Abstract: The present technology provides a conveyor belt. An upper cover rubber and a lower cover rubber are respectively disposed above and below a core layer so as to sandwich the core layer, which core layer is composed of a plurality of steel cords extending side by side in parallel. The outer diameter of the steel cords is not less than 0.35 mm and not greater than 6.0 mm, and the side-by-side pitch P of the steel cords is greater than 0.35 mm and not greater than 7.0 mm. The steel cords are embedded extending in the longitudinal direction of the conveyor belt.

Abstract: The present invention relates to an anticancer adjuvant containing, as an active ingredient, protopanaxadiol (PPD) or a compound-K, which are types of panaxadiol ginsenoside compounds, and a pharmaceutical composition for treating cancer containing the anticancer adjuvant and an anticancer agent having mitochondria-mediated anticancer activity. The anticancer adjuvant containing the PPD or compound-K provided in the present invention as an active ingredient damages mitochondria in cancer cells, thereby aiding mitochondria-mediated anticancer activity, and thus can be widely used in safer treatment or alleviation of cancer using anticancer agents that exhibit mitochondria-mediated anticancer activity.

Abstract: The present invention is directed to a method for screening a regulator of mitochondrial fission using a cell treated to a protopanaxadiol (PPD)-type ginsenoside compound, a composition therefor, and a kit comprising the composition. As the use of the method for screening the regulator of mitochondrial fission of the present invention enables effective discovery of a formulation capable of preventing, improving, or treating a mitochondria-related disease, the method will be widely used for the development of a therapeutic agent for the mitochondria-related disease.

Abstract: Provided is a conveyor belt specification determination method. Severity of a use condition of a conveyor belt is categorized into categories. A database in which a permissible range of prescribed characteristics of an upper cover rubber, including wear resistance and cut resistance, for each of the categories is set is created; a degree of influence of representative rubber physical properties, which affect the prescribed characteristics, of the upper cover rubber on the prescribed characteristics is ascertained; a category is identified from the use conditions of the conveyor belt on the basis of the database; an appropriate range of the representative rubber physical property is identified for which the prescribed characteristics are in the permissible range in the identified category; and a rubber type for which the rubber physical properties are in this appropriate range is selected as the upper cover rubber.

Abstract: The present technology provides a rubber composition containing: a diene-based rubber containing a natural rubber and a butadiene rubber; a carbon black 1; and a carbon black 2. A nitrogen adsorption specific surface area of the carbon black 1 is from 60 to 100 m2/g; a dibutyl phthalate oil absorption of the carbon black 1 is 120 cm3/100 g or less; a nitrogen adsorption specific surface area of the carbon black 2 is from 20 to 40 m2/g; a dibutyl phthalate oil absorption of the carbon black 2 is from 70 to 95 cm3/100 g; and a total amount of the carbon black 1 and the carbon black 2 being from 25 to 50 parts by mass per 100 parts by mass of the diene-based rubber.

Abstract: A rubber-reinforcing steel cord embedded in a rubber product has a stranded structure including a core strand, and a plurality of sheath strands intertwined around an outer circumferential surface of the core strand; wherein a lubricant is provided between wires that constitute the core strand.

Abstract: An evaluation subject formed by a cut sample of a conveyor belt is mounted on a flat substrate with an inner periphery-side cover rubber layer located on the upper side, a support roller mounted in a frame is horizontally pulled and rolled in the longitudinal direction of the evaluation subject by pulling the frame by a wire while the support roller is pressed vertically downward against the upper surface of the evaluation subject at a preset pressure using a pneumatic cylinder without substantial deformation of the outer peripheral surface thereof, and tensile force in a horizontal direction measured at this time by a tensile force sensor connected to the wire is evaluated as resistance to moving over the support roller.

