A toothed belt includes: a belt body having a plurality of tooth portions provided on a belt inner circumference at a constant pitch; and a cord embedded in the belt body so as to have a pitch in a belt width direction, and a peak friction coefficient μA and an average friction coefficient μB measured by the following method have a relationship of μA−μB≤0.3 and μB≤0.5. The toothed belt is cut in the width direction to cut out a measurement sample having two belt teeth from the toothed belt, the measurement sample is placed on a flat plate made of SUS304 such that tooth tips thereof are in contact with the flat plate while a constant load is applied thereto, a friction force when the measurement sample is moved at a speed of 100 mm/min in one direction for 30 seconds is measured.
A belt includes: a belt main body; at least one energizing core cord containing a core wire having electrical conductivity; and at least one reinforcing core cord having an electrical resistance per unit length being greater than that of the energizing core cord, wherein the belt main body has at least one belt hole which penetrates the belt main body in a thickness direction, the energizing core cord and the reinforcing core cord are embedded in the belt main body along a length direction of the belt main body to be spaced apart in a width direction of the belt main body, and each distance between the energizing core cord and a periphery of the belt hole is no less than 0.5 mm.
A pen input device sheet is disposed over a position detection region of a position detecting sensor. The pen input device sheet includes an elastic material layer that has elasticity and has a side opposite to a side of the position detecting sensor employed as a side of a writing input surface to which writing input with an electronic pen is to be made. The elastic material layer has a first uneven pattern formed along a direction orthogonal to a thickness direction of the elastic material layer and a second uneven pattern that is formed along a direction orthogonal to the thickness direction of the elastic material layer and is different from the first uneven pattern.
G06F 3/039 - Accessories therefor, e.g. mouse pads
G01L 1/14 - Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators
A belt according to one embodiment of the present invention includes: a belt main body; at least one energizing core cord including a conductive core wire; and at least one reinforcing core cord having a higher electrical resistance per unit length than the energizing core cord, wherein the energizing core cord and the reinforcing core cord are embedded, along a length direction of the belt main body, in the belt main body at an interval in a width direction thereof, the energizing core cord includes a coating film constituting a peripheral face and covering the core wire, and the coating film is fused with the belt main body.
A toothed belt includes a plurality of tooth bodies that are each covered by a reinforcing fabric to form teeth. Kurtosis of a surface roughness of a surface of the reinforcing fabric is 2.15 or more at the teeth.
F16G 1/28 - Driving-belts with a contact surface of special shape, e.g. toothed
D03D 15/283 - Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
D03D 15/30 - Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the fibres or filaments
D06M 15/693 - Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials with macromolecular compoundsSuch treatment combined with mechanical treatment with natural or synthetic rubber, or derivatives thereof
A silver fine particle composition contains: silver fine particles; an amine; and a diol. The silver fine particles have an average particle diameter of 40 nm or more and 100 nm or less. A volume proportion of silver fine particles having particle diameters of 100 nm or less in an entirety of the silver fine particles is 5% or higher and 25% or lower. A volume proportion of silver fine particles having particle diameters of more than 500 nm in the entirety of the silver fine particles is 10% or higher and 60% or lower.
A raw edge V-belt includes a belt body made of rubber and having pulley contact surfaces formed on both sides thereof in a belt width direction, and a cord embedded in the belt body, wherein a compressive elastic modulus of the raw edge V-belt in the belt width direction measured at 120° C. is not less than 150 MPa and not greater than 250 MPa, and a 90° coefficient of friction on a belt side surface of the raw edge V-belt is not less than 1.4 and not greater than 1.8.
A toothed belt includes a belt body made of a rubber composition. The rubber composition contains a hydrogenated nitrile rubber having a bound acrylonitrile content of 15% by mass or more and 30% by mass or less, has a hardness of A70 or more and A80 or less at a test temperature of 25° C., and has a cold resistance index of 0.25 or less after being heat-aged by being exposed to an atmosphere at a temperature of 140° C. for 144 hours, the cold resistance index being defined by the following formula (I):
A toothed belt includes a belt body made of a rubber composition. The rubber composition contains a hydrogenated nitrile rubber having a bound acrylonitrile content of 15% by mass or more and 30% by mass or less, has a hardness of A70 or more and A80 or less at a test temperature of 25° C., and has a cold resistance index of 0.25 or less after being heat-aged by being exposed to an atmosphere at a temperature of 140° C. for 144 hours, the cold resistance index being defined by the following formula (I):
Cold
Resistance
Index
=
5
%
Modulus
at
Test
Temperature
of
-
40
°
C
.
/
Hardness
at
Test
Temperature
of
25
°
C
.
(
I
)
A power transmission belt includes a belt body made of an elastomer, and a cord made of carbon fibers and provided to be embedded in the belt body and to form a helical pattern having a pitch in the belt width direction. When the cord is viewed from a side orthogonal to its length direction, an angle θ of an outermost filament in the filament bundle of the carbon fibers forming the cord with respect to the length direction of the cord is 8° or more to 20° or less.
A crosslinked rubber composition includes: a rubber component containing a first polymer which is an ethylene-α-olefin elastomer having an ethylene content of less than 60% by mass and a second polymer which is an ethylene-α-olefin elastomer having an ethylene content of 60% by mass or more; and short fibers dispersed in the rubber component. The rubber component is crosslinked by using organic peroxide as a crosslinking agent. The content of the organic peroxide in a not-yet crosslinked rubber composition is 1 part by mass or more and 10 parts by mass or less relative to 100 parts by mass of the rubber component.
A toothed belt includes: a belt body having a flat band-shaped back rubber portion and tooth rubber portions placed on an inner circumferential side of the back rubber portion, the back rubber portion and the tooth rubber portions being each composed of a thermoplastic elastomer composition; a cord containing carbon filaments; and a tooth portion covering material provided on an inner circumferential side of the belt body and covering the tooth rubber portions. An elastomer component of the thermoplastic elastomer composition is a TPAE or a TPC, a hardness of the thermoplastic elastomer composition forming the back rubber portion is not less than 25 and not greater than 70, a hardness of the thermoplastic elastomer composition forming the tooth rubber portions is not less than 40 and not greater than 70, and the hardness of the thermoplastic elastomer composition forming the back rubber portion is not greater than the hardness of the thermoplastic elastomer composition forming the tooth rubber portions.
The present invention provides an optically clear adhesive sheet that prevents delay bubble generation and has a large thickness, a high adhesive strength to an adherend, a high capability to conform to the adherend, and excellent weather resistance; a laminate including the optically clear adhesive sheet; and a bonded structure including the optically clear adhesive sheet. The optically clear adhesive sheet includes, in the following order: a first surface-adhesive layer; an intermediate polyurethane layer; and a second surface-adhesive layer, the intermediate polyurethane layer containing a hindered amine-based light stabilizer, the optically clear adhesive sheet having a loss tangent at 85° C. of 0.25 or more and 0.6 or less, the intermediate polyurethane layer having a thickness of 100 μm or greater and 2000 μm or smaller.
Cover film has a base material layer and a surface layer chemically bonded to the base material layer, where the surface layer includes a polyurethane resin X1 containing urethane and urea units and a polyorganosiloxane group in the molecule, the polyurethane resin X1 is a reaction product of a non-yellowing-type isocyanate component B1 with an active hydrogen component A1 including a compound a1-1, the base material layer includes a polyurethane resin X2 having a urethane bond in the molecule, and the polyurethane resin X2 is a reaction product of a non-yellowing-type isocyanate component B2 with an active hydrogen component A2 which does not include the compound a1-1, and has a certain crosslinking point concentration and also has a certain elastic recovery rate.
A power transmission belt includes a belt body made of an elastomer, and a cord made of carbon fibers and provided to be embedded in the belt body and to form a helical pattern having a pitch in the belt width direction. When the cord is viewed from a side orthogonal to its length direction, an angle θ of an outermost filament in the filament bundle of the carbon fibers forming the cord with respect to the length direction of the cord is 8° or more to 20° or less.
