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:
Apr. 30, 2013
Filed:
Aug. 08, 2011
Xiao-man Dai, Export, PA (US);
Ruisong Xu, Monroeville, PA (US);
Meng He, Murrysville, PA (US);
Anil Kumar, Murrysville, PA (US);
Rachael L. Yoest, Gibsonia, PA (US);
Chenguang LI, Monroeville, PA (US);
Xiao-Man Dai, Export, PA (US);
Ruisong Xu, Monroeville, PA (US);
Meng He, Murrysville, PA (US);
Anil Kumar, Murrysville, PA (US);
Rachael L. Yoest, Gibsonia, PA (US);
Chenguang Li, Monroeville, PA (US);
Transitions Optical, Inc., Pinellas Park, FL (US);
Abstract
The present invention relates to compounds represented by the following Formula Ia, in which each R-Rcan in each case be independently selected from hydrogen or hydrocarbyl (e.g., methyl); Ris a multivalent linking group, such as Lis a divalent linking group, such as a bond or divalent optionally substituted hydrocarbyl; each Lindependently represents a flexible segment, such as divalent linear or branched C-Calkyl; each Lindependently represents a rigid segment including, for example, optionally substituted phenylen-1,4-diyl groups; t is 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; and E can be hydrogen or optionally substituted 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 Ia.