Title:
A constituent and the light emitting element using it
Document Type and Number:
Japanese Patent JP6222385
Kind Code:
B2
Abstract:
Provided is a composition which contains a phosphorescent compound and a solvent, and which is useful for the production of a film having excellent planarity if used in an ejection-type coating method. A composition which contains a phosphorescent compound, a solvent (A) and a solvent (B), and wherein: the boiling point of the solvent (A) at 1 atmosphere (bpA (°C)) and the boiling point of the solvent (B) at 1 atmosphere (bpB (°C)) satisfy formula (11) and formula (12); and the content of the solvent (A) (wtA (weight)) and the content of the solvent (B) (wtB (weight)) satisfy formula (13). bpB < 200°C ≤ bpA (11) 70°C ≤ bpA - bpB ≤ 120°C (12) wtB ≤ wtA (13)
Inventors:
Hidenobu Kakimoto
Application Number:
JP2016570896A
Publication Date:
November 01, 2017
Filing Date:
January 13, 2016
Export Citation:
Assignee:
Sumitomo Chemical Co., Ltd.
International Classes:
H01L51/50; C08K5/56; C08L65/00; C09K11/06
Domestic Patent References:
| JP2009267299A | ||||
| JP2009140922A | ||||
| JP2013527980A | ||||
| JP201166388A | ||||
| JP201142794A | ||||
| JP2008226686A | ||||
| JP2009266824A |
Foreign References:
| WO2013146806A1 |
Attorney, Agent or Firm:
Toru Nakayama
Toru Sakamoto
Toru Sakamoto
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