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:
Sep. 04, 2018
Filed:
Feb. 18, 2014
Nissan Chemical Industries, Ltd., Tokyo, JP;
Naoki Nakaie, Funabashi, JP;
Yuki Takayama, Funabashi, JP;
NISSAN CHEMICAL INDUSTRIES, LTD., Tokyo, JP;
Abstract
A charge-transporting varnish including charge-transporting material comprising N,N'-diaryl benzidine derivatives represented by formula (1), a charge-accepting dopant comprising heteropoly acid, and an organic solvent. [In the formula, Rto Rindependently represent hydrogen, a halogen, an alkyl having 1 to 20 carbon atoms, an alkenyl having 2 to 20 carbon atoms or an alkynyl having 2 to 20 carbon atoms; and Arand Arindependently represent groups represented by formulas (2) or (3). (In the formula, Rto Rindependently represent hydrogen, a halogen, an alkyl having 1 to 20 carbon atoms, an alkenyl having 2 to 20 carbon atoms or an alkynyl having 2 to 20 carbon atoms; and Xand Xindependently represent hydrogen, a halogen, an alkyl having 1 to 20 carbon atoms, an alkenyl having 2 to 20 carbon atoms, an alkynyl having 2 to 20 carbon atoms, diphenylamino, 1-naphthylphenylamino, 2-naphthylphenylamino, di(1-naphthyl)-amino, and di(2-naphthyl)-amino or 1-naphthyl-2-naphtylamino.)]