Abstract: A pyridine alcohol derivative represented by General Formula III (where A represents a divalent organic group which may contain one to three oxygen atoms, nitrogen atoms and/or sulfur atoms, wherein A may form a 5-, 6-, 7-, or 8-membered ring together with two bonded carbon atoms, where said ring may form a condensed ring with one or more additional rings; R6 represents a hydrogen atom, —CHR1R2, or an alkenyl group, an aryl group or an aralkyl group which may be substituted; R1 and R2 each independently represent a hydrogen atom or a hydrocarbon group which may be substituted; and R represents a hydrogen atom, an alkyl group, an alkenyl group, an aryl group or an aralkyl group which may be substituted), is produced by: reacting a pyridine ester derivative represented by General Formula I-1

Abstract: The present invention relates to a continuous casting apparatus for continuously casting molten metal. More particularly, the present invention provides a method and an apparatus for controlling a surface level of molten metal in a mold when molten metal is continuously cast. The continuous casting apparatus of the invention comprises: a mold in which molten metal is poured and solidified; and an eddy current type molten metal surface level sensor for detecting a molten metal surface level in the mold. In the continuous casting apparatus having an electromagnetic coil arranged in such a manner that the electromagnetic coil surrounds the mold and also having an electric power supply for generating a pulse magnetic field from the electromagnetic coil, there are provided a mechanism for taking out a pulse trigger signal corresponding to the magnetic field from the electric power supply, and a mechanism for controlling a time of detecting a surface of molten metal by the molten metal level sensor.

Abstract: A pyridine alcohol derivative represented by General Formula III 1

Abstract: A pyridine alcohol derivative represented by General Formula III (where A represents a divalent organic group which may contain one to three oxygen atoms, nitrogen atoms and/or sulfur atoms, wherein A may form a 5-, 6-, 7-, or 8-membered ring together with two bonded carbon atoms, where said ring may form a condensed ring with one or more additional rings; R5 represents a hydrogen atom, —CHR1R2, or an alkenyl group, an aryl group or an aralkyl group which may be substituted; R1 and R2 each independently represent a hydrogen atom or a hydrocarbon group which may be substituted; and R6 represents a hydrogen atom, an alkyl group, an alkenyl group, an aryl group or an aralkyl group which may be substituted), is produced by: reacting a pyridine ester derivative represented by General Formula I-1  (where Z1 represents —COX; X represents an alkoxyl group, an alkenyloxy group, an aryloxy group or an aralkyloxy group which may be substituted; and A is the same as a

Abstract: According to the present invention, provided are (1) a process for the preparation of 2-chloro-5-chloromethyl-1,3-thiazole, by reacting 3- chloro-1-isothiocyanato-1-propene with a chlorinating agent, (2) a process for the preparation of 3-chloro-1-isocyanato-1-propene, by rearranging 3-chloro-1-thiocyanato-2-propene in the presence of a salt of one or more than one metal selected from the group consisting of metals belonging to Group 2A, Group 7A, Group 8 and Group 1B of the long-form periodic table, and (3) a process for the preparation of 3-chloro-1-thiocyanato-2-propene, by reacting 1,3-dichloropropene and a thiocyanate salt (a) in the presence of water, (b) in the presence of an organic solvent which is water-soluble and has a boiling point of 150° C. or lower, or (c) in an organic solvent in the presence of a phase transfer catalyst.

Abstract: According to the present invention, provided are (1) a process for the preparation of 2-chloro-5-chloromethyl-1,3-thiazole, by reacting 3-chloro-1-isothiocyanato-1-propene with a chlorinating agent, (2) a process for the preparation of 3-chloro-1-isocyanato-1-propene, by rearranging 3-chloro-1-thiocyanato-2-propene in the presence of a salt of one or more than one metal selected from the group consisting of metals belonging to Group 2A, Group 7A, Group 8 and Group 1B of the long-form periodic table, and (3) a process for the preparation of 3-chloro-1-thiocyanato-2-propene, by reacting 1,3-dichloropropene and a thiocyanate salt (a) in the presence of water, (b) in the presence of an organic solvent which is water-soluble and has a boiling point of 150° C. or lower, or (c) in an organic solvent in the presence of a phase transfer catalyst.

