E.i. Dupont De Nemours and Company

Nutrition & Biosciences USA 4, Inc.

Dupont Industrial Biosciences Usa, LLC

Andrea M Perticone

T Joseph Dennes

Jayme L Paullin

Rakesh Nambiar

Rahul B Kasat

Michael W Cobb

Debora Flanagan Massouda

Vindhya Mishra

A hydrocolloid or aqueous solution comprising a poly alpha-1,3-glucan ether compound is disclosed having a viscosity of at least about 10 centipoise (cPs). The poly alpha-1,3-glucan ether compound in these compositions has a degree of substitution of about 0.05 to about 3.0. Also disclosed is a method for increasing the viscosity of a hydrocolloid or aqueous composition using a poly alpha-1,3-glucan ether compound.

Use of poly alpha-1,3-glucan ethers as viscosity modifiers

Poly alpha-1,3-glucan ether compounds are disclosed herein comprising positively charged organic groups. The degree of substitution of the ether compounds is about 0.05 to about 3.0. Also disclosed are methods of producing poly alpha-1,3-glucan ether compounds having positively charged organic groups, as well as methods of using these ether compounds for increasing the viscosity of a aqueous compositions. Hydrocolloids and aqueous solutions comprising the ether compounds are also disclosed.

Cationic poly alpha-1,3-glucan ethers

The present invention is directed toward a process for making poly alpha-1,3-glucan formate films. These films are translucent or transparent and can be used in packaging applications.

Production of poly alpha-1,3-glucan formate films

Compositions comprising oxidized poly alpha-1,3-glucan compounds are disclosed herein. Oxidized poly alpha-1,3-glucan compounds are produced by contacting poly alpha-1,3-glucan under aqueous conditions with at least one N-oxoammonium salt.

Oxidized poly alpha-1,3-glucan

Poly alpha-1,3-glucan ether compounds are disclosed herein with a degree of substitution of about 0.05 to about 3.0. Also disclosed are methods of producing poly alpha-1,3-glucan ether compounds.

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Clayton, DE, United States of America

Andrea M Perticone