32results about How to "High elastic rate" patented technology

It is provided a polyester cord for reinforcement of rubber suitable to the use for tire cap ply where a high elastic modulus is available and heat-resisting adhesive property and strength retaining rate upon exposure to high temperature for long time in rubber are significantly improved and also to provide a method for producing the same. A method for production of polyester cord for reinforcement of rubber, characterized in that , in bestowing adhesive property to rubber on a polyester fiber material, four members of (A) a treating solution containing a carrier, (B) an aqueous solution of a blocked isocyanate, (C) a dispersion of an epoxy compound and (D) a mixed solution of resorcinol-formaldehyde-latex (RFL) are combined as a treating solution and said polyester fiber material is subjected to a treatment by means of a one-stage or two or more multi-stage treatment, wherein said polyester fiber material is treated with a first treating solution compounded at least with (A) a treating solution containing a carrier, then treated with a second treating solution where at least (D) a mixed solution of resorcinol-formaldehyde-latex (RFL) is compounded and, after treating with the second treating solution in the final stage, a thermal treatment under a normalizing tension adjusted to not less than 0.2 cN / dtex is carried out.

The present invention provides a cellulose fiber having high strength, high modulus of elasticity, and low shrinkage properties, and excellent performance in preventing fibrillation and adhesion to rubber. It is produced by dissolving 0.1% to 10% by weight of salt and polyvinyl alcohol in a liquid concentrated NMMO solution to produce an NMMO solution; mixing, swelling, and dissolving the NMMO solution and cellulose powder to produce a cellulose solution Extrude and spin the cellulose solution through a spinning nozzle with 500 to 2000 spinneret holes, and then solidify it through an air layer and a coagulation bath to obtain multifilaments; wash the obtained multifilaments with water, Drying, oiling and coiling.

A flat yarn of a high strength and a high modulus of elasticity, being excellent in solvent resistance, thermal stability and resistance to bending fatigue is provided. The flat yarn comprises polyoxymethylene copolymer containing o.5 to 10 moles of specified oxyalkylene units per 100 moles of oxymethylene units in the polymer chain principally comprising repeating oxymethylene units and having a melt index at 190 DEG C with load of 2160 g of 0.3 to 20 g / 10 min.

The invention provides a pneumatic tire which effectively reduces rolling resistance. A pneumatic tire including a carcass layer (4) mounted between a pair of bead portions (3, 3), at least two layers of a belt layer (7) disposed on an outer circumferential side of the carcass layer (4) corresponding to a tread portion (1), and a belt reinforcing layer (8) having a strip material including at least one fiber cord wrapped spirally in a tire circumferential direction on an outer circumferential side of the belt layers, wherein the belt reinforcing layer (8) has a center portion reinforcing layer (8a) for reinforcing a center portion of the belt layers (7) and edge portion reinforcing layers (8b) for reinforcing edge portions of the belt layers (7), the center portion reinforcing layer (8a) and the edge portion reinforcing layers (8b) are mutually separated, a width Wa of the center portion reinforcing layer (8a) is from 5% to 25% of a width of a belt layer (7) having a smallest width, and a width of the edge portion reinforcing layers (8b) is from 10% to 35% of the width of the belt layer (7) having the smallest width.

A powder agent of a polymer (A) containing 70% or more methyl methacrylate units, and a liquid agent of a monomer (B) containing at least 70% or more of the compound (b1) represented by formula (1) [wherein R represents a methyl group or a hydrogen atom and n is an integer between 2 and 4] are mixed and thickened in the presence of a polymerization initiator (C) to produce a resin composition for medical use, in particular a dental resin composition. Said resin composition is optimally supplied in the manufacture of denture bases, mouthpieces or bone cement. Molded products produced using such a resin composition have excellent mechanical properties including toughness. Furthermore, such a resin composition can be prepared with ease.

