Inventors:
John D. Angerer - Hockessin DE
Jashawant J. Modi - Hockessin DE
Robert C. Szafranski - Hopewell VA
Assignee:
Aqualon Company - Wilmington DE
International Classification:
C08B 1120
Abstract:
Hydroxyethylcellulose (HEC), hydrophobically modified hydroxyethylcellulose (HMHEC), hydroxypropylcellulose (HPC), methylhydroxypropylcellulose (MHPC), carboxymethylhydroxyethylcellulose (CMHEC), guar, starch, xanthan, hydroxypropylguar (HP Guar) or carboxymethylhydroxypropylguar (CMHP Guar) are stepwise or continuously reacted with hydrogen peroxide to produce aqueous compositions with a solids content greater than 5% by weight at a viscosity at 25. degree. C. below 9500 mPa. s. It is preferred to use 30 to 50% hydrogen peroxide to depolymerize the polysaccharide.