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:
Feb. 28, 2023
Filed:
Mar. 28, 2018
Applicant:
Eastman Chemical Company, Kingsport, TN (US);
Inventors:
Casey Lynn Elkins, Kingsport, TN (US);
Robert Jacks Sharpe, Johnson City, TN (US);
Bin Wang, Kingsport, TN (US);
Assignee:
Eastman Chemical Company, Kingsport, TN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08B 3/16 (2006.01); C08B 3/06 (2006.01); C08B 3/08 (2006.01); C08J 5/18 (2006.01);
U.S. Cl.
CPC ...
C08B 3/16 (2013.01); C08B 3/06 (2013.01); C08B 3/08 (2013.01); C08J 5/18 (2013.01); C08J 2301/10 (2013.01); C08J 2301/12 (2013.01); C08J 2301/14 (2013.01);
Abstract
The present application discloses regioselectively substituted cellulose esters, films made from the regioselectively substituted cellulose esters and methods for making the same. The regioselectively substituted cellulose esters are synthesized using trifluoroacetic anhydride and cellulose with various acyl donors or acyl donor precursors.