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. 25, 2025
Filed:
Aug. 16, 2023
Transitions Optical, Ltd., Tuam, IE;
Ramaiahgari Reddy, Murrysville, PA (US);
Alan M. Grubb, Pittsburgh, PA (US);
Anil Kumar, Murrysville, PA (US);
Yannian Li, Solon, OH (US);
Suvagata Tripathi, Kent, OH (US);
Transitions Optical, Ltd., Tuam, IE;
Abstract
The present invention relates to mesogen compounds that include a first mesogen (Mesogen-1) and a second mesogen (Mesogen-2) that are connected by a linking group (-L-), as represented by the following Formula (I): Mesogen-1, and optionally Mesogen-2, each independently include the following terminal group, where R is hydrogen, alkyl, or alkoxy. Mesogen-2 optionally includes a terminal group P—, which is selected from R, acrylate, methacrylate, trihalomethacrylate, oxirane, hydroxyl, carboxylic acid, and carboxylic acid ester. Mesogen-1 and Mesogen-2 together include a total of at least seven, or at least eight, cyclic groups. In some cases, Mesogen-1 and Mesogen-2 are the same. The present invention also relates to liquid crystal compositions that include such mesogen compounds, and to optical elements that include such mesogen compounds.