Abstract: Provided is a conveyor belt wear monitoring system capable of determining the wear condition of an upper rubber cover of a conveyor belt. When the conveyor belt is stopped, on the return side of the conveyor belt, a wear detector with a sensor unit corresponding to an upper cover rubber is disposed, the wear detector is controlled by a control unit to move across an entire length in a belt width direction and the distance from the sensor unit and a surface of the upper cover rubber is detected, the detected data is received by a calculation unit, and an amount of wear of the upper cover rubber is calculated on the basis of the received data.

Abstract: The present technology provides an impact test device and method. The rotational speed of a rotary drum with a rubber sample attached on the outer surface is set to a desired rotational speed, the impact cycle for the surface of the rubber sample of the contact member by the repeat-impact mechanism is set to a desired cycle, the impact load by the contact member is set to a desired impact load by a weight member, a desired contact member is selected from among the plurality of contact members with different specifications, and the contact member is repeatedly made to collide with the surface of the rubber sample by rotating a vertical excitation roller and pivoting the arm portion in the vertical direction with a rotation shaft.

Abstract: A conveyor belt includes a core layer disposed between an upper cover rubber layer and a lower cover rubber layer. The core layer is configured from a plurality of steel cords covered by cushioning rubber and arranged in parallel. The rubber that forms the lower cover rubber layer is a low loss rubber that has a loss factor tan? of 0.07 or less at a frequency of 10 Hz, 2% dynamic strain, and temperature of 20° C. The maximum thickness of the cushioning rubber is reduced to not more than ? the nominal diameter of the steel cords.

Abstract: A wear testing method includes setting a rotational speed of a rotary drum with a rubber sample attached to an outer surface thereof to a desired speed; setting a pressing load imparted by a contact member to a desired pressing load via a weight member; selecting as the contact member a desired contact member from a plurality of contact members with varying specifications for a contact surface that comes into contact with the surface of the rubber sample; attaching an arm portion that composes a pressing mechanism; rotating the rotary drum; and pressing the contact member against the surface of the rubber sample with the contact member being moveable in a tangent line direction of a rotation direction of the rotary drum, and detecting an amount of displacement in a pressing direction of the contact member pressing against the surface of the rubber sample via a displacement sensor.

Abstract: A method of manufacturing a coating is provided, which includes applying a primer paint on a substrate, wherein the primer paint includes 100 parts by weight of a first PVF, 30-70 parts by weight of an assistance resin, 5-30 parts by weight of a curing agent, 100-120 parts by weight of a first latent solvent, 3-methoxy-3-methyl-1-butanol, and water. The first latent solvent, 3-methoxy-3-methyl-1-butanol, and water have a weight ratio of 60:10-20:40-60. The method also applies a finish paint on the primer paint, wherein the finish paint includes 100 parts by weight of a second PVF, 100-120 parts by weight of a second latent solvent, 3-methoxy-3-methyl-1-butanol, and water, wherein the second latent solvent, 3-methoxy-3-methyl-1-butanol, and water have a weight ratio of 50:10-20:30-60. The primer paint and the finish paint are baked and dried to form a coating.

Abstract: A method of manufacturing a bi-layered coating is provided, which includes applying a primer paint on a substrate, wherein the primer paint includes 100 parts by weight of a first polyvinyl fluoride, 20 to 50 parts by weight of an assistance resin, and 150 to 170 parts by weight of a first latent solvent, and wherein the assistance resin is polyester modified epoxy resin, polyester type polyurethane resin, phenoxy resin, or a combination thereof. The primer paint is baked and dried to form a primer coating. A finish paint is then applied onto the primer coating, wherein the finish paint includes 100 parts by weight of a second polyvinyl fluoride and 120 to 150 parts by weight of a second latent solvent. The finish paint is baked and dried to form a finish coating on the primer coating.

Abstract: A baking-type aqueous organic silicon fluorine-containing polymer paint is provided, which includes an aqueous organic silicon fluorine-containing polymer dispersion and a curing agent. The curing agent includes aqueous amino resin, aqueous isocyanate resin, or a combination thereof. In addition, the paint may further include an assist resin such as aqueous polyester resin, aqueous acrylic acid resin, aqueous epoxy resin, aqueous phenoxy resin, or a combination thereof.

