Invention Grant
- Patent Title: Composition, organic-electroluminescence-device material, composition film, organic electroluminescence device, and electronic device
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Application No.: US15928636Application Date: 2018-03-22
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Publication No.: US10862049B2Publication Date: 2020-12-08
- Inventor: Masahiro Kawamura , Hiroyuki Iwabuchi , Tetsuya Masuda , Hitoshi Kuma
- Applicant: IDEMITSU KOSAN CO., LTD.
- Applicant Address: JP Tokyo
- Assignee: IDEMITSU KOSAN CO., LTD.
- Current Assignee: IDEMITSU KOSAN CO., LTD.
- Current Assignee Address: JP Tokyo
- Agency: Foley & Lardner LLP
- Priority: JP2017-060034 20170324
- Main IPC: H01L51/00
- IPC: H01L51/00 ; C09K11/06 ; C07D403/14 ; C07D209/86 ; H01L51/50
Abstract:
A composition contains a mixture of at least two compounds, the at least two compounds containing a first compound represented by a formula (1) and a second compound represented by a formula (2). In the formula (1), R1 to R4, A1 and A2 include five cyclic structures in total each represented by a formula (1a) below. In the formula (2), one of A3 and A4 is a substituent represented by a formula (2a), and the other thereof is represented by a formula (2b).
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