A transmission system using a toothed belt includes a belt body made of elastomer and a core wire made of carbon fiber and provided so as to be embedded in the belt body and form a helix having a pitch in a belt width direction. The belt body includes a flat band portion having a horizontally long rectangular cross section and a plurality of tooth portions integrally provided on an inner peripheral side of the flat band portion. A belt tension T0.2 per belt width of 1 mm when a belt elongation rate is 0.2% is 70 N/mm or more, an amount of backlash between the toothed belt and a toothed pulley is 0.10 mm or more and less than 0.65 mm, a hardness of the belt body is 89° or more in JIS K 6253 Durometer Type A, and a surface dynamic friction coefficient is 1.5 or less.
F16G 1/28 - Driving-belts with a contact surface of special shape, e.g. toothed
F16H 7/02 - Gearings for conveying rotary motion by endless flexible members with beltsGearings for conveying rotary motion by endless flexible members with V-belts
F16G 1/10 - Driving-belts made of rubber with reinforcement bonded by the rubber with textile reinforcement
F16G 1/16 - Driving-belts made of plastics with reinforcement bonded by the plastic material
D02G 3/26 - Yarns or threads characterised by constructional features with characteristics dependent on the amount or direction of twist
D02G 3/44 - Yarns or threads characterised by the purpose for which they are designed
D02G 3/16 - Yarns or threads made from mineral substances
A power transmission belt includes a belt body made of an elastomer, and a cord made of carbon fibers and provided to be embedded in the belt body and to form a helical pattern having a pitch in the belt width direction. When the cord is viewed from a side orthogonal to its length direction, an angle θ of an outermost filament in the filament bundle of the carbon fibers forming the cord with respect to the length direction of the cord is 8° or more to 20° or less.
A water-repellent structure includes: a base material; and a water-repellent layer located on a surface of the base material. The water-repellent layer contains water-repellent particles and filler particles having an average particle size that is 20 times or more as large as an average particle size of the water-repellent particles.
D06M 11/78 - Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereofSuch treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof with siliconTreating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereofSuch treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof with halides or oxyhalides of siliconTreating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereofSuch treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof with fluorosilicates
A friction transmission belt includes a belt body which transmits power to a pulley. In a relationship between a friction coefficient and a slipping speed which is a difference between a speed of the belt body and a speed of the pulley, when a slipping speed at which a maximum friction coefficient is indicated is defined as a first slipping speed, a friction coefficient when the slipping speed is increased from the first slipping speed to a second slipping speed is defined as a reference friction coefficient, and a difference between the second slipping speed and the first slipping speed is 500 mm/s, a decrease rate Dm of the friction coefficient indicated by the following equation (1) with the maximum friction coefficient being denoted by μx and the reference friction coefficient being denoted by μr is not greater than 20%.
A friction transmission belt includes a belt body which transmits power to a pulley. In a relationship between a friction coefficient and a slipping speed which is a difference between a speed of the belt body and a speed of the pulley, when a slipping speed at which a maximum friction coefficient is indicated is defined as a first slipping speed, a friction coefficient when the slipping speed is increased from the first slipping speed to a second slipping speed is defined as a reference friction coefficient, and a difference between the second slipping speed and the first slipping speed is 500 mm/s, a decrease rate Dm of the friction coefficient indicated by the following equation (1) with the maximum friction coefficient being denoted by μx and the reference friction coefficient being denoted by μr is not greater than 20%.
Dm=(μx−μr)/μx×100 (1)
A V-ribbed belt includes a plurality of V-shaped ribs, each of the plurality of V-shaped ribs includes a V-shaped rib body formed from a rubber composition and a rib-side reinforcing fabric covering a surface of the V-shaped rib body, the rib-side reinforcing fabric is a woven fabric containing a first fiber and a second fiber, and in the woven fabric, at least either the first fiber or the second fiber is inclined relative to a longitudinal direction and a width direction of the belt.
A V-ribbed belt includes a plurality of V-shaped ribs, each of the plurality of V-shaped ribs includes a V-shaped rib body formed from a crosslinked rubber composition and a fiber member covering a surface of the V-shaped rib body, the crosslinked rubber composition is a crosslinked product of an uncrosslinked rubber composition containing a rubber component, a crosslinking agent, and at least either an unsaturated carboxylic acid metal salt or a maleimide compound, and a total amount of the unsaturated carboxylic acid metal salt and the maleimide compound per 100 parts by mass of the rubber component is 1 to 40 parts by mass.
A friction transmission belt includes a compression layer forming a pulley contact portion, the compression layer includes an inner layer formed from a rubber composition and an outer layer provided on a pulley contact side of the inner layer and formed from a fiber member, and a ratio (M10 modulus/M50 modulus) of an modulus at 10% elongation in a belt longitudinal direction (M10 modulus) to an modulus at 50% elongation in the belt longitudinal direction (M50 modulus), of the rubber composition, is not less than 1.5.
The purpose of the present invention is to provide a developing roller which is not prone to scumming in a nonprinting area. The solution is to provide a developing roller which has an elastic layer, a coat layer formed on the elastic layer, and end portion coat layers formed on outermost surfaces on two axial end portions, wherein the end portion coat layer contains a conductive material.
A power transmission belt includes a belt body made of rubber and a cord embedded in the belt body. The belt body has a portion having the cord embedded therein, and the portion is made of a rubber composition having a storage normal modulus at 25° C. in a grain direction of 80 MPa or more and the ratio of the storage normal modulus at 25° C. in the grain direction to a storage normal modulus at 25° C. in a cross-grain direction of 1.20 or more to 2.50 or less. The rubber composition is arranged such that the grain direction corresponds to a belt length direction and the cross-grain direction corresponds to a belt width direction.
A power transmission belt includes a pulley non-contacting portion made of a rubber composition. The rubber composition contains a rubber component, cellulose-based fine fibers, and a non-carbon black hydrophilic inorganic filler, and contains no carbon black or contains carbon black in an amount of less than 20 parts by mass relative to 100 parts by mass of the rubber component.
A large V-belt includes an endless rubber belt body including an adhesive rubber layer and a cord embedded in the adhesive rubber layer of the belt body. The large V-belt has a belt thickness of 15 mm or more and the belt width of 10 mm or more at the center, in a belt thickness direction, of a cord embedded position. The belt body further includes reinforced rubber layers made of a rubber composition having a type A durometer hardness of 92 or more, the reinforced rubber layers being stacked on a belt inner side and/or a belt outer side of the adhesive rubber layer in the belt thickness direction.
A raw edge V-belt includes: a compression rubber layer formed on an inner side of the belt and made of a rubber composition. The rubber composition contains a rubber component, fine cellulose fibers, and short fibers. The content of the short fibers in the rubber composition is 25 parts by mass or more and 45 parts by mass or less per 100 parts by mass of the rubber component, and the volume fraction of the short fibers in the rubber composition is 12.5 vol % or more.
A power transmission belt includes a belt body at least portion of which is made of a rubber composition containing a rubber component, cellulose-based fine fibers, and cotton powder.
The present invention addresses the problem of providing a surface protection film for a flexible display with which films are not adhered to each other. As a solution, provided is the surface protection film for a flexible display that has a protection layer made of polyurethane as an outermost surface thereof, the polyurethane having a tan δ peak temperature of 20° C. or more.
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
B29C 43/28 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of indefinite length incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
B29C 43/30 - Making multilayered or multicoloured articles
B32B 7/06 - Interconnection of layers permitting easy separation
The present invention addresses the problem of providing a surface protection film for a flexible display in which creases are unlikely to remain. As a solution, provided is the surface protection film for a flexible display that has a protection layer made of polyurethane as an outermost surface thereof, the polyurethane having a stress relaxation rate of 30% or less after 300 seconds at an elongation of 50%.
The present invention addresses the problem of providing a surface-protective film which is excellent in terms of antiglare property, scratch resistance, and oil resistance. Provided as a means for solving the problem is a surface-protective film which comprises a protective layer constituted of a polyurethane, both surfaces of the protective layer being flat, and a hardcoat layer formed on one of the surfaces of the protective layer, wherein the hardcoat layer has an arithmetic average roughness Ra of equal to or greater than 0.1 and equal to or less than 0.8 μm.
