Process for production of modified hydroxyethyl cellulose
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United States of America Patent
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Sep 1, 1987
Grant Date -
N/A
app pub date -
Aug 27, 1986
filing date -
Sep 3, 1985
priority date (Note) -
Expired
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Abstract
A process for producing a modified hydroxyethyl cellulose comprising the steps of: allowing hydroxyethyl cellulose to be swollen in a solvent; and mixing the hydroxyethyl cellulose swollen in the solvent, with a 2-mercapto benzimidazole compound having the formula (I): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, and R.sup.4 independently represent hydrogen, methyl, or ethyl, and X is hydrogen, an alkali metal, an alkaline earth metal, or ammonium.
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