PROCESS FOR PRODUCING ENVIRONMENT-FRIEND POLYELECTROLITE

PROCESS FOR PRODUCING ENVIRONMENT-FRIEND POLYELECTROLITE

Environment-friendly polyhydroxy carboxylic acid and acid salt polyelectrolytes are prepd. by partial hydrolysis and oxidn. of p;ysaccharides. This is carried out with HNO3 mixt. of H3NO3 and H2SO4, H2O2, sodium hypochlorite or other oxidising agents. The choice of type and concn. of oxidising agent...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: BECK,MIHALY,HU, ORSZAGH,ISTVAN,HU
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
COMPOSITIONS BASED THEREON
DERIVATIVES THEREOF
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
POLYSACCHARIDES
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:Environment-friendly polyhydroxy carboxylic acid and acid salt polyelectrolytes are prepd. by partial hydrolysis and oxidn. of p;ysaccharides. This is carried out with HNO3 mixt. of H3NO3 and H2SO4, H2O2, sodium hypochlorite or other oxidising agents. The choice of type and concn. of oxidising agent does not only influence the rate of reaction but also the relative proportions of polyhydroxy-polycarboxylic acids formed, significant in intended applications. (Dwg.0/0)