Methods and systems that include introducing blowing agent into a hopper of a polymeric foam processing system.

An injection apparatus including a plasticizing unit (2) that plasticizes a raw material resin and an injection unit (3) that injects a plasticized molten resin. The plasticizing unit includes a heating cylinder (20) having a foaming gas injection valve and a screw (21) provided inside the heating cylinder. The rotation and advance and retreat movements of the screw are controlled such that a raw material resin is plasticized by the screw and a foaming gas injected from a foaming gas injection valve is dissolved in the plasticized molten resin. After the screw retreats to a prescribed position according as the molten resin accumulates in the front end side of the heating cylinder by the screw that is rotating, the screw advances with rotating to cause the molten resin which has been accumulated in the front end side of the heating cylinder to be transferred to the injection unit.

Disclosed herein are a foamed resin molded body that has excellent impact resistance and rigidity and that is hardly fractured even when subjected to high impact, and a method for manufacturing the same. The foamed resin molded body is made of an olefin-based resin composition containing an olefin resin and a polyamide resin, the olefin-based resin composition has a continuous phase containing the olefin resin and a dispersed phase dispersed in the continuous phase and containing the polyamide resin, and the dispersed phase contains a melt-kneaded product of the polyamide resin and an elastomer having a reactive group that reacts with the polyamide resin.

The present invention relates to an injection mold, an injection molding machine including the injection mold, and a method of manufacturing an injection-molded product using the injection molding machine. More specifically, the present invention relates to an injection mold including a mold having a mold surface on which one or more deposition layers are formed, wherein the deposition layer includes a fluororesin homopolymer or polyether ether ketone (PEEK); an injection molding machine including the injection mold; and a method of manufacturing an injection-molded product using the injection molding machine.

The present invention relates to an injection molded product, an expanded foam product, a method of injection molding a plastisol an expandable plastic embryo during which the foaming of the plastic embryo is suppressed throughout the molding operation. The invention further relates to a mold and an injection molding device.

An injection apparatus including a plasticizing unit (2) that plasticizes a raw material resin and an injection unit (3) that injects a plasticized molten resin. The plasticizing unit includes a heating cylinder (20) having a foaming gas injection valve and a screw (21) provided inside the heating cylinder. The rotation and advance and retreat movements of the screw are controlled such that a raw material resin is plasticized by the screw and a foaming gas injected from a foaming gas injection valve is dissolved in the plasticized molten resin. After the screw retreats to a prescribed position according as the molten resin accumulates in the front end side of the heating cylinder by the screw that is rotating, the screw advances with rotating to cause the molten resin which has been accumulated in the front end side of the heating cylinder to be transferred to the injection unit.

Disclosed herein are a foamed resin molded body that has excellent impact resistance and rigidity and that is hardly fractured even when subjected to high impact, and a method for manufacturing the same. The foamed resin molded body is made of an olefin-based resin composition containing an olefin resin and a polyamide resin, the olefin-based resin composition has a continuous phase containing the olefin resin and a dispersed phase dispersed in the continuous phase and containing the polyamide resin, and the dispersed phase contains a melt-kneaded product of the polyamide resin and an elastomer having a reactive group that reacts with the polyamide resin.

A plasticizing process in which a molten resin that has been plasticized and dissolved in a foaming gas is sent to the front end side of a heating cylinder (20) by means of a screw (21) that rotates in a heating cylinder (20), and the screw (21) retreats according as the molten resin accumulates in the front end side of the heating cylinder (20); a transfer process in which the screw (21) is advanced with rotating and transfers the molten resin accumulated in the front end side of the heating cylinder (20) from a plasticizing unit (2) to an injection unit (3), and an injection process in which the molten resin is injected from the injection unit (3) are conducted and repeated to produce a foamable injection molded product.

Methods and systems that include introducing blowing agent into a hopper of a polymeric foam processing system.