92 results about "Organozinc compound" patented technology

The invention relates to a method of growing a ZnS:Mn phosphor layer suitable for use in thin-film electroluminescent components. According to the method, the ZnS:Mn phosphor layer is grown on a substrate by means of the ALE method using volatile zinc, sulfur and manganese compounds as the precursors. According to the invention, an organozinc compound such as diethylzinc or dimethylzinc is used as precursor for zinc, hydrogen sulfide or an organosulfur compound is used as precursor for sulfur, and an organomanganese compound or organic manganese complex compound is used as precursor for manganese. The invention provides a display component with drive-voltage-symmetrical light emission and stable characteristics of luminance level and turn-on voltage.

A liquid dishwashing detergent composition having improved glassware protection when employed in conjunction with cleaning materials having high concentrations of alkaline materials. The composition contains a soluble organic zinc compound which preferably is zinc gluconate and is particularly suited to fast cycle commercial (I&I) dishwashers.

[Problem] Provided are a nonadhesive polyurethane composition, which does not adhere to a molding apparatus and the like, is superior in melt-moldability and adhesion to silicone, and useful as a molded object, a composite molded object or an ink binder, and a molded object, a composite molded object, an ink binder and an ink composition, which are made therefrom.

[Solving Means] A polyurethane composition containing polyurethane (A) containing, in a molecule, a structural unit (I) represented by the following formula (I);

wherein R¹ and R² are each a hydrogen atom or a C1-6 alkyl group, in a proportion of 0.1-20 mass %, and metal compound (B) selected from an organic Zn compound, an organic Bi compound, an organic Ti compound and an organic Zr compound in a proportion of 0.1-2,000 ppm, a molded object comprised of the polyurethane composition, a composite molded object having a polyurethane composition layer and a silicone layer, an ink binder containing the polyurethane composition and an ink composition containing the polyurethane composition.

An α-olefin polymer having extremely high stereoregularity, exhibiting excellent fluidity and containing a decreased amount of catalyst residues in the polymer can be obtained industrially advantageously in accordance with a process for producing an α-olefin polymer which comprises homopolymerizing an α-olefin or copolymerizing two or more α-olefins in the presence of (A) a solid catalyst component comprising magnesium, titanium and a halogen, (B) an organoaluminum compound having a content of hydroaluminum compounds of 0.1% by weight or smaller and (C) an organozinc compound.

A block copolymer of propylene comprising a homopolymer portion exhibiting high fluidity and a copolymer portion having a high molecular weight can be obtained in accordance with a process for producing a block copolymer of propylene which comprises polymerizing propylene in the presence of (A) a solid catalyst component comprising a titanium compound and an electron-donating agent, (B) an organoaluminum compound and (C) an organozinc compound to produce crystalline polypropylene and copolymerizing propylene and at least one of ethylene and α-olefins having 4 or more carbon atoms in the presence of the produced crystalline polypropylene.

A rolling device is provided which employs a lubricating grease composition which considerably diminishes irregular friction fluctuations occurring on rolling/sliding friction surfaces, shows stable low-torque characteristics in a wide temperature range, can retain a sufficient oil film even at high temperatures, has along life, and contains a novel thickener. Also provided is an electric power steering apparatus employing the rolling device.

The rolling device is characterized by employing a lubricating grease composition comprising: a thickener which is a mixed thickener comprising a mixture of (a) one or more diurea compounds which are one or more aliphatic diurea compounds having an average molecular weight of 500-750 in which 10-70% by mole of the linear hydrocarbon groups are unsaturated components, the aliphatic diurea compounds having been produced using as a raw material one or more primary amines having a total amine value in the range of 200-400, (b) at least one fatty acid metal salt, and (c) at least one amide compound selected from the group consisting of aliphatic amides and aliphatic bisamides represented by formulae (I) and (II):

R₁CONH₂  (I)

R₁CONHR₂NHCOR₁  (II)

