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380 results about "Chrysene" patented technology

Chrysene is a polycyclic aromatic hydrocarbon (PAH) with the molecular formula C₁₈H₁₂ that consists of four fused benzene rings. It is a natural constituent of coal tar, from which it was first isolated and characterized. It is also found in creosote at levels of 0.5-6 mg/kg.

Organic electroluminescence device and material for organic electroluminescence device

An organic electroluminescence device includes: a cathode; an anode; and a single-layered or multilayered organic thin-film layer provided between the cathode and the anode. In the organic electroluminescence device, the organic thin-film layer includes at least one emitting layer, and the at least one emitting layer includes at least one phosphorescent material and a host material represented by the following Formula (1).Ra—Ar1—Ar2—Rb   (1)In Formula (1):Ra and Rb each represent a substituted or non-substituted benzene ring or a substituted or non-substituted condensed aromatic hydrocarbon ring selected from a group consisting of a naphthalene ring, a chrysene ring, a fluoranthene ring, a triphenylene ring, a phenanthrene ring, a benzophenanthrene ring, a dibenzophenanthrene ring, a benzotriphenylene ring, a benzochrysene ring and a picene ring; andAr1 and Ar2 each represent a substituted or non-substituted benzene ring or a substituted or non-substituted condensed aromatic hydrocarbon ring selected from a group consisting of a naphthalene ring, a chrysene ring, a fluoranthene ring, a triphenylene ring, a benzophenanthrene ring, a dibenzophenanthrene ring, a benzotriphenylene ring, a benzochrysene ring and a picene ring.
Owner:IDEMITSU KOSAN CO LTD

Organic electroluminescence device and material for organic electroluminescence device

An organic electroluminescence device includes: a cathode; an anode; and a single-layered or multilayered organic thin-film layer provided between the cathode and the anode. In the organic electroluminescence device, the organic thin-film layer includes at least one emitting layer, and the at least one emitting layer contains: at least one phosphorescent material; and a host material represented by the following formula (1).Ra—Ar1—Ar2—Rb   (1)In the formula, Ar1, Ar2, Ra and Rb each represent a substituted or unsubstituted benzene ring or a substituted or unsubstituted condensed aromatic hydrocarbon group selected from a group consisting of a naphthalene ring, a chrysene ring, a fluoranthene ring, a triphenylene ring, a phenanthrene ring, a benzophenanthrene ring, a dibenzophenanthrene ring, a benzotriphenylene ring, a benzochrysene ring, a picene ring and a benzo[b]fluoranthene ring.
Owner:IDEMITSU KOSAN CO LTD

Organic electroluminescence device and material for organic electroluminescence device

An organic electroluminescence device includes: a cathode; an anode; and a single-layered or multilayered organic thin-film layer provided between the cathode and the anode. In the organic electroluminescence device, the organic thin-film layer includes at least one emitting layer, and the at least one emitting layer includes at least one phosphorescent material and a host material represented by the following Formula (1).Ra—Ar1—Ar2—Rb  (1)In Formula (1):Ra and Rb each represent a substituted or non-substituted benzene ring or a substituted or non-substituted condensed aromatic hydrocarbon ring selected from a group consisting of a naphthalene ring, a chrysene ring, a fluoranthene ring, a triphenylene ring, a phenanthrene ring, a benzophenanthrene ring, a dibenzophenanthrene ring, a benzotriphenylene ring, a benzochrysene ring and a picene ring; andAr1 and Ar2 each represent a substituted or non-substituted benzene ring or a substituted or non-substituted condensed aromatic hydrocarbon ring selected from a group consisting of a naphthalene ring, a chrysene ring, a fluoranthene ring, a triphenylene ring, a benzophenanthrene ring, a dibenzophenanthrene ring, a benzotriphenylene ring, a benzochrysene ring and a picene ring.
Owner:IDEMITSU KOSAN CO LTD

Novel fused polycyclic aromatic compound, process for producing the same, and use thereof

In one embodiment of the present invention, a novel fused polycyclic aromatic compound of the present invention is (a) a compound including a benzodichalcogenophenobenzodichalcogenophene (BXBX) skeleton further having an aromatic ring(s) located outside the BXBX skeleton, or (b) a compound including a BXBX skeleton in which a benzene ring is substituted with a heterocyclic ring. The compound can strengthen intermolecular interaction due to greater π electron orbits. This improves an electron field effect mobility of an organic semiconductor device that is manufactured by use of the compound as an organic semiconductor material. Further, since the number of fused rings included in the compound is small, the compound does not cause problems that generally occur in compounds having an extremely large number of fused rings, i.e., poor solubility in solvent and poor atmospheric stability due to high affinity to oxygen. As a result, the fused polycyclic aromatic compound of the present invention can be preferably used as an organic semiconductor material.
Owner:NIPPON KAYAKU CO LTD

Organic electroluminescent material and application thereof

The invention relates to a 1,2-benzo[a]anthracene derivative and an organic electroluminescent device containing the compound. The general structural formula of the compound is shown in a structural general formula (1), wherein A1 and A2 are independently selected from aromatic groups with 6 to 25 nuclear carbon atoms respectively, or selected from substituent groups represented by the general formulae (1) to (4). The material of the invention can be preferably used as a luminous body, and simultaneously can be used as a transmission material. The electroluminescent device manufactured by the material of the invention has the high performances of low drive voltage, high luminescent efficiency and the like.
Owner:TSINGHUA UNIV +2

