5854 results about "Naphthalene" patented technology

The invention relates to an N-substituted dioxazine compound as well as a preparation method and application thereof. The N-substituted dioxazine compound has the following chemical structure general formula (I), wherein Ar in the chemical structure general formula (I) is a benzene ring, a naphthalene ring, and a pyridine or pyrimidine ring system. The compound is prepared with the following two steps: (1) taking 2-(benzyl)-7-benzindene[1,2-e][1,3-4] dioxazine-2,4a(3H,5H)-dicarboxylic acid-4a-methoxycarbonyl group and hydrogen as raw materials, taking Pd/C in solvent a as catalyst a, and carrying out hydrogenation, thus obtaining an intermediate B after reaction is finished; (2) taking (carbonylchloride) (aryl) methyl carhamate as the intermediate C, and carrying out (carbonylchloride) (aryl) methyl carhamate with the intermediate B obtained in the step (1) in the presence of a catalyst b in the solvent b; and obtaining the product N-substituted dioxazine compound. Compared with the prior art, the insecticidalactivity on the armyworm by the N-substituted dioxazine compound is 80-100%.

The present invention relates to urotensin II receptor antagonists, pharmaceutical compositions containing them and their use.

The invention provides a method for preparing hydrogen and LNG from coke oven gas. The method comprises the following steps: electric decoking; boosting of the coke oven gas by a compression system; cooling of the raw gas coke oven gas by using the BOG gas (the BOG gas is a gas formed after the passive heating gasification of LNG) of LNG in order to further remove tar, benzene, naphthalene and like substances in the coke oven gas; and pretreatment using a TSA process to finely remove macromolecular impurities, such as tar, benzene, naphthalene and the like; wet and dry two-stage desulfurization for removing sulfides in the coke oven gas; two-stage low pressure shifting for a reaction of CO and water vapor to form CO2 and hydrogen; and pressurization using a compressor, an MDEA solution process for removing carbon dioxide, a membrane separation technology for separating hydrogen and methane, separation, concentration and purification of the hydrogen and methane, and dehydration, demercuration and liquefaction of the separated high-concentration methane to obtain the LNG. The coke oven gas is finally converted into the hydrogen and the LNG which have high values, so the energy of thecoke oven gas is fully used, and the environment is protected.

An acidic aqueous hydrogen peroxid solution is provided, with improved disinfectant activity. Concentrated solutions preferably contain up to about 8% and as-used concentrations contain about 0.5% peroxide. The solution also contains from 0.1 to 5.0% of at least one acid compound, e.g. phosphoric and/or a phosphonate with from 1 to 5 phosphonic acid groups, and from 0.02 to 5% of at least one anionic surfactant. The surfactant is selected from C8 to C16-alkyl aryl sulphonic acids, sulphonated C12 to C22 carboxylic acids, C8 to C22-alkyl diphenyl oxide sulphonic acids, naphthalene sulphonic acids, C8 to C22 alkyl sulphonic acids, and alkali metal and ammonium salts thereof, and alkali metal C8 to C18 alkyl sulphates, and mixtures thereof. Most preferably the solution has an emulsifier, e.g. a salt of an alkylated diphenyl oxide. The solution may also contain corrosion inhibitors and/or lower alcohols.

Disclosed are compounds of Formula 1,

wherein

• • R¹ is halogen, C₁-C₂ haloalkyl or C₁-C₂ haloalkoxy;
  • R² is H, halogen or cyano;
  • R³ is H, halogen or CF₃;
  • R⁴ is H, C₂-C₇ alkylcarbonyl or C₂-C₇ alkoxycarbonyl; and
  • R⁵ is C₁-C₆ alkyl or C₁-C₆ haloalkyl, each substituted with one substituent independently selected from hydroxy, C₁-C₆ alkoxy, C₁-C₆ alkylthio, C₁-C₆ alkylsulfinyl, C₁-C₆ alkylsulfonyl, C₂-C₇ alkylaminocarbonyl, C₃-C₉ dialkylaminocarbonyl, C₂-C₇ haloalkylaminocarbonyl and C₃-C₉ halodialkylaminocarbonyl.

Also disclosed are compositions containing the compounds of Formula 1 and methods for controlling an invertebrate pest comprising contacting the invertebrate pest or its environment with a biologically effective amount of a compound or a composition of the invention.

Disclosed is a method which uses coke-oven gas as the raw material to produce liquefied natural gas; the method includes that the coke-oven gas is pretreated firstly to enable the tar, naphthalene and benzene impurities contained in the coke-oven gas to be purified deeply; and the purified coke-oven gas is processed with methanation reaction after compression and desulfurization; the liquefied natural gas product which contains CH4 with the content of more than 85% through the cryogenic separation process; the residual non-condensable gas is prepared to obtain the hydrogen with the purity of 99% through the PSA separation technique; the residual desorbed gas can be used as manufactured gas. The method which uses the coke-oven gas as the raw material to produce liquefied natural gas has the advantages of making full use of the compositions, saving energy, water and the investment, simple process and realizing the trinity coordinated development of economy, environment and energy sources.

