5 til 2,0, etter hydrok- syalkyleringen og før opparbeidingen, blir eventuelt en del av det vandige medium fjernet, og opparbeidingen av N-hydroksyalkylchitosanet skjer ved tørking.
NO941114A 1993-03-27 1994-03-25 Fremgangsmåte for fremstilling og opparbeiding av N-hydroksychitosaner som er opplöselige i vandig medium NO941114L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4310088A DE4310088A1 (de) 1993-03-27 1993-03-27 Verfahren zur Herstellung und Aufarbeitung von in wäßrigem Medium löslichen N-Hydroxyalkylchitosanen

Publications (2)

Publication Number Publication Date
NO941114D0 NO941114D0 (no) 1994-03-25
NO941114L true NO941114L (no) 1994-09-28

Family

ID=6484085

Family Applications (1)

Application Number Title Priority Date Filing Date
NO941114A NO941114L (no) 1993-03-27 1994-03-25 Fremgangsmåte for fremstilling og opparbeiding av N-hydroksychitosaner som er opplöselige i vandig medium

Country Status (8)

Country Link
US (1) US6090928A (no)
EP (1) EP0618233B1 (no)
JP (1) JPH06340702A (no)
BR (1) BR9401296A (no)
CA (1) CA2119967A1 (no)
DE (2) DE4310088A1 (no)
ES (1) ES2131602T3 (no)
NO (1) NO941114L (no)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19545325B4 (de) * 1995-12-05 2005-03-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren zur Herstellung von Chitosanalkylderivaten
WO1997024339A1 (fr) 1995-12-27 1997-07-10 Ono Pharmaceutical Co., Ltd. Derives de tetrazole et medicaments les contenant a titre d'ingredients actifs
DE19601763A1 (de) * 1996-01-19 1997-07-24 Hoechst Ag Verwendung von Tensiden bei der Trocknung von hydrophilen, hochquellfähigen Hydrogelen
JP3958536B2 (ja) * 2000-07-12 2007-08-15 大日精化工業株式会社 水性溶液組成物および物品の表面改質方法
US6458938B1 (en) * 2001-01-12 2002-10-01 Coreana Cosmetics Co., Ltd. Chitosan derivatives combined with polypropylene glycol and method for preparing the same
US6933372B2 (en) * 2003-03-07 2005-08-23 Warner-Lambert Company Method to produce a solid form of heparin
WO2005100468A1 (ja) * 2004-03-31 2005-10-27 Dainichiseika Color & Chemicals Mfg. Co., Ltd. 温度応答性組成物およびそのヒドロゲル
CA2788017A1 (en) * 2010-02-01 2011-08-04 Fpinnovations Fungal modified chitosan adhesives and wood composites made from the adhesives
KR101262056B1 (ko) * 2010-08-30 2013-05-08 충남대학교산학협력단 글리콜 키토산 유도체, 이의 제조방법 및 이를 포함하는 약물 전달체
CN112111022B (zh) * 2020-10-10 2021-06-04 山东一滕新材料股份有限公司 一种改性壳聚糖及其制备方法、瓷砖胶添加剂及其应用

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB978495A (en) * 1962-07-25 1964-12-23 Staley Mfg Co A E Amylose solutions
JPS57180602A (en) * 1981-04-30 1982-11-06 Nippon Soda Co Ltd Production of water-soluble chitosan derivative and film-forming agent comprising same
JPS58109502A (ja) * 1981-12-23 1983-06-29 Mitsubishi Acetate Co Ltd ガラクトマンナンのヒドロキシアルキルエ−テルの製造方法
US4845204A (en) * 1985-02-07 1989-07-04 Wella Aktiengesellschaft Cosmetic compositions on the basis of alkyl-hydroxypropyl-substituted chitosan derivatives, new chitosan derivatives and processes for the production thereof
DE3541305A1 (de) * 1985-11-22 1987-05-27 Wella Ag Kosmetische mittel auf der basis von n-hydroxypropylchitosanen, neue n-hydroxypropyl-chitosane sowie verfahren zu ihrer herstellung
DE3703760A1 (de) * 1987-02-07 1988-08-18 Wella Ag Kosmetisches mittel auf der basis von n-hydroxypropylisopropyletherchitosanen, sowie neue n-hydroxypropylisopropyletherderivate des chitosans
DE3715576A1 (de) * 1987-05-09 1988-11-24 Wella Ag Neue makromolekulare, oberflaechenaktive, quaternaere n-substituierte chitosanderivate sowie kosmetisches mittel auf der basis dieser neuen chitosanderivate
DE3723811A1 (de) * 1987-07-18 1989-01-26 Wella Ag Nagellack auf der basis von o-benzyl-n-hydroxyalkylchitosanen sowie neue o-benzyl-n-hydroxyalkylderivate des chitosans
JP2537421B2 (ja) * 1990-02-08 1996-09-25 大日精化工業株式会社 ヒドロキシプロピル化脱アセチルキチン及びその製造方法
JP2619304B2 (ja) * 1990-12-19 1997-06-11 大日精化工業株式会社 ヒドロキシプロピル化脱アセチル化キチンの製造方法

Also Published As

Publication number Publication date
BR9401296A (pt) 1994-11-01
EP0618233A3 (de) 1995-06-28
DE4310088A1 (de) 1994-09-29
CA2119967A1 (en) 1994-09-28
DE59408156D1 (de) 1999-06-02
NO941114D0 (no) 1994-03-25
ES2131602T3 (es) 1999-08-01
EP0618233B1 (de) 1999-04-28
US6090928A (en) 2000-07-18
EP0618233A2 (de) 1994-10-05
JPH06340702A (ja) 1994-12-13

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