Nonwoven glucan webs
AssigneeDupont Industrial Biosciences USA, LLC
InventorNatnael Behabtu
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Abstract
Nonwoven webs formed from modified 1,3-α-D-glucan polymer and methods of forming the nonwoven webs are disclosed. The modified 1,3-α-D-glucan polymer can have a number average degree of polymerization in the range of from 55 to 10,000. The nonwoven webs can be used for personal hygiene wipes, filtration media, apparel or other uses.
Claims12
A nonwoven web comprising fiber, wherein the fiber consists of modified 1,3-α-D-glucan polymer, wherein the modified 1,3-α-D-glucan polymer comprises 90% or greater α-1,3-glycosidic linkages, less than 1 α-1,3,6-glycosidic branch points, and a number average degree of polymerization of 55 to 10000;
- wherein the nonwoven web was formed on (i) a substrate under vacuum, (ii) a screen, (iii) a perforated substrate, or (iv) a belt.
A nonwoven web comprising fiber, wherein the fiber comprises modified 1,3-α-D-glucan polymer, wherein the modified 1,3-α-D-glucan polymer comprises 90% or greater α-1,3-glycosidic linkages, less than 1% α-1,3,6-glycosidic branch points, and a number average degree of polymerization of 55 to 10000, and wherein the modified 1,3-α-D-glucan polymer is modified with benzyl groups.
Dependencies are inferred from the claim text.