Abstract: A pyridine alcohol derivative represented by General Formula III ##STR1## (where A represents a divalent organic group which may contain one to three oxygen atoms, nitrogen atoms and/or sulfur atoms, wherein A may form a 5-, 6-, 7-, or 8-membered ring together with two bonded carbon atoms, where said ring may form a condensed ring with one or more additional rings; R.sup.5 represents a hydrogen atom, --CHR.sup.1 R.sup.2, or an alkenyl group, an aryl group or an aralkyl group which may be substituted; R.sup.1 and R.sup.2 each independently represent a hydrogen atom or a hydrocarbon group which may be substituted; and R.sup.6 represents a hydrogen atom, an alkyl group, an alkenyl group, an aryl group or an aralkyl group which may be substituted), is produced by:reacting a pyridine ester derivative represented by General Formula I-1 ##STR2## (where Z.sup.

Abstract: According to the present invention, provided are(1) a process for the preparation of 2-chloro-5-chloromethyl-1,3-thiazole, by reacting 3-chloro-1-isothiocyanato-1-propene with a chlorinating agent,(2) a process for the preparation of 3-chloro-1-isocyanato-1-propene, by rearranging 3-chloro-1-thiocyanato-2-propene in the presence of a salt of one or more than one metal selected from the group consisting of metals belonging to Group 2A, Group 7A, Group 8 and Group 1B of the long-form periodic table, and(3) a process for the preparation of 3-chloro-1-thiocyanato-2-propene, by reacting 1,3-dichloropropene and a thiocyanate salt(a) in the presence of water,(b) in the presence of an organic solvent which is water-soluble and has a boiling point of 150.degree. C. or lower, or(c) in an organic solvent in the presence of a phase transfer catalyst.

Abstract: According to the present invention, provided are(1) a process for the preparation of 2-chloro-5-chloromethyl-1,3-thiazole, by reacting 3-chloro-1-isothiocyanato-1-propene with a chlorinating agent,(2) a process for the preparation of 3-chloro-1-isocyanato-1-propene, by rearranging 3-chloro-1-thiocyanato-2-propene in the presence of a salt of one or more than one metal selected from the group consisting of metals belonging to Group 2A, Group 7A, Group 8 and Group 1B of the long-form periodic table, and(3) a process for the preparation of 3-chloro-1-thiocyanato-2-propene, by reacting 1,3-dichloropropene and a thiocyanate salt(a) in the presence of water,(b) in the presence of an organic solvent which is water-soluble and has a boiling point of 150.degree. C. or lower, or(c) in an organic solvent in the presence of a phase transfer catalyst.

Abstract: A proposed computer input device for transmitting the displacement data representing the quantity and direction of the movement of a cursor to a computer is operable in a narrow space and easily portable. The input device is provided with a pressure sensitive pad composed of a conductive layer formed on the underside of a flexible sheet and a resistor layer formed on the upper face of a substrate at a predetermined interval from the conductive layer. When the flexible sheet is depressed, the conductive layer contacts the resistor layer at the depressed position. In a control circuit connected to the conductive layer and the resistor layer, when the contact of the conductive layer with the resistor layer is detected, a voltage of 5V is applied alternately in a horizontal direction and a vertical direction on the surface of the resistor layer. The depressed position on the pressure sensitive pad is sequentially computed from the voltage value produced on the conductive layer when the voltage is applied.

Abstract: Method for producing printed circuit board using a photocurable resin laminate comprising a support and a photocurable resin layer disposed on one surface of said support, said photocurable resin layer having:(a) a viscosity of from 10.sup.4 to 5.times.10.sup.5 poises as measured at 90.degree. C.;(b) a thickness of from 30 to 150 .mu.m; and(c) an ultraviolet ray transmittance of from 40 to 95% with respect to ultraviolet rays having a wavelength of 365 nm.When this photocurable resin laminate is laminated under pressure on both surfaces of a metal-clad insulting base board having through-holes of an inner diameter smaller than 0.

