Abstract: Disclosed is a system in which carbon dioxide is supplied to a pressure chamber of a molten resin preparing apparatus which has established a certain temperature environment to diffuse the carbon dioxide in a material synthetic resin in a molten state. After turning the material synthetic resin into a gas-dissolving-resin in the pressure chamber, the gas-dissolving-resin is supplied to a mold space of a molding apparatus for compression molding. The pressure inside the mold space is quickly lowered by raising an upper mold of the molding apparatus quickly, whereby a foamed article is produced from the gas-dissolving-resin in the mold space.

Abstract: A foamed thermoplastic resin sheet manufacturing device is provided with (i) an extruder for melting and kneading a thermoplastic resin and a foaming agent to form a melted/kneaded mixture and extruding the melted/kneaded mixture, (ii) a die which is provided at a front end of said extruder and forms the melted/kneaded mixture into a sheet-like foamy thermoplastic resin material, (iii) a vacuum chamber in which the foamy thermoplastic resin material extruded through said die expands under a reduced pressure, and (iv) a facing-wall section composed of a pair of walls of said vacuum chamber which face each other in a thickness direction of the foamy thermoplastic resin material, at least one of the walls in pair being a movable wall provided so as to move in directions in which said walls approach and separate each other. By this arrangement, foamed thermoplastic resin sheets with various thicknesses can be produced.

Abstract: The present invention provides a vehicle front-end panel made of a thermoplastic resin for constituting a vehicle front-end module, wherein the front-end panel comprises; (a) a thermoplastic resin; and (b-i) an electrically conductive material and/or (b-ii) an antistatic material, the vehicle front-end panel having electrical conductivity and/or an antistatic property.

Abstract: The present invention relates to a wood-filled thermoplastic resin composition comprising wood meal, thermoplastic resin particles and a binder solution, and a process for producing the same.

Abstract: The present invention provides a foamed polyolefin-based resin container formed from a foamed polyolefin-based resin sheet comprising a foamed layer having an expansion ratio of from 1.5 to 8 times and a thickness of not greater than 6 mm wherein a draw ratio [(the height of the container)/(the minimum dimension of an opening of the container)] is from 0.6 to 1.5 and a process for producing the same, and the like. The container relates to a container for food products such as retorted food products, particularly to a container for food products using a foamed polyolefin-based resin sheet as a substrate.

Abstract: The present invention relates to foamed thermoplastic resin moldings which can be used, for example, as food product containers which can contain retort food products, etc., household electrical appliance parts and automotive interior parts, and to a process for producing the same, said foamed thermoplastic resin molding prepared by shaping a foamed thermoplastic resin sheet, the molding comprising a general part and a thick part wherein these parts differ from each other in thickness wherein the mean expansion ratio of the thick part is not less than 1.2 times the mean expansion ratio of the general part and wherein the maximum thickness of the thick part is not less than 1.5 times the thickness of the general part.

Abstract: The present invention relates to a metal mold for producing a synthetic resin molded product, particularly a thermoplastic resin molded product, which is characterized by comprising: a first mold, a sliding mold that is allowed to slide over the entire outer circumferential face or on a portion of said first mold, a second mold having a parting face that is capable of contacting the face of the outer circumference of said sliding mold, and a mechanical clamping mechanism that makes the outer circumferential portion of the said sliding mold mechanically coupled to said second mold, wherein said sliding mold has a sliding direction that is the same as the opening and closing direction of the two molds, that is, the first mold and the second mold, and the sliding face between the first mold and the sliding mold is located inside the outer circumferential line, of a plane projection figure in the opening and closing direction of the metal mold, of a synthetic resin molded product which is molded by the metal mold

Abstract: The present invention relates to a process for producing a skin material-laminated foamed thermoplastic resin molding and to foamed thermoplastic resin moldings, said process comprising a skin material and a thermoplastic resin foam integrally laminated with the skin material, wherein the process uses a mold comprising a male and female mold members which are mutually slidable and whose cavity clearance (t) is adjustable, the process comprising the following steps (1)-(5): (1) skin material supply step, (2) resin injection step, (3) compression step, (4) foaming step and (5) cooling and releasing step, and said moldings that are a panel-shaped foamed thermoplastic resin molding comprising a substrate and a projection standing on the substrate wherein the projection has a mean expansion ratio of not greater than 1.1 times and the substrate has a mean expansion ratio of not less than 1.3 times.