A blade attachment tool includes a first support member supported by a pressing support portion supporting a blade formed of an elastic member configured to wipe/scrape liquid/solids spreading on an abutment surface by being pressed against the abutment surface and being long in one direction such that the blade is pressed against the abutment surface with a predetermined pressing force, a second support member supported to swing about a swing shaft extending in a longitudinal direction of the blade with respect to the first support member and configured such that a base end side of the blade is attached thereto, and an energizing member configured to apply a reaction force to a friction force that causes the second support member to swing about the swing shaft with respect to the first support member when the blade is pressed against the abutment surface to slide relatively to the abutment surface.
B05C 11/04 - Apparatus for spreading or distributing liquids or other fluent materials already applied to a surfaceControl of the thickness of a coating with blades
B60S 1/42 - Connections between blades and arms resilient
Provided is a thermally conductive molded resin article that can be inexpensively mass-produced and that exhibits a low thermal resistance value as a result of reducing internal thermal resistance by high filling and reducing interfacial thermal resistance by improving cutting precision. The thermally conductive molded resin article is characterized by comprising a resin and thermally conductive fillers including a first thermally conductive filler and a second thermally conductive filler having a smaller particle size than the first thermally conductive filler. The thermally conductive molded resin article is also characterized in that: the first thermally conductive filler has an aspect ratio of 10 or more and is oriented approximately in the thickness direction of the thermally conductive molded resin article; the resin is a silicone resin, an acrylic rubber, or a fluororubber; and the second thermally conductive filler has a thermal conductivity surpassing 5 W/mK.
The present invention addresses the problem of providing a surface protection film having superior oil resistance. Provided is a surface protection film having a coating layer obtained by curing an isocyanate compound, on one surface of a protection layer formed of a polyurethane.
B32B 27/20 - Layered products essentially comprising synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
B32B 7/06 - Interconnection of layers permitting easy separation
B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
B32B 27/24 - Layered products essentially comprising synthetic resin characterised by the use of special additives using solvents or swelling agents
B32B 27/26 - Layered products essentially comprising synthetic resin characterised by the use of special additives using curing agents
A crosslinked rubber composition contains a rubber component and para-aramid short fibers having a filament fineness of 2.5 dtex or more and dispersed in the rubber component.
A cord of a toothed belt is made of a twisted yarn including a band-like material. The band-like material includes a filament bundle of high-strength glass fibers integrated together through a binder. The binder contains a rubber component, at least either a maleimide-based compound or a polyisocyanate compound, and a powdery inorganic filler. A surface of a reinforcing fabric facing opposite to the toothed belt body is coated with a surface-coating rubber layer made of a rubber composition containing a rubber component including hydrogenated nitrile-butadiene rubber as a main part.
The present invention addresses the problem of providing a surface protection film which provides an excellent writing sensation when a touch pen is used thereon and excellent scratch resistance against a touch pen. As a solution, provided is a surface protection film which has on the outermost surface thereof a protection layer formed of a polyurethane, wherein the polyurethane has an international rubber hardness degree (IRHD) of 87.0-98.0 and a tan δ peak value of 0.6 or more.
C09J 7/20 - Adhesives in the form of films or foils characterised by their carriers
C09J 7/25 - PlasticsMetallised plastics based on macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
C09J 7/40 - Adhesives in the form of films or foils characterised by release liners
G02B 1/14 - Protective coatings, e.g. hard coatings
A grinding material includes a base sheet and a grinding layer overlaid on a front face side of the base sheet and including abrasive grains and a binder for the abrasive grains. The grinding layer includes the abrasive grains of a plurality of types. Of the abrasive grains of the plurality of types, provided that first abrasive grains have the largest average diameter and second abrasive grains have the second largest average diameter, the percentage of the average diameter of the second abrasive grains with respect to that of the first abrasive grains is 5-70%. The total content of the abrasive grains in the grinding layer is preferably 50-85% by volume. The content of the first abrasive grains in the grinding layer is preferably 1-25% by volume. The first abrasive grains are preferably diamond abrasive grains and the second abrasive grains are preferably alumina abrasive grains.
A sealing member for machine tools is capable of keeping sealing performance. The sealing member includes a support member and an elastic member formed in a flat plate shape. The elastic member includes an edge portion to slide on a sliding surface of a machine tool. The support member has a support surface facing a part of a front surface of the elastic member. The sealing member is mounted to the machine tool such that the elastic member is sandwiched between a mount portion of the machine tool and the support surface of the support member. The elastic member has a fixed portion sandwiched between the mount portion and the support member. A lip portion not sandwiched between the mount portion and the support member when the sealing member is mounted to the machine tool, the lip portion including the edge portion and configured to be curved.
B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
In a toothed belt including a toothed belt body and a reinforcing cloth, the toothed belt body includes a rubber composition and has a base part formed into a flat band shape and a plurality of rubber tooth parts, which are arranged integrally with one face of the base part and spaced apart from each other in a belt lengthwise direction. The reinforcing cloth is attached to the toothed belt body to cover a face, of the toothed belt body, with the rubber tooth parts. Each of the rubber tooth parts is covered with the reinforcing cloth in a corresponding one of cloth-covered tooth parts where a rate of a volume of the reinforcing cloth with respect to a volume of the cloth-covered tooth part is 60% or more.
F16G 1/28 - Driving-belts with a contact surface of special shape, e.g. toothed
B32B 3/30 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids characterised by a layer formed with recesses or projections, e.g. grooved, ribbed
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
B32B 25/10 - Layered products essentially comprising natural or synthetic rubber next to a fibrous or filamentary layer
F16G 1/10 - Driving-belts made of rubber with reinforcement bonded by the rubber with textile reinforcement
A toothed pulley P is made with a thermoplastic resin and includes a pulley body with an outer circumference along which teeth are arranged at a constant pitch. The pulley body is made of a resin composition containing a copolymer of nylon 6T and nylon 11 and glass fibers with a flat cross section.
C08L 77/00 - Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chainCompositions of derivatives of such polymers
B29D 15/00 - Producing gear wheels or similar articles with grooves or projections, e.g. control knobs
A power transmission belt includes: a belt body and a cover fabric made of a fabric containing synthetic fibers as a main component and covering a surface of the belt body toward a pulley contact surface. The cover fabric has a surface toward the belt body, and the surface is in contact with a rubber composition containing cellulose-based short fibers. The rubber composition includes a rubber component in which the cellulose-based short fibers are dispersed. The cover fabric and the rubber composition containing the cellulose-based short fibers are exposed on a pulley contact surface.
There is provided a surface protective film having an excellent writing sensation when a touch pen is used. A surface protective film has a protective layer made of a polyurethane on the outermost surface, and the protective layer has an arithmetic average roughness (Ra) of 0.3 μm or more and 0.6 μm or less, and a maximum height (Rz) of 1.5 μm or more and 3.5 μm or less.
G02B 1/04 - Optical elements characterised by the material of which they are madeOptical coatings for optical elements made of organic materials, e.g. plastics
G02B 1/14 - Protective coatings, e.g. hard coatings
A power transmission belt is at least partially formed of a rubber composition. The rubber composition contains a rubber component, cellulose nanofibers, and carbon black. The amount of the cellulose nanofibers to be added is from 0.1 parts by mass to 20 parts by mass, relative to 100 parts by mass of the rubber component. The amount of the carbon black to be added is from 5 parts by mass to 80 parts by mass, relative to 100 parts by mass of the rubber component. The sum of the amount of the carbon black to be added and three times the amount of the cellulose nanofibers to be added is from 15 to 90.
C08L 11/00 - Compositions of homopolymers or copolymers of chloroprene
D06M 11/51 - Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereofSuch treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof
A power transmission belt at least includes a bottom rubber layer. A rubber composition for forming the bottom rubber layer contains a rubber component, cellulose fine fibers, and short fibers. The cellulose fine fibers have an average diameter from 1 nm to 200 nm, and the rubber composition contains 0.5 parts by mass or more of the cellulose fine fibers relative to 100 parts by mass of the rubber component. The short fibers have an average diameter from 5 μm to 30 μm, and the rubber composition contains 1 part by mass or more of the short fibers relative to 100 parts by mass the rubber component.
