Title:
CHARGE-TRANSPORTING VARNISH
Document Type and Number:
WIPO Patent Application WO/2020/122113
Kind Code:
A1
Abstract:
A charge transporting varnish, which comprises a charge-transporting material, a high-molecular compound represented by formula (I) and an organic solvent, can provide a highly solvent-resistant thin film. By applying this thin film to a hole injection layer, etc., an organic EL element having excellent characteristics can be realized. (Ra1 to Ra8 independently represent a hydrogen atom, an alkyl group having 1-20 carbon atoms, an alkenyl group having 2-20 carbon atoms, an aryl group having 6-20 carbon atoms, etc., provided that Ra4 and Ra8 may be bonded to each other to form a single bond, etc.; Rb1 represents an aryl group having 6-20 carbon atoms or a heteroaryl group having 2-20 carbon atoms; Rb2 represents an alkyl group having 1-20 carbon atoms, an aryl group having 6-20 carbon atoms, a heteroaryl group having 2-20 carbon atoms or a hydrogen atom, provided that Rb1 and Rb2 may be bonded to each other to form a ring together with the carbon atom to which these groups are attached; and n represents an integer of 2 or greater.)
Inventors:
KURATA YOSUKE (JP)
Application Number:
PCT/JP2019/048452
Publication Date:
June 18, 2020
Filing Date:
December 11, 2019
Export Citation:
Assignee:
NISSAN CHEMICAL CORP (JP)
International Classes:
C07C309/43; C08K5/18; C08K5/42; C08L61/20; H01L51/50
Domestic Patent References:
| WO2015050253A1 | 2015-04-09 | |||
| WO2017217455A1 | 2017-12-21 | |||
| WO2010147155A1 | 2010-12-23 | |||
| WO2015146957A1 | 2015-10-01 |
Foreign References:
| JPS61151545A | 1986-07-10 |
Attorney, Agent or Firm:
PATENT PROFESSIONAL CORPORATION EI-MEI PATENT OFFICE (JP)
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