JPH02229832A - Production of granular and cellular chitosan derivative having sulfone group - Google Patents

Production of granular and cellular chitosan derivative having sulfone group

Info

Publication number
JPH02229832A
JPH02229832A JP5109189A JP5109189A JPH02229832A JP H02229832 A JPH02229832 A JP H02229832A JP 5109189 A JP5109189 A JP 5109189A JP 5109189 A JP5109189 A JP 5109189A JP H02229832 A JPH02229832 A JP H02229832A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
aqueous solution
cellular
chitosan
granular
solution
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.)
Granted
Application number
JP5109189A
Other versions
JPH075741B2 (en )
Inventor
Hiroyuki Fujita
Mitsunori Itoyama
Original Assignee
Fuji Spinning Co Ltd
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

Links

Abstract

PURPOSE: To obtain a derivative capable of providing an exchange resin, etc., stable within the whole pH range and having a high strength and desired sulfone groups by dissolving low-molecular weight chitosan into an acidic aqueous solution, dripping the resultant solution into a basic solution, coagulating the above-mentioned aqueous solution, then acetylating, crosslinking and sulfonating the obtained product.
CONSTITUTION: Low-molecular weight chitosan is dissolved in an acidic aqueous solution and the obtained aqueous solution is then dripped into a basic solution and coagulated to a provide granular and cellular chitosan, which is subsequently acetylated with acetic anhydride, crosslinked with a diepoxy and then sulfonated with N,N'-dimenthylformamide-sulfur trioxide complex in the N,N'- dimenthylformamide to afford a granular cellular chitosan derivative having sulfone groups. The deacetylation degree is ≤10%, preferably ≤5% in the course of the reaction.
COPYRIGHT: (C)1990,JPO&Japio
JP5109189A 1989-03-03 1989-03-03 Method for producing a particulate porous chitosan derivative having a sulfone group Expired - Fee Related JPH075741B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5109189A JPH075741B2 (en) 1989-03-03 1989-03-03 Method for producing a particulate porous chitosan derivative having a sulfone group

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5109189A JPH075741B2 (en) 1989-03-03 1989-03-03 Method for producing a particulate porous chitosan derivative having a sulfone group

Publications (2)

Publication Number Publication Date
JPH02229832A true true JPH02229832A (en) 1990-09-12
JPH075741B2 JPH075741B2 (en) 1995-01-25

Family

ID=12877145

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5109189A Expired - Fee Related JPH075741B2 (en) 1989-03-03 1989-03-03 Method for producing a particulate porous chitosan derivative having a sulfone group

Country Status (1)

Country Link
JP (1) JPH075741B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6693188B2 (en) 2001-08-08 2004-02-17 Cargill Incorporated N-acetyl-D-glucosamine and process for producing N-acetyl-D-glucosamine
US6972284B2 (en) 2000-03-15 2005-12-06 Cargill, Incorporated Chitosan and method of preparing chitosan
US7488812B2 (en) 2002-04-02 2009-02-10 Cargill, Incorporated Chitosan production
US7816514B2 (en) 2001-02-16 2010-10-19 Cargill, Incorporated Glucosamine and method of making glucosamine from microbial biomass
US7923437B2 (en) 2001-02-16 2011-04-12 Cargill, Incorporated Water soluble β-glucan, glucosamine, and N-acetylglucosamine compositions and methods for making the same
US8222232B2 (en) 2001-02-16 2012-07-17 Cargill, Incorporated Glucosamine and N-acetylglucosamine compositions and methods of making the same fungal biomass

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6972284B2 (en) 2000-03-15 2005-12-06 Cargill, Incorporated Chitosan and method of preparing chitosan
US7413881B2 (en) 2000-03-15 2008-08-19 Cargill, Incorporated Chitosan and method of preparing chitosan
US8034925B2 (en) 2001-02-16 2011-10-11 Cargill, Incorporated Glucosamine and method of making glucosamine from microbial biomass
US7816514B2 (en) 2001-02-16 2010-10-19 Cargill, Incorporated Glucosamine and method of making glucosamine from microbial biomass
US7923437B2 (en) 2001-02-16 2011-04-12 Cargill, Incorporated Water soluble β-glucan, glucosamine, and N-acetylglucosamine compositions and methods for making the same
US8222232B2 (en) 2001-02-16 2012-07-17 Cargill, Incorporated Glucosamine and N-acetylglucosamine compositions and methods of making the same fungal biomass
US6693188B2 (en) 2001-08-08 2004-02-17 Cargill Incorporated N-acetyl-D-glucosamine and process for producing N-acetyl-D-glucosamine
US7488812B2 (en) 2002-04-02 2009-02-10 Cargill, Incorporated Chitosan production

Also Published As

Publication number Publication date Type
JPH075741B2 (en) 1995-01-25 grant

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