IP Library › Patent Application 18604878
Patent Application
App. No. 18/604,878

ALPHA-1,3-GLUCAN GRAFT COPOLYMERS

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Patent No.
US None
App. No.
18/604,878
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.

Claims (25)

1 - 17 . (canceled)

18 . A composition comprising an ether-or ester-derivative of a graft copolymer, wherein said graft copolymer comprises:

(i) a backbone comprising a dextran, and

(ii) one or more alpha-1,3-glucan side chains comprising at least about 50% alpha-1,3 glycosidic linkages.

19 . The composition of claim 18 , wherein the dextran comprises 100% alpha-1,6 glycosidic linkages.

20 . The composition of claim 18 , wherein the weight-average degree of polymerization (DPw) of the backbone is at least about 10.

21 . The composition of claim 20 , wherein the DPw of the backbone is at least about 50.

22 . The composition of claim 21 , wherein the DPw of the backbone is at least about 500.

23 . The composition of claim 18 , wherein the dextran comprises a product of a dextransucrase enzyme that comprises an amino acid sequence that is at least 90% identical to SEQ ID NO:66.

24 . The composition of claim 18 , wherein the dextran comprises a product of a dextransucrase enzyme that comprises an amino acid sequence that is at least 90% identical to SEQ ID NO:67 or SEQ ID NO:68.

25 . The composition of claim 18 , wherein the dextran comprises a product of a dextransucrase enzyme that comprises an amino acid sequence that is at least 90% identical to SEQ ID NO:69.

26 . The composition of claim 18 , wherein the graft copolymer comprises at least two of said alpha-1,3-glucan side chains.

27 . The composition of claim 26 , wherein the graft copolymer comprises at least three of said alpha-1,3-glucan side chains.

28 . The composition of claim 27 , wherein the graft copolymer comprises at least four of said alpha-1,3-glucan side chains.

29 . The composition of claim 18 , wherein the alpha-1,3-glucan side chains comprise at least about 90% alpha-1,3 glycosidic linkages.

30 . The composition of claim 26 , wherein the alpha-1,3-glucan side chains comprise at least about 90% alpha-1,3 glycosidic linkages.

31 . The composition of claim 18 , wherein the DP or DPw of said one or more alpha-1,3-glucan side chains is at least about 10.

32 . The composition of claim 26 , wherein the DP or DPw of said at least two alpha-1,3-glucan side chains is at least about 10.

33 . The composition of claim 18 , wherein the composition comprises the ether-derivative of the graft copolymer.

34 . The composition of claim 18 , wherein the composition comprises the ester-derivative of the graft copolymer.

35 . The composition of claim 18 , wherein the composition is a household care product, personal care product, industrial product, pharmaceutical product, or food product.

36 . The composition of claim 18 , wherein the composition is a detergent composition.

37 . The composition of claim 18 , wherein the composition is a dishwashing detergent composition.

38 . The composition of claim 37 , wherein the dishwashing detergent composition is an automatic dishwashing detergent composition.

39 . The composition of claim 18 , wherein the composition is a fabric care composition.