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:
Jan. 26, 2016
Filed:
Dec. 27, 2012
Eastman Chemical Company, Kingsport, TN (US);
Charles Michael Buchanan, Bluff City, TN (US);
Norma Lindsey Buchanan, Bluff City, TN (US);
Susan Northrop Carty, Kingsport, TN (US);
Chung-Ming Kuo, Kingsport, TN (US);
Juanelle Little Lambert, Gray, TN (US);
Michael Orlando Malcolm, Kingsport, TN (US);
Jessica Dee Posey-Dowty, Kingsport, TN (US);
Thelma Lee Watterson, Kingsport, TN (US);
Matthew Davie Wood, Gray, TN (US);
Margaretha Soderqvist Lindblad, Vallentuna, SE;
Eastman Chemical Company, Kingsport, TN (US);
Abstract
This invention provides cellulose ester interpolymers, and methods of oxidizing cellulose interpolymers and cellulose ester interpolymers. The invention also provides routes to access carboxylated cellulose ester derivatives with high acid numbers wherein the carboxyl group is attached directly to the cellulose backbone by a carbon-carbon bond. Through functionalization of an intermediate aldehyde, the corresponding cationic or zwitterionic cellulose ester derivatives can also be accessed. The interpolymers of the present invention have a number of end-use applications, for example, as binder resins in various types of coating compositions and as drug delivery agents.