Abstract: An aqueous dispersion containing polylactic acid as a dispersoid and polyvinyl alcohols as a dispersant is improved to impart more excellent heat-sealing properties and water-resisting properties to a resulting polylactic acid film. An aqueous dispersion for forming a film containing 3 g/m2 (dry weight) or more of polylactic acid to a substrate, the aqueous dispersion including polylactic acid, polyvinyl alcohols, and water, in which the polyvinyl alcohols have an average saponification degree of 60.0 to 82.0 mol %, and a blending ratio (mass ratio) of the polylactic acid and the polyvinyl alcohols is 98/2 to 90/10.

Abstract: A work transfer system includes a robot having a hand which holds a workpiece and a sensor which can detect external force acting on the hand, a balancer connected to the hand and can generate lifting force for lifting the hand in a vertically upward direction, a shape measuring device which conducts measuring of a shape of the workpiece, and a controller controlling the robot and the balancer based on the shape of the workpiece, and the controller adjusts a holding position of the workpiece by the hand based on the shape, and controls the lifting force so that an absolute value of the external force in the vertical direction detected by the sensor becomes equal to or smaller than a predetermined first threshold when the workpiece is held at the adjusted holding position and lifted.

Abstract: A screw fastening system includes: an electric motor; a holding device for holding the electric motor; a support member mounted to a drive shaft of the electric motor; a screw fastening machine supported by the support member, and capable of executing a screw fastening operation with pulsed fastening control; and a motor control unit for controlling the electric motor to reduce a fastening-torque reaction force, caused by the screw fastening operation with pulsed fastening control executed by the screw fastening machine, with respect to the holding device.

Abstract: The present invention relates to improvement of blocking resistance when a water-based dispersion containing polylactic acid as a dispersoid is used as a heat sealant. Provided is an aqueous dispersion obtained by dispersing a dispersoid containing polylactic acid and carnauba wax in a water-based dispersion medium, in which 1 to 14% by mass of the carnauba wax is blended relative to a mass of the polylactic acid.

Abstract: There is provided a method for producing isobutylene, in which isobutylene is produced from isobutanol with a high selectivity while suppressing a decrease in the isobutanol conversion rate under pressure. In the method for producing isobutylene according to the present invention, a raw material gas containing isobutanol is brought into contact with a catalyst to produce isobutylene from isobutanol, the method including bringing the raw material gas containing isobutanol into contact with a catalyst at a linear velocity of 1.20 cm/s or more under a pressure of 120 kPa or more in terms of absolute pressure to produce isobutylene from isobutanol.

Abstract: There is provided a catalyst having an average electronegativity of 2.1 or more and 2.8 or less.

Abstract: A work transfer system includes a robot having a hand which holds a workpiece and a sensor which can detect external force acting on the hand, a balancer connected to the hand and can generate lifting force for lifting the hand in a vertically upward direction, a shape measuring device which conducts measuring of a shape of the workpiece, and a controller controlling the robot and the balancer based on the shape of the workpiece, and the controller adjusts a holding position of the workpiece by the hand based on the shape, and controls the lifting force so that an absolute value of the external force in the vertical direction detected by the sensor becomes equal to or smaller than a predetermined first threshold when the workpiece is held at the adjusted holding position and lifted.

Abstract: There is provided a catalyst that enables the production of isobutylene with a high selectivity in the production of isobutylene by dehydration of isobutanol. The catalyst according to the present invention contains at least one metal selected from Group 6 to Group 14 metal elements in Period 4 to Period 6 of the periodic table, in alumina which includes alumina consisting of one or more crystal phases of a monoclinic crystal phase, a tetragonal crystal phase, and a cubic crystal phase.

Abstract: A resin back door includes a resin inner panel, a resin lower outer panel, and a metal reinforcing member disposed in a hollow space defined by the inner panel and the lower outer panel. In the resin back door, the reinforcing member has an annular shape extending along an outer peripheral edge of the inner panel, and includes right and left reinforcing members and a lower-side reinforcing member which are separated from each other and fixed to the inner panel with an adhesive leaving a gap. The reinforcing members are connected by using right and left corner connecting members and an upper connecting member to constitute the reinforcing member.

Abstract: A resin back door includes a resin inner panel, a resin lower outer panel, and a metal reinforcing member disposed in a hollow space defined by the inner panel and the lower outer panel. In the resin back door, the reinforcing member has an annular shape extending along an outer peripheral edge of the inner panel, and includes right and left reinforcing members and a lower-side reinforcing member which are separated from each other and fixed to the inner panel with an adhesive leaving a gap. The reinforcing members are connected by using right and left corner connecting members and an upper connecting member to constitute the reinforcing member.

Abstract: Provided is a method that produces a saturated aldehyde from a 1,2-alkanediol in high yield. Disclosed is a method for producing a saturated aldehyde from a 1,2-alkanediol in the presence of a regular mesoporous material.

Abstract: Provided is a method that produces a saturated aldehyde from a 1,2-alkanediol in high yield. Disclosed is a method for producing a saturated aldehyde from a 1,2-alkanediol in the presence of a regular mesoporous material.

