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Optical compensation films based on fluoropolymers

Invented by: Xiaoliang Zheng
Hudson, OH

Dong Zhang
Uniontown, OH

Jiaokai Jing
Uniontown, OH

Frank Harris
Boca Raton, FL

Brian King
Jonesborough, TN

Ted Germroth
Kingsport, TN

Thauming Kuo
Kingsport, TN Applicant: Name City State Country Type Zheng

Originally Assigned to: Akron Polymer Systems, Inc.
Akron, OH Family ID: 1000000630795
[Now assigned to . . .]

Issued:2014-08-12
Filed:2010-09-24
Application No:12890011
Examined by:Raudenbush; Ellen S.

An optical compensation film composition is disclosed herein having a polymer film and a substrate, wherein the polymer film has a positive birefringence greater than 0.005 throughout the wavelength range of 400 nm<.lamda.<800 nm, the film having been cast from a polymer solution comprising a solvent and a polymer having a moiety of ##STR00001## wherein R.sup.1, R.sup.2, and R.sup.3 are each independently hydrogen atoms, alkyl groups, substituted alkyl groups, or halogens, wherein at least one of R.sup.1, R.sup.2, and R.sup.3 is a fluorine atom, and wherein R is hydrogen or a substituent on the styrenic ring.

[pdf] U.S. Pat. No. 8,802,238

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