NO931700L - N-HALOGENE CHITOSANES, PROCEDURE FOR PREPARATION AND USE OF SUCH - Google Patents

N-HALOGENE CHITOSANES, PROCEDURE FOR PREPARATION AND USE OF SUCH

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Publication number
NO931700L
NO931700L NO93931700A NO931700A NO931700L NO 931700 L NO931700 L NO 931700L NO 93931700 A NO93931700 A NO 93931700A NO 931700 A NO931700 A NO 931700A NO 931700 L NO931700 L NO 931700L
Authority
NO
Norway
Prior art keywords
deoxy
chitosan
units
chitosanes
halogene
Prior art date
Application number
NO93931700A
Other languages
Norwegian (no)
Other versions
NO931700D0 (en
Inventor
Edward Ohannes Dingilian
George Edward Heinsohn
Original Assignee
Du Pont
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
Priority claimed from US07/613,602 external-priority patent/US5204452A/en
Application filed by Du Pont filed Critical Du Pont
Publication of NO931700L publication Critical patent/NO931700L/en
Publication of NO931700D0 publication Critical patent/NO931700D0/en

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  • Polysaccharides And Polysaccharide Derivatives (AREA)

Abstract

En fremgangsmåte for fremstilling av nye polymere halogenderivater av chitosan (f.eks. en terpolymer om- fattende 1-35 % 2-deoksy-2-acetamido- glukoseenheter, 1-90 % 2-deoksy-2-aminoglukoseenheter og 8-95 % 2-deoksy- 2-halogenaminoglukoseenheter) omfatt- ende at chitosan eller et chitosansalt omsettes med et halogeneringsmiddel (f.eks. natriumhypokloritt). N-halogen- chitosanene er effektive som flokkuler- ingshj elpemidler.A process for preparing novel polymeric halogen derivatives of chitosan (eg, a terpolymer comprising 1-35% 2-deoxy-2-acetamido glucose units, 1-90% 2-deoxy-2-aminoglucose units and 8-95% 2-deoxy-2-halogenaminoglucose units) comprising reacting chitosan or a chitosan salt with a halogenating agent (e.g., sodium hypochlorite). The N-halogen chitosans are effective as flocculation aids.

NO931700A 1990-11-14 1993-05-10 N-HALOGENE CHITOSANES, PROCEDURE FOR PREPARATION AND USE OF SUCH NO931700D0 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/613,602 US5204452A (en) 1990-11-14 1990-11-14 N-halochitosans, their preparation and uses
PCT/US1991/008240 WO1992008742A1 (en) 1990-11-14 1991-11-13 N-halochitosans, their preparation and uses

Publications (2)

Publication Number Publication Date
NO931700L true NO931700L (en) 1993-05-10
NO931700D0 NO931700D0 (en) 1993-05-10

Family

ID=26783472

Family Applications (1)

Application Number Title Priority Date Filing Date
NO931700A NO931700D0 (en) 1990-11-14 1993-05-10 N-HALOGENE CHITOSANES, PROCEDURE FOR PREPARATION AND USE OF SUCH

Country Status (1)

Country Link
NO (1) NO931700D0 (en)

Also Published As

Publication number Publication date
NO931700D0 (en) 1993-05-10

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