Title:
新規高分子緩衝剤およびそれを用いたエレクトロルミネッセント素子
Document Type and Number:
Japanese Patent JP4796685
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a novel polymeric cushioning agent and an organic electroluminescent element having a driving voltage reduced by improvement of a cushioning layer of a hole transporting layer. SOLUTION: The polymeric cushioning agent comprises (A) poly(3,4) ethylenedioxythiophenes having a recurring unit represented by formula (1), wherein R6-R9 are each independently a group selected from the group consisting of hydrogen and alkyl, alkoxy, alkylamino, aralkyl, aryl, aryl heteroaryl and cyano groups; and any two of R6-R9 can be combined together to form a ring, and (B) polystyrene-based sulfonic acids having a recurring unit represented by formula (2), wherein R1 is hydrogen or a methyl group; R2 and R5 are each independently a group selected from the group consisting of hydrogen and an alkyl group; and X is selected from the group consisting of hydrogen and an alkali metal. The organic electroluminescent element has a cushioning layer treated with the polymeric cushioning agent.
Inventors:
Junji Kido
Toshitaka Mori
Takayuki Suzuki
Toshitaka Mori
Takayuki Suzuki
Application Number:
JP2000140766A
Publication Date:
October 19, 2011
Filing Date:
May 12, 2000
Export Citation:
Assignee:
Chemipro Kasei Co., Ltd.
International Classes:
C08L65/00; C08F12/30; C08F26/12; C08L25/18; C08L39/04; H01L51/50
Domestic Patent References:
| JP8048858A | ||||
| JP11329738A | ||||
| JP2000030866A | ||||
| JP2000048960A | ||||
| JP2000091081A | ||||
| JP2000514590A | ||||
| JP2002524823A | ||||
| JP2002524829A |
Attorney, Agent or Firm:
Toshio Okamoto
Eiji Tomomatsu
Toshikazu Kawashima
Eiji Tomomatsu
Toshikazu Kawashima