Polysaccharide derivatives and structures employing same

Patent metadata

Field	Value
Publication number	US-9321852-B2
Application number	US-201314073935-A
Country	US
Kind code	B2
Filing date	Nov 7, 2013
Priority date	Dec 20, 2006
Publication date	Apr 26, 2016
Grant date	Apr 26, 2016

Abstract

Polysaccharide derivatives, more particularly heteropolysaccharide derivatives, especially hemicellulose derivatives, methods for making same and structures employing same are provided.

First claim

What is claimed is:

1. A non-naturally occurring fiber comprising greater than 30% by weight on a dry fiber basis of a heteropolysaccharide derivative derived by replacing one or more of the original hydroxyl moieties present on one or more monomer units of a pure heteropolysaccharide with a non-hydroxyl moiety, wherein the non-hydroxyl moiety comprises a non-aromatic moiety is selected from the group consisting of ester moieties comprising fatty acid moieties, ether moieties comprising fatty acid moieties, polyethylene glycol moieties, acetate moieties, acetate-butyrate moieties, methyl moieties, ethyl moieties, hydroxyethyl moieties, and mixtures thereof wherein the heteropolysaccharide exhibits a degree of substitution of less than 1.0.

2. The fiber of claim 1 wherein the fiber comprises a fiber diameter of less than about 100 microns as measured according to the Fiber Diameter Test Method.

3. The fiber of claim 1 wherein the heteropolysaccharide derivative exhibits a contact angle of less than about 150° as determined by the Contact Angle Test Method.

4. The fiber of claim 3 wherein the heteropolysaccharide derivative exhibits a contract angle of less than about 60° as determined by the Contact Angle Test Method.

5. The fiber of claim 1 wherein the heteropolysaccharide derivative comprises a hemicellulose derivative.

6. The fiber of claim 1 wherein the fatty acid moiety is derived from a C 4 -C 24 fatty acid.

7. The fiber of claim 6 wherein the fatty acid moiety is derived from a fatty acid selected from the group consisting of: hexanoic, octanoic, decanoic, lauric, myristic, palmitic, stearic, arachidic, palmioleic, oleic, ricinoleic, linoleic, eicosenoic and mixtures thereof.

8. A fibrous structure comprising a non-naturally occurring fiber according to claim 1 .

9. The fibrous structure of claim 8 wherein the fibrous structure is a sanitary tissue product.

10. The fibrous structure of claim 9 wherein the sanitary tissue product is a multi-ply sanitary tissue product.

11. A non-naturally occurring fiber comprising greater than 30% by weight on a dry fiber basis of a heteropolysaccharide derivative derived by replacing one or more of the original hydroxyl moieties present on one or more monomer units of a pure heteropolysaccharide with a non-hydroxyl moiety, wherein the non-hydroxyl moiety comprises a non-aromatic moiety is-selected from the group consisting of ester moieties comprising fatty acid moieties, ether moieties comprising fatty acid moieties, polyethylene glycol moieties, acetate moieties, acetate-butyrate moieties, methyl moieties, ethyl moieties, hydroxyethyl moieties, and mixtures thereof, wherein the fiber comprises a fiber diameter of less than about 100 microns as measured according to the Fiber Diameter Test Method.

12. The fiber of claim 11 wherein the heteropolysaccharide derivative exhibits a contact angle of less than about 150° as determined by the Contact Angle Test Method.

13. The fiber of claim 12 wherein the heteropolysaccharide derivative exhibits a contract angle of less than about 60° as determined by the Contact Angle Test Method.

14. The fiber of claim 11 wherein the heteropolysaccharide derivative comprises a hemicellulose derivative.

15. The fiber of claim 11 wherein the fatty acid moiety is derived from a C 4 -C 24 fatty acid.

16. The fiber of claim 15 wherein the fatty acid moiety is derived from a fatty acid selected from the group consisting of: hexanoic, octanoic, decanoic, lauric, myristic, palmitic, stearic, arachidic, palmioleic, oleic, ricinoleic, linoleic, eicosenoic and mixtures thereof.

17. A fibrous structure comprising a non-naturally occurring fiber according to claim 11 .

18. The fibrous structure of claim 17 wherein the fibrous structure is a sanitary tissue product.

Assignees

• Procter & Gamble

Inventors

• Phan Dean Van
• Barcus Robert Lee
• Hamad-Ebrahimpour Alyssandrea Hope

Classifications

• C08B37/0057 Primary

  beta-D-Xylans, i.e. xylosaccharide, e.g. arabinoxylan, arabinofuronan, pentosans; (beta-1,3)(beta-1,4)-D-Xylans, e.g. rhodymenans; Hemicellulose; Derivatives thereof · CPC title

• Y10T428/298

  Physical dimension · CPC title

• C08B37/006 Primary

  Heteroglycans, i.e. polysaccharides having more than one sugar residue in the main chain in either alternating or less regular sequence; Gellans; Succinoglycans; Arabinogalactans; Tragacanth or gum tragacanth or traganth from Astragalus; Gum Karaya from Sterculia urens; Gum Ghatti from Anogeissus latifolia; Derivatives thereof · CPC title

• D01F2/00

  Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof · CPC title

• D01F9/00

  Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments · CPC title