• • (wherein R₁ represents a saturated or unsaturated alkyl group having 15-17 carbon atoms and R₂ represents a methylene group or an ethylene group), the proportions of (a) and of (b) and (c) satisfying the relationship:

a/(b+c)=0.2−10

provided that

(1) the proportion of ingredient (a) is 1-10,

(2) the proportion of ingredient (b) is 0.5-2.5, and

(3) the proportion of ingredient (c) is 0.5-2.5,

the amount of the thickener being 2-30% by weight, based on the whole composition;

(d) a base oil which is a lube base oil having a pour point of −25° C. or lower and comprising a synthetic hydrocarbon oil as the main component; and (e) an additive which is a mixture comprising an organomolybdenum complex, an organozinc compound of a dithiocarbamic acid, and an organozinc compound of dithiophosphoric acid, the amount of the additive being 1-7% by weight, based on the whole composition.

The invention provides a modified polyisocyanate composition and a preparation method thereof. The preparation method comprises the following steps: (1) enabling monohydric alcohol to react with polyisocyanate under a heating condition, carrying out heating while stirring; and (2) further adding the polyisocyanate, carrying out secondary reaction in the presence of a catalyst under the heating condition to generate a polyisocyanate composition, wherein the catalyst is selected from any one or two of an organic zinc compound, an organic tin compound, an organic alkali metal salt, tertiary amine and a salt compound thereof. The polyisocyanate composition with certain allophanate content is prepared from monohydric alcohol-modified polyisocyanate with a special functional group; polyurethane resin prepared from the polyisocyanate composition can show special functionality of the monohydric alcohol; meanwhile, the rebound resilience of the polyurethane resin is improved; and the modified polyisocyanate composition has the characteristics of high hydrophobicity and photocuring property.

The invention provides a ZnMgO ultraviolet detector, which comprises a ZnMgO thin film layer, wherein a crystal structure of the ZnMgO thin film layer is a cubic phase; the ZnMgO thin film layer is aprepared according to the following method of growing the ZnMgO thin film layer in metal organic compound chemical vapor deposition equipment into which oxygen is introduced by employing an organic zinc compound as a zinc source and an organic magnesium compound as a magnesium source. Compared with the prior art, the ZnMgO ultraviolet detector has the advantages that a ZnMgO thin film is preparedby using a metal organic compound chemical vapor deposition method, the airflow of the ZnMgO thin film is parallel to a substrate and the growth temperature is relatively low, so that the prepared ZnMgO thin film layer has the characteristics of being high in crystal quality, free of phase separation and steep in absorption cutoff edge, the ultraviolet detector comprising the ZnMgO thin film layerhas relatively good light effect capacity, a light response cutoff edge of a device can be adjusted without adjusting the light absorption cutoff edge of the ZnMgO thin film layer, the preparation process is simple and the reaction process is easy to control.

Disclosed is a composition for forming a zinc oxide thin film, which contains an organic zinc compound as a starting material, is not ignitable, and can be easily handled. The composition for forming a zinc oxide thin film is capable of forming a transparent zinc oxide thin film which is not doped or doped with a group 3B element by being heated at 300° C. or less. Also disclosed is a method for obtaining a transparent zinc oxide thin film, which is not doped or doped with a group 3B element, using the composition. Specifically, the composition for forming a zinc oxide thin film contains a product which is obtained by partially hydrolyzing an organic zinc compound by adding water to the organic zinc compound or a solution of the organic zinc compound and a group 3B element compound. In cases when a group 3B element compound is contained, the molar ratio of the group 3B element compound to the organic zinc compound is within the range of 0.005-0.3. The composition is applied to a substrate surface and then heated, thereby forming a zinc oxide thin film which is doped with the group 3B element.

