Alpha-1,3-glucan graft copolymers
AssigneeNutrition & Biosciences USA 4, Inc.
InventorsRong Guan, James Joshua Ohane, Nikita Iltchenko, Yefim Brun, Brian McCauley, Laurie A. Howe, Yougen Li
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Abstract
Compositions are disclosed herein comprising a graft copolymer that comprises: (i) a backbone comprising dextran that has been modified with about 1%-25% alpha-1,2 branches, and (ii) one or more alpha-1,3-glucan side chains comprising at least about 50% alpha-1,3 glycosidic linkages. Further disclosed are reactions for producing such graft copolymers, as well as their use in derivatives, films and various other applications.
Claims16
A composition comprising an ether- or ester-derivative of a graft copolymer, wherein said graft copolymer comprises:
- (i) a backbone comprising a dextran, wherein the weight-average degree of polymerization (DPw) of the backbone is 10 to 500, and
- (ii) one or more alpha-1,3-glucan side chains comprising at least about 50% alpha-1,3 glycosidic linkages.
Dependencies are inferred from the claim text.