A manufacturing method for a pressure tank includes disposing a preform, in which a fiber layer is formed on an outer surface of a liner that forms an internal space of a pressure tank, within a mold, and rotating the preform in a circumferential direction within the mold with a central axis of the preform as a rotation center while resin is injected toward the preform disposed within the mold from a gate.

Manufacturing optoelectronic modules includes supporting a printed circuit board substrate (27) on a first vacuum injection tool (24). The printed circuit board substrate (27) has at least one optoelectronic component mounted thereon and has a solder mask (40) on a surface (46) facing away from the first vacuum injection tool (24). The method includes causing the first vacuum injection tool (24) and a second vacuum injection tool (22) to be brought closer to one another such that a surface (46) of the second vacuum injection tool (22) is in contact with the solder mask (40). Subsequently, a first epoxy (100, 20) is provided, using a vacuum injection technique, in spaces (104) between the upper tool (22) and the solder mask (40).

A method of producing a hard coating layer-laminated mold resin comprising a transfer material preparation step, a resin preparation step, a disposition step, and a transfer step. In the transfer material preparation step, a transfer material including a substrate sheet and a protective layer is prepared. The protective layer includes a cured and/or half-cured product of an active energy ray-curable resin and has a thermally reactive group and a polysiloxane chain. In the resin preparation step, mold resin in a thermally uncured and/or half-cured state is prepared. In the disposition step, the transfer material is disposed so that the protective layer is exposed. In the transfer step, the mold resin and the protective layer are brought into contact and heated to chemically bond them, and the mold layer is cured, and the protective layer is cured to form the hard coating layer.

A method of producing a hard coating layer-laminated mold resin comprising a transfer material preparation step, a resin preparation step, a disposition step, and a transfer step. In the transfer material preparation step, a transfer material including a substrate sheet and a protective layer is prepared. The protective layer includes a cured and/or half-cured product of an active energy ray-curable resin and has a thermally reactive group and a polysiloxane chain. In the resin preparation step, mold resin in a thermally uncured and/or half-cured state is prepared. In the disposition step, the transfer material is disposed so that the protective layer is exposed. In the transfer step, the mold resin and the protective layer are brought into contact and heated to chemically bond them, and the mold layer is cured, and the protective layer is cured to form the hard coating layer.

A method of manufacturing a fiber-reinforced composite material which is molded by impregnating a fiber-reinforced sheet with a resin and curing the resin includes: placing the fiber-reinforced sheet in a cavity of a mold; and molding the fiber-reinforced composite material, the molding including injecting the resin into the cavity of the mold, impregnating the fiber-reinforced sheet with the resin, and curing the resin. In the molding, after fine air bubbles contained in the resin are placed at a predetermined position of the cavity, the resin is cured.

A method of manufacturing a fiber-reinforced composite material which is molded by impregnating a fiber-reinforced sheet with a resin and curing the resin includes: placing the fiber-reinforced sheet in a cavity of a mold; and molding the fiber-reinforced composite material, the molding including injecting the resin into the cavity of the mold, impregnating the fiber-reinforced sheet with the resin, and curing the resin. In the molding, after fine air bubbles contained in the resin are placed at a predetermined position of the cavity, the resin is cured.

This document describes systems and processes for forming synthetic molded slabs, which may be suitable for use in living or working spaces (e.g., along a countertop, table, floor, or the like).

According to some aspects, a method is provided of casting an object from a mold, the method comprising obtaining a mold comprising a hollow shell of rigid material, the material comprising a thermoset polymer having a plurality of pores formed therein, providing a metal and/or ceramic slurry into an interior of the mold, exposing at least part of the mold to a low pressure environment so that a net flow of gas is produced from the interior of the mold into the low pressure environment. According to some aspects, a method of forming a porous mold is provided. According to some aspects, a photocurable liquid composition is provided, comprising a liquid photopolymer resin, particles of a solid material, in an amount between 30% and 60% by volume of the composition, and a water-soluble liquid.

According to some aspects, a method is provided of casting an object from a mold, the method comprising obtaining a mold comprising a hollow shell of rigid material, the material comprising a thermoset polymer having a plurality of pores formed therein, providing a metal and/or ceramic slurry into an interior of the mold, exposing at least part of the mold to a low pressure environment so that a net flow of gas is produced from the interior of the mold into the low pressure environment. According to some aspects, a method of forming a porous mold is provided. According to some aspects, a photocurable liquid composition is provided, comprising a liquid photopolymer resin, particles of a solid material, in an amount between 30% and 60% by volume of the composition, and a water-soluble liquid.

A battery module and a battery pack including the same. The battery module includes a battery cell stack including a plurality of battery cells, a housing for the battery cell stack, and a thermal conductive resin layer located between a lower surface of the housing and a first end of the battery cell stack. The first end of the battery cell stack has a double-folded seal part.