A multi-layer tube ( 1 ) which comprises a base tube ( 3 ) and a coating layer ( 2 ) laminated on the inner surface of the base tube ( 3 ). The base tube ( 3 ) is made of a fluororubber type thermoplastic elastomer composed of rubber phase and a crystalline phase and has a hardness of HDA 40 or more and HDA 70 or less as measured according to JIS K 7215. The coating layer ( 2 ) is made of a blend of the above fluororubber type thermoplastic elastomer with a (vinylidene fluoride)-(hexafluoropropylene)-(tetrafluoroethylene) tenary copolymer and has a hardness of HDA 70 or more and HDD 80 or less as measured according to JIS K 7215.

A method for manufacturing a polymer composite piezoelectric material having boron nitride nanotubes (BNNTs) dispersed therein, according to one embodiment of the present invention, may comprise: a solution preparation step for preparing a polymer solution; a dispersion step for dispersing BNNTs in the polymer solution; and an electrospinning step for, by using an electrospinning method, carryingout electrospinning on the polymer solution having the BNNTs dispersed therein, thereby producing a polymer composite piezoelectric material on a nanofiber.

This invention provides a rolling bearing comprising a dense ceramic layer formed by a method alternative to a thermal spraying method, and having excellent insulating properties and corrosion resistance and chemical resistance, for example, resistance to chemicals such as acids and alkalis. The rolling bearing comprises an inner ring (1), an outer ring (2), and a plurality of rolling elements (4) interposed between raceway faces of the inner and outer rings. A ceramic film (7) is provided on at least one peripheral face selected from the inner peripheral face of the inner ring (1) and the outer peripheral face of the outer ring (2). The ceramic film is a film formed by an aerosol deposition method utilizing, for example, alumina fine particles as a raw material for aerosol. The film may be formed, for example, by fixing an aerosol ejection nozzle and axially moving the outer ring or inner ring using a positioning XY table while being rotated by an object rotation motor.

A rubber composition for tire, comprising at least a rubber component and an inorganic filler, wherein the inorganic filler has an angle of repose of 40 degrees or more, a Mohs' hardness of 2.0 or less, a BET specific surface area (BETS) (m2 / g) of 10 m2 / g or more, and a ratio (DBP) / (BET5) of the amount (ml / 100 g) of dibutyl phthalate (DBP) absorbed to the BET specific surface area (BET5) (m2 / g) of 2.0 or more, and wherein the content of the inorganic filler is from 0.5 to 50 parts by mass based on 100 parts by mass of the rubber component.

To obtain a stator of a rotary electric machine wherein electromagnetic noise can be reduced and further electrical insulating properties can be secured.A stator winding is manufactured by inserting a U-shaped conductor segment into a slot from the first end face side of a stator core, and welding ends of the conductor segments to each other exposed to the second end face side of the stator core. Joints 6 between the ends of the conductor segments are disposed circumferentially and annularly in two rows on the second end face side of the stator core. Epoxy resin is applied so that the resin covers each joint 6 and the resin bridges two adjacent joints in the radial direction and forms a first insulating layer 8. Silicone resin is applied so that the resin covers the first insulating layer 8 and extends to the insulating coating 401 of the conductor segments 4, forming a second insulating layer 9.

The present invention provides a method for manufacturing a semiconductor device for improving a productivity of the semiconductor device, a method and a structure for mounting the semiconductor device. A protective layer (4) is coated with an acroid resin which is used as a light-sensitive resin for forming a bulging body (5), to form a resin layer. On the resin layer, a mask having an opening portion is located at a prescribed position, further part of the resin layer exposing from the opening portion is exposed by irradiating ultraviolet on the mask. By means of solidifying the resin through the ultraviolet, a cylinder-shaped bulging body (5b) having a plane top is formed. Then, the ultraviolet (11) is irradiated on the bulging body (5b) to heat the bulging body (5b), such that the acroid resin for forming the bulging body (5b) is melted. Due to a surface tension generated on the melted resin, the top of the planar bulging body (5b) is deformed into a smooth curved face. thereby a near-hemisphere-shaped bulging body (5) is formed from the bulging body (5b).