Abstract: Provided is a pressure-sensitive adhesive sheet formed of at least two layers, including a rubber-based pressure-sensitive adhesive layer (A) and an acrylic pressure-sensitive adhesive layer (B) that are directly laminated, in which the pressure-sensitive adhesive sheet has a large interlayer peel strength. The pressure-sensitive adhesive sheet is a pressure-sensitive adhesive sheet formed of at least two layers, including a rubber-based pressure-sensitive adhesive layer (A) and an acrylic pressure-sensitive adhesive layer (B) that are directly laminated, in which the pressure-sensitive adhesive sheet has an interlayer peel strength upon peeling of the acrylic pressure-sensitive adhesive layer (B) from the rubber-based pressure-sensitive adhesive layer (A) under conditions of a measurement temperature of 23° C., a tension speed of 0.3 m/min, and a peel angle of 180° C. of 2.0 N/20 mm or more.

Abstract: The present invention provides an apparatus for inflation extrusion molding of pressure-sensitive adhesive sheet, including: one or a plurality of extruders; a die into which one or a plurality of resin materials are respectively introduced and which extrudes from an ejection opening the resin materials into an inflated cylindrical shape having a predetermined diameter in accordance with an inflation method; and two stabilizers facing each other at a predetermined angle so as to upwardly approach each other, and defining a space therebetween through which the cylindrically-shaped resin materials extruded from the die are passed to be deformed into a pressure-sensitive adhesive sheet in a flattened elliptical shape having a predetermined width, in which the stabilizers each have a plurality of air floating portions each of which blows air toward the resin materials; and the stabilizers rotate in one direction around the central axis of the cylindrically-shaped resin materials.

Abstract: The present invention provides an apparatus for inflation extrusion molding of pressure-sensitive adhesive sheet, including: one or a plurality of extruders; a die into which one or a plurality of resin materials are respectively introduced and which extrudes from an ejection opening the resin materials into an inflated cylindrical shape having a predetermined diameter in accordance with an inflation method; and two stabilizers facing each other at a predetermined angle so as to upwardly approach each other, and defining a space therebetween through which the cylindrically-shaped resin materials extruded from the die are passed to be deformed into a pressure-sensitive adhesive sheet in a flattened elliptical shape having a predetermined width, in which the stabilizers each have a plurality of air floating portions each of which blows air toward the resin materials; and the stabilizers rotate in one direction around the central axis of the cylindrically-shaped resin materials.

Abstract: A pressure-sensitive adhesive tape according to an embodiment of the present invention includes, a pressure-sensitive adhesive layer; and a base layer, wherein: the pressure-sensitive adhesive layer contains an amorphous propylene- (1-butene) copolymer polymerized by using a metallocene catalyst, the amorphous propylene-(1-butene) copolymer having a weight-average molecular weight (Mw) of 200,000 or more and a molecular weight distribution (Mw/Mn) of 2 or less; and the base layer contains an ethylene-vinyl acetate copolymer.

Abstract: A pressure-sensitive adhesive tape according to an embodiment of the present invention includes, a heat-resistant layer; a base layer; and a pressure-sensitive adhesive layer in this order, wherein: the pressure-sensitive adhesive tape has an elastic modulus, i.e., Young's modulus at 25° C. of 150 MPa or less; and the heat-resistant layer contains a polypropylene-based resin polymerized by using a metallocene catalyst, the polypropylene-based resin having a melting point of 110° C. to 200° C. and a molecular weight distribution “Mw/Mn” of 3 or less.

Abstract: The present invention provides an apparatus for inflation extrusion molding of pressure-sensitive adhesive sheet, the apparatus including: one or a plurality of extruders; a die into which one or a plurality of resin materials including at least a resin material for forming a pressure-sensitive adhesive layer and extruded respectively from the extruders are respectively introduced and which extrudes from an ejection opening the resin materials into an inflated cylindrical shape having a predetermined diameter in accordance with an inflation method; and two stabilizers facing each other at a predetermined angle so as to upwardly approach each other, and defining a space therebetween through which the cylindrically-shaped resin materials extruded from the die are passed to be deformed into a pressure-sensitive adhesive sheet in a flattened elliptical shape having a predetermined width, in which the stabilizers each have a plurality of air floating portions each of which blows air toward the resin materials; and

Abstract: The present invention provides an apparatus for inflation extrusion molding of pressure-sensitive adhesive sheet, the apparatus including: one or a plurality of extruders; a die into which one or a plurality of resin materials including at least a resin material for forming a pressure-sensitive adhesive layer and extruded respectively from the extruders are respectively introduced and which extrudes from an ejection opening the resin materials into an inflated cylindrical shape having a predetermined diameter in accordance with an inflation method; and two stabilizers facing each other at a predetermined angle so as to upwardly approach each other, and defining a space therebetween through which the cylindrically-shaped resin materials extruded from the die are passed to be deformed into a pressure-sensitive adhesive sheet in a flattened elliptical shape having a predetermined width, in which the stabilizers each have a plurality of air floating portions each of which blows air toward the resin materials; and