A power transmission belt (B) has a reinforcing fabric (13) covering a pulley contact surface thereof. A cover layer (15) adheres to the reinforcing fabric (13) to cover surfaces of fibers or yarns constituting the reinforcing fabric (13), and is exposed outside. The cover layer (15) contains crosslinked polyolefin particles (16) in which polyolefin molecules are crosslinked with each other.
F16G 1/10 - Driving-belts made of rubber with reinforcement bonded by the rubber with textile reinforcement
D06M 15/227 - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of hydrocarbons, or reaction products thereof, e.g. afterhalogenated or sulfochlorinated
D06M 23/08 - Processes in which the treating agent is applied in powder or granular form
F16G 1/28 - Driving-belts with a contact surface of special shape, e.g. toothed
A belt-type transmission includes a drive pulley, a driven pulley, and a V-belt. In at least a certain range of a low-speed layout, a pulley-groove V angle of a portion of a drive pulley where the V-belt is wrapped is larger than an average belt V angle when the V-belt is bent at a curvature corresponding to a wrapping diameter of the V-belt with respect to the drive pulley, and a pulley-groove V angle of a portion of a driven pulley where the V-belt is wrapped is larger than an average belt V angle when the V-belt is bent at a curvature corresponding to the wrapping diameter of the V-belt with respect to the driven pulley.
F16G 5/20 - V-belts, i.e. belts of tapered cross-section with a contact surface of special shape, e.g. toothed
F16H 7/02 - Gearings for conveying rotary motion by endless flexible members with beltsGearings for conveying rotary motion by endless flexible members with V-belts
F16G 5/08 - V-belts, i.e. belts of tapered cross-section made of rubber with reinforcement bonded by the rubber with textile reinforcement
In a tension measurement device, a load cell, a base portion in which the load cell is provided, a pair of load transfer beams each having a support point and an action point provided in different positions and being configured to transfer a load to the load cell at a tip side, and a pressing member which is supported by the base side pins of the pair of load transfer beams and to which the load is applied are provided.
A thermally conductive resin molded article having a resin and a thermally conductive filler is provided. The thermally conductive filler is oriented substantially in the thickness direction of the thermally conductive resin molded article. The volumetric filling factor of the thermally conductive filler in the thermally conductive resin molded article is 20-80% by volume. Weld lines in the resin are formed substantially in the thickness direction of the thermally conductive resin molded article. An oil component is included in the thermally conductive resin molded article.
The present invention addresses the problem of providing a bill conveying roller base having an excellent swelling resistance. In order to solve this problem, the bill conveying roller base is provided with an elastic layer covering at least part of the outer peripheral surface, the elastic layer comprising a thermosetting polyurethane which is obtained by reacting polyol components containing a lactone-based polyol with polyisocyanate components containing methylene diphenyl diisocyanate (MDI).
The present invention provides a method for manufacturing a molded foam product which can reduce or prevent blisters and crinkles on the surface even in the case of manufacturing a molded product designed to have a small thickness, thereby giving a molded foam product having excellent heat insulation while avoiding an increase in the amounts of materials used. The method for manufacturing a molded foam product according to the present invention includes the steps of: injecting, during injection molding, a molten resin containing a supercritical fluid or a chemical foaming agent into a cavity formed in a mold that includes a movable portion; and moving the movable portion to increase the volume of the cavity before the molten resin injected into the cavity completely solidifies, the mold alternately including, in a direction from a resin injection port to the periphery of the cavity, first linear portions each giving a large gap size in the cavity and second linear portions each giving a small gap size in the cavity.
B29C 44/42 - Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum
A rubber composition contains a rubber component, polyparaphenylene terephthalamide short fibers, silica, and carbon black. The content of the silica is larger than the content of the carbon black.
The present invention addresses the problem of providing a surface protective film which is resistant to discoloration, expansion and the like caused by the penetration of a plasticizer. A surface protective film having, on the outermost surface thereof, a protective layer made of polycarbonate type polyurethane is provided as the solution of the problem.
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
Furukawa Industrial Machinery Systems Co., Ltd. (Japan)
Bando Chemical Industries, Ltd. (Japan)
Inventor
Katamata, Hiromi
Kitazawa, Tsuyoshi
Yokomaku, Ayumu
Fujikake, Akihisa
Fujita, Atsushi
Abstract
A conveyor apparatus includes an endless conveyor belt wound around outgoing path side guide pulleys in turn along a helical conveyance path in a bent state where the belt is folded in two in a width direction such that an upper edge portion thereof is supported by the outgoing path side guide pulleys, and wound around returning path side guide pulleys in turn along the helical conveyance path in the bent state where the belt is folded in two in the width direction such that the upper edge portion is supported by the returning path side guide pulleys, and folded back at each turning positions of a horizontal conveyance unit located at an upper side and a horizontal conveyance unit located at a lower side of the support frame and being in an expanded state where the belt expanded in the width direction in a vicinity of the turning position.
B65G 15/02 - Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration for conveying in a circular arc
B65G 15/08 - Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration the load-carrying surface being formed by a concave or tubular belt, e.g. a belt forming a trough
B65G 39/12 - Arrangements of rollers mounted on framework
An inner peripheral surface of a belt is cogged so that cogs extend in a belt width direction and are arranged adjacent to one another at regular intervals in a belt length direction. A tip portion of the cog and a bottom portion of a groove formed between the cogs have curved surfaces each having an arc-shaped cross section. A curvature radius of a cross-sectional shape of the bottom portion of the groove is set to be larger than a curvature radius of a cross-sectional shape of the tip portion of the cog.
F16G 5/20 - V-belts, i.e. belts of tapered cross-section with a contact surface of special shape, e.g. toothed
B32B 3/26 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids
B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
F16G 5/08 - V-belts, i.e. belts of tapered cross-section made of rubber with reinforcement bonded by the rubber with textile reinforcement
F16H 7/02 - Gearings for conveying rotary motion by endless flexible members with beltsGearings for conveying rotary motion by endless flexible members with V-belts
A shaped structure and a fabric material are set in a belt mold such that the shaped structure and the fabric material are respectively positioned inside and outside with respect to each other. While each of compression layer-forming portions comprised of ridges of the shaped structure covered with the fabric material is fitted in an associated one of compression layer-shaping grooves of the belt mold, the shaped structure is pressed toward the belt mold and heated to be crosslinked, and integrated with the fabric material, thereby molding a cylindrical belt slab. The belt slab is cut into ring-shaped pieces having two or more of the compression layer-forming portions.
According to a production method of a power transmission belt, a shaped structure having a cylindrical shape is placed radially inward of belt mold having a cylindrical shape. The shaped structure is provided on a mandrel and has a plurality of ridges arranged adjacent to one another in an axial direction of the shaped structure. The belt mold has a plurality of compression layer-shape grooves arranged adjacent to one another in an axial direction of the belt mold. The shaped structure is crosslinked by heating and pressing the shaped structure toward the mandrel while each of compression layer-forming portions, which are comprised of the plurality of ridges of the shaped structure, is fitted in an associated one of the compression layer-shape grooves of the belt mold, thereby molding a cylindrical belt slab.
Provided is a method for producing a V-ribbed belt having a plurality of V-shaped ribs extending in a longitudinal direction and arranged in a width direction. The method includes: setting a shaped structure having a plurality of ridges arranged adjacent to one another in a belt mold including a plurality of compressed rubber layer-shaping grooves arranged adjacent to one another on an inner peripheral surface of the mold; molding a belt slab by crosslinking the shaped structure set in the mold, while compressed rubber layer-forming portions face radially outward and are fitted in the compressed rubber layer-shaping grooves, the compressed rubber layer-forming portions comprised of a surface rubber layer and a core rubber layer which are to constitute surface and inner portions, respectively; and cutting the belt slab into ring-shaped pieces having two or more of the compressed rubber layer-forming portions.
