Patent ID: 9251923
Filing Date: 2016-02-02
CPC Classification: C08G,C09D,H01B,H01L

Claim Text:
1. A charge-transporting varnish comprising: a substrate comprising an oligomer having a molecular weight of from 200 to 2,000; and a solvent comprising a good solvent and a poor solvent having a boiling point lower by at least 20° C. than said good solvent under 760 mmHg, wherein said good solvent is 1,3-dimethyl-2-imidazolidinone and said poor solvent is at least one selected from the group consisting of ketones, glycol ethers and alcohols; and wherein said substrate is dissolved in said solvents, wherein said oligomer is an oligoaniline derivative represented by the following formula (4) or a quinonediimine derivative as an oxidation product of the formula (4): wherein R