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:
Jun. 29, 2021
Filed:
Mar. 21, 2017
Sumitomo Chemical Company, Limited, Tokyo, JP;
Cambridge Display Technology Limited, Cambridgeshire, GB;
Satoshi Kobayashi, Tsukuba, JP;
Takayuki Iijima, Tsukuba, JP;
Nobuhiko Akino, Tsukuba, JP;
Sheena Zuberi, Godmanchester, GB;
SUMITOMO CHEMICAL COMPANY, LIMITED, Tokyo, JP;
CAMBRIDGE DISPLAY TECHNOLOGY LIMITED, Cambridgeshire, GB;
Abstract
A compound represented by the formula (1) is provided: wherein Arepresents an oxygen atom, a sulfur atom, —NR— or —PR—; at least one Ais —NR— or —PR—; Rrepresents a hydrogen atom, an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryloxy group, an alkylsulfenyl group, a cycloalkylsulfenyl group, an arylsulfenyl group or a disubstituted amino group; Rand Rrepresent an alkyl group, a cycloalkyl group, an aryl group, an alkoxy group, a cycloalkoxy group, an aryloxy group, an alkylsulfenyl group, a cycloalkylsulfenyl group, an arylsulfenyl group, a monovalent heterocyclic group, a halogen atom or a disubstituted amino group; Rrepresents a hydrogen atom, —C(R), —OR, —N(R)or —Si(R); m represents an integer of 0 to 3; and n represents an integer of 0 to 4.