39results about How to "No gelation" patented technology

Disclosed is a positive-electrode composition that improves output characteristics, is low-cost, is easy to handle when fabricating positive electrodes, and has improved yield. Said positive-electrode composition, which is used in positive electrodes, comprises: a positive-electrode active material comprising a lithium / transition-metal composite oxide represented by the general formula Li[1+x]NiyCozM[1-y-z-w]LwO2 (with 0<=x<=0.50, 0.30<=y<=1.0, 0<=z<=0.5, 0<=w<=0.1, 0.30<y+z+w<=1, M being manganese and / or aluminum, and L being at least one element selected from the group comprising zirconium, titanium, magnesium, and tungsten); and a particulate additive comprising acidic oxide particles.

Disclosed is a polyimide film prepared from an aromatic tetracarboxylic acid component consisting essentially of 3,3',4,4'-biphenyltetracarboxylic dianhydride and an aromatic diamine component consisting essentially of not less than 65 mol phenylenediamine % but less than 97 mol % of p-phenylenediamine and not less than 3 mol % but less than 35 mol % of 2,4-toluenediamine.

The invention discloses a preparation method of low-cost mullite fibers. The preparation method comprises the following steps: firstly, preparing an aluminum carboxylate solution; preparing a silicon additive; and mixing the aluminum carboxylate solution with the silicon additive, reacting to obtain precursor sol, and performing concentration aging, spinning, heat treatment and the like to obtain the mullite fiber. Harmful gases such as chlorine, nitrogen dioxide and sulfur dioxide are not generated in the production process; the raw materials are low in requirement and easy to store, commercially available raw materials can be directly used, and the technical problem that the commercially available aluminum hydroxide raw materials cannot be used for preparing spinnable mullite fibers is solved. The preparation process is simple, green and environment-friendly.

Provided are: a composite oxide which is to be used as a positive electrode active material and is capable of achieving high low-temperature output properties even when no water washing treatment is performed; a method for producing the same; and a positive electrode active material which suppresses the formation of soluble lithium and does not cause gelling problems when adjusting the paste. Theprovided nonaqueous electrolyte secondary battery positive electrode active material is a lithium metal composite oxide powder comprising secondary particles obtained by agglomerating primary particles including lithium, nickel, manganese and cobalt, or comprising both the primary particles and the secondary particles, the active material being characterized in that: the interior of the secondaryparticles is a primarily solid structure; the pH of the slurry is 11.5 or less; the soluble lithium content is 0.5 (mass%) or less; the specific surface area is 2.0-3.0 (m<2> / g); and the porosity is 20-50 (%).

An exhaust gas purifying catalyst compound whichis represented by a rational formula: (NH4)xMo2VxO3(3x+6) (wherein x is 2.8 to 3.2) and has a V / Mo atomic ratio of 3 / 2; and a method for preparing the catalyst compound, characterized as comprising reacting molybdenum oxide (MoO3) with ammonium metavanadate (NH4VO3) in the presence of water for a specific period of time. The catalyst is prepared without employed the activation by firing, which has been the obstacle to achieving high catalyst activity in the prior art, while realizing satisfactory complex formation of V and Mo, and thus is markedly enhanced in activity, especially at a low temperature, and also in durability.

The invention discloses a platinum complex catalyst as well as a preparation method and an application thereof, and relates to the field of platinum complex catalysts. The platinum complex catalyst comprises p-hydroxy benzaldehyde, citric acid, chloroplatinic acid hexahydrate and isopropyl alcohol, wherein a mole ratio of p-hydroxy benzaldehyde to citric acid to chloroplatinic acid hexahydrate is (1.2-1.3): (0.8-1): 1. The catalyst can be used for catalyzing hydrosilylation, particularly used for catalyzing hydrosilylation of allyl glycidyl ether and trimethoxy silane and used for synthesizing KH-560. On the basis of a Speier catalyst, a proper amount of p-hydroxy benzaldehyde and citric acid is added, compared with a conventional platinum complex catalyst, the platinum complex catalyst can maintain higher catalytic activity, shorten the induction period of the reaction, improve the catalytic efficiency of the reaction and increase the yield of KH-560 simultaneously when used for synthesizing KH-560, and in terms of trimethoxy silane, the yield is up to 91.2%.

