High solids low viscosity polysaccharides

Details High solids low viscosity polysaccharides High solids low viscosity polysaccharides

C - Chemistry, Metallurgy

08

B

C08B 11/04 (2006.01) C08B 11/20 (2006.01) C08B 37/00 (2006.01) C09D 101/00 (2006.01) C09D 103/00 (2006.01) C09D 105/00 (2006.01)

Patent

CA 2046089

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 25oC below 9500 mPa.s. It is preferred to use 30 50% hydrogen peroxide to depolymerize the polysaccharide.

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