Abstract: A continuous kneading device including a pair of kneading rotors, capable of increasing mesh between the kneading rotors while also suppressing a kneading load applied to the kneading rotors. The continuous kneading device including a barrel and a pair of kneading rotors housed in the barrel. The kneading rotors rotate in mesh in directions different from each other. Each kneading rotor includes a plurality of kneading flights for kneading a material supplied into the barrel. The material is fed axially from the upstream kneading section to the downstream kneading section to be sequentially kneaded. The kneading flight constituting the downstream kneading section has a rotational outer diameter larger than a rotational outer diameter of the kneading flight constituting the upstream kneading section.

Abstract: A method for reducing gel in a polymer kneaded compound flowing in a polymer flow duct includes flowing a polymer kneaded compound in a polymer flow duct to a gel reduction mechanism including a gel reduction member having one or more through holes defining a squeezing flow path having a flow path cross-sectional area smaller than the polymer flow duct. The squeeze ratio S1/S2 of the squeezing flow path is 25 to 177.8, where S1 is a flow path cross-sectional area of the polymer flow duct and S2 is a sum total of flow path cross-sectional area of the squeezing flow path, to generate an extensional flow in the kneaded compound.

Abstract: A method for producing a fluorine-containing compound represented by General formula (1), wherein X represents a halogen atom or an alkoxy group, R1 represents a hydrogen atom or a linear, branched, or cyclic alkyl group having 1 to 10 carbon atoms, Rf1 and Rf2 are each independently a fluorinated alkoxy group, and n represents an integer of 0 or more.

Abstract: Provided is a speed-switchable reduction gear including: an input shaft; an output shaft; a plurality of output-side geared-wheels mounted on the output shaft; a shifter for selecting the output-side geared-wheel to be used; a shifter-side first bearing and a non-shifter-side second bearing provided to each the output-side geared-wheel; and a plurality of dividing walls each provided in each cell between the first and second bearings. The output shaft has an axial lubricating-oil flow path and a plurality of supply flow paths. Each dividing wall divides each cell into a first cell adjacent to the first bearing and a second cell adjacent to the second bearing and allows lubricating oil to be supplied from the supply flow paths into the first and second cells so as to make pressure of lubricating oil in the first cell higher than that in the second cell.

Abstract: A semiconductor device of the present invention is provided with a plurality of memory chips laminated to each other, each of said memory chips having: a first transmission/reception coil for communication by means of inductive coupling; first lead-out lines led out from both ends of the first transmission/reception coil; and a first transmission/reception circuit, which is connected to the first lead-out lines, and which inputs/outputs signals to/from the first transmission/reception coil.

Abstract: Disclosed is a fluorine-containing composition containing a fluorine-containing compound represented by general formula (1) and a fluorine-based solvent.

Abstract: A continuous kneading device (1) includes a pair of kneading rotors (3), being capable of increasing mesh between the kneading rotors (3) while suppressing a kneading load applied to the kneading rotors (3). The continuous kneading device (1) includes a barrel (2) and a pair of kneading rotors (3) housed in the barrel (2) and rotating in mesh in directions different from each other. Each kneading rotor (3) includes a plurality of kneading flights (11, 15) for kneading a material supplied into the barrel (2). The kneading flights (11, 15) and respective portions of the barrel (2) housing the kneading flights (11, 15) respectively configure a plurality of kneading sections aligned axially of the kneading rotors (3). The material is fed axially from the upstream kneading section to the downstream kneading section to be sequentially kneaded.

Abstract: A compound represented by formula (e): where R1 represents a branched chain or cyclic alkyl group having 3 to 10 carbon atoms, and Rf1 and Rf2 represent fluorinated alkoxy groups.

Abstract: A fluorine-containing compound represented by a following general formula (1) is provided. [In the general formula (1), X represents a halogen atom or an alkoxy group, R1 represents a branched chain or cyclic alkyl group having 3 to 10 carbon atoms, and Rf1 and Rf2 represent fluorinated alkoxy groups. n represents an integer of 0 or greater.

Abstract: The degree of kneading of a material to be kneaded is to be capable of being adjusted with a high accuracy. A kneading degree adjusting mechanism is installed in a processing apparatus having a barrel and a kneading screw inserted into the barrel rotatably, the kneading screw having a kneading section and rotating within the barrel to knead a material continuously while feeding the material from an upstream side toward a downstream side. The kneading degree adjusting mechanism includes a push-back section for pushing back the material to the upstream side and thereby making the material stay around the kneading section, the push-back section being disposed downstream of the kneading section in the kneading screw; a kneading degree adjusting member having an opposed surface opposed to an outer periphery surface of the push-back section; and a drive section for actuating the kneading degree adjusting member so that the opposed surface moves toward and away from the push-back section.