Pyrrolobenzodiazepines compound

Compounds of the formula: (I) or solvate thereof, wherein: R<2> is an optionally substituted C5-20 aryl group; R<6> and R<9> are independently selected from H, R, OH, OR, SH, SR, NH2, NHR, NRR', nitro, Me3Sn and halo; where R and R' are independently selected from optionally substituted C1-12 alkyl, C3-20 heterocyclyl and C5-20 aryl groups; R<7> is selected from H, R, OH, OR, SH, SR, NH2, NHR, NHRR', nitro, Me3Sn and halo; R'' is a C3-12 alkylene group, which chain may be interrupted by one or more heteroatoms and / or aromatic rings; X is selected from O, S, or NH; z is 2 or 3; M is a monovalent pharmaceutically acceptable cation; R<2>', R<6>', R<7>', R<9>', X' and M' are selected from the same groups as R<2>, R<6>, R<7>, R<9>, X and M respectively, or M and M' may together represent a divalent pharmaceutically acceptable cation.
Owner:MEDIMMUNE LTD

Corrosion-inhibition drag reducer for alkyl porphyrin compound natural gas pipelines and preparation method of corrosion-inhibition drag reducer

The invention relates to a corrosion-inhibition drag reducer for alkyl porphyrin compound natural gas pipelines of and a preparation method of the corrosion-inhibition drag reducer. The preparation method comprises the steps as follows: firstly, benzaldehyde, 4-hydroxyl benzaldehyde and pyrrole are used as raw materials to be reacted so as to prepare the mixture of six kinds of porphyrin compounds (H); then, the mixture H of the porphyrin compounds is reacted with acrylic acid long-chain alkyl esters to prepare six kinds of alkyl orphyrin compounds, wherein each kind of the compounds is 15 to 20wt%; and the prepared compounds are dissolved in 30 to 50wt% of solvent prepared with p-dioxane so as to form the corrosion-inhibition type drag reducer for the alkyl porphyrin compound natural gas pipelines. The proportion is that the mole ratio of methanal to the 4-hydroxyl benzaldehyde is (0.8:1) to (1.2:1); the mole ratio of the benzaldehyde to the pyrrole is (0.8:2) to (1.2:2); and the mole ratio of the acrylic acid long-chain alkyl esters to the pyrrole synthetizing H is (1:1) to (2:1). The drag reducer provided by the invention has the advantages of good drag reduction and anticorrosion property.
Owner:PIPECHINA SOUTH CHINA CO

Preparation method for distillate aromatic extract (DAE)

The invention relates to a preparation method for DAEs, comprising the following steps that: raw oil and a diluting solvent are mixed, the mixed solution enters into an extraction tower and contacts with an extraction solvent in the extraction tower, and raffinate oil is separated from raffinate, wherein the raw oil is extract oil obtained by solvent refining and / or de-waxing oil of the extract oil, the diluting solvent contains a main solvent, the extraction solvent contains the main solvent and an anti-solvent, and the main solvent has greater dissolvability of aromatic hydrocarbons than of alkane. According to the invention, the preparation method has high extraction efficiency; the extraction solvent used has good selectivity; DAE prepared by the method has high yield; the content of benzo(a)pyrene and the total content of 8 PAHs, namely, benzo(a)anthracene, chrysene, benzo(b)fluoranthene, benzo(k)fluoranthene, benzo(j)fluoranthene, benzo(a)pyrene, benzo(e)pyrene and dibenzo(a,h)anthracene, are low, which is in accordance with the European Union 2005 / 69 / EC instruction; the content of polycyclicaromatics is less than 3%.
Owner:CHINA PETROLEUM & CHEM CORP +1

Method for removing polycyclic aromatic hydrocarbons in soil by using persulfate-calcium peroxide through compound oxidation

The invention discloses a method for removing polycyclic aromatic hydrocarbons in soil by using persulfate-calcium peroxide through compound oxidation, and belongs to the field of soil repairing. The method comprises the following steps: after sieving to-be-measured air-dried soil, mixing the soil with calcium peroxide evenly; then adding distilled water to obtain slurry; successively adding oxalate ions, ferrous ions and peroxydisulfate ions, and stirring uniformly to obtain slurry reaction liquid; then leaving the slurry reaction liquid standstill in a dark place so that the polycyclic aromatic hydrocarbons in the soil can be removed after reaction is finished. By the method, naphthalene, acenaphthylene, acenaphthene, phenanthrene, anthracene, fluoranthene, pyrene, benzo[a]anthracene, a component as shown in the specification, benzo[b] fluoranthene, benzo[a]pyrene, dibenzo[a,b]anthracene, benzo[ghi] perylene and indeno[1,2,3-cd] pyrene in a complicated environment of the soil can be removed effectively, the removal rate of the polycyclic aromatic hydrocarbons is high, neutral pH of the soil can be maintained, acidized soil is improved, and a catalyst and a chelating agent are adopted, so that the removal effect and the removal efficiency are enhanced.
Owner:NANJING AGRICULTURAL UNIVERSITY
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