Abstract: An object of the present invention is to provide a catalyst that enables production of an unsaturated carboxylic acid and/or unsaturated carboxylic acid ester represented by methyl methacrylate with high selectivity. The object is achieved by a catalyst including: one or more elements selected from boron, magnesium, zirconium, hafnium, and titanium; one or more elements selected from alkali metal elements; and silica; the catalyst having a peak height ratio I2/I1 of 0 to 1.2, wherein I1 represents the peak height at 417±10 cm?1, and I2 represents the peak height at 1050±10 cm?1, as obtained by Raman spectroscopy.

Abstract: A method for manufacturing a rechargeable battery includes forming a mixture layer and an insulating layer on an electrode substrate having an edge extending in a specified direction so that an exposed portion where the electrode substrate is exposed extends between the edge and the insulating layer; pressing the mixture layer; and stretching an extension portion, located between the edge and the mixture layer, and the insulating layer in the specified direction. The stretching includes applying a stress greater than or equal to yield stress of the electrode substrate or greater than or equal to 0.2% proof stress of the electrode substrate and less than tensile strength of the electrode substrate to the extension portion, and applying a stress greater than or equal to yield stress of the insulating layer or greater than or equal to 0.2% proof stress of the insulating layer to the insulating layer.

Abstract: An electrolyte solution containing a compound (1) represented by the formula (1), (wherein R101 and R102 are each individually a substituent such as a C1-C7 alkyl group, and the substituent optionally contains at least one divalent to hexavalent hetero atom in a structure or optionally has a structure obtained by replacing at least one hydrogen atom by a fluorine atom or a C0-C7 functional group) and at least one compound (11) selected from compounds such as a compound represented by formula (11-1) (wherein R111 and R112 are the same as or different from each other and are each a hydrogen atom or the like, and R113 is an alkyl group free from a fluorine atom or the like):

Abstract: In an indexable rotary cutting tool of the present invention, a cutting edge portion of an insert includes a peripheral cutting edge, a bottom cutting edge, a cutting edge of a corner R, and a chamfered surface, a radial rake angle (?) of the cutting edge of the corner R has a negative value in an entire edge length region of the cutting edge of the corner R, and the radial rake angle (?) becomes a minimum value at an intermediate portion located between a pair of boundary points (P, Q) in the cutting edge of the corner R.

Abstract: In an indexable rotary cutting tool of the present invention, a cutting edge portion of an insert includes a peripheral cutting edge, a bottom cutting edge, a cutting edge of a corner R, and a chamfered surface, a radial rake angle (?) of the cutting edge of the corner R has a negative value in an entire edge length region of the cutting edge of the corner R, and the radial rake angle (?) becomes a minimum value at an intermediate portion located between a pair of boundary points (P, Q) in the cutting edge of the corner R.

Abstract: An indexable rotary cutting tool and insert is capable of performing a high-accuracy cutting process with high efficiency. A twist angle of an outer peripheral cutting edge of the tool has a positive value, an axial rake angle of the cutting edge of a corner R of the tool at a boundary point between the cutting edge of the corner R and the outer peripheral cutting edge has a positive value, the axial rake angle of the cutting edge of the corner R at a reference point has a negative value, and the radial rake angle at least between the boundary point and the reference point in an entire edge length region of the cutting edge of the corner R has a negative value. The radial rake angle at the reference point is smaller than the radial rake angle at the boundary point.

Abstract: An indexable rotary cutting tool comprising, a twist angle of the outer peripheral cutting edge having a positive value, an axial rake angle of the cutting edge of the corner R at a boundary point between the cutting edge of the corner R and the outer peripheral cutting edge has a positive value, the axial rake angle of the cutting edge of the corner R at the reference point has a negative value, at least the radial rake angle in a region between the boundary point and the reference point in an entire edge length region of the cutting edge of the corner R has a negative value, and the radial rake angle of the cutting edge of the corner R at the reference point is smaller than the radial rake angle of the cutting edge of the corner at the boundary point.

Abstract: A ball-end mill includes arcuate cutting edges each extending from a tip end to a peripherally outermost point along a S shape curve when viewed from the front side, spirally-shaped, peripheral cutting edges each smoothly connected to each arcuate cutting edge, and a convex rake face of each arcuate cutting edge protruding forward in a rotation direction. Each arcuate cutting edge has a radial rake angle satisfying ?<???, where ? is a radial rake angle at a radial angle of 5°, ? is a radial rake angle at a radial angle of 90°, and ? is a radial rake angle at a rotationally most projecting point of the arcuate cutting edge. The radial rake angle has the maximum value at a radial angle in a range of 12-40° and continuously decreases in a range from the rotationally most projecting point to the peripherally outermost point.

