Patent ID: 9499636
Filing Date: 2016-11-22
CPC Classification: C08B,C08J,C08L

Claim Text:
1. A process comprising: contacting an oxidized cellulose with a solvent under an inert atmosphere to form a swelled oxidized cellulose; adjusting the swelled oxidized cellulose to a first temperature from about 115° C. to 145° C.; contacting the swelled oxidized cellulose with a salt under the inert atmosphere to form an oxidized cellulose solution; adjusting the oxidized cellulose solution to a second temperature from about 90° C. to about 120° C.; and contacting the oxidized cellulose solution with at least one multivalent cation selected from cations of calcium, barium, zinc, magnesium, chromium, platinum, or iron to form a plurality of oxidized cellulose particles.