The invention discloses a preparation method for synthesizing fluorescent polymer nanoparticles on the basis of polyethyleneimine. The preparation method is implemented in steps as follows: solutions are prepared from polyethyleneimine and ascorbic acid respectively, mixed and then subjected to an acylation reaction, and the fluorescent polymer nanoparticles are prepared through one-step synthesis. The provided preparation method of the fluorescent polymer nanoparticles is simple and easy to operate, and the fluorescent polymer nanoparticles have good water solubility, have high fluorescence in the range of 350-370 nm and excellent stability, contain a large quantity of active groups allowed to be modified, can be used for the field of microimaging, biological probes, recognition and the like and have excellent application prospect.

The invention discloses a production method of water-in-water colorful paint containing color sand. The production method comprises the following steps: (a), preparing a protection glue solution; (b), producing basic slurry; (c), matching the color of the basic slurry; (d), performing color point granulation; (e), producing coating gloss oil; (f), producing finished paint. Granite-shaped particle containing particles are formed on the surface of the paint produced by the method, imitated-marble granite paint can be prepared from the paint, formed patterns are simple, artistic and elegant, and the paint prepared by the method is level in surface and not easy to form ash deposition, can keep the overall appearance longer, and has stain resistance; the special coating gloss oil can keep the color on the surface of the paint to be permanent and fresh, and has weather resistance; the paint is high in water resistance and rot resistance, is neither absorbed by a wall surface nor damaged in rainy days, and can protect the overall shapes of buildings.

The invention provides a device that can stably spit out coating liquid that contains organic EL material on a base plate through a nozzle. The internal space (SP) of a nozzle body (41) that forms the nozzle (4a) has the function as a flow path that drives the organic EL material (10a) to flow. Filters (43) are arranged on the flow path and the internal position of the pores (45a) that are arranged at the front end of the nozzle. The filter fineness of the filters (43) is 10 micrometer, thus the device can be used for collecting foreign matters and gelatinous solutes, etc. to prevent the foreign matters and the gelatinous solutes from reaching the pores (45a), thereby being capable of reliably preventing the pores (45a) from being blocked up by the foreign matters, and so on.

Provided are: a composite oxide which is to be used as a positive electrode active material and is capable of achieving high low-temperature output properties even when no water washing treatment is performed; a method for producing the same; and a positive electrode active material which suppresses the formation of soluble lithium and does not cause gelling problems when adjusting the paste. Theprovided nonaqueous electrolyte secondary battery positive electrode active material is a lithium metal composite oxide powder comprising secondary particles obtained by agglomerating primary particles including lithium, nickel, manganese and cobalt, or comprising both the primary particles and the secondary particles, the active material being characterized in that: the interior of the secondaryparticles is a primarily porous structure; the pH of the slurry is 11.5 or less; the soluble lithium content is 0.5 (mass%) or less; the specific surface area is 3.0-4.0 (m<2> / g); and the porosity ismore than 50 and no more than 80 (%).

The invention provides a method for manufacturing a rubber composition for a tire, and the method comprises: a kneading step, wherein a closed kneading machine is used to knead a rubber material and a silane coupling agent together, the rubber material is obtained by mixture of 100 mass parts of raw material rubber for the tire and 5-150 mass parts of silicon dioxide; and a holding step, wherein at the lower part of the closed kneading machine, under high temperature, a rubber block obtained by kneading is kept for a predetermined time, therefore, heat required for reaction of silicon dioxide and the silane coupling agent is provided for the rubber block, wherein in the 100 mass parts of raw material rubber for the tire, 5-100 mass parts of styrene butadiene rubber with the molecular weight distribution Mw / Mn being below 2.3 and end modification, and / or 10-60 mass parts of tin modified polybutadiene rubber by lithium initiator polymerization, the in modified polybutadiene rubber is provided with 50-3000 ppm of tin atom content ratio, 5-50 mass% of ethylene combination amount, and less-than 2.0 of molecular weight distribution Mw / Mn.

A composition capable of radical polymerization and air are accommodated in a packaging bag prepared using a heat-sealable synthetic resin sheet. In a preferred form, the packaging bag has at least one layer that bars the passage of at least one of a solvent, a gas, visible light and ultraviolet light, such as a metal layer. For example, it is prepared from a sheet of 5-layer laminate structure consisting of, arranged from inside toward outside in sequence, synthetic resin sheet (1) / adhesive layer (2) / synthetic resin sheet (3) / metal layer (4) / synthetic resin sheet (5). The volume of air in the packaging bag is preferably in the range of 1 to 50% based on the volume of composition capable of radical polymerization, and the total thickness of sheets used in the packaging bag is preferably 50 to 300 mu m. The thickness of the metal layer is preferably 5 mu m or more. This packaging form is most suitable for a composition capable of radical polymerization, such as a resist ink, because not only can the aging stability of composition capable of radical polymerization during storage be ensured but also the safety during transportation can be ensured.