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. 03, 2015
Filed:
Feb. 07, 2011
Hiroshige Tanaka, Kitakyushu, JP;
Tohru Asari, Kitakyushu, JP;
Kazuto Shiraishi, Kitakyushu, JP;
Hiroyuki Hayashida, Kitakyushu, JP;
Yasushi Koishikawa, Kitakyushu, JP;
Kazuaki Yoshimura, Kitakyushu, JP;
Takaya Ishiyama, Kitakyushu, JP;
Hiroshige Tanaka, Kitakyushu, JP;
Tohru Asari, Kitakyushu, JP;
Kazuto Shiraishi, Kitakyushu, JP;
Hiroyuki Hayashida, Kitakyushu, JP;
Yasushi Koishikawa, Kitakyushu, JP;
Kazuaki Yoshimura, Kitakyushu, JP;
Takaya Ishiyama, Kitakyushu, JP;
Nippon Steel & Sumikin Chemical Co., Ltd., Tokyo, JP;
Abstract
Provided are a polymer for an organic electroluminescent element, which improves light emission efficiency of the element and is applicable to a wet process, and an organic electroluminescent element, which is obtained using the polymer. The polymer for an organic electroluminescent element includes a repeating unit represented by the following general formula (1) in a repeating unit constituting a main chain. Further, the organic electroluminescent element includes organic layers between an anode and a cathode laminated on a substrate, in which at least one of the organic layers includes the polymer for an organic electroluminescent element, including an indolocarbazole skeleton in the repeating unit constituting a main chain. In the general formula (1), Z represents an N-indolocarbazolyl group, W represents a charge transporting group, m and n represent molar ratios, m represents 0 to 95 mol %, and n represents 5 to 100 mol.