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:
Aug. 26, 2014
Filed:
Apr. 23, 2013
Plextronics, Inc., Pittsburgh, PA (US);
Christopher T. Brown, Pittsburgh, PA (US);
Neetu Chopra, Pittsburgh, PA (US);
Christopher Knittel, Pittsburgh, PA (US);
Mathew Mathai, Monroeville, PA (US);
Venkataramanan Seshadri, Pittsburgh, PA (US);
Jing Wang, Gibsonia, PA (US);
Brian Woodworth, Pittsburgh, PA (US);
Solvay USA, Inc., Cranbury, NJ (US);
Abstract
A composition comprising: at least one compound comprising a hole transporting core, wherein the core is covalently bonded to a first arylamine group and also covalently bonded to a second arylamine group different from the first, and wherein the compound is covalently bonded to at least one intractability group, wherein the intractability group is covalently bonded to the hole transporting core, the first arylamine group, the second arylamine group, or a combination thereof, and wherein the compound has a molecular weight of about 5,000 g/mole or less. Blended mixtures of arylamine compounds, including fluorene core compounds, can provide good film formation and stability when coated onto hole injection layers. Solution processing of OLEDs is a particularly important application.