Back to results
US 12,037,420 B2Granted
Dextran-poly alpha-1,3-glucan graft copolymers and synthesis methods thereof
AssigneeNutrition & Biosciences USA 4, Inc.
InventorsNatnael Behabtu, Samuel David Arthur
Life of this patent
Estimating the term…
Abstract
Compositions are disclosed herein comprising a graft copolymer having (i) a backbone comprising dextran with a molecular weight of at least about 100000 Daltons, and poly alpha-1,3-glucan side chains comprising at least about 95% alpha-1,3-glucosidic linkages. Further disclosed are reactions for producing such graft copolymers, as well as their use in absorbent materials.
Claims20
A composition comprising a graft copolymer that comprises:
- (i) a backbone comprising dextran, wherein the dextran comprises a product of a glucosyltransferase enzyme comprising an amino acid sequence that is at least 90% identical to SEQ ID NO:6 or SEQ ID NO:7, and
- (ii) one or more poly alpha-1,3-glucan side chains comprising at least about 95% alpha-1,3-glucosidic linkages;
- wherein the composition is
- (a) a product for aqueous liquid absorption selected from the group consisting of baby diapers, potty training pants, incontinence products, feminine hygiene products, wound healing dressings, and sanitary towels, or
- (b) a personal care product, household product, medical product, or industrial product.
2 more elements
Dependencies are inferred from the claim text.