Dextran-alpha-glucan graft copolymers and derivatives thereof
AssigneeNutrition & Biosciences USA 4, Inc.
InventorsDouglas J. Adelman, Natnael Behabtu, Christian Peter Lenges, Kyle Kim, Geert Van Der Kraan, Rong Guan
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Abstract
Disclosed herein are compositions comprising at least one alpha-glucan graft copolymer derivative compound (e.g., ether or ester) having a degree of substitution (DoS) up to about 3.0. The precursors of these derivative compounds are graft copolymers that comprise a dextran backbone and alpha-glucan side chains. At least about 30% of the glycosidic linkages of the alpha-glucan side chains are alpha-1,3 glycosidic linkages. Further disclosed are methods of producing graft copolymer derivatives, as well as their use in various applications and products.
Claims20
A composition comprising at least one graft copolymer ether compound having a degree of substitution (DoS) up to about 3.0, wherein the graft copolymer comprises:
- (i) a backbone comprising dextran, and
- (ii) one or more alpha-glucan side chains comprising at least about 30% alpha-1,3 glycosidic linkages;
- wherein the graft copolymer ether compound is (i) an anionic graft copolymer ether compound, or (ii) a cationic graft copolymer ether compound,
- and wherein the graft copolymer ether compound is crosslinked.
Dependencies are inferred from the claim text.