B29C 43/18 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
B29C 35/02 - Heating or curing, e.g. crosslinking or vulcanising
F16G 5/06 - V-belts, i.e. belts of tapered cross-section made of rubber with reinforcement bonded by the rubber
F16G 5/08 - V-belts, i.e. belts of tapered cross-section made of rubber with reinforcement bonded by the rubber with textile reinforcement
F16G 5/20 - V-belts, i.e. belts of tapered cross-section with a contact surface of special shape, e.g. toothed
B29K 9/00 - Use of rubber derived from conjugated dienes, as moulding material
B29K 105/00 - Condition, form or state of moulded material
B29K 105/24 - Condition, form or state of moulded material cross-linked or vulcanised
A toothed belt is provided with toothed portions arranged at a regular pitch in a belt length direction. A belt body is made of a rubber composition containing, as a main ingredient of a rubber component, ethylene-α-olefin elastomer having an ethylene content of 44% by mass to 66% by mass. A reinforcing fabric is adhered to a surface of the belt body on a toothed side, with a reinforcing fabric adhesion coat interposed between the reinforcing fabric and the belt body. The reinforcing fabric adhesion coat is made of a rubber composition containing hydrogenated nitrile-butadiene rubber as a main ingredient of a rubber component.
B32B 3/28 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids characterised by a layer comprising a deformed thin sheet, e.g. corrugated, crumpled
B32B 3/30 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids characterised by a layer formed with recesses or projections, e.g. grooved, ribbed
B32B 25/10 - Layered products essentially comprising natural or synthetic rubber next to a fibrous or filamentary layer
C08J 5/00 - Manufacture of articles or shaped materials containing macromolecular substances
C08J 5/24 - Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
F16G 1/10 - Driving-belts made of rubber with reinforcement bonded by the rubber with textile reinforcement
In a friction transmission belt including a rubber layer forming a pulley contact surface, the rubber layer includes a rubber composition containing hydrophilic inorganic filler and a sliding-resistant material. The sliding-resistant material protrudes from the pulley contact surface, and is at least one of hydrophobic resin particles and hydrophobic resin fibers having an official regain of 0.4% or below, and in the rubber composition, a content of the hydrophilic inorganic filler with respect to 100 parts by mass of the rubber component is 35 parts by mass or more.
C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
C08L 101/12 - Compositions of unspecified macromolecular compounds characterised by physical features, e.g. anisotropy, viscosity or electrical conductivity
F16G 5/00 - V-belts, i.e. belts of tapered cross-section
F16G 5/06 - V-belts, i.e. belts of tapered cross-section made of rubber with reinforcement bonded by the rubber
F16G 5/20 - V-belts, i.e. belts of tapered cross-section with a contact surface of special shape, e.g. toothed
F16G 1/28 - Driving-belts with a contact surface of special shape, e.g. toothed
F16G 1/10 - Driving-belts made of rubber with reinforcement bonded by the rubber with textile reinforcement
In a friction transmission belt including a rubber layer forming a pulley contact surface, the rubber layer includes a rubber composition containing polyolefin particles and an inorganic filler. In the rubber composition, a total content of the polyolefin particles and the inorganic filler with respect to 100 parts by mass of a rubber component is 85 parts by mass or more.
C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
C08L 101/12 - Compositions of unspecified macromolecular compounds characterised by physical features, e.g. anisotropy, viscosity or electrical conductivity
F16G 5/00 - V-belts, i.e. belts of tapered cross-section
F16G 5/06 - V-belts, i.e. belts of tapered cross-section made of rubber with reinforcement bonded by the rubber
F16G 5/20 - V-belts, i.e. belts of tapered cross-section with a contact surface of special shape, e.g. toothed
F16G 1/28 - Driving-belts with a contact surface of special shape, e.g. toothed
C08L 23/00 - Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bondCompositions of derivatives of such polymers
F16G 1/08 - Driving-belts made of rubber with reinforcement bonded by the rubber
F16G 1/10 - Driving-belts made of rubber with reinforcement bonded by the rubber with textile reinforcement
65.
Method for producing belt, and cylindrical mold and crosslinking apparatus used therefor
A method include: providing a cylindrical mold made of metal, a shaped structure having a cylindrical shape, a rotation mechanism configured to rotatably support the cylindrical mold, and an electromagnetic induction coil configured to heat the cylindrical mold through electromagnetic induction; setting the shaped structure inside the cylindrical mold; and molding a cylindrical belt slab by heating the cylindrical mold by the electromagnetic induction coil, while the cylindrical mold is rotated by the rotation mechanism and the shaped structure is pressurized from inside and pressed against the cylindrical mold.
B29C 33/08 - Moulds or coresDetails thereof or accessories therefor with incorporated heating or cooling means for dielectric heating
B29C 43/18 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
B29D 29/10 - Driving belts having wedge-shaped cross-section
B32B 3/30 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids characterised by a layer formed with recesses or projections, e.g. grooved, ribbed
B32B 17/10 - Layered products essentially comprising sheet glass, or fibres of glass, slag or the like comprising glass as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
B32B 25/08 - Layered products essentially comprising natural or synthetic rubber comprising rubber as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
F16G 1/28 - Driving-belts with a contact surface of special shape, e.g. toothed
F16G 5/06 - V-belts, i.e. belts of tapered cross-section made of rubber with reinforcement bonded by the rubber
F16G 5/20 - V-belts, i.e. belts of tapered cross-section with a contact surface of special shape, e.g. toothed
66.
Method for producing belt, and two-layer bonding machine
A surface sheet which is to constitute a surface layer and a core sheet which is to constitute a core layer are prepared. A plurality of ridges is formed on the core sheet, and the surface sheet is bonded such that the surface sheet covers the plurality of ridges, thereby forming compression layer-forming portions.
B32B 3/30 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids characterised by a layer formed with recesses or projections, e.g. grooved, ribbed
B32B 25/08 - Layered products essentially comprising natural or synthetic rubber comprising rubber as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
67.
Optical transparent adhesive sheet, method for producing optical transparent adhesive sheet, laminated body, and display device with touch panel
4 Pa, a loss tangent (tan δ) at 85° C. of 0.3 to 0.97, and a thickness of 50 to 2000 μm. The optically clear adhesive sheet preferably has an adhesive strength measured by a 180° peel test of 2 N/25 mm or more.
G06F 3/041 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
G09F 9/00 - Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
The present invention addresses the problem of providing a surface protective film laminate, surface protective film and its producing method. The surface protective film which has excellent smoothness, light transmission properties, transparency, scratch resistance, weather resistance and self-healing properties. The present invention provides, as a solution, a surface protective film wherein three layers, namely, a protective layer, a transparent base film and a pressure-sensitive adhesive layer are laminated in this order, said protective layer being formed of a thermosetting polyurethane which is a cured product of a polyether polyol, an aliphatic isocyanate, an alcohol-based curing agent and a non-amine catalyst.
C09J 7/20 - Adhesives in the form of films or foils characterised by their carriers
B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
B32B 27/26 - Layered products essentially comprising synthetic resin characterised by the use of special additives using curing agents
B32B 27/28 - Layered products essentially comprising synthetic resin comprising copolymers of synthetic resins not wholly covered by any one of the following subgroups
A tension measurement device includes: a pair of rotatable first support rollers; a pressing portion arranged to face a midpoint between the pair of first support rollers; and a load cell capable of measuring a load applied to the pressing portion, and is capable of measuring a tension by clamping a lashing belt between the pair of first support rollers and the pressing portion. A pair of rotatable second support rollers is arranged to face the pair of first support rollers.
G01L 5/00 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
G01L 5/10 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means
G01D 11/06 - Strip or thread suspensions, e.g. in tension
70.
Friction transmission belt and manufacturing method therefor
A friction transmission belt has a rubber layer forming a pulley contacting portion. The rubber layer is made of a rubber composition containing a crosslinked rubber component and crosslinked polyolefin particles. Examples of the crosslinked polyolefin particles can contain ultrahigh molecular weight polyolefin particles having an average molecular weight of 500,000 or more.
