Invention Grant
- Patent Title: Cellulose ester optical films
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Application No.: US13409747Application Date: 2012-03-01
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Publication No.: US09796791B2Publication Date: 2017-10-24
- Inventor: Charles Michael Buchanan , Michael Eugene Donelson , Elizabeth Guzman-Morales , Peter Borden Mackenzie , Bin Wang
- Applicant: Charles Michael Buchanan , Michael Eugene Donelson , Elizabeth Guzman-Morales , Peter Borden Mackenzie , Bin Wang
- Applicant Address: US TN Kingsport
- Assignee: EASTMAN CHEMICAL COMPANY
- Current Assignee: EASTMAN CHEMICAL COMPANY
- Current Assignee Address: US TN Kingsport
- Agent Steven A. Owen
- Main IPC: C09K19/02
- IPC: C09K19/02 ; C08B3/16 ; C08J5/18 ; C08L1/14 ; G02B1/04 ; C08B3/00 ; C08B3/06 ; C08B3/08

Abstract:
Regioselectively substituted cellulose esters having a plurality of aryl-acyl substituents and a plurality of alkyl-acyl substituents are disclosed along with methods for making the same. Such cellulose esters may be suitable for use in optical films, such as optical films having certain Nz values, −A optical films, and/or +C optical films. Optical films prepared employing such cellulose esters have a variety of commercial applications, such as, for example, as compensation films in liquid crystal displays and/or waveplates in creating circular polarized light used in 3-D technology.
Public/Granted literature
- US20120263890A1 Cellulose Ester Optical Films Public/Granted day:2012-10-18
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