Water-sol. cellulose sulphate with high soln. viscosity - by heterogeneous sulphation of high mol. wt. cellulose with mixt. of propanol and sulphuric acid at specific temp

A process is claimed for the prodn. of cellulose sulphate with high soln. viscosity (I), by heterogeneous sulphation of high-mol. wt. cellulose starting material (II) in a mixt. of propanol and sulphuric acid, opt. in the presence of toluene as dispersant; the novelty is that sulphation is carried o...

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Hauptverfasser:	DAUTZENBERG, HORST, LUKANOFF, BRIGITTE, HOLZAPFEL, GABRIELE, O-1530 TELTOW, DE
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON DERIVATIVES THEREOF METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS POLYSACCHARIDES THEIR PREPARATION OR CHEMICAL WORKING-UP
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