68results about How to "Good long-term durability" patented technology

An adjustable base for attaching a sighting device such as a telescopic sight to a rifle or other ballistic projectile launcher, comprising upper and lower rails pivotally attached at the muzzle ends thereof, is disclosed. Adjustments are provided for altering the angle between the sight and the weapon's boreline or similar axis in elevation in increments of minutes of arc or fractions thereof.

To provide a thermoplastic polyester resin composition which has a very good durability to alkaline solutions for a long period of time. That is, a thermoplastic polyester resin composition, wherein a thermoplastic polyester resin (A) is compounded with 1-25% by weight (in the total composition) of impact resistance rendering materials (B), 0.1-15% by weight (in the total composition) of a silicone compound and/or a fluorine compound (C), 1-50% by weight (in the total composition) of an inorganic filler (D), and 0.1-10% by weight of at least one polyfunctional compound (E) selected from the group consisting of an epoxy compound, an isocyanate compound and a carboxylic acid dianhydride. A molded article of the present invention has anti-stress properties even in a weld part thereof.

A polyester film containing a polyester resin having an intrinsic viscosity IV of from 0.73 to 0.9 dL/g in which the polyester film has a specific heat change at 85° C. to 135° C. (ΔCp) of from 0.06 to 0.1 J/g, has an excellent weather resistance, a good planar surface state and a low thermal shrinkage.

Provided is anon-magnetic toner including toner particles each containing at least a binder resin, a colorant, and a wax component, and an inorganic fine powder, in which: (1) when a temperature in a temperature range of 50 to 80° C. at which a loss tangent (tan δ) shows a maximum is represented by T1, a storage elastic modulus of the toner at the temperature T1 (G′(T1)) satisfies a relationship of 5.00×10⁷≦G′(T1)≦1.00×10⁹ (dN/m²); (2) a continuous temperature range with a width of 15° C. or more in which the loss tangent (tan δ) is 0.80 to 2.00 is present in the temperature range of 50 to 80° C.; and (3) the loss tangent (tan δ) is 1.00 or more in a temperature range of 120 to 160° C.

A composite material for LED's is provided. The composite material has a coating comprising scattering particles with an index of refraction greater than 1.6.

The present invention provides a biaxially oriented polyester film for a backsheet of photovoltaics which exhibits an excellent hydrolysis resistance and a low shrinkage rate. The present invention relates to a biaxially oriented polyester film for a backsheet of photovoltaics, comprising a polyester having an intrinsic viscosity of 0.65 to 0.90 dL/g as measured in a mixed solvent comprising phenol and tetrachloroethane at a mass ratio of 50/50 at 23° C., a carboxyl end group content of 0 to 26 equivalents/t, and a phosphorus element content of 0 to 170 ppm, which biaxially oriented polyester film has a shrinkage rate of not more than 0.8% as measured in a longitudinal direction thereof after subjected to heat treatment at 150° C. for 30 min.

Provided are a diaphragm, a diaphragm valve, and a method of manufacturing a diaphragm capable of increasing a flow rate (Cv value) of gas without degrading long-term durability even when a displacement amount is increased. A diaphragm (1) has an outer diameter Φ of 10 to 35 mm and includes a dome portion (1D) in a dome shape and a flange portion (1T) formed continuously at a peripheral edge of the dome portion (1D) via a boundary portion (1K), the boundary portion (1K) has a radius of curvature R of 0.6 mm or more on a convex side of the dome portion (1D), and the diaphragm is formed of a cobalt-based super-alloy.

The present invention relates to an acrylic pressure sensitive adhesive composition containing organic functional groups of urethane and pyridine, more precisely an acrylic pressure sensitive adhesive composition which has excellent removability owing to its low initial peel strength on glass and excellent long-term durability since the peel strength of the pressure sensitive adhesive composition onto glass is being increased under high temperature and high humidity. The present invention also relates to an acrylic pressure sensitive adhesive composition for a polarizer having excellent adhesive functions and durability, a polarizer and a LCD containing the same.

A separator is made by using a copolymer for the separator including a monomer component derived from an olefin compound containing a fluorine atom and a monomer component derived from a polymerizable organic compound containing an oxygen atom in its molecule. This separator is excellent in resistance to oxidation and wettability to electrolytes. Therefore, by making a non-aqueous electrolyte battery using this separator, charge and discharge cycle life and storage characteristics of the battery improve. Further, similar effects can be obtained by using this separator, even in the case of a non-aqueous electrolyte battery using a high-potential positive electrode active material.

A curable composition comprising 100 parts by weight of saturated hydrocarbon polymer having at least one silicon-containing group which has at least one hydroxyl or hydrolyzable group bonded to a silicon atom and is crosslinkable through the formation of a siloxane bond, 1-100 parts by weight of a compound which has at least one epoxy group at its end, and 1-100 parts by weight of mica. If necessary, paraffin hydrocarbon oil is mixed into said curable composition. Further, usual additives for a sealing material such as an anti-aging agent and a filler may be mixed into the curable composition.

