Abstract: A method for producing a fluoropolymer, which includes polymerizing a fluoromonomer in an aqueous medium in the presence of a polymer (1), the polymer (1) including a polymerized unit derived from a monomer CX2?CY(—CZ2—O—Rf-A), wherein X is the same or different and is —H or —F; Y is —H, —F, an alkyl group, or a fluorine-containing alkyl group; Z is the same or different and is —H, —F, an alkyl group, or a fluoroalkyl group; Rf is a C1-C40 fluorine-containing alkylene group or a C-C100 fluorine-containing alkylene group and having an ether bond; and A is —COOM, —SO3M, or —OSO3M, wherein M is —H, a metal atom, —NR74, imidazolium optionally having a substituent, pyridinium optionally having a substituent, or phosphonium optionally having a substituent, wherein R7 is H or an organic group, providing that at least one of X, Y, and Z contains a fluorine atom.

Abstract: A method for producing a fluoropolymer, which includes polymerizing a fluoromonomer in an aqueous medium in the presence of a polymer (1), the polymer (1) including a polymerized unit derived from a monomer CX2?CY(—CZ2—O—Rf-A), wherein X is the same or different and is —H or —F; Y is —H, —F, an alkyl group, or a fluorine-containing alkyl group; Z is the same or different and is —H, —F, an alkyl group, or a fluoroalkyl group; Rf is a C1-C40 fluorine-containing alkylene group or a C—C100 fluorine-containing alkylene group and having an ether bond; and A is —COOM, —SO3M, or —OSO3M, wherein M is —H, a metal atom, —NR74, imidazolium optionally having a substituent, pyridinium optionally having a substituent, or phosphonium optionally having a substituent, wherein R7 is H or an organic group, providing that at least one of X, Y, and Z contains a fluorine atom.

Abstract: Producing a resin particle dispersion using an apparatus including: two or more resin particle dispersion production lines each including an emulsification tank in which a resin is subjected to phase inversion emulsification using two or more organic solvents and an aqueous medium to obtain a phase-inverted emulsion, a distillation tank in which the organic solvents are removed from the phase-inverted emulsion by reduced pressure distillation to obtain a resin particle dispersion, and plural distillate collection tanks that collect distillates formed during the reduced pressure distillation according to respective target distillate compositions; and a reusable storage tank that collects and stores a distillate collected in at least one collection tank among the distillates collected in the plural collection tanks in each of the two or more production lines, and delivering the distillate to the emulsification tank in at least one production line to reuse the distillate for producing a phase-inverted emulsion.

Abstract: A method for producing a fluoropolymer which includes polymerizing a fluoromonomer in an aqueous medium in the presence of a surfactant to provide a fluoropolymer, the surfactant being represented by the general formula (1): CR1R2R4—CR3R5—X-A, wherein R1 to R5 are each H or a monovalent substituent, with the proviso that at least one of R1 and R3 represents a group represented by the general formula: —Y—R6 and at least one of R2 and R3 represents a group represented by the general formula: —X-A or a group represented by the general formula: —Y—R6; and A is the same or different at each occurrence and is —COOM, —SO3M, or —OSO3M. Also disclosed is a surfactant for polymerization represented by the general formula (1), a method for producing a fluoropolymer using the surfactant, a composition including a fluoropolymer and the surfactant and a molded body including the composition.

Abstract: A production method of a titanium-niobium composite oxide uses, as a source material, niobium oxide including a mixture of a plurality of crystal forms including a first Nb2O5 structure and at least either of a second Nb2O5 structure and a third Nb2O5 structure. The first Nb2O5 structure has a first peak with 2? from 23.6° to 23.8°, a peak with 2? from 24.8° to 25.0°, and a peak with 2? from 25.4° to 25.6°. The second Nb2O5 structure has a peak with 2? from 23.7° to 23.9°, a peak with 2? from 24.3° to 24.5°, and a peak with 2? from 25.4° to 25.6°. The third Nb2O5 structure has a peak with 2? from 22.5° to 22.7°, a peak with 2? from 28.3° to 28.5°, and a peak with 2? from 28.8° to 29.0°.

Abstract: A titanium-niobium oxide achieves suppressed adulteration with TiO2 and Ti2Nb10O29 and suppressed growth of crystal grains, and an electrode and a lithium-ion secondary cell include such a titanium-niobium oxide. The titanium-niobium oxide contains less than 0.30 at % of an alkali metal element and at least one element selected from the group consisting of Al, Y, La, Ce, Pr, and Sm. A ratio of thea total atomic weight of Al, Y, La, Ce, Pr, and Sm to thea total atomic weight of Ti and Nb is equal to or more than 0.001.

