Patent ID: 11970820
Assignee: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC D  A  C  B | IPC A  B  C  D

Claim 0:
1. A method of making a cellulose product, the method comprising:
contacting a cotton fabric with an oxidizing system to obtain an oxidized cotton material, wherein the cotton fabric is derived from a post-consumer cotton waste and the oxidizing system comprises an N-oxyl compound;
processing the oxidized cotton material to form a cellulose material; and
dissolving or suspending an active ingredient in the cellulose material to form the cellulose product;
wherein the active ingredient comprises an inorganic particle having moisture barrier properties, oxidation barrier properties, or a combination thereof;
wherein the inorganic particle comprises a silicon oxide nanoparticle, a cerium oxide nanoparticle, or a combination thereof; and
wherein the active ingredient is present in an amount of from 0.01% to 20% by weight, based on the weight of the cellulose product.