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:
Oct. 29, 2024
Filed:
Nov. 01, 2023
Mitsubishi Chemical Corporation, Tokyo, JP;
Yanjun Li, Tokyo, JP;
Tomokazu Umemoto, Tokyo, JP;
Hideki Gorohmaru, Tokyo, JP;
Koichiro Iida, Tokyo, JP;
Kouji Adachi, Tokyo, JP;
Mitsubishi Chemical Corporation, Tokyo, JP;
Abstract
Provided are: a highly durable polymer having a high hole-injection/transport capacity; and a composition for an organic electroluminescent element, which contains the polymer. The polymer contains a repeating unit represented by the following Formula (1) or a repeating unit represented by the following Formula (2) (wherein, Arand Areach represent an aromatic hydrocarbon group optionally having a substituent, or an aromatic heterocyclic group optionally having a substituent; X represents —C(R)(R)—, —N(R)—, or —C(R)(R)—C(R)(R)—; Rand Ras well as Rand Reach independently represent an alkyl group optionally having a substituent; Rand Reach independently represent an alkyl group optionally having a substituent, an alkoxy group optionally having a substituent, or an aralkyl group optionally having a substituent; and Rto Rand Rto Reach independently represent hydrogen, an alkyl group optionally having a substituent, an aralkyl group optionally having a substituent, or an aromatic hydrocarbon group optionally having a substituent).