Abstract: A hopper charged with a powder material, a screw arranged below the hopper and exposed at a supply port formed at the bottom of the hopper, and a rolling element in contact with the screw at the supply port are provided. The rolling element is larger than a space between end portions of the supply port and a screw groove of the screw.

Abstract: The method for manufacturing a molded product of the present disclosure includes a deposition step of depositing a mixture including a fiber and a complex, a humidification step of humidifying the mixture, and a molding step of heating and pressurizing the humidified mixture to obtain a molded product. The complex includes a composite particle in which a binding material particle containing a binding material that exerts a binding force for binding the individual fibers together by being applied with moisture and an inorganic particle are included as a unit.

Abstract: A hopper charged with a powder material, a screw arranged below the hopper and exposed at a supply port formed at the bottom of the hopper, and a rolling element in contact with the screw at the supply port are provided. The rolling element is larger than a space between end portions of the supply port and a screw groove of the screw.

Abstract: A method of manufacturing an electrophoretic particle is a method of manufacturing an electrophoretic particle including a particle and a particle surface treatment agent which is bonded to the particle, the method including preparing a mixture containing a plurality of the particles, the particle surface treatment agent, an unreacted product of a raw material used at the time of generating the particle surface treatment agent, and a reaction by-product generated at the time of generating the particle surface treatment agent, the mixture having a content of the particle surface treatment agent which is set to be equal to or greater than 70% by weight in the mixture except for the plurality of particles; and bonding the particle surface treatment agent to a surface of the particle in the mixture.

Abstract: A method of manufacturing an electrophoretic particle is a method of manufacturing an electrophoretic particle including a particle and a particle surface treatment agent which is bonded to the particle, the method including preparing a mixture containing a plurality of the particles, the particle surface treatment agent, an unreacted product of a raw material used at the time of generating the particle surface treatment agent, and a reaction by-product generated at the time of generating the particle surface treatment agent, the mixture having a content of the particle surface treatment agent which is set to be equal to or greater than 70% by weight in the mixture except for the plurality of particles; and bonding the particle surface treatment agent to a surface of the particle in the mixture.

Abstract: An electrophoresis dispersion liquid according to the aspect of the invention contains at least one type of electrophoretic particles and a dispersion medium and, in the electrophoresis dispersion liquid, the content of the electrophoretic particles is 10 weight % or more to 30 weight % or less. Furthermore, the electrophoretic particles have base particles and a polymer (particle surface treatment agent) linked with the base particles and, in the electrophoretic particles, the content of the polymer is 5 weight % or more to 15 weight % or less.

Abstract: An electrophoresis dispersion liquid according to the aspect of the invention contains at least one type of electrophoretic particles and a dispersion medium and, in the electrophoresis dispersion liquid, the content of the electrophoretic particles is 10 weight % or more to 30 weight % or less. Furthermore, the electrophoretic particles have base particles and a polymer (particle surface treatment agent) linked with the base particles and, in the electrophoretic particles, the content of the polymer is 5 weight % or more to 15 weight % or less.

Abstract: An electrophoretic particle includes a base particle and a block copolymer (a particle surface treatment agent) which is bonded to the base particle (a particle), in which the block copolymer includes a dispersion portion derived from one first monomer formed of a siloxane-based compound, and a bonding portion derived from two or more second monomers having a functional group, and is bonded to the base particle with the reaction of the functional group in the bonding portion. In addition, a weight-average molecular weight of the dispersion portion is in a range of 15,000 to 150,000.

Abstract: A method of manufacturing an electrophoretic particle is a method of manufacturing an electrophoretic particle including a particle and a particle surface treatment agent which is bonded to the particle, the method including preparing a mixture containing a plurality of the particles, the particle surface treatment agent, an unreacted product of a raw material used at the time of generating the particle surface treatment agent, and a reaction by-product generated at the time of generating the particle surface treatment agent, the mixture having a content of the particle surface treatment agent which is set to be equal to or greater than 70% by weight in the mixture except for the plurality of particles; and bonding the particle surface treatment agent to a surface of the particle in the mixture.

Abstract: A method for evaluating an orientation state of an oriented layer, comprising: applying, on the oriented layer, a solution of a light emitting polymer containing a fluorescent material that is capable of being oriented according to an orientation state of an underlying layer; performing a heat treatment on the applied solution of the light emitting polymer to form a light emitting polymer film; obtaining a polarized fluorescence spectrum of the light emitting polymer film; determining an orientation parameter using an orientation function equation based on the polarized fluorescence spectrum; and evaluating the orientation state of the oriented layer using the orientation parameter.

Abstract: A transparent molded plastic article, which is used for, for example, a component of an auto instrument, includes a transparent molded plastic body and a surfactant layer, which is located on a surface of the plastic body. The surfactant layer contains a quaternary ammonium salt having a mean molecular weight of 260 to 385 to eliminate static electricity of the plastic body. Therefore, the transparent molded plastic article is substantially static-electricity-free while the deterioration in transparency of the surfactant is prevented.

Abstract: A transparent molded plastic article, which is used for, for example, a component of an auto instrument, includes a transparent molded plastic body and a surfactant layer, which is located on a surface of the plastic body. The surfactant layer contains a quaternary ammonium salt having a mean molecular weight of 260 to 385 to eliminate static electricity of the plastic body. Therefore, the transparent molded plastic article is substantially static-electricity-free while the deterioration in transparency of the surfactant is prevented.

Abstract: A method of forming a separation groove and a ditch for cutting a thermoplastic resin sheet by a laser beam is performed as follows. A heat-resistant layer made of thermosetting resin is printed on the rear surface of the resin sheet along the line of the ditch to be formed by the laser beam. A laser beam is radiated on the front surface of the resin sheet and scanned along the line of the ditch and the separation groove. The laser beam melts and evaporates resin and forms the ditch and the separation groove. Since the rear end of the ditch is covered by the heat-resistant layer, the resin sheet is not completely separated along the ditch line, while it is separated along the separation groove line. At the final stage, the resin sheet is cut along the ditch line. A flexible circuit sheet for making electrical connection can be easily and cost effectively processed in this laser beam process.

Abstract: A flexible printed circuit board having excellent flame proofness and a very little danger of causing a fire can be produced by subjecting a substrate or an insulating film consisting of a flexible resin film to surface treatment to provide a surface tension of 36 dyne/cm or more and then forming a resin film containing a flame retardant on the treated surface of said substrate or insulating film.