Abstract: The present technology provides a rubber composition containing: a diene-based rubber containing a natural rubber and a butadiene rubber; a carbon black 1; and a carbon black 2. A nitrogen adsorption specific surface area of the carbon black 1 is from 60 to 100 m2/g; a dibutyl phthalate oil absorption of the carbon black 1 is 120 cm3/100 g or less; a nitrogen adsorption specific surface area of the carbon black 2 is from 20 to 40 m2/g; a dibutyl phthalate oil absorption of the carbon black 2 is from 70 to 95 cm3/100 g; and a total amount of the carbon black 1 and the carbon black 2 being from 25 to 50 parts by mass per 100 parts by mass of the diene-based rubber.

Abstract: A rubber-reinforcing steel cord embedded in a rubber product has a stranded structure including a core strand, and a plurality of sheath strands intertwined around an outer circumferential surface of the core strand; wherein a lubricant is provided between wires that constitute the core strand.

Abstract: A coating rubber composition for a conveyer belt, comprising 15 to 75 parts by mass of carbon black having a nitrogen adsorption specific surface area of 50 m2/g or less, 25 to 100 parts by mass of calcium carbonate and 40 parts or less by mass of an oil per 100 parts by mass of blended rubber comprising of natural rubber and at least one of either butadiene rubber or SBR. The above coating rubber composition for conveyer belts can improve not only the peel force which is a criterion of adhesiveness with the canvas cloth but also the power-saving capability of the conveyer belt while maintaining the durability thereof. Further, compounding of silica in an amount of 5 to 20 parts by mass can achieve a sufficient rubber attachability onto the canvas cloth when over-vulcanized, while maintaining the peel force when subjected to normal vulcanization.

Abstract: The present technology provides a rubber composition for a conveyor belt. The rubber composition comprises: a rubber component containing butadiene rubber and/or styrene butadiene rubber, carbon black, sulfur, and a vulcanization accelerator; the glass transition temperature of the butadiene rubber and the styrene butadiene rubber being ?65° C. or lower; the nitrogen adsorption specific surface area of the carbon black being 90 m2/g or less; the total content of the butadiene rubber and the styrene butadiene rubber being 50% by mass or greater relative to the content of the rubber component; the content of the carbon black being from 30 to 50 parts by mass per 100 parts by mass of the rubber component; and the mass ratio (sulfur/vulcanization accelerator) of the content of the sulfur to the content of the vulcanization accelerator being 1.5 or less.

Abstract: The present technology provides a rubber composition for a conveyor belt. The rubber composition comprises: a rubber component containing butadiene rubber and/or styrene butadiene rubber, carbon black, sulfur, and a vulcanization accelerator; the glass transition temperature of the butadiene rubber and the styrene butadiene rubber being ?65° C. or lower; the nitrogen adsorption specific surface area of the carbon black being 90 m2/g or less; the total content of the butadiene rubber and the styrene butadiene rubber being 50% by mass or greater relative to the content of the rubber component; the content of the carbon black being from 30 to 50 parts by mass per 100 parts by mass of the rubber component; and the mass ratio (sulfur/vulcanization accelerator) of the content of the sulfur to the content of the vulcanization accelerator being 1.5 or less.

Abstract: An evaluation subject formed by a cut sample of a conveyor belt is mounted on a flat substrate with an inner periphery-side cover rubber layer located on the upper side, a support roller mounted in a frame is horizontally pulled and rolled in the longitudinal direction of the evaluation subject by pulling the frame by a wire while the support roller is pressed vertically downward against the upper surface of the evaluation subject at a preset pressure using a pneumatic cylinder without substantial deformation of the outer peripheral surface thereof, and tensile force in a horizontal direction measured at this time by a tensile force sensor connected to the wire is evaluated as resistance to moving over the support roller.