Abstract: A resin molding method is capable of reducing the use amount of micropellets and obtaining a resin molded article having required characteristics. A resin molding method includes a disposing step of disposing a preliminary molded body laminated and formed in a three-dimensional shape in a molding die, a filling step of heating and melting the preliminary molded body by an electromagnetic wave transmitted through the molding die and filling the molding die with a molten resin material, and a cooling step of cooling and solidifying the molten resin material in the molding die. In the cooling step, a resin molded article integrated so as to eliminate a lamination interface of the preliminary molded body is formed in the molding die.

Abstract: A light irradiation molding apparatus includes a pair of rubber molds through which light passes, and a light-irradiating means for emitting light from surfaces of the pair of rubber molds to a particulate thermoplastic resin placed in the cavity. The light irradiation molding apparatus relatively and sequentially moves the pair of rubber molds and the light-irradiating means so that an irradiation position of light emitted from the light-irradiating means moves from a melted portion to an unmelted portion of the thermoplastic resin, and the light irradiation molding apparatus sequentially melts portions of the thermoplastic resin.

Abstract: A light irradiation molding apparatus 1 includes a pair of rubber die units 2A and 2B, which are formed of a rubber material having a property of transmitting light X therethrough and form a cavity between facing sides which face each other, and a light irradiation means 4, which applies light X to a particulate or solid thermoplastic resin 6 arranged in the cavity 20 through surfaces of a pair of the rubber die units 2A and 2B. The light irradiation molding apparatus 1 is constituted so that a pair of the rubber die units 2A and 2B are made to come close to each other while the thermoplastic resin 6 arranged in the cavity 20 is molten by the light X applied from the light irradiation means 4, and a molded article 7 of the thermoplastic resin 6 is formed in the cavity 20 having a reduced volume.

Abstract: A light irradiation molding apparatus 1 includes a pair of rubber die units 2A and 2B, which are formed of a rubber material having a property of transmitting light X therethrough and form a cavity between facing sides which face each other, and a light irradiation means 4, which applies light X to a particulate or solid thermoplastic resin 6 arranged in the cavity 20 through surfaces of a pair of the rubber die units 2A and 2B. The light irradiation molding apparatus 1 is constituted so that a pair of the rubber die units 2A and 2B are made to come close to each other while the thermoplastic resin 6 arranged in the cavity 20 is molten by the light X applied from the light irradiation means 4, and a molded article 7 of the thermoplastic resin 6 is formed in the cavity 20 having a reduced volume.

Abstract: A light-irradiation molding apparatus includes: a pair of rubber mold portions each including rubber material having a property of transmitting light and forming a cavity on respective opposing sides that are fitted together; and a light irradiation mechanism providing light irradiation to particulate thermoplastic resin placed in the cavity, through a surface of the pair of rubber mold portions. The light-irradiation molding apparatus is configured to bring the pair of rubber mold portions close to each other while melting the thermoplastic resin placed in the cavity by the light irradiation provided by the light irradiation mechanism to mold a molded product of the thermoplastic resin in the cavity with a reduced volume.

Abstract: An electromagnetic wave irradiation molding apparatus 1 includes a mold 2 made of an insulating material and electromagnetic wave irradiation means 4 for irradiating specific electromagnetic waves X including a wavelength region of 0.01 m to 100 m. The mold 2 is separated into mold parts 2A and 2B, between which a cavity 20 to be filled with a thermoplastic resin 6 is provided to form a molded article. A surface layer 3 having a capability to absorb the specific electromagnetic waves X is formed on at least a part of an inner wall surface of the cavity 20.

Abstract: A light irradiation molding apparatus includes a pair of rubber molds through which light passes, and a light-irradiating means for emitting light from surfaces of the pair of rubber molds to a particulate thermoplastic resin placed in the cavity. The light irradiation molding apparatus relatively and sequentially moves the pair of rubber molds and the light-irradiating means so that an irradiation position of light emitted from the light-irradiating means moves from a melted portion to an unmelted portion of the thermoplastic resin, and the light irradiation molding apparatus sequentially melts portions of the thermoplastic resin.

