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:
May. 31, 2011
Filed:
May. 07, 2004
Andreas Kanitz, Höchstadt, DE;
Wolfgang Rogler, Möhrendorf, DE;
Jasmin Woerle, Fuerth, DE;
OSRAM Opto Semiconductors GmbH, Regensburg, DE;
Abstract
A K type of copolyarylborane: wherein hydrogen atoms are bonded to the ends; Arrepresents at least one of Ar, Ar, and Ar; each of Arand Arrepresents an arylene radical; Arrepresents an heteroaromatic arylene radical; Arhas a π electron density of no less than that of benzene; Aris capable of hole transport; Arhas a π electron density of no greater than that of benzene and less than that of Ar; x, y, and z respectively represent the molar parts of Ar, Ar, and Ar; each of x, y, and z is in the range of 0-1, and x+y+z=1; and R represents an aryl radical. This K type of copolyarylborane may be of use for organic light-emitting diodes (OLEDs), organic solar cells, organic photodetectors, and organic field-effect transistors.