To provide a lubricant for metallic material working and a method of press working a metallic material that makes it possible to improve the working accuracy of a press worked product and prolong the life of the die assembly beyond prior levels of life. [Solution] A lubricant for metallic material working comprises a mixture of a sulfur-based extreme pressure agent, an organic zinc compound, a calcium-based additive, and an ester compound, with lubricant base oil. The sulfur-based extreme pressure agent has a sulfur content of 5% by weight or higher based on the total weight of the lubricant. The organic zinc compound has a zinc content of 0.5% by weight or higher based on the total weight of the lubricant. The calcium-based additive has a calcium content of 0.5% by weight or higher based on the total weight of the lubricant. And the ester compound occupies a content of 1.0% by weight or higher based on the total weight of the lubricant. Additionally, the solution includes a method of press working a metallic material that employs such a lubricant.

Methods of controlling polymerization reactions using a synergistic amount of hydrogen and an organozinc compound are disclosed. The resulting polymers have lower molecular weights and higher melt flow indices.

The present invention provides a hub bearing, made of carbon steel for machine structural use, which has a long life even in a strict lubricating condition by improving the resistance to peeling starting from the surface. A grease for the hub bearing contains a base oil, a thickener, and an organozinc compound which is at least one compound selected from dithiozinc carbamate and dithiozinc phosphate. The base oil is a mineral oil or a mixed oil of a mineral oil and a synthetic hydrocarbon oil. The thickener is a urea compound shown by the following formula (1) and is contained at 1 to 40 mass % for the entire grease. The grease for the hub bearing is enclosed in the hub bearing. (In the formula (1), R 2 indicates an aromatic hydrocarbon group having 6 to 15 carbon atoms, and R 1 and R 3 indicate at least one hydrocarbon group selected from an alicyclic hydrocarbon group and an aromatic hydrocarbon group.

A novel PVC heat stabilizer is characterized by at least comprising the following raw materials in parts by weight: 10 to 30 parts of organic zinc compound, 2 to 10 parts of organic tin compound, 20 to 40 parts of phthalic acid ester, 10 to 30 parts of alkyl acid ester, 10 to 30 parts of phosphite, 5 to 20 parts of chloromethoxyl fatty acid methyl ester, 1 to 5 parts of phenol, and 2 to 8 parts of 2-ethyl hexanol, wherein the organic tin compound comprises 1 to 4 sulfur atoms.

The present invention provides a hub bearing, made of carbon steel for machine structural use, which has a long life even in a strict lubricating condition by improving the resistance to peeling starting from the surface. A grease for the hub bearing contains a base oil, a thickener, and an organozinc compound which is at least one compound selected from dithiozinc carbamate and dithiozinc phosphate. The base oil is a mineral oil or a mixed oil of a mineral oil and a synthetic hydrocarbon oil. The thickener is a urea compound shown by the following formula (1) and is contained at 1 to 40 mass % for the entire grease. The grease for the hub bearing is enclosed in the hub bearing.

(In the formula (1), R² indicates an aromatic hydrocarbon group having 6 to 15 carbon atoms, and R¹ and R³ indicate at least one hydrocarbon group selected from an alicyclic hydrocarbon group and an aromatic hydrocarbon group.)

The invention provides a preparation method of a ZnMgO thin film. The preparation method includes the step of taking an organic zinc compound as a zinc source and an organic magnesium compound as a magnesium source and enabling a ZnMgO thin film to grow on a substrate in a metal organic compound chemical vapor deposition apparatus to which oxygen is introduced. Compared with the prior art, the method has the advantages that a metal organic compound chemical vapor deposition method is adopted to prepare a ZnMgO thin film, and the growth temperature is low, so that the prepared ZnMgO thin film has the characteristics of high crystalline quality, no phase separation, steep absorption edge and the like. The preparation method of the invention has potential application prospects in preparationmethods of photoelectric devices. Moreover, the preparation process is simple and the reaction procedure is easy to control.