Abstract: A prepreg provided with a first resin layer and a second resin layer which is formed on this first resin layer, wherein the first resin layer is formed by a first resin composition, the second resin layer is a layer which comprises a resin layer which is formed by a second resin composition which is different from the first resin composition and in which a fiber base material is contained, the second resin layer is provided with a fiber base material-containing layer which contains the fiber base material, an A layer which is positioned at an opposite side of the first resin layer side of the fiber base material-containing layer and which does not contain the fiber base material, and a B layer which is positioned at the first resin layer side of the fiber base material-containing layer and which does not contain the fiber base material, and said B layer has a thickness which is smaller than the thickness of the first resin layer, is provided.

Abstract: A prepreg with a first resin layer and a second resin layer which is formed on this first resin layer, wherein the first resin layer is formed by a first resin composition, the second resin layer includes a resin layer which is formed by a second resin composition which is different from the first resin composition and in which a fiber base material is contained, the second resin layer is provided with a fiber base material-containing layer, an A layer which is positioned at an opposite side of the first resin layer side of the fiber base material-containing layer and does not contain fiber base material, and a B layer which is positioned at the first resin layer side of the fiber base material-containing layer and which does not contain the fiber base material, and said B layer has a thickness smaller than the thickness of the first resin layer.

Abstract: A ball-end mill includes arcuate cutting edges each extending from a tip end to a peripherally outermost point along a S shape curve when viewed from the front side, spirally-shaped, peripheral cutting edges each smoothly connected to each arcuate cutting edge, and a convex rake face of each arcuate cutting edge protruding forward in a rotation direction. Each arcuate cutting edge has a radial rake angle satisfying ?<???, where ? is a radial rake angle at a radial angle of 5°, ? is a radial rake angle at a radial angle of 90°, and ? is a radial rake angle at a rotationally most projecting point of the arcuate cutting edge. The radial rake angle has the maximum value at a radial angle in a range of 12-40° and continuously decreases in a range from the rotationally most projecting point to the peripherally outermost point.

Abstract: A prepreg with a first resin layer and a second resin layer which is formed on this first resin layer, wherein the first resin layer is formed by a first resin composition, the second resin layer includes a resin layer which is formed by a second resin composition which is different from the first resin composition and in which a fiber base material is contained, the second resin layer is provided with a fiber base material-containing layer, an A layer which is positioned at an opposite side of the first resin layer side of the fiber base material-containing layer and does not contain fiber base material, and a B layer which is positioned at the first resin layer side of the fiber base material-containing layer and which does not contain the fiber base material, and said B layer has a thickness smaller than the thickness of the first resin layer.

Abstract: A curable resin composition which contains an epoxy compound (A1), active ester compound (A2), filler (A3), and alicyclic olefin polymer (A4) containing groups which have reactivity with respect to epoxy groups, wherein a ratio of content of the alicyclic olefin polymer (A4) to 100 parts by weight of said epoxy compound (A1) is 2 to 50 parts by weight is provided. According to the present invention, a curable resin composition which is excellent in resin fluidity and which can give a cured article which is low in linear expansion and is excellent in wire embedding flatness, electrical characteristics, and heat resistance can be provided.

Abstract: A radio-controlled device is provided that has improved steering responsivity. The radio-controlled device consists of a transmitter, a receiver, and digital servomechanisms. A PPM signal format of signals transmitted from the transmitter is shown in FIG. 4(a). Signals having time widths (T1, T2, t3) proportional to displacements of a transmitter joystick are distributed to drive the servomechanisms. As shown in FIG. 4(b), the transmission side transmits, to a final channel CH3, a signal having a time width of T3 (=t3+R), being the sum of the time width t3 and a reset reference value R (Nt3?Nt1). The receiver side subtracts the reset reference value R, thus restoring it to the original time width t3. By adding the reset reference value R, the minimum value L3 of a signal in the final channel is larger than the maximum value V1 of other signal.

Abstract: A radio-controlled device is provided that has improved steering responsivity. The radio-controlled device consists of a transmitter, a receiver, and digital servomechanisms. A PPM signal format of signals transmitted from the transmitter is shown in FIG. 4(a). Signals having time widths (T1, T2, t3) proportional to displacements of a transmitter joystick are distributed to drive the servomechanisms. As shown in FIG. 4(b), the transmission side transmits, to a final channel CH3, a signal having a time width of T3 (=t3 +R), being the sum of the time width t3 and a reset reference value R (Nt3−Nt1). The receiver side subtracts the reset reference value R, thus restoring it to the original time width t3. By adding the reset reference value R, the minimum value L3 of a signal in the final channel is larger than the maximum value V1 of other signal.