Abstract: A process for producing a thermoplastic resin molded product, comprising: a placement step of placing a thermoplastic resin particle composition 6A into a cavity 22 of a rubber die 2 made of a rubber material; a particle heating step of irradiating the thermoplastic resin particle composition 6A in the cavity 22 with electromagnetic waves having wavelengths ranging from 0.78 to 2 ?m through the rubber die 2, thereby heating to melt the thermoplastic resin particle composition 6A; a filling step of filling a thermoplastic resin 6 in a molten state into a space 220 left in the cavity 22; and a cooling step of cooling a thermoplastic resin 6 in the cavity 22 thereby obtaining a thermoplastic resin molded product.

Abstract: A light irradiation molding apparatus includes a pair of rubber die units, which are formed of a rubber material having a property of transmitting light therethrough and form a cavity between facing sides which face each other, and a light irradiation device, which applies light to a particulate or solid thermoplastic resin arranged in the cavity through surfaces of a pair of the rubber die units. In the light irradiation molding apparatus a pair of the rubber die units are made to come close to each other while the thermoplastic resin arranged in the cavity is molten by the light applied from the light irradiation device, and a molded article of the thermoplastic resin is formed in the cavity having a reduced volume.

Abstract: A resin forming method and a resin forming apparatus for obtaining a resin formed product, by filling a cavity of a rubber-made mold with a thermoplastic resin, and cooling the thermoplastic resin. When filling the cavity with the thermoplastic resin, an electromagnetic wave generator is used, and electromagnetic waves having an intensity peak in a wavelength region of 0.78 to 2 ?m are irradiated to the thermoplastic resin from the surface of the mold, and thereby the thermoplastic resin is heated selectively from the mold. The thermoplastic resin is an ABS resin which either a noncrystalline thermoplastic resin, or is a rubber modified thermoplastic resin.

Abstract: A process for producing a thermoplastic resin molded product, comprising: a placement step of placing a thermoplastic resin particle composition 6A into a cavity 22 of a rubber die 2 made of a rubber material; a particle heating step of irradiating the thermoplastic resin particle composition 6A in the cavity 22 with electromagnetic waves having wavelengths ranging from 0.78 to 2 ?m through the rubber die 2, thereby heating to melt the thermoplastic resin particle composition 6A; a filling step of filling a thermoplastic resin 6 in a molten state into a space 220 left in the cavity 22; and a cooling step of cooling a thermoplastic resin 6 in the cavity 22 thereby obtaining a thermoplastic resin molded product.

Abstract: A process for producing a thermoplastic resin molded product, comprising: a placement step of placing a thermoplastic resin particle composition 6A into a cavity 22 of a rubber die 2 made of a rubber material; a particle heating step of irradiating the thermoplastic resin particle composition 6A in the cavity 22 with electromagnetic waves having wavelengths ranging from 0.78 to 2 ?m through the rubber die 2, thereby heating to melt the thermoplastic resin particle composition 6A; a filling step of filling a thermoplastic resin 6 in a molten state into a space 220 left in the cavity 22; and a cooling step of cooling a thermoplastic resin 6 in the cavity 22 thereby obtaining a thermoplastic resin molded product.

Abstract: A rubber mold for molding a resin 2 is provided with a cavity 213 for filling therein a thermoplastic resin in a molten state by applying pressure. The rubber mold 2 includes a core mold 21 made of a rubber material and provided with the cavity 213 and a base mold 22 made of a rubber material and having such a shape that the core mold 21 is to be placed therein. The core mold 21 is formed by combining a pair of split mold parts 211 which is divided on splitting surfaces 212 for opening the cavity 213. The base mold 22 has a bottom part 221 and a pair of first side parts 222 formed on two opposite sides in a direction in which the plurality of split mold parts are aligned with each other.