Abstract: A magnetic head comprising a magnetic path and a vertically magnetizable film. The magnetic path contains a first gap facing a magnetic recording medium and a second gap. The vertically magnetizable film is formed across the second gap on the principal plane or outer circumference of the magnetic path. A linearly polarized light beam is irradiated onto the vertically magnetizable film and the resulting reversal of magnetization in the vertically magnetizable film is detected through the use of a polar Kerr effect. This scheme allows data to be reproduced with sufficient sensitivity from tracks of very small widths.

Abstract: A pneumatic tire having improved wet performances is disclosed, which comprises a tread of a rib type pattern divided into three or more ribs by at least two circumferential grooves so that the tread defines both side regions and the remaining central region by a pair of the circumferential grooves arranged close to both side ends of the tread and is provided at each region with sipes. In this type of the tire, each of the sipes arranged on both side regions is inclined at a small angle with respect to the transverse line of the tire and each of the sipes arranged on the remaining central region is inclined at a small angle with respect to the circumferential line of the tire.

Abstract: Disclosed is a soft magnetic thin film which has superior soft magnetic characteristics and high saturation magnetic flux density. The magnetic thin film is formed by physical vapor deposition process and composed of Fe, Ga, and Si with optional inclusion of Co, Ru, or Cr.

Abstract: A magnetic alloy thin film consisting essentially of a first Fe-Al-Si or Fe-Ni alloy thin film of high permeability and a second Fe-Si alloy thin film directly formed on the first thin film and having high saturation magnetic flux density. The ratio in thickness of the first and second films is preferably in the range of from 1:0.1 to 2.

Abstract: An aromatic polyether ketone comprising 5 to 100 mole % of units having the formula: ##STR1## and 0 to 95 mole % of units having the formula: ##STR2## and having a reduced viscosity of about 0.1 to about 4.0 (30.degree. C.), is novel and excellent in the properties such as heat resistance, chemical resistance and relatively easily melt processable. When at least one terminal group of the polymer is capped with an inert aromatic group, the properties are further improved.

Abstract: A magnetic structure having improved permeability characteristics at very high frequencies and comprising a plurality of magnetic metal layers, together with electrically insulating layers which are interposed between successive magnetic metal layers to form a laminate therewith, and at least one conductive strip electrically connecting together at least two of the magnetic metal layers, the conductive strip being of lesser width than the surface on which it is located, and serving to reduce eddy current losses.

Abstract: Annealing method for an amorphous magnetic alloy including the steps of preparing an amorphous magnetic alloy film, and annealing the amorphous magnetic alloy film at an elevated temperature lower than Curie temperature and crystallization temperature of the amorphous magnetic alloy film under an application of a repetition of alternately applied a first magnetic field and a second magnetic field, in which the first magnetic field is applied along one direction in a major surface of the amorphous magnetic alloy film for a predetermined period, and the second magnetic field is applied along a second direction perpendicular to the one direction in the major surface of the amorphous magnetic alloy film for the predetermined period.

Abstract: A heavy duty pneumatic low-sectional radial tire having an aspect ratio of not more than 0.8 is disclosed, which comprises a pair of bead portions, a pair of side portions, a tread portion extending across the side portions, and a reinforcement for a tire casing composed of at least one carcass ply extending across two bead cores and turning up around the bead core and containing cords embedded therein in a substantially radial direction of the tire, each cord having a modulus of not less than 4,000 kg/mm.sup.2, and a belt of at least two layers, each layer containing metal cords embedded therein, superimposed around a crown portion of the carcass and crossing with each other at a relatively small angle with respect to the equatorial line of the tire. In this tire, a carcass line of the tire casing at a temporarily mounted posture on a normal rim under an internal pressure of 0.5 kg/cm.sup.