Abstract: The present invention provides a foamed thermoplastic resin article having light weight and high stiffness suitable for interior members for automobile, as well as having soft feel of a skin layer, which is formed by integrally laminating a skin material and a thermoplastic resin foamed base material while forming the same, wherein the thermoplastic resin foamed base material is composed of a foamed core layer, a skin layer of the skin material side and a skin layer of the backside, and when thickness of the skin layer of the skin material side is defined as A, and thickness of the skin layer of the backside is defined as B, the A and B satisfy the relationship of A<B.

Abstract: The present invention provides a hollow foamed polyolefin-based resin container comprising an inner layer and an outer layer, at least one of the inner and outer layers being formed of a foamed polyolefin-based resin sheet, wherein at least a side wall part of the container has a hollow portion between the inner and outer layer and a process for produciong the same, and the like. The hollow foamed polyolefin-based resin container can be used as containers for retorted food products and other containers.

Abstract: A discharge device for discharging solids of a thermoplastic substance and fibers includes a discharge passage extending longitudinally and having an inner wall surface forming a passage opened at its lower end, a solid supply device for supplying the solids of the thermoplastic substances to a first position in the passage and a fiber supply device for supplying the fibers to a second position in the passage. A cross line on which a part of the inner wall surface extending downward from an upper one of the first position and the second position intersects a vertical plane forms an angle of 0 to 30° with respect to a vertical line, or all tangent lines for the cross line form angles from 0 to 30° with respect to a vertical line.

Abstract: A disclosed process for producing a molded article made of fiber-reinforced thermoplastic material includes providing a molding machine containing a plasticizing apparatus having an opening for receiving raw materials, an apparatus for feeding the raw materials to the plasticizing apparatus and a molding apparatus having a cavity; feeding both thermoplastic material in a solid state and reinforcing fibers with a length from about 3 mm to about 50 mm simultaneously into the plasticizing apparatus through the opening from the feeding apparatus; melting the thermoplastic material and kneading the thermoplastic material and the reinforcing fibers in the plasticizing apparatus to produce kneaded material comprising the thermoplastic material and the reinforcing fibers; supplying the kneaded material to the molding apparatus from the plasticizing apparatus; and molding the kneaded material into the molded article in the cavity is provided.

Abstract: The present invention provides a polypropylene-based foamed sheet whose expansion ratio is 4 or more times characterized by expansion ratio A of the part (skin layer) up to 20% in each of the seat thickness from both surface of said polypropylene-based foamed sheet and expansion ratio B of part other than said skin layer (core layer) satisfying the following formula (1) and the like1.3.ltoreq.B/A (1)The polypropylene-based foamed sheet of the present invention is excellent in the balance of a lightweight properties and rigidity.

Abstract: A thermoplastic resin is molded by a press-molding method wherein a thermoplastic resin in a molten state is compressed to flow between a pair of female and male molds so as to be formed into a predetermined shape. A compression rate of the mold is controlled so that the following expression (1) is satisfied:0.5.ltoreq.B/A.ltoreq.2 (1)wherein A (mm/s.sup.2) is an acceleration which is realized at a time when the compression rate is 75% of a maximum rate in a compression-acceleration region, which region is defined as a period of time from a moment when the compression of the molten thermoplastic resin is started to a moment when the compression rate reaches the maximum rate; and B (mm/s.sup.2) is a deceleration which is realized at a time when the compression rate is 75% of the maximum rate in a compression-deceleration region, which region is defined as a period of time from a moment when the compression rate reaches the maximum rate to a moment when the closing of the molds is complete.

