Abstract: An injection molding machine according to an embodiment includes an injection mechanism and an injection mold. The injection mechanism injects resin. The injection mold includes a fixed part and a movable part. The fixed part includes a resin injection port through which resin injected by the injection mechanism enters. The movable part serves to mold the entered resin. The resin fills a cavity between the fixed part and the movable part. The injection mold includes a sprue, a back-flow prevention mechanism, and a heater. The sprue is provided in the fixed part. The sprue allows resin to enter the cavity through the sprue. The sprue has a taper shape tapered off toward the resin injection port. The back-flow prevention mechanism serves to block resin flowing back through the sprue from the cavity toward the resin injection port. The heater serves to keep resin in a molten state.

Abstract: An injection molding apparatus according to an embodiment is configured to mold a thermoplastic resin into a thick-walled component by injection molding. The injection molding apparatus includes a mold having a cavity and a core; and a controller configured to control an operation of the mold. The controller is capable of performing a filling and pressure holding process of filling the thermoplastic resin between the cavity and the core in a state in which a distance between the cavity and the core is increased, and a cooling and solidifying process of cooling and solidifying the filled thermoplastic resin while pressurizing the filled thermoplastic resin by decreasing the distance between the cavity and the core. The controller stacks the thermoplastic resin by performing an operation set including the filling and pressure holding process and the cooling and solidifying process a plurality of times.

Abstract: A coating material including a perfluorocarbon sulfonic acid resin which is a copolymer including a polymerization unit represented by —(CF2—CFZ)—, in the formula, Z being H, Cl, F, or a C1-C3 perfluoroalkyl group, and a polymerization unit represented by —(CF2—CF(—O—(CF2)m—SO3H))—, in the formula, m being an integer of 1 to 12, and the perfluorocarbon sulfonic acid resin has an equivalent weight EW of 200 to 1000. Also disclosed is a laminate including a base material and a hydrophilic layer formed from the coating material.

Abstract: A coating material including a perfluorocarbon sulfonic acid resin which is a copolymer including a polymerization unit represented by —(CF2—CFZ)—, in the formula, Z being H, Cl, F, or a C1-C3 perfluoroalkyl group, and a polymerization unit represented by —(CF2—CF(—O—(CF2)m—SO3H))—, in the formula, m being an integer of 1 to 12, and the perfluorocarbon sulfonic acid resin has an equivalent weight EW of 200 to 1000. Also disclosed is a laminate including a base material and a hydrophilic layer formed from the coating material.