Abstract: The present invention provides a chlorinated polyvinyl chloride that enables excellent continuous productivity in molding and that enables a molded article to have both processability and unevenness-preventing properties. Provided is a chlorinated polyvinyl chloride having an endothermic peak start temperature (L) and an endothermic peak end temperature (H) that satisfy the following expression (1) in endothermic peak measurement using a differential scanning calorimeter (DSC): 41° C.?H?L?98° C. (1).

Abstract: A device for producing a tubular single crystal comprises a crucible, a heating means, a die disposed in the crucible, having an annular slit, and a pulling-up means. The upper surface of the die includes an upward slope that increases in height from the annular slit to an inner diameter side and an outer diameter side, respectively, progressing away from the annular slit, wherein the maximum height of the slope on the inner diameter side (H1) is greater than the maximum height of the slope on the outer diameter side (H2) and the difference (H1?H2) is 0.1 mm or more and less than 7.5 mm.

Abstract: A device for producing a tubular single crystal comprises a crucible, a heating means, a die disposed in the crucible, having an annular slit, and a pulling-up means. The upper surface of the die includes an upward slope that increases in height from the annular slit to an inner diameter side and an outer diameter side, respectively, progressing away from the annular slit, wherein the maximum height of the slope on the inner diameter side (H1) is greater than the maximum height of the slope on the outer diameter side (H2) and the difference (H1?H2) is 0.1 mm or more and less than 7.5 mm.

Abstract: A single crystal of the present disclosure is a plate-shaped body having two main surfaces that are opposite to each other, and has bubbles arranged in a plurality of line shapes parallel to the main surface in a region within a depth of 0.5 mm from either one of the main surfaces. Additionally, a single crystal of the present disclosure is a plate-shaped body having two main surfaces that are opposite to each other, and has bubbles arranged in a plurality of line shapes parallel to the main surface within a region from either one of the main surfaces to ¼ of the thickness which is a distance between the main surfaces.

Abstract: A component having a rectangular parallelepiped shape where the component includes a pair of rectangular end surfaces which are opposite to each other and four side surfaces which connect the end surfaces to each other is stored in a cavity which penetrates between main surfaces of a conveyance member, and the conveyance member is moved relative to a base. Along with the relative movement of the conveyance member, the component having the end surface brought into contact with a reference surface has the end surface brought into contact with an inclined surface of an engaging groove and is inclined.

Abstract: A conveyance apparatus which can suppress the occurrence of a defect on a work caused due to the entrance of a corner portion of the work into a hole portion formed on a conveyance surface of a base.

Abstract: A depth of a cavity formed in a storing member is set to a depth which allows a portion of an electronic component to project from the cavity in a state where the electronic component is stored in the cavity. A storing member includes guide portions each of which is a space communicating with the cavity and configured to guide the electronic component into the cavity. A guide portion is formed such that a guide opening portion which is an opening portion of the guide portion is larger than an opening portion of the cavity and the opening portion of the cavity falls within a region of the guide opening portion as viewed in a depth direction of the cavity. A space formed of the cavity and the guide portion is configured to store an entire electronic component in the inside thereof.

Abstract: An attitude changing apparatus which can change an attitude of a component with certainty without damaging the component. The component has a rectangular parallelepiped shape where a pair of rectangular end surfaces opposite to each other are connected to each other by four side surfaces. The component is stored in a cavity which penetrates between main surfaces of a conveyance member, the conveyance member is moved relative to a base, and the component is made to pass through an engaging groove formed on a reference surface of the base.

Abstract: An aligning and feeding device which accommodates a component including a pair of rectangular end surfaces oppositely facing each other and having a longitudinal direction extending between the end surfaces of the component in a cavity formed in an accommodating member. The component is accommodated in the cavity by aligning a direction of the component such that the longitudinal direction of the component extends parallel to a main surface of the accommodating member.

Abstract: A conveyance apparatus which can suppress the occurrence of a defect on a work caused due to the entrance of a corner portion of the work into a hole portion formed on a conveyance surface of a base.

Abstract: A depth of a cavity formed in a storing member is set to a depth which allows a portion of an electronic component to project from the cavity in a state where the electronic component is stored in the cavity. A storing member includes guide portions each of which is a space communicating with the cavity and configured to guide the electronic component into the cavity. A guide portion is formed such that a guide opening portion which is an opening portion of the guide portion is larger than an opening portion of the cavity and the opening portion of the cavity falls within a region of the guide opening portion as viewed in a depth direction of the cavity. A space formed of the cavity and the guide portion is configured to store an entire electronic component in the inside thereof.

