Abstract: There is provided a compound represented by the following general formula (1). [Chem. 1] (X)(Z)??(1) (in which, X represents a basic dye having at least one amino group having 0 to 20 carbon atoms which may have a substituent, and Z represents a non-coloring anion including an amino acid.

Abstract: An aryldiamine compound represented by formula (1) and an organic electroluminescent device including a pair of electrodes and at least one organic layer disposed therebetween wherein the at least one organic layer contains the aryldiamine compound. The aryldiamine compound is excellent in hole transporting properties, hole injection properties, electron blocking properties, stability in thin film form, and heat resistance. The organic electroluminescent device achieves high emission efficiency and power efficiency, drives at a low voltage, and, in particular, has a long life.

Abstract: [Object] It is an object of the present invention to provide an organic EL device in which various materials for an organic EL device, which is excellent in hole injection/transport performance, electron injection/transport performance, electron blocking performance, stability in a thin film state, and durability, are combined so that properties of each of the materials can be effectively expressed, thereby achieving (1) high light emission efficiency and power efficiency, (2) a low light emission start voltage, (3) a low practical driving voltage, and particularly (4) a long lifetime.

Abstract: An organic electroluminescent device having high efficiency, low driving voltage and a long lifetime is provided by combining various materials for an organic electroluminescent device, which are excellent, as materials for an organic electroluminescent device having high efficiency and high durability, in hole and electron injection/transport performances, electron blocking ability, stability in a thin-film state and durability, so as to allow the respective materials to effectively reveal their characteristics. In the organic electroluminescent device having at least an anode, a hole transport layer, a light emitting layer, an electron transport layer and a cathode in this order, the hole transport layer includes an arylamine compound represented by the following general formula (1), and the light emitting layer comprises an amine derivative of the following general formula (2) having a condensed ring structure.

Abstract: In the organic electroluminescent device having at least an anode, a hole injection layer, a first hole injection layer, a second hole injection layer, a light emitting layer, an electron transport layer and a cathode in this order, the hole injection layer includes an arylamine compound of the following general formula (1) and an electron acceptor. In the formula, Ar1 to Ar4 may be the same or different, and represent a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, or a substituted or unsubstituted condensed polycyclic aromatic group.

Abstract: An organic electroluminescent device having high luminous efficiency, low driving voltage, and particularly a long lifetime is provided by combining various materials for an organic electroluminescent device, which have excellent hole and electron injection/transport performances, electron blocking ability, stability in a thin-film state, and durability as materials for an organic electroluminescent device having high luminous efficiency and high durability so as to allow the respective materials to effectively reveal their characteristics. In the organic electroluminescent device having at least an anode, a hole transport layer, a light emitting layer, an electron transport layer and a cathode in this order, the hole transport layer includes an arylamine compound represented by the following general formula (1), and the light emitting layer includes an amine derivative of the following general formula (2) having a condensed ring structure.

Abstract: According to the present invention, there are provided pyrimidine derivatives represented by the following general formula (1). The pyrimidine derivatives of the invention are novel compounds and feature (1) good electron injection property, (2) high electron mobility, (3) excellent hole blocking property, (4) good stability in their form of thin films, and (5) excellent heat resistance.

Abstract: The organic EL device of the present invention has an anode, a first hole transport layer, a second hole transport layer, a luminous layer, an electron transport layer, and a cathode in the order of description.

Abstract: To provide a light-emitting material containing a compound having a high excitation triplet level, particularly a host material of a light emitting layer, as a material for an organic electroluminescent device with high efficiency, and also to provide an organic electroluminescent device with high efficiency and high luminance by using the material. A light-emitting material containing a compound having a carbazole ring structure represented by the following general formula (1), and an organic electroluminescent device containing a pair of electrodes and one layer or plural layers including at least a light emitting layer intervening between the electrodes, the light emitting layer containing as a constitutional material thereof the light-emitting material.

Abstract: To provide an organic compound of excellent characteristics that exhibits excellent electron-injecting/transporting performance with hole blocking ability, and has high stability in the thin-film state, as material for an organic electroluminescent device having high efficiency and high durability, and to provide the organic electroluminescent device having high efficiency and high durability using the compound. An organic electroluminescent device includes a pair of electrodes, and one or more organic layers sandwiched between the pair of electrodes, wherein the compound of general formula (1) in which a substituted bipyridyl group and a pyridoindole ring structure are bonded via a phenylene group, is used as a constituent material of at least one organic layer.

Abstract: To provide an organic EL device having low driving voltage, high luminous efficiency, and particularly a long lifetime by combining various materials for an organic EL device having excellent hole and electron injection/transport performances, electron blocking ability, stability in a thin-film state, and durability as materials for an organic EL device having high luminous efficiency and high durability so as to allow the respective materials to effectively reveal their characteristics. In the organic EL device having at least an anode, a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, and a cathode, in this order, the hole injection layer includes an arylamine compound of the following general formula (1) and a radialene derivative of the following general formula (2).

