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:
Oct. 13, 2015
Filed:
Apr. 18, 2012
Applicants:
Charles Michael Buchanan, Kingsport, TN (US);
Norma Lindsey Buchanan, Kingsport, TN (US);
Inventors:
Charles Michael Buchanan, Kingsport, TN (US);
Norma Lindsey Buchanan, Kingsport, TN (US);
Assignee:
EASTMAN CHEMICAL COMPANY, Kingsport, TN (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08B 3/16 (2006.01); C08B 3/18 (2006.01); C08B 1/00 (2006.01); C08B 3/22 (2006.01); C08B 3/24 (2006.01);
U.S. Cl.
CPC ...
C08B 1/003 (2013.01); C08B 3/16 (2013.01); C08B 3/18 (2013.01); C08B 3/22 (2013.01); C08B 3/24 (2013.01);
Abstract
Ionic liquids and cellulose ester compositions and processes for producing ionic liquids and cellulose esters. Cellulose esters can be produced by esterifying cellulose in a reaction medium comprising one or more ionic liquids. Cellulose esters prepared via the methods of the present invention can be contacted with at least one bleaching agent to produce bleached cellulose esters having a ΔE value of less than 30.