Abstract: A method for producing a resin particle dispersion includes using a resin particle dispersion production apparatus including: two or more resin particle dispersion production lines each including an emulsification tank in which a resin is subjected to phase inversion emulsification using two or more organic solvents and an aqueous medium to thereby obtain a phase-inverted emulsion, a distillation tank in which the organic solvents are removed from the phase-inverted emulsion by reduced pressure distillation to thereby obtain a resin particle dispersion, and plural distillate collection tanks that collect distillates formed during the reduced pressure distillation according to respective target distillate compositions; and a reusable distillate storage tank A that collects and stores a distillate collected in at least one distillate collection tank A among the distillates collected in the plural distillate collection tanks in each of the two or more resin particle dispersion production lines.

Abstract: This composite titanium oxide compound is a composite titanium oxide compound wherein primary particles of an alkali metal titanate compound and primary particles of an alkaline earth metal titanate compound are joined to form secondary particles. The secondary particles have an average particle size of 1 to 80 ?m. When the concentration of elements in the secondary particles is analyzed, a region where the alkaline earth metal is detected covers 50% or more of the surface area in 3% or less of the total number of secondary particles.

Abstract: A titanium oxide compound according to the present invention comprises bronze-type titanium oxide or titanium oxide mainly composed of bronze-type titanium oxide, and contains calcium and/or silicon. The titanium oxide compound contains 0.005 to 2.5 mass % inclusive of calcium or 0.15 to 0.55 mass % inclusive of silicon, or contains 0.005 to 1.2 mass % inclusive of calcium and 0.15 to 0.2 mass % inclusive of silicon, or contains 0.005 to 0.1 mass % inclusive of calcium and 0.15 to 0.5 mass % inclusive of silicon.

Abstract: A spline telescoping shaft includes an inner shaft including a male spline and a tubular outer shaft including a female spline. A resin film is provided on a surface of at least either of both the splines. An addendum modification coefficient e, the number of teeth Z, a module m, a reference pitch circle diameter PCD, a tip circle diameter d1 and a root circle diameter d2 of the male spline and a tip circle diameter D1 and a root circle diameter D2 of the female spline have relations expressed by expressions (1) to (8). m(Z+4)>d1>m(Z+2)??(1), mZ>d2>m(Z?1)??(2), m(Z+4)>D2>m(Z+2)??(3), mZ>D1>m(Z?1)??(4), D2>d1??(5), D1>d2??(6), PCD=mZ??(7), and 0.4<e<1.

Abstract: A titanium oxide compound according to the present invention comprises bronze-type titanium oxide or titanium oxide mainly composed of bronze-type titanium oxide, and contains calcium and/or silicon. The titanium oxide compound contains 0.005 to 2.5 mass % inclusive of calcium or 0.15 to 0.55 mass % inclusive of silicon, or contains 0.005 to 1.2 mass % inclusive of calcium and 0.15 to 0.2 mass % inclusive of silicon, or contains 0.005 to 0.1 mass % inclusive of calcium and 0.15 to 0.5 mass % inclusive of silicon.

Abstract: A titanium oxide compound according to the present invention comprises bronze-type titanium oxide or titanium oxide mainly composed of bronze-type titanium oxide, and contains calcium and/or silicon. The titanium oxide compound contains 0.005 to 2.5 mass % inclusive of calcium or 0.15 to 0.55 mass % inclusive of silicon, or contains 0.005 to 1.2 mass % inclusive of calcium and 0.15 to 0.2 mass % inclusive of silicon, or contains 0.005 to 0.1 mass % inclusive of calcium and 0.15 to 0.5 mass % inclusive of silicon.

Abstract: A telescopic shaft includes a hollow outer shaft, an inner shaft spline-fitted to the outer shaft, a resin coating provided on splines on at least one of the outer and inner shafts, and can be extended and contracted in an axial direction. A method for manufacturing the telescopic shaft includes press-fitting the inner shaft into the outer shaft and sliding one of the outer and inner shafts relative to the other of the outer and inner shafts by reciprocating the one shaft in the axial direction. In the sliding, a frequency according to a sliding speed at which the one shaft is slid relative to the other shaft is set to be lower than a predetermined value at the start of sliding, and the frequency is increased in a continuous or stepwise manner when a sliding load of the one shaft to the other shaft is reduced.