The invention discloses a high-fidelity loudspeaker cone and a production process thereof. The cone comprises components in parts by weight as follows: 30-45 parts of sisal pulp, 10-25 parts of flax pulp, 5-15 parts of fluff pulp and 0.5-2 parts of carbon fiber powder. The cone production process comprises following steps: S1), material preparation: the sisal pulp, flax pulp and fluff pulp are taken out in the weight ratio, lumps and impurities are removed, dust cleaning treatment is performed, and soaking is respectively performed for 30-50 min. According to the high-fidelity loudspeaker coneand the production process cone thereof, mixed pulp of the sisal pulp, flax pulp and fluff pulp is used as a main material of the cone to provide rigidity and toughness of the cone, so that the elasticity of the cone is improved; the carbon fiber, bulletproof fiber and glass fiber are used as compound ingredients to ensure the strength of the cone, so that the stability of the paper cone is improved; the edge of the cone is soaked with glue, solder alloy is used for attaching to avoid flaking, the elasticity and fatigue resistance of cone are improved, and the tone of a loudspeaker is better.

A method of manufacturing a polarizing plate in which an original polarizing plate is cut accurately, cracks are not extended easily in a section and foreign substances are not attached easily on a polarizing plate to be obtained, and a cutting mat to be used in the method are provided. An original polarizing plate having a plurality of layers is fixed on a first principal surface of an ultrahigh molecular weight polyethylene porous sheet by drawing from the opposite side. The original polarizing plate is cut by a blade moving across the thickness of the original polarizing plate by using the porous sheet as a cutting mat to obtain a polarizing plate having a plurality of layers. A curable liquid, such as ultraviolet curable ink, is impregnated in vacant pores of the porous sheet, and is cured to obtain a sheet. The sheet thus obtained is particularly suitable for a cutting mat.

The present invention provides a method for manufacturing a semiconductor device for improving a productivity of the semiconductor device, a method and a structure for mounting the semiconductor device. A protective layer (4) is coated with an acroid resin which is used as a light-sensitive resin for forming a bulging body (5), to form a resin layer. On the resin layer, a mask having an opening portion is located at a prescribed position, further part of the resin layer exposing from the opening portion is exposed by irradiating ultraviolet on the mask. By means of solidifying the resin through the ultraviolet, a cylinder-shaped bulging body (5b) having a plane top is formed. Then, the ultraviolet (11) is irradiated on the bulging body (5b) to heat the bulging body (5b), such that the acroid resin for forming the bulging body (5b) is melted. Due to a surface tension generated on the melted resin, the top of the planar bulging body (5b) is deformed into a smooth curved face. thereby a near-hemisphere-shaped bulging body (5) is formed from the bulging body (5b).

To provide a resin material for molding excellently reducing molding shrinkage and affording a molded product having excellent thin-wall moldability, high dimensional accuracy according to design and excellent stability for thermal deformation and to provide the molded product using the material. The resin material for molding comprises a thermoplastic resin, one kind of fly ash and silica fume. The average particle diameter of the silica fume is <=1 / 10 of the average particle diameter of the one kind of fly ash and the compounding ratio of the one kind of fly ash / silica fume is (20 / 80) to (80 / 20) expressed in terms of mass ratio. The thermoplastic resin is contained in an amount of 10-40 vol.% in the resin material for molding.

