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. 07, 2014
Filed:
Aug. 08, 2011
Ruisong Xu, Monroeville, PA (US);
Xiao-man Dai, Export, PA (US);
Anil Kumar, Murrysville, PA (US);
Meng He, Murrysville, PA (US);
Chenguang LI, Monroeville, PA (US);
Rachael L. Yoest, Gibsonia, PA (US);
Ruisong Xu, Monroeville, PA (US);
Xiao-Man Dai, Export, PA (US);
Anil Kumar, Murrysville, PA (US);
Meng He, Murrysville, PA (US);
Chenguang Li, Monroeville, PA (US);
Rachael L. Yoest, Gibsonia, PA (US);
Transitions Optical, Inc., Pinellas Park, FL (US);
Abstract
The present invention relates to compounds represented by the following Formula Ic, in which R-Rcan each independently be selected from hydrogen or hydrocarbyl (e.g., methyl); Land Lare each independently a divalent linking group, such as a bond or —OC(O)—R—C(O)O—, where Rcan be divalent hydrocarbyl (e.g., —CHCH—); each Land each Leach independently represent a flexible segment, such as divalent linear or branched C-Calkyl; each Land each Leach independently represent a rigid segment including, for example, optionally substituted phenylen-1,4-diyl groups; t and s are each independently from 1 to 4; m and p are each independently from 0 to 4 for each t, provided that the sum of m and p is at least 1 for each t; q and r are each independently from 0 to 4 for each s, provided that the sum of q and r is at least 1 for each s; and Eand Ecan each independently be hydrogen or hydrocarbyl. The present invention also relates to compositions, such as liquid crystal compositions, and articles, such as optical elements, that include the compound represented by Formula Ic.