The present invention provides an optically clear adhesive sheet using a heat-curable polyurethane composition, wherein the optically clear adhesive sheet can, when bonded to an adherend such as a glass plate, prevent the occurrence of air bubbles even at high temperature and normal humidity and maintain a stable bonded interface. The optically clear adhesive sheet of the present invention is an optically clear adhesive sheet containing: a cured product of a heat-curable polyurethane composition, the heat-curable polyurethane composition containing a polyol component and a polyisocyanate component, the polyol component having an olefin skeleton, the polyisocyanate component containing an acyclic aliphatic polyisocyanate and/or an alicyclic polyisocyanate.
C08G 71/00 - Macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a ureide or urethane link, otherwise than from isocyanate radicals
C09J 7/10 - Adhesives in the form of films or foils without carriers
A compressed rubber layer of a V-ribbed belt includes a surface rubber layer including side surface portions of V-shaped ribs, and an inner rubber portion provided inside the surface rubber layer. The surface rubber layer and the inner rubber portion are each made of a rubber composition containing an ethylene-α-olefin elastomer as a main ingredient of a rubber component. An ethylene content of the ethylene-α-olefin elastomer contained in the rubber component of the rubber composition forming the surface rubber layer is higher than an ethylene content of the ethylene-α-olefin elastomer contained in the rubber component of the rubber composition forming the inner rubber portion.
F16G 5/20 - V-belts, i.e. belts of tapered cross-section with a contact surface of special shape, e.g. toothed
F16G 5/08 - V-belts, i.e. belts of tapered cross-section made of rubber with reinforcement bonded by the rubber with textile reinforcement
B32B 3/28 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids characterised by a layer comprising a deformed thin sheet, e.g. corrugated, crumpled
B32B 25/14 - Layered products essentially comprising natural or synthetic rubber comprising copolymers in which synthetic rubber constituents predominate
A V-ribbed belt has a cord made of polyester-based fibers, the total fiber fineness of which is 2200 dtex or more and 5500 dtex or less. A fiber fineness of the cord per belt width corresponding to a single V-shaped rib ranges from 10000 dtex to 19000 dtex. A belt dry-heat shrinkage force per belt width corresponding to a single V-shaped rib is 44 N or more. The belt dry-heat shrinkage force is a load increase with respect to a belt length of 300 mm in 30 minutes after applying, in an atmosphere of 150° C., a load of 6N in the belt longitudinal direction and holding the belt.
F16G 5/20 - V-belts, i.e. belts of tapered cross-section with a contact surface of special shape, e.g. toothed
B29D 29/10 - Driving belts having wedge-shaped cross-section
B32B 3/30 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids characterised by a layer formed with recesses or projections, e.g. grooved, ribbed
B32B 25/04 - Layered products essentially comprising natural or synthetic rubber comprising rubber as the main or only constituent of a layer, next to another layer of a specific substance
D01F 6/62 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolycondensation products from polyesters
D02G 3/02 - Yarns or threads characterised by the material or by the materials from which they are made
The purpose of the present invention is to provide a grinding material which has a superior grinding rate and planarizing accuracy, with the grinding rate being less likely to be reduced over a relatively long period of time. The present invention is directed to a grinding material including a base, a grinding layer overlaid on a front face side of the base and including grinding grains and a binder for the grinding grains, and an adhesion layer overlaid on a back face side of the base, in which the grinding grains are diamond grinding grains, a wear quantity of the grinding layer as determined by a Taber abrasion test is no less than 0.03 g and no greater than 0.18 g, and, an Asker D hardness measured from a front face side of the grinding layer is no less than 80° and no greater than 98°.
B24D 3/02 - Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special natureAbrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
B24D 11/00 - Constructional features of flexible abrasive materialsSpecial features in the manufacture of such materials
B24D 3/00 - Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special natureAbrasive bodies or sheets characterised by their constituents
B24D 3/34 - Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special natureAbrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties
B24D 3/04 - Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special natureAbrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic
B24D 13/14 - Wheels having flexibly-acting working parts, e.g. buffing wheelsMountings therefor acting by the front face
B24D 11/02 - Backings, e.g. foils, webs, mesh fabrics
B24D 3/14 - Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special natureAbrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic ceramic, i.e. vitrified bondings
B24D 18/00 - Manufacture of grinding tools, e.g. wheels, not otherwise provided for
A pulley contacting portion of a friction transmission belt is made of a rubber composition containing an EPDM mixture as a rubber component. The EPDM mixture as the rubber component includes a first EPDM with an ethylene content of 67% by mass or more and a second EPDM with an ethylene content of 57% by mass or less. A content of the second EPDM in the EPDM mixture is larger than a content of the first EPDM in the EPDM mixture. An average ethylene content of the EPDM mixture is 54% by mass or more and 59% by mass or less.
F16G 1/10 - Driving-belts made of rubber with reinforcement bonded by the rubber with textile reinforcement
F16G 5/08 - V-belts, i.e. belts of tapered cross-section made of rubber with reinforcement bonded by the rubber with textile reinforcement
F16G 5/20 - V-belts, i.e. belts of tapered cross-section with a contact surface of special shape, e.g. toothed
B32B 3/30 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids characterised by a layer formed with recesses or projections, e.g. grooved, ribbed
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
B32B 27/12 - Layered products essentially comprising synthetic resin next to a fibrous or filamentary layer
76.
Urethane composition, polyurethane elastomer and transmission belt
An object is to provide a polyurethane elastomer excellent in strength and surface smoothness. To attain the object, a urethane composition including a certain prepolymer, a plasticizer and a crosslinking agent is provided.
H01B 3/30 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances plasticsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes
B32B 15/08 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
C09D 1/00 - Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
H01B 5/14 - Non-insulated conductors or conductive bodies characterised by their form comprising conductive layers or films on insulating-supports
C08K 9/04 - Ingredients treated with organic substances
H01B 5/16 - Non-insulated conductors or conductive bodies characterised by their form comprising conductive material in insulating or poorly conductive material, e.g. conductive rubber
H01B 1/20 - Conductive material dispersed in non-conductive organic material
B05D 7/00 - Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
B05D 5/12 - Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain a coating with specific electrical properties
78.
Optical transparent adhesive sheet, method for producing optical transparent adhesive sheet, laminate and display device with touch panel
The present invention provides an optically clear adhesive sheet having excellent environment resistance using a heat-curable polyurethane composition that has excellent flexibility and is capable of giving a thick film. The optically clear adhesive sheet of the present invention is formed of: a cured product of a heat-curable polyurethane composition, the heat-curable polyurethane composition containing a polyol component, a polyisocyanate component, and a tackifier, the polyol component having an olefin skeleton, the polyisocyanate component being a modified polyisocyanate that is obtained by reacting an acyclic aliphatic and/or alicyclic polyisocyanate containing an isocyanate group with an ether compound containing an ethylene oxide unit.
C09J 7/40 - Adhesives in the form of films or foils characterised by release liners
C08G 18/70 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
A belt transmission system includes a first pulley, a second pulley, and an automatic tensioner including a first tension pulley, a fixed member, an arm, and a second tension pulley. The arm is swingable about an axis of the fixed member. When the first or second pulley serves as a driving pulley, a torque at one of the first and second tension pulleys located on a slack side at a maximum torque is higher than a torque of the other one located on a tight side.
F16H 7/12 - Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley
F02B 67/06 - Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functionsDriving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus driven by means of chains, belts, or like endless members
F16H 7/08 - Means for varying tension of belts, ropes, or chains
Disclosed is a power transmission belt having a belt body made of rubber, and a cord embedded in the belt body so as to form a helical pattern having a pitch in a belt width direction. The cord is coated with an adhesion layer formed by an adhesion treatment and containing a rubber component, and the adhesion layer is in contact with a rubber composition containing cellulose-based fine fibers.
