Varnish for formation of charge-transporting thin film
AssigneeNissan Chemical Industries, Ltd.
InventorMasayuki HIGASHI
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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).
Claims15
A charge-transporting thin film-forming varnish comprising a 2,2,6,6-tetraalkylpiperidine-N-oxyl derivative of formula (T1), a charge-transporting substance and an organic solvent
- (wherein each RA is independently an alkyl group of 1 to 20 carbon atoms;
- and RB is a hydrogen atom, a hydroxyl group, an amino group, a carboxyl group, a cyano group, an oxo group, an isocyanato group, an alkoxy group of 1 to 20 carbon atoms, an alkylcarbonyloxy group of 2 to 20 carbon atoms, an arylcarbonyloxy group of 7 to 20 carbon atoms, an alkylcarbonylamino group of 2 to 20 carbon atoms or an arylcarbonylamino group of 7 to 20 carbon atoms).
Dependencies are inferred from the claim text.