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442 results about "Naphthylamine" patented technology

Nitrogen substituted aromatic hydrocarbon existing as two different isomers, both carcinogenic and used in dyes.

Meteorologic balloon and production method thereof

ActiveCN101592742AThere will be no problem of uneven distributionAgainst destructive powerInstrumentsPotassium hydroxideDioctyl sebacate
The invention discloses a meteorologic balloon and a production method thereof. The raw materials consist of a solid raw material, an oily raw material and a gluey raw material; the solid raw material comprises the following components by weight: 0 to 0.30 portion of potassium hydroxide, 0 to 0.15 portion of casein, 0 to 0.10 portion of peregal O, 1.00 to 3 portions of sulfur, 1.00 to 2 portions of N-phenyl-2-naphthylamine, 1.00 to 2 portions of N-phenyl-N'-isopropyl-ursol, 1.50 to 3 portions of ethyl-phenyl-zinc dithiocarbamate, 0.20 to 5 portions of zinc oxide, and 5 to 30 portions of chloroprene polymer; the oily raw material is dioctyl sebacate, and the weight rate of the dioctyl sebacate is 5.00 to 10.0 portions; and the gluey raw material is centrifugally-concentrated natural latex, and the adding amount of the centrifugal concentrated natural latex is 100 portions. The weight of the meteorologic balloon is 1,600 to 1,700 grams, the length of the balloon body is 3.05 to 3.55 meters, the width of the ball handle is 10 to 11 centimeters, and the length of the ball handle is 12 to 16 centimeters. The meteorologic balloon can adapt to the requirement of probing high-altitude meteorological elements of more than 35,000 meters, has the advantages of good aging resistance, high blastoff height, long balloon service time and the like, and can effectively overcome the morning-evening difference.
Owner:CHEMCHINA ZHUZHOU RUBBER RES & DESIGN INST

Method for detecting 10 types of aromatic amines compounds in cigarette mainstream smoke by liquid chromatography-tandem mass spectrometry

ActiveCN102608232ASimplified processing stepsSaving volume and smoking experiment timeComponent separationToluidineAniline
A method for detecting 10 types of aromatic amines compounds (including aniline, ortho toluidine, m-toluidine, p-aminotoluene, m-phenylenediamine, m-methoxyaniline, 1- naphthylamine, 2- naphthylamine, 3- aminobphenyl and 4- aminobphenyl) in cigarette mainstream smoke by liquid chromatography-tandem mass spectrometry is characterized in that a Cambridge filter and an absorbing bottle containing 5%of HC1 solution respectively gather the aromatic amines compounds in a particle phase matter and a gas phase matter of mainstream smoke, after the 5%HCI solution is used for extracting the aromatic amines compounds on the filter, the aromatic amines compounds are purified by an HLB (hydrophile-lipophile balance) solid-phase extraction column, and a liquid chromatography-tandem mass spectrometry instrument is used for determining the 10 types of aromatic amines in the mainstream smoke in cigarettes. Compared with an existing GC-MS (gas chromatography-mass spectrometer) analysis method for detecting aromatic amines in mainstream smoke of cigarettes, the method does not need derivatization reaction or liquid-liquid extraction operation, greatly simplifies pretreatment steps of samples, improves analysis efficiency, and can more comprehensively detect harmful aromatic amines compounds in mainstream smoke of cigarettes.
Owner:ZHENGZHOU TOBACCO RES INST OF CNTC

Algaecide for effectively removing algae and precipitating alga bodies

The invention relates to an algaecide. The algaecide which can be used for effectively removing algae and precipitating alga bodies contains chitosan, fly ash autoclaved brick powder and allelopathic chemicals of gallic acid, nonoic acid or N-phenyl-naphthylamine, and is obtained by dissolving a certain amount of chitosan by using hydrochloric acid, then adding the fly ash autoclaved brick powder of 40-200 meshes, and then adding the dimethyl sulfoxide assisted dissolved allelopathic chemicals of gallic acid, nonoic acid, N-phenyl-1-naphthylamine or N-phenyl-2-naphthylamine. The chitosan and the fly ash autoclaved brick powder used in the algaecide provided by the invention are nontoxic, the allelopathic chemicals of gallic acid, nonoic acid and the like belong to plant secondary metabolism products, can be degraded easily in a water body and cannot cause secondary pollution, and although the diluted HCl solution is used for dissolving chitosan, great changes of the pH value of the water body are not caused in a dosage range. The algaecide provided by the invention can be used for removing the algae effectively and ensuring that the alga bodies are sunk to the bottom of water, has a small influence on the environment and does not cause secondary pollution, the water body is clear, and the beautiful outlook of the water body is not influenced, so that the algaecide is suitable for removing the algae from a small landscape water body taking blue algae as a dominant species.
Owner:永城开控水务有限公司