A method for synthesizing and producing natural gas by hydrogen of coal gas and its synthesizer are disclosed. The process is carried out by purifying tar, crude removing sulfur, ammonia, benzene and naphthalene, compressing to 0.5-5.0 MPa, removing sulfur impurities, supplementing carbon 5-20 wt%, and methanation reacting to obtain final product. It saves energy resources and has no environmental pollution.

New anionic surfactants and methods of preparation which are derived from aromatic or substituted aromatic molecules and alkenesulfonic acid. Wherein the aryl compound is alkylated and sulfonated in one-step with an alkene sulfonic acid prior to sulfonic acid neutralization. The methods allow the functional sulfonate group to be attached to the end of the alkyl chain rather than to the aromatic ring thus allowing for selective substituted groups, either branched, linear or alkoxylated or combinations thereof to be placed on the aryl compound prior to sulfonation and alkylation. The invention uses the alkene sulfonic acid produced from thin-film sulfonation of an alpha-olefin to alkylate benzene, mono-substituted aromatic, poly-substituted aromatic, alkylbenzene, alkoxylated benzene, polycyclic aromatic, mono-substituted polycyclic aromatic, poly-substituted polycyclic aromatic, naphthalene, alkylnaphthalene, phenol, alkylphenol, alkoxylated phenol, and alkoxylated alkylphenolalkyl substituted or polysubstituted cyclic or polycyclic compounds to produce the corresponding sulfonic acid having an additional alkyl group derived from the alpha-olefin used during the thin-film sulfonation which is either linear or branched.

A photochromic naphthopyran displays good color distribution when the naphthopyran has a central nucleus of the formula:

• • wherein F is a 5-member, 6-member, or 7-member heterocyclic ring group having only one heteroatom, the heteroatom selected from the group consisting of oxygen, sulfur, and nitrogen, the 2,3 or 3,2 positions of the heterocyclic ring fused to the g, h, or i side;
  • R₁ and R₂ are the atoms or groups providing photochromic properties to the naphthopyran.

An organic electroluminescence device of the present invention comprises a light emitting layer held between electrodes, the light emitting layer containing at least a host material and a dye or pigment. The light emitting layer further comprises an additive exhibiting an absorption edge of which energy level is higher than that of an absorption edge of the dye or pigment, but the difference of the energy levels being less than 120 kJ/mol, having no lone pair, and including at least two aromatic rings. The additive of the present invention is selected from a group consisting of phenyl-substituted anthracenes, naphthyl-substituted anthracenes, naphthyl-substituted naphthalenes, pyrenes, and a naphthacene derivatives.

A three-dimensional object is manufactured by selective sintering by means of electromagnetic radiation, wherein the powder comprises a polymer or copolymer having at least one of the following structural characteristics:

• • (i) at least one branching group in the backbone chain of the polymer or copolymer, provided that in case of the use of polyaryletherketones (PAEK) the branching group is an aromatic structural unit in the backbone chain of the polymer or copolymer;
  • (ii) modification of at least one end group of the backbone chain of the polymer or copolymer;
  • (iii) at least one bulky group within the backbone chain of the polymer of copolymer, provided that in case of the use of polyaryletherketones (PAEK) the bulky group is not selected from the group consisting of phenylene, biphenylene, naphthalene and CH₂— or isopropylidene-linked aromatics;
  • (iv) at least one aromatic group non-linearly linking the backbone chain.

A composition for forming an underlayer film for lithography for imparting excellent optical characteristics and etching resistance to an underlayer film for lithography, an underlayer film being formed of the composition and having a high refractive index (n) and a low extinction coefficient (k), being transparent, having high etching resistance, containing a significantly small amount of a sublimable component, and a method for forming a pattern using the underlayer film are provided. The composition for forming an underlayer film contains a naphthalene formaldehyde polymer having a specific unit obtained by reacting naphthalene and/or alkylnaphthalene with formaldehyde, and an organic solvent.

The present invention relates to pharmaceutical compositions, kits and methods comprising combinations of (−)-cis-6-phenyl-5-[4-(2-pyrrolidin-1-yl-ethoxy)-phenyl]-5,6,7,8-tetrahydro-naphthalene-2-ol or nontoxic pharmacologically acceptable acid addition salts thereof and estrogens. The present invention also relates to pharmaceutical compositions, kits and methods comprising combinations of (−)-cis-6-phenyl-5-[4-(2-pyrrolidin-1-yl-ethoxy)-phenyl]-5,6,7,8-tetrahydro-naphthalene-2-ol or nontoxic pharmacologically acceptable acid addition salts thereof, estrogens and progestins.

