Carboxymethylsulphoethyl celluloses and a process for their preparation
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United States of America Patent
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Mar 19, 1991
Grant Date -
N/A
app pub date -
Dec 9, 1988
filing date -
Dec 11, 1987
priority date (Note) -
Expired
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Abstract
Improved water soluble carboxymethylsulphoethyl celluloses may be obtained by suspending cellulose, adding compounds which transfer sulphoalkyl and carboxymethyl and then etherifying after alkalization.
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