B32B 25/02 - Layered products essentially comprising natural or synthetic rubber with fibres or particles embedded in it or bonded with it
C09J 121/00 - Adhesives based on unspecified rubbers
B32B 25/16 - Layered products essentially comprising natural or synthetic rubber comprising polydienes or poly-halodienes
B32B 25/14 - Layered products essentially comprising natural or synthetic rubber comprising copolymers in which synthetic rubber constituents predominate
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
B32B 25/04 - Layered products essentially comprising natural or synthetic rubber comprising rubber as the main or only constituent of a layer, next to another layer of a specific substance
B32B 3/30 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids characterised by a layer formed with recesses or projections, e.g. grooved, ribbed
B32B 25/10 - Layered products essentially comprising natural or synthetic rubber next to a fibrous or filamentary layer
B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
F16G 1/28 - Driving-belts with a contact surface of special shape, e.g. toothed
F16G 1/10 - Driving-belts made of rubber with reinforcement bonded by the rubber with textile reinforcement
C08L 97/02 - Lignocellulosic material, e.g. wood, straw or bagasse
C08L 23/16 - Ethene-propene or ethene-propene-diene copolymers
A pair of insertion portions each having a through hole through which a lashing belt is inserted and extends are arranged at a predetermined distance from each other, and coupled to each other with coupling portions. A tension detecting portion is provided at the coupling portions. The tension detecting portion extends, at a predetermined vertical distance from a line connecting the through holes of the pair of insertion portions to each other, in a width direction of the lashing belt. In a state where the lashing belt is inserted to extend through the pair of insertion portions, a surface of the lashing belt is brought into contact with the tension detecting portion, and the tension detecting portion is configured to be broken when a predetermined or greater tension is applied to the lashing belt.
G01L 5/04 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
G01L 5/06 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using mechanical means
A capacitive sensor includes a sensor sheet having a central electrode layer and a measuring instrument. A first dielectric layer is laminated on the upper surface of the central electrode layer. A second dielectric layer is laminated on the lower surface of the central electrode layer. A first outer electrode layer is formed on the surface of the first dielectric layer. A second outer electrode layer is formed on the surface of the second dielectric layer. The central electrode layer and the first outer electrode layer face each other at a first detection portion. The central electrode layer and the second outer electrode layer face each other at a second detection portion. Capacitances of the detection portions change with deformation. The state of deformation of the sensor sheet is measured on the basis of the total capacitance by adding the capacitances of the first detection portion and the second detection portion.
G01B 7/16 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
G01D 5/24 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance
G01L 1/14 - Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators
G01N 27/22 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
G01R 27/26 - Measuring inductance or capacitanceMeasuring quality factor, e.g. by using the resonance methodMeasuring loss factorMeasuring dielectric constants
G06F 3/041 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
G06F 3/044 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
84.
Abrasive material and production method of abrasive material
It is an object of the present invention to provide an abrasive material which enables: processing efficiency and finished planarity of a substrate material to be simultaneously improved at a high level; polishing costs to be reduced; and a difficult-to-process substrate composed of sapphire or silicon carbide to be polished efficiently and precisely. An abrasive material comprises a substrate and an abrasive layer laminated on a front face side of the substrate, wherein the abrasive layer includes a binder containing an inorganic substance as a principal component, and abrasive particles dispersed in the binder, wherein a front face of the abrasive layer comprises a plurality of regions provided through dividing by grooves, and wherein a maximum peak height (Rp) on the front face of the abrasive layer is no less than 2.5 μm and no greater than 70 μm.
B24D 3/04 - Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special natureAbrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic
B24D 3/34 - Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special natureAbrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties
B24B 37/24 - Lapping pads for working plane surfaces characterised by the composition or properties of the pad materials
Provided is an abrasive film not likely to cause an end face defect of an optical fiber connector due to variation in load conditions during polishing, while providing a great grinding force. The abrasive film comprises a substrate film and an abrasive layer overlaid thereon, the abrasive layer comprising abrasive particles and a binder therefor and a wear quantity of the abrasive layer being from 10 mg to 25 mg. A content of the abrasive particles in the abrasive layer is preferably no less than 85% by mass. The abrasive particles preferably comprise first abrasive particles (primary particle diameter: of no less than 10 nm and less than 50 nm), and second abrasive particles (primary particle diameter: no less than 50 nm and less than 250 nm). An average thickness of the abrasive layer is preferably from 4 μm to 15 μm. The abrasive particles are preferably silica particles.
B24D 3/00 - Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special natureAbrasive bodies or sheets characterised by their constituents
G02B 6/38 - Mechanical coupling means having fibre to fibre mating means
B24D 11/00 - Constructional features of flexible abrasive materialsSpecial features in the manufacture of such materials
A thermally conductive resin molded article having a resin and a thermally conductive filler is provided. The thermally conductive filler is oriented substantially in the thickness direction of the thermally conductive resin molded article. The volumetric filling factor of the thermally conductive filler in the thermally conductive resin molded article is 20-80% by volume. Weld lines in the resin are formed substantially in the thickness direction of the thermally conductive resin molded article. An oil component is included in the thermally conductive resin molded article.
A toothed belt includes an uneven surface formed due to a weave pattern of a woven fabric or a knit loop pattern of a knitted fabric at a tooth bottom portion between toothed portions.
2. The abrasive particles are preferably silica particles. An average thickness of the abrasive layer is preferably no less than 4 μm and no greater than 15 μm.
Provided are a fine silver particle dispersion which exhibits low temperature sinterability and in which fine silver particles are uniformly dispersed in a variety of solvents (and especially highly polar solvents); fine silver particles that exhibit low temperature sinterability and excellent dispersion stability in a variety of solvents (and especially highly polar solvents); a dispersion obtained using the fine silver particles; and a method for producing same. The fine silver particle dispersion is characterized by containing fine silver particles, a short chain amine having 5 or fewer carbon atoms, and a highly polar solvent and in that the partition coefficient (log P) of the short chain amine is −1.0 to 1.4.
B23K 35/30 - Selection of soldering or welding materials proper with the principal constituent melting at less than 1550°C
B22F 9/24 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
C09D 17/00 - Pigment pastes, e.g. for mixing in paints
H01B 1/22 - Conductive material dispersed in non-conductive organic material the conductive material comprising metals or alloys
H01B 13/00 - Apparatus or processes specially adapted for manufacturing conductors or cables
B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
B23K 35/02 - Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
A belt transmission system comprises: a first pulley; a second pulley; a belt; and an automatic tensioner having a first tension pulley and a second tension pulley applying tension to a portion of the belt located at a tension side and a portion of the belt located at a slack side of the belt, and an arm. Force from the belt makes the first tension pulley and the second tension pulley rotate in the same direction. When the first tension pulley rotates in a direction tensioning the belt, the second tension pulley also rotates in a direction tensioning the belt.
F16H 7/12 - Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley
F02B 67/06 - Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functionsDriving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus driven by means of chains, belts, or like endless members
F02N 11/04 - Starting of engines by means of electric motors the motors being associated with current generators
F16H 7/08 - Means for varying tension of belts, ropes, or chains
Provided is a clamping-type tensile force measurement device configured to clamp a belt being used to lash a cargo and to measure a tensile force of the belt. The measurement device includes: a base having a pair of support rollers which are rotatable; and a lid connected to the base via a hinge portion such that the base and the lid form a foldable structure. A load cell is installed in a backside portion of the lid. A pressing plate having a pressing portion positioned to face a space between the pair of support rollers is provided on a backside of the lid.
G01L 1/22 - Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluidsMeasuring force or stress, in general by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
G01L 5/10 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means
G01L 5/03 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring release force of ski safety bindings
A sensor device includes a sensor element, a converter, and an output unit. The sensor element includes a sheet-like dielectric layer including an elastomer composition and a top electrode layer and a bottom electrode layer each including an electroconductive composition containing carbon nanotubes. The top and the bottom electrode layers are formed on a top surface and a bottom surface of the dielectric layer, respectively, and are at least partially opposed to each other across the dielectric layer. The at least partially opposed portions of the top and the bottom electrode layers constitute a detection portion, and the dielectric layer reversibly deforms to change an area of a main surface of the dielectric layer. The converter electrically is connected to the sensor element and converts capacitance at the detection portion that varies in accordance with the deformation of the dielectric layer to electric characteristics.