The invention provides a ZnGa2O4 ultraviolet detector. The ZnGa2O4 ultraviolet detector comprises a substrate, a ZnGa2O4 thin film and a metal interdigital electrode which are sequentially compounded,wherein the ZnGa2O4 thin film is obtained by taking an organic zinc compound as a zinc source, an organic gallium compound as a gallium source and high-purity oxygen as an oxygen source and depositing on the surface of a substrate by utilizing a metal-organic compound chemical vapor deposition method. According to the invention, the ZnGa2O4 thin film is prepared by using a metal-organic compoundchemical vapor deposition method, and the prepared ZnGa2O4 thin film layer is enabled to have the characteristics of high crystallization quality, no phase splitting, steep absorption cut-off edge andthe like by increasing oxygen flow, increasing oxygen partial pressure and reducing oxygen defects, so that the ultraviolet detector containing the ZnGa2O4 thin film layer has relatively low dark current and relatively high responsivity.

The invention discloses a PVC preparation process for wire plastic particles. The preparation process includes the following materials: by weight, 50-150 parts of PVC resin, 10-15 parts of a thermal stabilizer, 30-60 parts of epoxy resin, 30-60 parts of thermoplastic polyester, 5 parts of a foaming agent, 10 parts of a toughening agent, 2 parts of an antioxidant, 1 part of a lubricant and 10-30 parts of vinyl chloride resin. The thermal stabilizer includes, by weight, 10-30 parts of organic zinc compound, 2-10 parts of organic tin compound, 20-40 parts of phthalates, 10-30 parts of alkyl esters, 10-30 parts of phosphite ester, 5-20 parts of chloro-methoxy fat diethylene glycol dinitrate, 1-5 parts of phenol and 2-8 parts of 2-ethylhexanol. The toughening agent includes a mixture of methylmethacrylate-butadiene and styrenic terpolymer (MBS), and the antioxidant is 2,6-tertiary butyl-4 methylphenol. The wire plastic particles prepared by the process are obviously superior to common PVCplastic granules on the market, have good heat resistance and high temperature resistance, high insulation capacity, high aging resistance and good toughness, and are suitable for wider electric wireindustry.

The instant invention describes methods of treating KCNQ related diseases and disorders using organozinc compounds. In certain embodiments, pain is treated using Zinc Pyrithione.

[Object] To provide a lubricant for metallic material working and a method of press working a metallic material that makes it possible to improve the working accuracy of a press worked product and prolong the life of the die assembly beyond prior levels of life. [Solution] A lubricant for metallic material working comprises a mixture of a sulfur-based extreme pressure agent, an organic zinc compound, a calcium-based additive, and an ester compound, with lubricant base oil. The sulfur-based extreme pressure agent has a sulfur content of 5% by weight or higher based on the total weight of the lubricant. The organic zinc compound has a zinc content of 0.5% by weight or higher based on the total weight of the lubricant. The calcium-based additive has a calcium content of 0.5% by weight or higher based on the total weight of the lubricant. And the ester compound occupies a content of 1.0% by weight or higher based on the total weight of the lubricant. Additionally, the solution includes a method of press working a metallic material that employs such a lubricant.

A method for producing a block copolymer composition including a diblock copolymer and a triblock copolymer each containing a polyolefin-based block and a polystyrene-based block is disclosed herein. In some embodiments, the method includes reacting an organic zinc compound with one or more kinds of olefin-based monomers in the presence of a transition metal catalyst to form an intermediate having an olefin-based polymer block, reacting the intermediate styrene-based monomer in the presence of an alkyllithium compound to form a product having a styrene-based polymer block, and reacting the product with water, oxygen, or an organic acid to form a block copolymer wherein the number of moles of the alkyllithium compound used to form the product is larger than the number of moles of the organic zinc compound used to form the intermediate.

The present invention relates to an organic zinc compound comprising a styrene-based polymer or a polyolefin-polystyrene block copolymer at both ends. Also, the present invention relates to a method for preparing the organic zinc compound, the method preparing an intermediate by coordination-polymerizing an olefin monomer using a transition metal catalyst, and then performing anionic polymerization by inserting an alkyllithium compound, an amine ligand, and a styrene-based monomer into the intermediate. Accordingly, the present invention can provide a method for preparing a commercially useful styrene-based polymer or polyolefin-polystyrene block copolymer directly from an olefin monomer and a styrene monomer in a one-pot manner.