Abstract: A fluorine-containing compound represented by General formula (1), wherein X represents a halogen atom or an alkoxy group, R1 represents a hydrogen atom or a linear, branched, or cyclic alkyl group having 1 to 10 carbon atoms, Rf1 and Rf2 are each independently a fluorinated alkoxy group, and n represents an integer of 0 or more.

Abstract: This kneading rotor (1) is rotatably disposed about a horizontally oriented shaft center, the kneading rotor including at least two or more of kneading flights (7) that are disposed about the shaft center and knead a material. In a cross-section perpendicular to the shaft center of the kneading rotor (1), the kneading flights (7) are provided with working faces (9) that face the material when the kneading rotor (1) is rotated. Recesses (10) where a part of the working faces (9) are partially recessed radially inward are formed on the working faces (9) of the kneading flights (7).

Abstract: A fluorine-containing compound represented by a following general formula (1) is provided. [In the general formula (1), X represents a halogen atom or an alkoxy group, R1 represents a branched chain or cyclic alkyl group having 3 to 10 carbon atoms, and Rf1 and Rf2 represent fluorinated alkoxy groups. n represents an integer of 0 or greater.

Abstract: A production process of acetic acid comprises a reaction step for continuously allowing at least one member selected from the group consisting of methanol, dimethyl ether, and methyl acetate to react with carbon monoxide in a catalyst system comprising a rhodium catalyst, an iodide salt, and methyl iodide in the presence of acetic acid and water in a plant compromising a reactor 1; a flasher 2; and a distillation column 3; wherein part of the vaporized stream is introduced into a heat exchanger 7. The process achieves a production of acetic acid with a high purity in a resource-saving and energy-saving equipment by efficiently removing a reaction heat even in a large-sized plant.

Abstract: A gel reduction device 1 of the present invention includes a gel reduction mechanism 8 provided in a polymer flow duct 5 in which a polymer kneaded compound flows and adapted to reduce gel present in the polymer kneaded compound. The gel reduction mechanism 8 includes at least one or more squeezing flow paths 10 having a flow path cross-sectional area smaller than the polymer flow duct 5, and a squeeze ratio S1/S2 of the squeezing flow paths 10 is set to be 25 to 180 so as to be able to generate an extensional flow in the kneaded compound flowing in the squeezing flow paths 10.

Abstract: A continuous mixer includes a barrel with a hollow interior, and a pair of mixing rotors housed in the barrel and that rotate in mutually different directions, each mixing rotor including a mixing portion with plural mixing flights formed about an axial center of the mixing rotor and projecting radially outward. The mixing rotors have a center distance therebetween smaller than a rotation outer diameter of each of the respective mixing flights. An inter-rotor clearance, which is the smallest clearance between the mixing portions at each rotation phase of the mixing rotors in a cross section perpendicular to axial directions of the both mixing rotors, has a dimension allowing an extensional flow to be generated in a material passing through the inter-rotor clearance. The continuous mixer can reliably and efficiently mix a material having a large viscosity difference between a dispersed phase and a matrix phase.

Abstract: A production process of acetic acid comprises a reaction step for continuously allowing at least one member selected from the group consisting of methanol, dimethyl ether, and methyl acetate to react with carbon monoxide in a catalyst system comprising a rhodium catalyst, an iodide salt, and methyl iodide in the presence of acetic acid and water in a plant compromising a reactor 1; a flasher 2; and a distillation column 3; wherein part of the vaporized stream is introduced into a heat exchanger 7. The process achieves a production of acetic acid with a high purity in a resource-saving and energy-saving equipment by efficiently removing a reaction heat even in a large-sized plant.

Abstract: In a screw for extruder, a bearing segment having a function of supporting a screw main body at an intermediate part when kneading is performed is provided at a position corresponding to a kneading portion or on the downstream side of the kneading portion. The bearing segment is provided with at least two flights having a sectional shape of a complete meshing type with one streak in the axial direction, the flights are arranged in the rotational direction with uniformly displacing a phase thereof respectively, and length of the flights in the axial direction is set to 0.2D (D: rotational outer diameter of the bearing segment) or more. According to the above configuration, bending of the screw main body is prevented and abrasion of the flights and a barrel is suppressed.

Abstract: An inspection method, including: illuminating a light on a wafer on which plural chips having identical patterns are formed; imaging corresponding areas of two chips formed on the wafer to obtain inspection images and reference images with an image sensor; and processing the obtained inspection image and the reference image to produce a difference image which indicates a difference between the inspection image and the reference image and detect a defect by comparing the difference image with a threshold, wherein a threshold applied to a difference image which is produced by comparing the inspection image and the reference image obtained by imaging peripheral portion of the wafer is different from a threshold applied to a difference image which is produced by comparing the inspection image and the reference image obtained by imaging central portion of the wafer.

Abstract: To provide a kneading screw which can reduce such a phenomenon that a disproportional load is imposed onto a shaft of the kneading screw without degrading kneading performance of the kneading screw, a twin screw extruder with the kneading screw, and a method for assembling the kneading screw.