Method for preparing benzo-phenoselenazine photosensitizer

The invention relates to a method for synthesizing 5-(alkylamide-)-9-(N, N-dialkylamide) benzo-phenoselenazine hydrochloride shown in a formula I by using nanometer copper oxide as a catalyst. A benzo-phenoselenazine derivant, namely the 5-(alkylamide-)-9-(N, N-dialkylamide) benzo-phenoselenazine hydrochloride is an excellent photosensitizer for a photodynamic therapy, has the absorption wavelength above 650 nanometers, good water solubility, larger absorption intensity, high tumor cell selectivity and short metabolic time and is easy for synthesis and structure modification, thereby being an ideal novel photosensitizer. The method comprises the following steps of: with 3-iodo-N,N-dialkylaniline and selenium powder as raw materials, preparing di-(3-N,N-dialkylaniline) diselenide shown in a formula II under the catalysis of copper oxide, carrying out a nitrosation reaction on the bi-(3-N,N-dialkylaniline) diselenide and sodium nitrite to generate a bi-(3-N, N-dialkylamide-6-nitrosobenzene) diselenide, and finally carrying out a cyclization reaction on the bi-(3-N,N-dialkylamide-6-nitrosobenzene) diselenide and N-alkyl-1-naphthylamine to prepare the benzo-phenoselenazine derivant shown in the formula I. The method for synthesizing the benzo-phenoselenazine derivant is mild in reaction conditions, simple to operate and high in yield; and the raw materials are available.
Owner:CENT SOUTH UNIV

Chloroprene rubber composition

The invention relates to a chloroprene rubber composition. The chloroprene rubber composition comprises the following components of chloroprene rubber, butadiene styrene rubber, sulfur, zinc oxide, an anti-aging agent RD, hard china clay, semi-reinforcing furnace black, high-activity carbon black, an accelerant CZ, an accelerant TS, an accelerant TRA, dibutyl sebacate, diaryl para phenylene diamine, gamma-sulfydryl propyl trimethoxy silane, phenyl-beta and a mixture of naphthylamine and diphenyl para phenylene diamine. The butadiene styrene rubber and the chloroprene rubber are used in a combination way, and the coaction of auxiliary agents such as the diaryl para phenylene diamine, the dibutyl sebacate and the like is realized, so that the low-temperature cold resistance of the chloroprene rubber is further improved, the brittleness temperature of the chloroprene rubber can reach -56 DEG C without rubber fracture, and the chloroprene rubber has high oil resistance and other properties without obvious changes. The using value of the chloroprene rubber is improved while the cold resistance of the chloroprene rubber is improved, so that the chloroprene rubber composition has great significance of better exerting effects of a chloroprene rubber material and a chloroprene rubber material product in fields of automobiles, petrochemical industry and the like, the safety control of the product is improved, and the service life of the product is prolonged.
Owner:TIANJIN PENGYI GRP CO LTD

Room temperature phosphorescent material based on phenyl-2-naphthylamine or phenyl-2-naphthylamine and 4,4-dibromodiphenyl composite crystal, and preparation method and application thereof

The invention relates to room temperature phosphorescent material based on phenyl-2-naphthylamine or phenyl-2-naphthylamine and 4,4-dibromodiphenyl composite crystal, preparation method of the material, and application of the material in the organic white light material field, safety anti-counterfeiting identification field and other fields, and belongs to the technical field of organic room temperature phosphorescent materials. 2-Naphthylamine is connected with benzene rings or naphthalene rings having different substitutions, this type of molecules is as good as naphthylamine in emitting deep blue light and can also efficiently emit yellow-green phosphorescent light at low temperature. 4,4-Dibromodiphenyl provides, on one hand, heavy atoms for a body so that interstitial crossing rate of objective molecules from single linear state to triple linear state is increased, and avoids, on the other hand, the quenching of the objective molecules due to accumulation, thereby ensuring efficient luminescent efficiency. A white light luminescent material can be prepared by using fluorescent-phosphorescent double emission of the system, and long-life phosphorescent emission is potentially significant to bio-labeling and anti-counterfeiting identification fields.
Owner:JILIN UNIV
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