Inventor

Vijay Kumar

Document Type

Patent

Patent Number

US Patent 6,821,531

Patent agency

United States Patent and Trademark Office

Publication Date

11-23-2004

Assignee

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

Application Number

09/946,658

Date Filed

2001-09-05

Total Pages

10 pages

Abstract

A new cellulose excipient suitable for use as a binder, filler, and/or disintegrant in the development of solid dosage forms and as a bodying agent or a drug carrier in the preparation of topical formulations is described. The cellulose excipient is formed by soaking a source of cellulose in an aqueous alkali metal hydroxide solution. The cellulose is then regenerated, washed, and optionally hydrolyzed with a dilute mineral acid. The cellulose excipient is also useful as an aqueous dispersion in topical formulations and in the manufacture of cellulose beads.

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This work has been identified with a Creative Commons Public Domain Mark 1.0.

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URL

https://ir.uiowa.edu/patents/364