A toothed or splined shaft having an external toothing is pushed with clearance into an internal toothing of a hub, tooth to space, and the external toothing of the shaft is pressed together with the internal toothing of the hub. In the push-in position of the shaft, the latter is deformed plastically out of a cavity of the shaft in a radial circumferential widening operation and, so as to provide freedom from clearance between the spaces of the external toothing of the shaft and the internal toothing of the hub, the internal toothing engaging into the external toothing is pressed against the hub in such a way that the hub is deformed elastically and a press fit between the shaft and the hub is produced.

A submerged hollow fiber membrane module includes a cylindrical housing having openings at the upper and lower ends, in which at least a part of an upper half of an external exposed part of a peripheral wall is composed of a porous component and a lower half of the external exposed part of the peripheral wall is not opened, hollow fiber membrane bundles placed vertically in the cylindrical housing, a hollow fiber membrane bundle binding component fixes the hollow fiber membranes in a state where the hollow part of each hollow fiber membrane is opened and is adhesively fixed to the cylindrical housing, a water collecting cap connected to the hollow fiber membrane bundle binding component, a hollow fiber membrane sealing component seals the hollow part of each hollow fiber membrane, an air collecting cylinder, and a bonding part in the cylindrical housing is composed of a porous component.

The invention aims to provide a novel high-temperature-resistant and anti-corrosion ceramic coating which can resist strong-acid corrosion at the high temperature, has good wear-resisting property and heat conductivity, low spraying cost and long service life and can be firmly attached to walls of related equipment, and a preparation technology. The novel high-temperature-resistant and anti-corrosion ceramic coating comprises, in parts by weight, 45-50 parts of nano ceramic powder, 10-15 parts of powdery quartz, 10-15 parts of polyurethane resin, 5-8 parts of dodecylene alcohol ester, 3-4.5 parts of powdery calcium carbonate, 3-5 parts of cobalt powder, 2-3 parts of powdery purple clay, 1-2 parts of powdery silicon dioxide, 0.5-1 part of paraffin, 5-8 parts of ethyl acetate, 5-8 parts of n-butyl alcohol and 1-5 parts of powdery vermiculite.

Disclosed is an air conditioner coated by the coating composition to the resin-made components where due formation occurs upon the cooling operation, provides the antifouling performance against various stains, restrains enlargement of droplet, and provides an excellent long-term durability (sticking property and peeling off property) all at the same time. The air conditioner of the present embodiment forms a coating film 103 to surfaces of resin-made components and resin-made components installed to a rear flow side of the heat exchanger, includes the silica ultrafine particles 101 and the fluororesin particles 102, and provides, within the coating film 103, a silica film 104 comprising the silica ultrafine particles and the fluororesin particles 102 partially exposed from a surface of the silica film 104 in dots, and an exposed area of the silica film 104 is greater than an exposed area of the fluororesin particles 102.

The invention discloses a phosphorus-doped tungsten sulfide@tungsten oxide porous core-shell nanowire flexible array electrode and a preparation method thereof, and belongs to the field of preparationmethods of electrocatalytic electrode materials. The method comprises the steps that after a carbon cloth with a tungsten oxide inoculation layer is prepared, sodium tungstate and acetic acid are dissolved in deionized water, concentrated nitric acid is added to a solution obtained after complete dissolution, and stirring continues until the solution is clarified; then ammonium sulfate is added,a tungsten oxide nanowire hydrothermal reaction solution is obtained after uniform stirring and placed in a high-pressure reaction kettle for a hydrothermal reaction, sodium hypophosphite and sulfur powder are uniformly mixed and then placed in the upstream portion of a double-temperature-zone tubular furnace, and a prepared tungsten oxide nanowire array is placed in the downstream portion of thedouble-temperature-zone tubular furnace; under the protection of argon gas, the upstream temperature of the tubular furnace is controlled to be 280-300 DEG C, the downstream temperature of the tubularfurnace is controlled to be 750-850 DEG C, and the phosphorus-doped tungsten sulfide@tungsten oxide porous core-shell nanowire flexible array electrode is obtained after a constant-temperature reaction is conducted for a certain period of time. The electrode has excellent electrochemical performance.

The invention provides a fiber reinforce plastic (FRP) pipe and concrete special-shaped column with a built-in steel pipe and high-strength concrete core column, which belongs to the technical field of civil engineering. A manufacturing method of the special-shaped column comprises the following steps: (1) welding stiffening ribs inside a steel pipe, and pouring high-strength concrete inside the steel pipe, thus forming the steel pipe and high-strength concrete core column; (2) binding longitudinal bars and reinforcement stirrups outside the steel pipe and high-strength concrete core column; (3) setting transverse and inclined FRP connecting pieces at the corners of the inner section of a special-shaped FRP pipe; and (4) pouring concrete inside the steel pipe and high-strength concrete core column and the special-shaped FRP pipe, thus manufacturing the FRP pipe and concrete special-shaped column with the built-in steel pipe and high-strength concrete core column. The combined column has the advantages of high bearing capacity, high ductility and durability, light deadweight, high rigidity, convenience in construction and the like, and a novel column structure system can be provided for building structures.