Abstract: A spline telescoping shaft includes an inner shaft including a male spline and a tubular outer shaft including a female spline. A resin film is provided on a surface of at least either of both the splines. An addendum modification coefficient e, the number of teeth Z, a module m, a reference pitch circle diameter PCD, a tip circle diameter d1 and a root circle diameter d2 of the male spline and a tip circle diameter D1 and a root circle diameter D2 of the female spline have relations expressed by expressions (1) to (8). m(Z+4)>d1>m(Z+2) . . . (1), mZ>d2>m(Z?1) . . . (2), m(Z+4)>D2>m(Z+2) . . . (3), mZ>D1>m(Z?1) . . . (4), D2>d1 . . . (5), D1>d2 . . . (6), PCD=mZ . . . (7), and 0.4<e<1.1 . . .

Abstract: A method of manufacturing a spline telescopic shaft, includes a sliding step of sliding in an axial direction an inner shaft manufacturing intermediate member and an outer shaft manufacturing intermediate member, in one of which a resin coating is disposed on splines. In the sliding step, a sliding load of the inner shaft manufacturing intermediate member and the outer shaft manufacturing intermediate member is detected, and sliding is ended at a timing when the detected sliding load reaches a threshold load which is determined based on an initial sliding load detected at a start of the sliding.

Abstract: A titanium oxide compound according to the present invention comprises bronze-type titanium oxide or titanium oxide mainly composed of bronze-type titanium oxide, and contains calcium and/or silicon. The titanium oxide compound contains 0.005 to 2.5 mass % inclusive of calcium or 0.15 to 0.55 mass % inclusive of silicon, or contains 0.005 to 1.2 mass % inclusive of calcium and 0.15 to 0.2 mass % inclusive of silicon, or contains 0.005 to 0.1 mass % inclusive of calcium and 0.15 to 0.5 mass % inclusive of silicon.

Abstract: To provide an affinity carrier with a low pressure loss and a large binding capacity even when the linear flow rate of a solution to be made to pass therethrough is high. Silica spheres, which satisfy the following conditions: (a) the average particle size is from 30 ?m to 40 ?m as measured by a laser light scattering method; (b) the ratio (D10/D90) of the particle size (D10) of smaller 10% cumulative volume to the particle size (D90) of 90% cumulative volume in a particle size distribution as measured by a Coulter counter method, is at most 1.50; and (c) the average pore size is from 85 nm to 115 nm and the pore volume is at least 1.5 mL/g, as measured by a mercury intrusion technique.

Abstract: In a titanium oxide compound according to the present invention, the titanium oxide compound is obtained by eluating potassium of potassium tetratitanate expressed by a general formula K2Ti4O9 and performing thermal processing, and, in an X-ray diffraction spectrum of the potassium tetratitanate obtained by using a Cu—K? ray source, between a peak intensity Ia of a (200) plane, a peak intensity Ic of a (004) plane and a peak intensity Ib of a (31-3) plane, a relationship of Ia>Ib>Ic is satisfied.

Abstract: A telescopic shaft includes a hollow outer shaft, an inner shaft spline-fitted to the outer shaft, a resin coating provided on splines on at least one of the outer and inner shafts, and can be extended and contracted in an axial direction. A method for manufacturing the telescopic shaft includes press-fitting the inner shaft into the outer shaft and sliding one of the outer and inner shafts relative to the other of the outer and inner shafts by reciprocating the one shaft in the axial direction. In the sliding, a frequency according to a sliding speed at which the one shaft is slid relative to the other shaft is set to be lower than a predetermined value at the start of sliding, and the frequency is increased in a continuous or stepwise manner when a sliding load of the one shaft to the other shaft is reduced.

Abstract: A rotary heat engine having a cylinder and a rotor having a rotating shaft rotatably placed in the cylinder. The cylinder has a heat receiving section for supplying heat to the inside of the cylinder and a heat radiating section for radiating heat from the inside. The engine also has an engine section body and an operation liquid storage section. A vaporized gas supply channel and a gas recovery channel communicating with the inside of the cylinder are provided, respectively, on the heat receiving section side and heat radiating section side of the cylinder in the engine section body. The operation liquid storage section is between the vaporized gas supply channel and the gas collection channel in order to aggregate and liquefy recovered gas and is installed such that both channels fluidly communicate with each other. Also, the operation liquid storage section has a heat insulation dam provided with a through hole for preventing backflow of fluid flowing inside.