Abstract: An attitude changing apparatus which can change an attitude of a component with certainty without damaging the component. The component has a rectangular parallelepiped shape where a pair of rectangular end surfaces opposite to each other are connected to each other by four side surfaces. The component is stored in a cavity which penetrates between main surfaces of a conveyance member, the conveyance member is moved relative to a base, and the component is made to pass through an engaging groove formed on a reference surface of the base.

Abstract: A component having a rectangular parallelepiped shape where the component includes a pair of rectangular end surfaces which are opposite to each other and four side surfaces which connect the end surfaces to each other is stored in a cavity which penetrates between main surfaces of a conveyance member, and the conveyance member is moved relative to a base. Along with the relative movement of the conveyance member, the component having the end surface brought into contact with a reference surface has the end surface brought into contact with an inclined surface of an engaging groove and is inclined.

Abstract: An aligning and feeding device which accommodates a component including a pair of rectangular end surfaces oppositely facing each other and having a longitudinal direction extending between the end surfaces of the component in a cavity formed in an accommodating member. The component is accommodated in the cavity by aligning a direction of the component such that the longitudinal direction of the component extends parallel to a main surface of the accommodating member.

Abstract: Chlorinated vinyl chloride resin may be produced through a heat chlorination reaction of an aqueous suspension of vinyl chloride resin in a hermetically sealable reaction vessel, the method including carrying out a first heat chlorination reaction while raising the temperature of an aqueous suspension of a vinyl chloride resin powder to a predetermined temperature within the range of 85° C. to 95° C., and subsequently carrying out a second heat chlorination reaction at the predetermined temperature.

Abstract: Chlorinated vinyl chloride resin may be produced through a heat chlorination reaction of an aqueous suspension of vinyl chloride resin in a hermetically sealable reaction vessel, the method including carrying out a first heat chlorination reaction while raising the temperature of an aqueous suspension of a vinyl chloride resin powder to a predetermined temperature within the range of 85° C. to 95° C., and subsequently carrying out a second heat chlorination reaction at the predetermined temperature.

Abstract: An object of the present invention is to provide a chlorinated vinyl chloride-based resin with few unstable structures and excellent thermal stability, and a molding article. The chlorinated vinyl chloride-based resin of the invention is an resin in which a chlorine content is 65 wt % or higher, and less than 69 wt %, —CCl2— is in an amount of 6.2 mol % or less, —CHCl— is in an amount of 58.0 mol % or higher, and —CH2— is in an amount of 35.8 mol % or less contained in a molecular structure.

Abstract: An electroconductive resin composition which exhibits excellent moldability and electric conductivity, and is produced at low costs. The electroconductive resin composition contains a zinc-based metal powder, low melting metal which melts upon molding, and thermoplastic resin. The zinc-based metal powder having a large surface area captures the molten low melting metal to prevent the phase separation thereof from both the resin and zinc-based metal powder. The zinc-based metal powder has a round configuration, as compared to that of fiber so as not to damage the fluidity of the resin greatly. Thus, the resultant electroconductive resin composition is excellent in moldability, and can be produced at low costs.

Abstract: A pipe fitting includes a slider disposed in an insertion hole of a main body so as to be axially moved and includes a pressed portion which a falling-off preventing flange of a pipe abuts so that the slider is pressed axially when the pipe is inserted into the insertion hole. A fitting checker includes a pair of spreading legs having respective claws, the fitting checker being detachably attached to the main body so that the legs hold the main body. The claws engage the body and the slider so that the fitting checker is not allowed to be detached from the body when the legs are closed. The legs are spread so as to release the claws from engagement with the body and the slider so that the fitting checker is allowed to be detached from the body. Releasing protrusions are formed to protrude from inside portions of the legs of the fitting checker, the releasing protrusions being pressed so that the legs are elastically deformed in respective opening directions.

Abstract: A connector includes a body and a clip for fitting on the body. The body has a hose connecting portion and a pipe receiving portion. The pipe receiving portion is adapted to receive a pipe therein and includes a clip fitting part. The clip fitting part has an engaging hole for engagement with an engaging claw formed on the clip. The engaging claw moves from a protruded position for preventing removal of the pipe to a withdrawn position for permitting removal of the pipe from the pipe receiving portion as the operator forces the clip to be enlarged. An enlargement restraining device is provided that is operable to restrain the enlargement of the clip within a predetermined range, so that the clip can reliably resiliently return to the protruded position when the clip is released after the pipe has been removed from the pipe receiving portion.