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US 2014/0005377 A1Published application
Dissolution of Oxidized Cellulose and Particle Preparation by Dispersion and Neutralization
AssigneesCovidien LP, Confluent Surgical, Inc.
InventorsValentino Tramontano, Phillip Blaskovich, Rachit Ohri, Daniel S. Costa, Joshua Kennedy, Sajida Farooqi
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Abstract
A process for dissolving modified cellulose includes contacting modified cellulose solution with at least one neutralizing agent to form a plurality of modified cellulose particles.
Claims23
A process comprising:
- forming a modified cellulose solution;
- and
- contacting the modified cellulose solution with at least one neutralizing agent to form a plurality of modified cellulose particles.
A process comprising:
- forming an oxidized cellulose solution;
- and
- contacting the oxidized cellulose solution with at least one neutralizing agent to form a plurality of oxidized cellulose particles having a degree of oxidation from about 80% to about 120% of the degree of oxidation of the predissolved oxidized cellulose.
A process comprising:
- forming a modified cellulose solution;
- and
- contacting the dissolved modified cellulose with at least one neutralizing agent to form a plurality of modified cellulose particles having a molecular weight from about 80% to about 100% of the molecular weight of the predissolved modified cellulose.
Dependencies are inferred from the claim text.