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. 11, 2020
Filed:
Aug. 11, 2017
Akron Polymer Systems, Inc., Akron, OH (US);
Lang Hu, Akron, OH (US);
Liu Deng, Kingsport, TN (US);
Wentao Li, Kingsport, TN (US);
Robert Sharpe, Johnson City, TN (US);
Eduardo Cervo, Kingsport, TN (US);
Thauming Kuo, Kingsport, TN (US);
Bin Wang, Kingsport, TN (US);
Alan Phillips, Johnson City, TN (US);
Xiaoliang Zheng, Hudson, OH (US);
Peiyao Wang, Akron, OH (US);
Dong Zhang, Uniontown, OH (US);
Frank Harris, Boca Raton, FL (US);
Ted Germroth, Kingsport, TN (US);
Akron Polymer Systems, Inc., Akron, OH (US);
Abstract
Disclosed is a process for making nitrated styrenic fluoropolymers having various degrees of substitution. The nitrated styrenic fluoropolymer is capable of providing an exceptionally high birefringence ranging from 0.02 to 0.036. Further, the birefringence can be tuned by varying the degree of substitution (DS) of the nitro group on the styrenic ring to meet the need for optical compensation film applications. More particularly, the optical compensation films of the present invention are for use in an in-plane switching LCD (IPS-LCD) and OLED display.