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AssigneeHercules Incorporated
InventorsMary Jean Cash, Anita N. Chan, Herbert Thompson Conner, Patrick Joseph Cowan, Robert Alan Gelman, Kate Marritt Lusvardi, Samuel Anthony Thompson, Frank Peine Tise
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A method for producing derivatized microfibrillar polysaccharide, including but not limited to cellulose, derivatized by steric and/or electrostatic forces, where the electrostatic forces are provided by anionic charge or by a combination of both anionic and cationic charge, by stabilizing and/or microfibrillating a polysaccharide starting material. A method of modifying the rheological properties of a composition of matter using derivatized microfibrillar polysaccharide. Method of improving coatings, paper manufacture, and the stability of emulsions, dispersions, and foams using a derivatized microfibrillar polysaccharide. Compositions that include derivatized microfibrillar polysaccharide, including paper compositions, comestible compositions, non-comestible spreadable compositions, and emulsions, dispersion, and foams.
A derivatized microfibrillar polysaccharide, derivatized to comprise substituents that provide electrostatic and/or steric functionality, said electrostatic functionality comprising anionic charge, wherein the derivatized microfibrillar polysaccharide is characterized by forming a gel in water at at least one point in the concentration range of from about 0.05 wt. % to about 0.99 wt. % based on the total weight of the gel.
Microfibrillar carboxymethylcellulose having a degree of substitution of between about 0.10 and about 0.20.
A paper composition comprising derivatized microfibrillar cellulose derivatized to comprise groups that provide electrostatic and/or steric functionality, further wherein said electrostatic functionality comprises the presence of anionic charge.
Dependencies are inferred from the claim text.