A method for reducing the mutagenicity of polycyclic aromatic compounds (PAC's) having one or more bay regions which involves alkylating the PAC's with an alkylating agent in the presence of a catalyst to lower the mutagenicity down to as much as about 0.1. The resulting alkylated polycyclic aromatic compounds retain their physical and chemical properties for safe industrial use including as rubber processing oils, inks, etc.

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.

##STR00001##

The present invention relates to a formula, comprising at least one solvent, and at least one functional composition of the general formula (I), wherein A is a functional structural element, B is a solvent-providing structural element, and k is an integer in the range of 1 to 20. The molecular weight of the functional composition is at least 550 g/mol, and the solvent-providing structural element B corresponds to the general formula ((L-I). Ar1, Ar2 JeWeUs, independently of each other, signify an aryl or heteroaryl group, which can be substituted with one or several discretionary residues R. Each X is, independently of one another, N or CR2, preferably CH. R1, R2, independently of one another, is hydrogen, a linear alkyl, alkoxy, or thioalkoxy group with 1 to 40 C atoms, or a branched or cyclic alkyl, alkoxy, or thioalkoxy group with 3 to 40 C atoms, or a silyl group, or a substituted keto group with 1 to 40 C atoms, an alkoxycarbonyl group with 2 to 40 C atoms, an aryloxycarbonyl group with 7 to 40 C atoms, a cyano group (CN), a carbamoyl group (C(O)NH2), a haloformyl group (C(O)X, wherein X signifies a halogen atom), a formyl group (C(O)H), an isocyano group, an isocyanate group, a thiocyanate group or a thioisocyanate group, a hydroxy group, a nitro group, a CF3 group, C1, Br, F, a cross-linkable group, or a substituted or non-substituted aromatic or heteroaromatic ring system with 5 to 60 ring atoms, or an aryloxy or heteroaryloxy group with 5 to 60 ring atoms, or a combination of these systems, wherein one or several of groups R1 and/or R2 can form a monocyclic or polycyclic, aliphatic or aromatic ring system with one another and/or with the ring to which group R1 is bound, and I is 0, 1, 2, 3 or 4, wherein the dashed linkage indicates the linkage to the functional structure element A. The present invention further relates to preferred compositions of the formula (I) and electronic devices containing said compositions.

Provided are a fluorinated compound for patterning a metal or an electrode (cathode), an organic electronic element using the same, and an electronic device thereof, wherein a fine pattern of the electrode is formed by using the fluorinated compound as a material for patterning a metal or an electrode (cathode), without using a shadow mask, and it is possible to more easily apply UDC since it is easy to manufacture a transparent display having high light transmittance.

The present specification relates to an organic light emitting device.

The present invention provides a thermally conductive material having excellent thermal conductivity. Furthermore, the present invention provides a device with a thermally conductive layer that has a thermally conductive layer containing the thermally conductive material and a composition for forming a thermally conductive material that is used for forming the thermally conductive material. The thermally conductive material according to an embodiment of the present invention contains a cured substance of a disk-like compound, which has one or more reactive functional groups selected from the group consisting of a hydroxyl group, a carboxylic acid group, a carboxylic acid anhydride group, an amino group, a cyanate ester group, and a thiol group, and a crosslinking compound which has a group reacting with the reactive functional groups.

Provided are a compound of Formula 1 and an organic electric element including a first electrode, a second electrode, and an organic material layer between the first electrode and the second electrode and comprising the compound, the element showing improved luminous efficiency, stability, and life span.

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. The second hole transport layer includes an arylamine derivative represented by the following general formula (1): ##STR00001##
and the electron transport layer includes a pyrimidine compound represented by the following general formula (2): ##STR00002##

A compound represented by formula (1) provides a high performance organic electroluminescence device and a novel material for realizing such an organic electroluminescence device: ##STR00001##
wherein R.sup.1 to R.sup.6, a to f, L.sup.1 to L.sup.3, and Ar are as defined in the description.

A novel compound is provided. Alight-emitting device having high emission efficiency and a long lifetime is also provided. An organic compound is represented by General Formula (G2), in which a benzo[a]anthracene skeleton is bonded to the 2-position of an anthracene skeleton. In General Formula (G2), R1 to R3, R5 to R12, and R21 to R29 each independently represent any one of hydrogen, an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms, and a substituted or unsubstituted aryl group having 6 to 13 carbon atoms in a ring. Another embodiment of the present invention is a light-emitting device including the compound. ##STR00001##