Abstract: The present invention presents a resin forming method and a resin forming apparatus 1 for obtaining a resin formed product, by filling a cavity 21 of a rubber-made mold 2 with a thermoplastic resin 3, and cooling this thermoplastic resin 3. When filling the cavity 21 with the thermoplastic resin 3, electromagnetic wave generating means 4 is used, and electromagnetic waves having an intensity peak in a wavelength region of 0.78 to 2 ?m are irradiated to the thermoplastic resin 3 from the surface of the mold 2, and thereby the thermoplastic resin 3 is heated selectively from the mold 2. The thermoplastic resin 3 is an ABS resin which either a noncrystalline thermoplastic resin, or is a rubber modified thermoplastic resin.

Abstract: A process for producing a thermoplastic resin molded product, comprising: a placement step of placing a thermoplastic resin particle composition 6A into a cavity 22 of a rubber die 2 made of a rubber material; a particle heating step of irradiating the thermoplastic resin particle composition 6A in the cavity 22 with electromagnetic waves having wavelengths ranging from 0.78 to 2 ?m through the rubber die 2, thereby heating to melt the thermoplastic resin particle composition 6A; a filling step of filling a thermoplastic resin 6 in a molten state into a space 220 left in the cavity 22; and a cooling step of cooling a thermoplastic resin 6 in the cavity 22 thereby obtaining a thermoplastic resin molded product.

Abstract: A resin forming method and a resin forming apparatus for obtaining a resin formed product, by filling a cavity of a rubber-made mold with a thermoplastic resin, and cooling the thermoplastic resin. When filling the cavity with the thermoplastic resin, an electromagnetic wave generator is used, and electromagnetic waves having an intensity peak in a wavelength region of 0.78 to 2 ?m are irradiated to the thermoplastic resin from the surface of the mold, and thereby the thermoplastic resin is heated selectively from the mold. The thermoplastic resin is an ABS resin which either a noncrystalline thermoplastic resin, or is a rubber modified thermoplastic resin.

Abstract: A mold for injection molding which is comprised of a mold cavity having an inside shape fit to an outside shape of a target product and a temporary space being communicated with the mold cavity and is eliminated before an amount of a molten material being injected to the mold cavity reaches the capacity of the mold cavity.

Abstract: Objects of the present invention are to provide a method for molding polymers to be able to mold products each of which has an outer shape transferred accurately from the shape of the inside of a mold, exhibits high dimensional accuracy and is uniform in the thickness of its surface skin layer and the expansion ratio in its foamed inside. A molten polymer 60 is injected into a cavity 30 and simultaneously gas is pressed to the inside of the molten polymer 60 to contact the polymer close to the surface of the mold, and then gas is exhausted while maintaining the shape inside the mold, to thereby mold a polymer formed product in which a surface skin layer 61 and a foamed inside 62 having cushioning property are formed in one piece.

Abstract: Objects of the present invention are to provide a method for molding polymers to be able to mold products each of which has an outer shape transferred accurately from the shape of the inside of a mold, exhibits high dimensional accuracy and is uniform in the thickness of its surface skin layer and the expansion ratio in its foamed inside.

Abstract: A process and an apparatus for molding, in which a molten thermoplastic resin is firmly fitted onto a molding surface of a mold under a pressure lower than or equal to 100 kg/cm.sup.2 and is cured to obtain a molded product. The molding apparatus has a mold main body, and a mold body on which the molding surface is defined. The mold body is supported relative to the mold main body with maintaining a space on the back side of the molding surface in a heat insulative manner by a supporting member which includes at least a heat insulative supporting member having a thermal conductivity of 0.001 to 1 Kcal/mh .degree.C. and a longitudinal elastic modulus of 0.01 to 10 kg/cm.sup.2. In the space, a heating fluid for heating the molding surface from the bask side to a temperature higher than or equal to Vicat softening temperate (T) .degree.C.