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:
Apr. 03, 2012
Filed:
Feb. 13, 2008
Charles Michael Buchanan, Kingsport, TN (US);
Norma Lindsey Buchanan, Kingsport, TN (US);
Robert Thomas Hembre, Johnson City, TN (US);
Juanelle Little Lambert, Gray, TN (US);
Charles Michael Buchanan, Kingsport, TN (US);
Norma Lindsey Buchanan, Kingsport, TN (US);
Robert Thomas Hembre, Johnson City, TN (US);
Juanelle Little Lambert, Gray, TN (US);
Eastman Chemical Company, Kingsport, TN (US);
Abstract
Ionic liquids and cellulose ester compositions and processes and apparatus for producing ionic liquids and cellulose esters. Cellulose esters can be produced by dissolving cellulose in carboxylated ionic liquids and thereafter contacting the cellulose solution with at least one acylating reagent. Cellulose esters produced via the present invention can comprise ester groups that originate from the carboxylated ionic liquid and/or the acylating reagent.