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 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.

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.

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.