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BR9707771A - Process to reduce the viscosity of a polysaccharide - Google Patents

Process to reduce the viscosity of a polysaccharide

Info

Publication number
BR9707771A
BR9707771A BR9707771-2A BR9707771A BR9707771A BR 9707771 A BR9707771 A BR 9707771A BR 9707771 A BR9707771 A BR 9707771A BR 9707771 A BR9707771 A BR 9707771A
Authority
BR
Brazil
Prior art keywords
polysaccharide
viscosity
reduce
hydrogen peroxide
acylated
Prior art date
Application number
BR9707771-2A
Other languages
Portuguese (pt)
Inventor
Dogan Sahin Sivasligil
Theodoor Maximiliaan Slaghek
Dirk De Wit
Kornelis Fester Gotlieb
Reinier Jozef Joannes Jansen
Hans Van Overeem
Original Assignee
Kemira Chemicals Bv
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 Kemira Chemicals Bv filed Critical Kemira Chemicals Bv
Publication of BR9707771A publication Critical patent/BR9707771A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B15/00—Preparation of other cellulose derivatives or modified cellulose, e.g. complexes
    • C08B15/02—Oxycellulose; Hydrocellulose; Cellulosehydrate, e.g. microcrystalline cellulose
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B31/00—Preparation of derivatives of starch
    • C08B31/18—Oxidised starch

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)
  • Medicinal Preparation (AREA)
  • Cosmetics (AREA)
  • Paper (AREA)

Abstract

"PROCESSO PARA REDUZIR A VISCOSIDADE DE UM POLISSACARìDEO". Descreve-se um processo para reduzir a viscosidade de polissacarídeos tais como amido, mediante tratamento com peróxido de hidrogênio na presença de um polissacarídeo acilado como um ativador. O polissacarídeo acilado é usado, em particular, em uma quantidade que é equivalente a pelo menos um grupo acila por 100 unidades de monossacarídeos. O peróxido de hidrogênio é preferivelmente usado de 2 a 20% em peso, em relação ao total de polissacarídeo e polissacarídeo acilado."PROCESS TO REDUCE THE VISCOSITY OF A POLYSACARID". A process for reducing the viscosity of polysaccharides such as starch is described by treatment with hydrogen peroxide in the presence of an acylated polysaccharide as an activator. The acylated polysaccharide is used, in particular, in an amount that is equivalent to at least one acyl group per 100 units of monosaccharides. Hydrogen peroxide is preferably used from 2 to 20% by weight, based on the total polysaccharide and acylated polysaccharide.

BR9707771-2A 1996-02-29 1997-02-28 Process to reduce the viscosity of a polysaccharide BR9707771A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1002494A NL1002494C2 (en) 1996-02-29 1996-02-29 Method for oxidizing starch.
PCT/NL1997/000098 WO1997031951A1 (en) 1996-02-29 1997-02-28 Process for oxidising starch

Publications (1)

Publication Number Publication Date
BR9707771A true BR9707771A (en) 2000-01-04

Family

ID=19762420

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9707771-2A BR9707771A (en) 1996-02-29 1997-02-28 Process to reduce the viscosity of a polysaccharide

Country Status (20)

Country Link
EP (1) EP0883630A1 (en)
JP (1) JP2000506197A (en)
KR (1) KR19990087307A (en)
CN (1) CN1212708A (en)
AU (1) AU723782B2 (en)
BG (1) BG102731A (en)
BR (1) BR9707771A (en)
CA (1) CA2247109A1 (en)
CZ (1) CZ266998A3 (en)
EA (1) EA000896B1 (en)
HU (1) HUP9901784A3 (en)
IL (1) IL125942A0 (en)
NL (1) NL1002494C2 (en)
NZ (1) NZ331585A (en)
PL (1) PL328613A1 (en)
SK (1) SK119098A3 (en)
TR (1) TR199801653T2 (en)
WO (1) WO1997031951A1 (en)
YU (1) YU37298A (en)
ZA (1) ZA971785B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1007085C2 (en) * 1997-09-19 1999-03-22 Inst Voor Agrotech Onderzoek Carbohydrate oxidation with hydrogen peroxide
NL1010660C2 (en) * 1998-11-26 2000-05-30 Inst Voor Agrotech Onderzoek Method for oxidizing starch.
DE19953589B4 (en) 1999-11-08 2005-05-25 Sca Hygiene Products Gmbh Polysaccharide with functional groups, process for its preparation and products made therefrom
KR100371866B1 (en) * 2000-06-24 2003-02-11 주식회사 삼양제넥스 Modified starch useful for paper surface sizing and a method thereof
DE10241040B4 (en) * 2001-09-04 2004-11-18 Heppe Gmbh Biotechnologische Systeme Und Materialien Modified polysaccharide materials and process for their manufacture
CN101177459B (en) * 2007-11-30 2010-05-19 四川大学 Oxidized starch with high carbonyl content and its preparation method
US8641863B2 (en) * 2011-09-30 2014-02-04 Weyerhaeuser Nr Company Catalytic carboxylation of cellulose fibers in a continuous process with multiple additions of catalyst, secondary oxidant and base to a moving slurry of cellulose fibers
KR101409213B1 (en) * 2012-12-20 2014-06-19 대상 주식회사 Method for decreasing sulfurous acid included in by-products of corn wet-milling
EP3205673B1 (en) * 2016-02-12 2018-05-23 Coöperatie Avebe U.A. Oxidation of starch
PL3416740T3 (en) 2016-02-19 2021-05-17 Intercontinental Great Brands Llc Processes to create multiple value streams from biomass sources
CN114751994B (en) * 2022-03-18 2023-02-17 西南林业大学 Acetylated oxidized starch and preparation method thereof, modified urea-formaldehyde resin adhesive and preparation method and application thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE443524A (en) * 1940-07-01
BE549817A (en) * 1955-07-27
ATE151455T1 (en) * 1990-12-28 1997-04-15 Ausimont Spa METHOD FOR INCREASING THE BLEACHING EFFECTIVENESS OF INORGANIC PERSONAL SALTS
US5362868A (en) * 1993-06-18 1994-11-08 Degussa Aktiengesellshaft Thinning of granular starch

Also Published As

Publication number Publication date
CN1212708A (en) 1999-03-31
EA000896B1 (en) 2000-06-26
NL1002494C2 (en) 1997-09-01
HUP9901784A2 (en) 1999-10-28
EA199800778A1 (en) 1999-02-25
CZ266998A3 (en) 1999-03-17
AU723782B2 (en) 2000-09-07
SK119098A3 (en) 1999-06-11
PL328613A1 (en) 1999-02-01
CA2247109A1 (en) 1997-09-04
ZA971785B (en) 1997-09-29
AU2235497A (en) 1997-09-16
EP0883630A1 (en) 1998-12-16
BG102731A (en) 1999-07-30
KR19990087307A (en) 1999-12-27
JP2000506197A (en) 2000-05-23
YU37298A (en) 1999-09-27
NZ331585A (en) 2000-03-27
WO1997031951A1 (en) 1997-09-04
TR199801653T2 (en) 1998-12-21
HUP9901784A3 (en) 1999-11-29
IL125942A0 (en) 1999-04-11

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Legal Events

Date Code Title Description
EG Technical examination (opinion): publication of technical examination (opinion)
B09B Patent application refused [chapter 9.2 patent gazette]