The invention discloses a three-dimensional porous fibrous skeleton as well as a preparation method and application of the three-dimensional porous fibrous skeleton. The three-dimensional porous fibrous skeleton is prepared by virtue of the following steps: dissolving poly(3-hydroxybutyrate-co-4-hydroxybutyrate) in the mixed solution of chloroform and acetone to obtain a spinning solution in which the concentration of the polymer is 6wt%-12wt%; collecting on a tin foil by virtue of an electrostatic spinning process to obtain a fibrous membrane, winding the fibrous membrane by use of a glass rod, and unwinding the fibrous membrane from the glass rod after drying and flushing with ethanol, thereby obtaining the three-dimensional expansible porous fibrous skeleton. The three-dimensional porous fibrous skeleton has excellent biodegradability, biocompatibility and elastic property; when the three-dimensional porous fibrous skeleton is applied to the operative treatment of vertebral compression fracture caused by osteoporosis as a sacculus, the problems of bone cement leakage and easy collapse of calcium phosphate bone cement under 100% humidity can be effectively solved; as a result, the three-dimensional porous fibrous skeleton plays an important role in reducing the risk of the percutaneous kyphoplasty and popularizing and utilizing the calcium phosphate bone cement.

A medical resin composition, particularly a dental resin composition is produced by mixing a polymer (A) containing 70% by weight or more of methyl methacrylate units and a liquid of a monomer (B) containing 70% by weight or more of a compound (b1) represented by formula (1): wherein R denotes a methyl group or a hydrogen atom and n is an integer of 2 to 4, in the presence of a polymerization initiator (C) to increase a viscosity. The resin composition can be suitably used in producing a denture base, a mouthpiece or a bone cement. A shaped article formed using such a resin composition exhibits excellent mechanical properties, particularly toughness. Furthermore, such a resin composition can be prepared with ease.

Corrosion-resistant cavitation-suppressing coating is disclosed. The coating includes an ultra-fast curing agent solution and a modified silicon nano-powder solution which are mixed in a volume ratioof 1:1-2. The ultra-fast curing agent solution is polyisocyanate. The modified silicon nano-powder solution includes, by weight, 30-33% of polypropylene oxide diamine, 8-10% of polyether triamine having a molecular weight of 5000, 10-15% of polyphenyl triamine, 8-17% of modified amino silicone, 2-11% of modified fluororesin, 1-2% of an adhesion promoter, 1-2% of pigment and 10-35% of nanometer powder. The coating has excellent mechanical properties, abrasion resistance, impact resistance, scratch resistance and stain resistance, and can suppress cavitation to reduce erosion, thereby prolongingthe service lifetime of a portion damaged by erosion.

This invention provides a rolling bearing comprising a dense ceramic layer formed by a method alternative to a thermal spraying method, and having excellent insulating properties and corrosion resistance and chemical resistance, for example, resistance to chemicals such as acids and alkalis. The rolling bearing comprises an inner ring (1), an outer ring (2), and a plurality of rolling elements (4) interposed between raceway faces of the inner and outer rings. A ceramic film (7) is provided on at least one peripheral face selected from the inner peripheral face of the inner ring (1) and the outer peripheral face of the outer ring (2). The ceramic film is a film formed by an aerosol deposition method utilizing, for example, alumina fine particles as a raw material for aerosol. The film may be formed, for example, by fixing an aerosol ejection nozzle and axially moving the outer ring or inner ring using a positioning XY table while being rotated by an object rotation motor.

A guide wire that due to its wide elastic region and high Young's modulus, simultaneously has pliability and pushability, and that even when its surface is coated with a plastic material of high melting point, is highly impervious to influences of heat treatment, and that has excellent slidability and excels in weldability between a distal-end-side base material and a proximal-end-side core material. The guide wire has a core material comprising a distal-end-side core material and a proximal-end-side core material. The distal-end-side core material is made of an iron alloy having shape memorycapability and superelasticity, consisting essentially of two phases of gamma-phase and gamma'-phase and exhibiting, in a thermal hysteresis of martensite transformation and reverse transformation, adifference between reverse transformation completion temperature (Af-point) and martensite transformation starting temperature (Ms-point) of 100 DEG C or below. The proximal-end-side core material ismade of an alloy containing iron and has an elastic modulus higher than that of the distal-end-side core material. The distal-end-side core material and the proximal-end-side core material are weldedtogether.