Varnish for formation of charge-transporting thin film
US10301484B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Jan 19, 2016 |
| Grant date | May 28, 2019 |
| Priority date | — |
| Expiry date | Jan 19, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B33/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Provided is a varnish for the formation of a charge-transporting thin film, said varnish including an organic solvent, a charge-transporting substance, and a 2,2,6,6-tetraalkylpiperidine-N-oxyl derivative represented by formula (T1) (in the formula, each RA independently represents a C1-20 alkyl group, and RB represents a hydrogen atom, a hydroxy group, an amino group, a carboxyl group, a cyano group, an oxo group, an isocyanato group, a C1-20 alkoxy group, a C2-20 alkylcarbonyloxy group, a C7-20 arylcarbonyloxy group, a C2-20 alkylcarbonylamino group or a C7-20 arylcarbonylamino group).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.