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. 08, 2013
Filed:
Feb. 26, 2009
Applicants:
Bin Wang, Kingsport, TN (US);
Michael Eugene Donelson, Kingsport, TN (US);
Marcus David Shelby, Fall Branch, TN (US);
James Collins Maine, Church Hill, TN (US);
Inventors:
Bin Wang, Kingsport, TN (US);
Michael Eugene Donelson, Kingsport, TN (US);
Marcus David Shelby, Fall Branch, TN (US);
James Collins Maine, Church Hill, TN (US);
Assignee:
Eastman Chemical Company, Kingsport, TN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G 18/62 (2006.01); A61K 9/28 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to films made from mixed cellulose esters having low hydroxyl content and certain plasticizers. These films can exhibit +C plate, −A plate, and biaxial Nz behavior, which make them particularly suitable for use in optical applications, such as in liquid crystal displays (LCD) as protective and compensator films.