The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 30, 2004
Filed:
Sep. 27, 2002
Applicant:
Inventors:
Richard Patrick Swatloski, Tuscaloosa, AL (US);
Robin Don Rogers, Tuscaloosa, AL (US);
John David Holbrey, Tucaloosa, AL (US);
Assignee:
The University of Alabama, Tuscaloosa, AL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 1/00 ; C08L 1/02 ; D01F 2/02 ;
U.S. Cl.
CPC ...
C08L 1/00 ; C08L 1/02 ; D01F 2/02 ;
Abstract
Cellulose is dissolved in an ionic liquid without derivatization, and is regenerated in a range of structural forms without requiring the use of harmful or volatile organic solvents. Cellulose solubility and the solution properties can be controlled by the selection of the ionic liquid constituents, with small cations and halide or pseudohalide anions favoring solution.