Abstract: In a first transfer station, a second transfer station, and a third transfer station, a plurality of sample containers are transferred while being stored from a transfer source rack to a transfer destination rack row. In this case, for each of the sample containers to be a transfer target, a specific transfer destination rack is selected from the transfer destination rack row based on a content of processing to be applied in the future to a sample within the sample container.

Abstract: 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.

Abstract: In a first transfer station, a second transfer station, and a third transfer station, a plurality of sample containers are transferred while being stored from a transfer source rack to a transfer destination rack row. In this case, for each of the sample containers to be a transfer target, a specific transfer destination rack is selected from the transfer destination rack row based on a content of processing to be applied in the future to a sample within the sample container.

Abstract: 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.

Abstract: A friction drive belt (B) includes short fibers (14) and carbon black (18) both scattered so as to be exposed at a surface of at least a contact part (13) of a rubber belt body (10) with a pulley. The short fibers (14) include short, high modulus fibers made of polymers having a main chain which does not contain an aromatic compound and having an initial tensile resistance, measured according to JIS L 1013, of equal to or greater than 100 cN/dtex, and the carbon black (18) contain large-particle-diameter carbon black having an iodine absorption, measured according to JIS K 6217-1, of equal to or less than 40 g/Kg, and/or a specific surface area, measured by nitrogen adsorption according to JIS K 6217-2, of equal to or less than 40 m2/g.

Abstract: The invention provides a transmission belt that can suppress lowering in transmission efficiency and has improved durability. A rubber layer adhered to core wires is formed to have a durometer hardness (shore A) of not less than 72 and not more than 85, or have a tensile stress of not less than 0.5 MPa and not more than 1.7 MPa when stretched 10% in the belt longitudinal direction at 25° C., and the rubber layer is formed to have a weight increase of 90% or less after immersed in light oil for 48 hours at 25° C. or have a weight increase of 80% or less after immersed in toluene for 48 hours at 25° C. Alternatively, the rubber layer adhered to the core wires is formed to have a storage modulus of not less than 10 MPa and not more than 50 MPa and a tan ? of not more than 0.15 as measured by dynamic viscoelasticity measurement under conditions at a static load of 3 kgf/cm2, a dynamic strain of 0.4%, a frequency of 10 Hz and a temperature of 25° C. in a tensile mode in a belt longitudinal direction.

Abstract: A power transmission belt (10) includes: a belt body (11) including a part (14) which is in contact with a flat pulley and which is made of a rubber composition containing an ethylene-?-olefin elastomer with an ethylene content of less than or equal to 60% by mass as raw rubber. The rubber composition forming the contact part (14) with the flat pulley has a storage modulus of 20-60 MPa at 25° C. and a storage modulus of 12 MPa or more at 100° C., short fibers are not blended into the rubber composition, and the grain direction of the rubber composition corresponds to a belt lengthwise direction.

Abstract: A friction drive belt includes: an adhesion rubber layer having a core wire embedded therein so as to form a helical pattern having a pitch in a lateral direction of the belt; a compression rubber layer provided on a surface of the adhesion rubber layer located on an inner side of the belt, and serving as a portion that is to contact pulleys, and a backing rubber layer provided on a surface of the adhesion rubber layer located on an outer side of the belt, and serving as a back portion of the belt. A ratio of tensile stress at 10% elongation of a rubber composition forming the adhesion rubber layer to that of a rubber composition forming the backing rubber layer is 1.77 or more, as measured in a longitudinal direction of the belt at an ambient temperature of 25° C. according to JIS K 6251.

Abstract: A friction drive belt includes: an adhesion rubber layer having a core wire embedded therein so as to form a helical pattern having a pitch in a lateral direction of the belt; a compression rubber layer provided on a surface of the adhesion rubber layer located on an inner side of the belt, and serving as a portion that is to contact pulleys, and a backing rubber layer provided on a surface of the adhesion rubber layer located on an outer side of the belt, and serving as a back portion of the belt. A ratio of tensile stress at 10% elongation of a rubber composition forming the adhesion rubber layer to that of a rubber composition forming the backing rubber layer is 1.77 or more, as measured in a longitudinal direction of the belt at an ambient temperature of 25° C. according to JIS K 6251.

Abstract: A power transmission belt (10) includes: a belt body (11) including a part (14) which is in contact with a flat pulley and which is made of a rubber composition containing an ethylene-?-olefin elastomer with an ethylene content of less than or equal to 60% by mass as raw rubber. The rubber composition forming the contact part (14) with the flat pulley has a storage modulus of 20-60 MPa at 25° C. and a storage modulus of 12 MPa or more at 100° C., short fibers are not blended into the rubber composition, and the grain direction of the rubber composition corresponds to a belt lengthwise direction.

Abstract: A friction drive belt (B) includes short fibers (14) and carbon black (18) both scattered so as to be exposed at a surface of at least a contact part (13) of a rubber belt body (10) with a pulley. The short fibers (14) include short, high modulus fibers made of polymers having a main chain which does not contain an aromatic compound and having an initial tensile resistance, measured according to JIS L 1013, of equal to or greater than 100 cN/dtex, and the carbon black (18) contain large-particle-diameter carbon black having an iodine absorption, measured according to JIS K 6217-1, of equal to or less than 40 g/Kg, and/or a specific surface area, measured by nitrogen adsorption according to JIS K 6217-2, of equal to or less than 40 m2/g.