The invention discloses the method for producing natural gas with coking gas, comprising the following steps: purifying coking gas and removing benzene, naphthalene, hydrocarbon and sulphide, compressing, heat transferring, carrying out methanation reaction with catalyst, hydrogen in COG reacting with carbonic oxide and carbon dioxide to get methane; putting the mixture gas into pressure swing adsorbing device, and getting natural gas whose concentration is 90%. The natural gas has high caloric value, low impurity content.

The present invention relates to molded polyurethane/urea elastomers, and specifically to improved polyurethane/urea elastomers having high temperature stability to about 140–150° C. and low temperature flexibility at about −35–(−40)° C., for use in dynamic applications. These elastomers are particularly useful for application in belts, specifically in automotive timing or synchronous belts, V-belts, multi V-ribbed or micro-ribbed belts, flat belting and the like. The polyurethane/urea elastomers of the present invention are prepared by reacting polyisocyanate prepolymers with symmetric primary diamine chain extenders, mixtures of symmetric primary diamine chain extenders and secondary diamine chain extenders, or mixtures of symmetric primary diamine chain extenders and non-oxidative polyols, which are all chosen to eliminate the need for catalysts via standard molding processes, and to improve phase separation. The polyisocyanate prepolymers are reaction products of polyols which are nonoxidative at high temperatures, such as polycarbonate polyols, polyester polyols, or mixtures thereof, with organic polyisocyanates which are either compact, symmetric and aromatic, such as para-phenylene diisocyanate, 1,5-naphthalene diisocyanate, and 2,6-toluene diisocyanate, or are aliphatic and possess trans or trans,trans geometric structure, such as trans-1,4-cyclohexane diisocyanate and trans,trans-4,4′-dicyclohexylmethyl diisocyanate.

The present invention relates to the discovery of a novel endophytic fungus, Muscodor vitigenus, from the liana, Paullinia paullinioides. This fungus produces naphthalene under certain cultural conditions that has chromatographic and mass spectral properties that are identical to authentic naphthalene. In a preferred embodiment, the naphthalene in the gas phase of M. vitigenus is useful in the repellency of unwanted insect pests. The unique biological activity of the novel endophyte suggests a wide range of potential practical applications, particularly in the area of insect repellents, insecticides, antimicrobials, anthelmintics and vermicides.

The invention relates to a preparation method of a silicon/graphene laminar composite material for lithium ion battery cathode. The composite material adopts a laminar sandwich structure, silicon nano-particles are dispersed on each lamina of the grapheme, the laminas of the grapheme are separated from one another by the silicon nano-particles and the edges of the laminas are in lapped joint so as to constitute a laminar conductive network structure. The preparation method thereof comprises the steps of: formulating anhydrous silicon tetrachloride, surface active agent, sodium naphthalene and graphite oxide to tetrahydrofuran solution, adding the tetrahydrofuran solution into a reactor for reaction in vacuum at the temperature ranging from 380 to 400 DEG C, filtering the reactant to result in the product, and then washing, drying and heating the product to obtain the silicon/grapheme composite material. The preparation method of the invention has the advantages of simple preparation process and great easiness for industrial production; and the silicon/graphene laminar composite material prepared according to the method includes excellent conductivity, power performance, electrochemical activity and cycle stability, and is particularly suitable for manufacturing lithium ion battery cathode.

Described herein are compounds generally comprising an indeno[2′,3′:3,4]naptho[1,2-b]pyran structure. Such compounds may be useful for their photochromic properties, and be used in certain photochromic compositions. Such compositions may further comprise other photochromic compositions and/or materials. Additionally, such compounds and/or compositions may be suitable for preparing certain photochromic articles. Also described herein are methods for preparing certain photochromic compounds, compositions, and articles.

The present invention relates to urotensin II receptor antagonists, pharmaceutical compositions containing them and their use.

The invention relates to an organic semiconductor material containing naphthalene [1, 2-c: 5, 6-c] di [1, 2, 5] thiadiazole and application thereof, wherein the organic semiconductor material is prepared by reacting the halogenated derivatives with the monomer containing an aromatic group structure under the metal catalyst, wherein the halogenated derivatives are obtained by halogenating the naphthalene [1, 2-c: 5, 6-c] di [1, 2, 5] thiadiazole; the aromatic group is connected with a naphthalene [1, 2-c:5, 6-c] di [1, 2, 5] thiadiazole unit in a conjugate manner. The organic semiconductor material is characterized by containing 3, 7 substituted decorative[1, 2-c: 5, 6-c] di [1, 2, 5] thiadiazole chemical groups; as the naphthalene [1, 2-c:5, 6-c] di [1, 2, 5] thiadiazole has excellent electron-withdrawing ability and planarity, the organic semiconductor material can excellently adjust the photoelectric property, has excellent photoelectric performance, and is applied to the field of organic photoelectric components.