Abstract: A thermoplastic resin molded product comprises a thermoplastic resin containing 5 to 40% by weight of rubber particles. The rubber particles present near the surface of the molded product fulfill conditions of the equations (1) to (4):(b/a).ltoreq.2 (1)where a and b are the average minor and major axis lengths in a section of the rubber particles,1.ltoreq.{(b/a)max.}/{(b/a)min.}.ltoreq.1.5 (2)where {(b/a)max.} and {(b/a)min.} are the maximum and minimum values of the ratios of (b/a), and0.ltoreq.(Amax.-A)/A.ltoreq.0.2 (3)0.ltoreq.(A-Amin.)/A.ltoreq.0.2 (4)where Amax. and Amin. are the maximum and minimum values of the proportions of the areas accounted for by the rubber particles in sections of the molded product, and A is the average value of the proportions.

Abstract: A method for producing a multilayer molded article by facing a preheating panel on which a preheated skin material is placed towards one of upper and lower molds, forming a closed space by the mold and the preheating panel, evacuating the closed space to suck the skin material onto a surface of the mold, removing the preheating panel, supplying a resin through a resin conduit with closing the molds or temporarily stopping mold closing, and finishing the mold closing. By this method, a multilayer molded article having a resin body which is made by deep drawing or has a complicated shape and a skin material laminated on a surface of the resin body can be produced.

Abstract: A thermoplastic resin is molded by a press-molding method wherein a thermoplastic resin in a molten state is compressed to flow between a pair of female and male molds so as to be formed into a predetermined shape. A compression rate of the mold is controlled so that the following expression (1) is satisfied:0.5.ltorsim.B/A.ltorsim.2 (1)wherein A (mm/s.sup.2) is an acceleration which is realized at a time when the compression rate is 75% of a maximum rate in a compression-acceleration region, which region is defined as a period of time from a moment when the compression of the molten thermoplastic resin is started to a moment when the compression rate reaches the maximum rate; and B (mm/s.sup.2) is a deceleration which is realized at a time when the compression rate is 75% of the maximum rate in a compression-deceleration region, which region is defined as a period of time from a moment when the compression rate reaches the maximum rate to a moment when the closing of the molds is complete.

Abstract: A process for producing a fiber-reinforced thermoplastic resin molded article including: (a) projecting a sheet-holding member from a cavity face of a lower mold towards a cavity face of an upper mold, (b) placing a heated fiber-reinforced thermoplastic resin sheet on the sheet-holding member, (c) closing the upper and lower molds, (d) in the step of closing the upper and lower molds, putting the sheet-holding member into the lower mold before the cavity face of the upper mold contacts with the resin sheet, (e) maintaining the upper and lower molds in a closed state, and (f) opening the upper and lower molds and removing the molded article. A fiber-reinforced thermoplastic resin molded article which has a good surface appearance and, if any, whose protrusions such as ribs and bosses are sufficiently filled with thermoplastic resin and reinforcing fibers, can be produced, without using an additional thermoplastic resin sheet and without repeating the molding process.

Abstract: In a method of simulating flow behavior of a resin in a process for press-molding the resin by use of a press-molding machine comprising a press apparatus equipped with a hydraulic circuit, and first and second molds at least one of which is connected to the press apparatus, disclosed is a method comprising a step of determining, from a characteristic of the hydraulic circuit, an elastic coefficient of the press apparatus, and an apparent elastic coefficient of the resin, a true compression rate imparted to the resin by the press apparatus, and a step of sequentially analyzing, based on the true compression rate, flow behavior of the resin.

Abstract: A screw apparatus comprises a melting extruder for melting a resin; a screw unit for kneading molten resin and reinforcing fibers to obtain a reinforcing fiber-containing molten resin and supplying it; and a mixer in which at least a part of the reinforcing fibers attach to the molten resin which is extruded from the melting extruder and flows down owing to gravity in an open space, and then the reinforcing fibers and the molten resin are fed into the screw unit.