Abstract: The invention provides a transmission belt that can suppress lowering in transmission efficiency and has improved durability. A rubber layer adhered to core wires is formed to have a durometer hardness (shore A) of not less than 72 and not more than 85, or have a tensile stress of not less than 0.5 MPa and not more than 1.7 MPa when stretched 10% in the belt longitudinal direction at 25° C., and the rubber layer is formed to have a weight increase of 90% or less after immersed in light oil for 48 hours at 25° C. or have a weight increase of 80% or less after immersed in toluene for 48 hours at 25° C. Alternatively, the rubber layer adhered to the core wires is formed to have a storage modulus of not less than 10 MPa and not more than 50 MPa and a tan ? of not more than 0.15 as measured by dynamic viscoelasticity measurement under conditions at a static load of 3 kgf/cm2, a dynamic strain of 0.4%, a frequency of 10 Hz and a temperature of 25° C. in a tensile mode in a belt longitudinal direction.

Abstract: This invention has an object of enhancing the cold resistance of a heavy duty power transmission V-belt without impairing its durability at high temperatures, ensuring its sufficient power transmission capability and concurrently enhancing its permanent set resistance. To attain the object, the invention employs, for a rubber element of the belt, a rubber composition in which 20 to 40 parts by weight of a metal salt monomer of an organic acid and 5 to 35 parts by weight of short fibers are mixed into 100 parts by weight of a rubber component composed of EPDM and HNBR in their ratio of 55/45 to 75/25, the rubber hardness measured with a durometer Type D is 40 to 60, the value of t5 given by a Gehman torsion test is ?50° C. to ?35° C., and the amount of acetone extract from the rubber component is 9% or less.

Abstract: A belt fabric which is provided at a part of a power transmission belt on which frictional forces act is formed by dipping into a rubber solution prepared by dissolving a non cross-linked hydrogenated nitrile rubber composition, mixed with a polyethylene powder having a molecular weight in excess of 1 million and an organic peroxide as a cross-linking agent, in a solvent.

Abstract: In a power transmission belt having a belt body made of a rubber composition, a belt cloth is provided at a friction force acting part of the belt body. The belt cloth is subjected to dipping treatment in a treatment solution obtained by dissolving into a solution a rubber composition in which uncrosslinked ethylene-?-olefin elastomer is mixed with a metal salt of unsaturated carboxylic acid and an organic peroxide as a crosslinking agent.

Abstract: A rubber composition for power transmission belts in a sea-island structure contains an ethylene-?-olefin elastomer containing ethylene of 60 mass % or less in a sea phase, a hydrogenated acrylonitrile-butadiene rubber of which bonded acrylonitrile amount is 30 mass % or less in an island phase and an organic peroxide.

Abstract: This invention has an object of enhancing the cold resistance of a heavy duty power transmission V-belt without impairing its durability at high temperatures, ensuring its sufficient power transmission capability and concurrently enhancing its permanent set resistance. To attain the object, the invention employs, for a rubber element of the belt, a rubber composition in which 20 to 40 parts by weight of a metal salt monomer of an organic acid and 5 to 35 parts by weight of short fibers are mixed into 100 parts by weight of a rubber component composed of EPDM and HNBR in their ratio of 55/45 to 75/25, the rubber hardness measured with a durometer Type D is 40 to 60, the value of t5 given by a Gehman torsion test is ?50° C. to ?35° C., and the amount of acetone extract from the rubber component is 9% or less.

Abstract: The belt body of a power transmission belt is composed of a rubber composition comprising ethylene-á-olefin elastomer as the raw material rubber. The ethylene-á-olefin elastomer as the raw material rubber comprises 7 to 12 mass % of a high molecular weight component having a molecular weight of 106 or more and an ethylene content of 65 mass % or more, and 26 to 60 mass % of a low molecular weight component having a molecular weight of 105 or less and an ethylene content of 60 mass % or less, and the ethylene-é-olefin elastomer has a Mooney viscosity of 50 ML1+4 or less (100 C.).

Abstract: A belt fabric which is provided at a part of a power transmission belt on which frictional forces act is formed by dipping into a rubber solution prepared by dissolving a non cross-linked hydrogenated nitrile rubber composition, mixed with a polyethylene powder having a molecular weight in excess of 1 million and an organic peroxide as a cross-linking agent, in a solvent.

Abstract: The belt body of a power transmission belt is composed of a rubber composition comprising ethylene-á-olefin elastomer as the raw material rubber. The ethylene-á-olefin elastomer as the raw material rubber comprises 7 to 12 mass % of a high molecular weight component having a molecular weight of 106 or more and an ethylene content of 65 mass % or more, and 26 to 60 mass % of a low molecular weight component having a molecular weight of 105 or less and an ethylene content of 60 mass % or less, and the ethylene-á-olefin elastomer has a Mooney viscosity of 50 ML1+4 or less (100 C.).