G01B 7/16 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
A61B 5/11 - Measuring movement of the entire body or parts thereof, e.g. head or hand tremor or mobility of a limb
G01D 5/241 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance by relative movement of capacitor electrodes
A frictional transmission belt according to the present disclosure has a belt body wound around a pulley to transmit power. The belt includes a water absorptive fabric covering at least one side of the belt body that contacts with the pulley.
B29D 29/10 - Driving belts having wedge-shaped cross-section
F16G 5/08 - V-belts, i.e. belts of tapered cross-section made of rubber with reinforcement bonded by the rubber with textile reinforcement
B29K 23/00 - Use of polyalkenes as moulding material
B29K 105/00 - Condition, form or state of moulded material
B29K 105/08 - Condition, form or state of moulded material containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
B29K 105/12 - Condition, form or state of moulded material containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles
A power transmission belt has a cord embedded in a belt body made of rubber. The cord is configured as a plied yarn with a total fiber fineness of 4000 to 5000 dtex. The plied yarn consists of four primarily-twisted yarns, each being obtained by subjecting a bundle of para-aramid fibers with a fiber fineness of 1000 to 1250 dtex to a primary twist in one direction at a twist coefficient of 1200 to 1350, and these four primarily-twisted yarns are then secondarily twisted in the opposite direction to the primary twist at a twist coefficient of 900 to 1100, thereby obtaining the plied yarn.
F16G 5/08 - V-belts, i.e. belts of tapered cross-section made of rubber with reinforcement bonded by the rubber with textile reinforcement
F16G 1/08 - Driving-belts made of rubber with reinforcement bonded by the rubber
F16G 5/06 - V-belts, i.e. belts of tapered cross-section made of rubber with reinforcement bonded by the rubber
F16G 5/20 - V-belts, i.e. belts of tapered cross-section with a contact surface of special shape, e.g. toothed
F16G 1/10 - Driving-belts made of rubber with reinforcement bonded by the rubber with textile reinforcement
F16G 1/28 - Driving-belts with a contact surface of special shape, e.g. toothed
F16H 7/02 - Gearings for conveying rotary motion by endless flexible members with beltsGearings for conveying rotary motion by endless flexible members with V-belts
An object of the present invention is to provide a sealing member for machine tools which has excellent reliability because excellent sealability can be maintained for a long period of time and which can be manufactured efficiently at low cost. The sealing member for machine tools of the present invention includes a supporting member; a plate-shaped elastic member; and an adhesive layer which bonds the elastic member to the supporting member. The supporting member has a shape of a bent plate-like body, the elastic member is bonded to the supporting member via the adhesive layer laminated on a part of a front face of the elastic member so as to be curved along the bent shape of the supporting member, and a corner portion formed by a back face and one side face of the elastic member is assumed to be an edge portion in contact with an opposite material, and the one side face is formed by cutting.
Provided is a stretchable electrode which has excellent flexibility, stretchability and electrical conductivity and is capable of suppressing increase of the electric resistance in being elongated and the occurrence of variation in the electric resistance during repeated stretching and contracting. The stretchable electrode of the present invention comprises a base formed of an elastomer composition and an electrode main body integrated with the base, wherein the electrode main body is formed using multi-walled carbon nanotubes having a fiber length of 50 μm or more.
G01L 7/08 - Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges of the flexible-diaphragm type
G01L 9/12 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elementsTransmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in capacitance
G01B 7/16 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
G01L 1/14 - Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators
H01G 11/36 - Nanostructures, e.g. nanofibres, nanotubes or fullerenes
A method of manufacturing a power transmission belt includes: molding and vulcanizing an endless tension member layer in which a cord extending in a belt length direction is embedded; molding and vulcanizing a rubber member for a compressed rubber layer; and bonding together the tension member layer that has been vulcanized and the rubber member, that has been vulcanized, for the compressed rubber layer.
F16G 3/10 - Joining belts by sewing, sticking, vulcanising, or the likeConstructional adaptations of the belt ends for this purpose
B29D 29/10 - Driving belts having wedge-shaped cross-section
F16G 1/12 - Driving-belts made of rubber with reinforcement bonded by the rubber with metal reinforcement
F16G 5/10 - V-belts, i.e. belts of tapered cross-section made of rubber with reinforcement bonded by the rubber with metal reinforcement
F16G 1/08 - Driving-belts made of rubber with reinforcement bonded by the rubber
F16G 5/06 - V-belts, i.e. belts of tapered cross-section made of rubber with reinforcement bonded by the rubber
F16G 5/20 - V-belts, i.e. belts of tapered cross-section with a contact surface of special shape, e.g. toothed
B29C 35/02 - Heating or curing, e.g. crosslinking or vulcanising
B29C 47/02 - incorporating preformed parts or layers, e.g. extrusion moulding around inserts or for coating articles
B29C 65/48 - Joining of preformed partsApparatus therefor using adhesives
F16G 1/04 - Driving-belts made of fibrous material, e.g. textiles, whether rubber-covered or not
F16G 1/10 - Driving-belts made of rubber with reinforcement bonded by the rubber with textile reinforcement
F16G 1/28 - Driving-belts with a contact surface of special shape, e.g. toothed
B29K 21/00 - Use of unspecified rubbers as moulding material
B29K 105/10 - Condition, form or state of moulded material containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns oriented
A power transmission belt has a front rubber face and a back rubber surface. The back rubber surface has an uneven surface of rubber which, when the power transmission belt is wound around a flat pulley, comes in contact with the flat pulley. The uneven surface of rubber has a pattern created by a mold having an impression of a surface of a woven fabric or a knitted fabric. The impression has projected parts and recessed parts, and each of the projected parts has a flat top surface. The power transmission belt is wound around a number of pulleys in a belt transmission system in which the pulleys include a flat pulley with which the uneven surface of the power transmission belt comes in contact.
F16G 1/28 - Driving-belts with a contact surface of special shape, e.g. toothed
F16G 5/20 - V-belts, i.e. belts of tapered cross-section with a contact surface of special shape, e.g. toothed
F16G 5/08 - V-belts, i.e. belts of tapered cross-section made of rubber with reinforcement bonded by the rubber with textile reinforcement
F16G 1/08 - Driving-belts made of rubber with reinforcement bonded by the rubber
B29D 29/10 - Driving belts having wedge-shaped cross-section
F16H 7/02 - Gearings for conveying rotary motion by endless flexible members with beltsGearings for conveying rotary motion by endless flexible members with V-belts
B29C 59/02 - Surface shaping, e.g. embossingApparatus therefor by mechanical means, e.g. pressing
F16G 1/10 - Driving-belts made of rubber with reinforcement bonded by the rubber with textile reinforcement
B29K 23/00 - Use of polyalkenes as moulding material
B29K 105/24 - Condition, form or state of moulded material cross-linked or vulcanised
B29K 105/00 - Condition, form or state of moulded material
A V-belt (B) includes a rubber composition forming a portion (11) to be V-shaped side faces (110). Organic nanofibers (16) and organic short fibers (17) are included in the rubber composition, and oriented along a belt width. In the rubber composition, a ratio of a storage modulus in a grain direction to a storage modulus in cross-grain direction is 5 or greater.
A toothed belt includes an endless back portion, a plurality of belt teeth arranged on a face of the back portion at predetermined intervals in a longitudinal direction of the back portion; and a core made of an elastic knitted or unwoven fabric and embedded in the back portion. Both of the belt teeth and the back portion are made of rubber. The core is not exposed from inter-tooth portions which are located between the belt teeth. In the core, a difference between the position of a point that is closest to the belt teeth in a belt thickness direction and the position of a point that is closest to a back face of the belt in the belt thickness direction is limited to 0.5 mm or less.
F16H 7/02 - Gearings for conveying rotary motion by endless flexible members with beltsGearings for conveying rotary motion by endless flexible members with V-belts
B29K 21/00 - Use of unspecified rubbers as moulding material
B29K 105/24 - Condition, form or state of moulded material cross-linked or vulcanised
patents