Abstract: The present invention relates to a polyol for a crosslinkable polyurethane resin composition, containing a high molecular polyol represented by the following formula (1) or (2), in which the high molecular polyol is a condensate of a polyfunctional carboxylic acid (A) with a bifunctional polyether polyol (B), the high molecular polyol has a number average molecular weight (Mn) in a range of 1,000 to 10,000, and the polyol for a crosslinkable polyurethane resin composition has a content of the high molecular polyol of 0.1 wt % to 15 wt %.

Abstract: A high molecular weight compound according to the present invention includes a substituted triarylamine structural unit represented by a general formula (1) below, where Ar1 and Ar2 are a divalent aromatic hydrocarbon group or a divalent aromatic heterocyclic group, R1 and R2 represent a hydrogen atom, a heavy hydrogen atom, a fluorine atom, a chlorine atom, a cyano group, a nitro group, an alkyl group, a cycloalkyl group, an alkenyl group, an alkyloxy group, or a cycloalkyloxy group, X, Y and Z are, on the condition that at least one of them is an aryl group or a heteroaryl group, an aryl group, a heteroaryl group, or a group similar to the groups represented by R1 and R2 above.

Abstract: The organic EL device of the present invention has an anode, a hole transport layer, a luminous layer, an electron transport layer, and a cathode in the order of description. The hole transport layer includes an arylamine compound represented by the following general formula (1): in the formula, Ar1 to Ar4 each represent a monovalent aromatic hydrocarbon group or a monovalent aromatic heterocyclic group, and the luminous layer includes an N-aromatic substituted nitrogen-containing heterocyclic compound.

Abstract: In the organic electroluminescent device having at least an anode, a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer and a cathode in this order, the hole injection layer includes an arylamine compound of the following general formula (1) and an electron acceptor. In the formula, Ar1 to Ar4 may be the same or different, and represent a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, or a substituted or unsubstituted condensed polycyclic aromatic group.

Abstract: The purpose of the present invention is to provide a charge control agent for polymerized toners and particularly for color toners, which has a large charge amount and environmentally stable charging characteristics. Since a charge control agent including a pyrazolone derivative represented by a general formula (1) or a salt of the derivative as an active ingredient has a large charge amount and excellent environmental stability of charging, it has an excellent charge-imparting effect for use in polymerized toners and particularly in color toners: in the formula, R1, R2, and R3 each independently represent a substituted or unsubstituted C1 to C20 linear or branched alkyl group, a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, or a substituted or unsubstituted condensed polycyclic aromatic group.

Abstract: A high molecular weight compound according to the present invention includes a substituted triarylamine structural unit represented by the following general formula (1), where AR1, AR2, and L each independently represent a divalent aromatic hydrocarbon group or a divalent aromatic heterocyclic group, n is an integer of 1 to 3, Ar1 and Ar2 each independently represent an aryl group or a heteroaryl group, and R1, R2, and R3 each independently represent a hydrogen atom, a heavy hydrogen atom, a fluorine atom, a chlorine atom, a cyano group, a nitro group, an alkyl group having 1 to 6 carbon atoms, an alkyloxy group having 1 to 6 carbon atoms, a cycloalkyl group having 5 to 10 carbon atoms, a cycloalkyloxy group having 5 to 10 carbon atoms, an alkenyl group having 2 to 6 carbon atoms, an aryl group, an aryloxy group, or a heteroaryl group.

Abstract: The organic EL device of the invention has, in order, an anode, a hole transport layer, a luminous layer, an electron transport layer and a cathode. The hole transport layer includes an indenoacridan derivative represented by the following general formula (1), and the luminous layer includes an N-aromatic substituted indenoindole compound and/or an N-aromatic substituted carbazole compound. In the formula, A1 is a divalent aromatic hydrocarbon group, a divalent aromatic heterocyclic group or a single bond, B is a monovalent aromatic hydrocarbon group; a monovalent aromatic heterocyclic group; or a disubstituted amino group having, as a substituent, a monovalent aromatic hydrocarbon group or a monovalent aromatic heterocyclic group; and R1 to R14 each represent a hydrogen atom or an alkyl group.

Abstract: An organic electroluminescent device having low driving voltage, high luminous efficiency, and a long lifetime is provided by combining various materials for an organic electroluminescent device. In the organic electroluminescent device having at least an anode, a hole injection layer, a first hole transport layer, a second hole transport layer, a light emitting layer, an electron transport layer, and a cathode in this order, the hole injection layer includes an arylamine compound of the following general formula (1) and an electron acceptor. In the formula, Ar1 to Ar4 may be the same or different, and represent a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, or a substituted or unsubstituted condensed polycyclic aromatic group.

Abstract: The present invention provides an organic EL device having at least an anode, a hole injection layer, a first hole transport layer, a second hole transport layer, a luminous layer, an electron transport layer, and a cathode in order of description. The second hole transport layer includes an arylamine compound having a specific structure, and the electron transport layer includes a pyrimidine derivative having a specific structure. The organic EL device of the present invention has a high efficiency, a low driving voltage, and a longer life.