Document Type

Patent

Patent Number

US Patent 7,595,392

Patent agency

United States Patent and Trademark Office

Publication Date

9-29-2009

Assignee

University of Iowa Research Foundation (Iowa City, IA, US)

Application Number

10/007,866

Date Filed

2001-12-06

Total Pages

8 pages

Abstract

The present invention relates to the preparation of a series of oxidized cellulose esters suitable for use as a drug carrier in the development of biodegradable controlled and/or sustained release pharmaceutical, agricultural, and veterinary compositions, such as films, compacts, microspheres, and pellets. The esters are prepared by acylation of oxidized cellulose having at least 3% carboxyl groups. The resulting oxidized cellulose esters are soluble in aqueous alkaline solutions, water, and a variety of organic solvents.

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URL

https://ir.uiowa.edu/patents/489