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:
Nov. 03, 2020
Filed:
Apr. 10, 2015
Sumitomo Chemical Company, Limited, Tokyo, JP;
Shin-Ya Tanaka, Tsukuba, JP;
Ryuji Matsumoto, Tsukuba, JP;
SUMITOMO CHEMICAL COMPANY, LIMITED, Tokyo, JP;
Abstract
A composition is provided containing a phosphorescent compound and a polymer compound having a constitutional unit represented by the formula (Y):Ar  (Y)wherein Arrepresents an arylene group, a divalent heterocyclic group or the like; and at least one constitutional unit selected from the constitutional units represented by the formulas (Ia) to (Id): wherein m represents an integer of 0 to 4, n represents an integer of 0 to 3, Rrepresents an alkyl group, an alkoxy group, an aryl group, a monovalent heterocyclic group or the like, Rrepresents a hydrogen atom, an alkyl group, an alkoxy group, an aryl group, a monovalent heterocyclic group or the like, Ar represents an aromatic hydrocarbon group or a heterocyclic group, nA and nB represent an integer of 0 to 3, and Land Lrepresent an alkylene group, a cycloalkylene group, an arylene group or a divalent heterocyclic group.