B29C44/02

Expandable, expanding-agent-containing granules based on high-temperature thermoplastics

Expandable, blowing agent-containing pellets based on high temperature thermoplastics having a glass transition temperature according to ISO 11357-2-1999 of at least 180° C., wherein the expandable, blowing agent-containing pellets comprise at least one nucleating agent and have a poured density according to DIN ISO 697:1982 in the range from 400 to 900 kg/m.sup.3 and a mass in the range from 1 to 5 mg/pellet, processes for production thereof and foam particles obtainable therefrom having a glass transition temperature according to ISO 11357-2-1999 of at least 180° C., wherein the expanded foam particles comprise at least one nucleating agent and have a poured density according to DIN ISO 697:1982 in the range from 10 to 200 kg/m.sup.3, and particle foams obtainable therefrom and the use thereof for producing components for aviation.

Foaming particle manufacturing device using polyolefin-based resin particle and method for manufacturing said foaming particle
11498247 · 2022-11-15 · ·

An expanded particle producing apparatus includes a vessel and a blade stirrer that is located inside the vessel. The blade stirrer comprises a stirrer base and an impeller blade that is attached to the stirrer base. A distance from the bottom of the vessel to the center of the stirrer base (L1) and a depth of the vessel (L2) have a ratio (L1/L2) of 0.01 to 0.2. L1 is measured in a depth direction parallel to L2, and a central axis of the blade stirrer coincides with a central axis of the vessel. The apparatus is configured to produce expanded particles.

Foaming particle manufacturing device using polyolefin-based resin particle and method for manufacturing said foaming particle
11498247 · 2022-11-15 · ·

An expanded particle producing apparatus includes a vessel and a blade stirrer that is located inside the vessel. The blade stirrer comprises a stirrer base and an impeller blade that is attached to the stirrer base. A distance from the bottom of the vessel to the center of the stirrer base (L1) and a depth of the vessel (L2) have a ratio (L1/L2) of 0.01 to 0.2. L1 is measured in a depth direction parallel to L2, and a central axis of the blade stirrer coincides with a central axis of the vessel. The apparatus is configured to produce expanded particles.

Method of foaming an injection molded precursor
11491688 · 2022-11-08 · ·

A method of making a foamed article comprises (a) injection molding a molten thermoplastic elastomer to form an precursor; (b) crosslinking the thermoplastic elastomer; (c) heating the thermoplastic elastomer to a first temperature to soften the thermoplastic elastomer; (d) infusing the thermoplastic elastomer with at least one inert gas at a first pressure that is sufficient to cause the at least one inert gas to permeate into the softened thermoplastic elastomer; and (e) while the article is softened, reducing the pressure to a second pressure below the first pressure to at least partially foam the precursor into a foamed article, wherein the foamed article is substantially the same shape as the precursor.

Methods for compression molding foam articles

Compression molded foam articles are provided having a closed cell foam structure comprising a plurality of cells having an anisotropic cell shape. The disclosed compression molded foam articles can be used as components or parts of a variety of articles, including articles of footwear and athletic equipment. Methods are disclosed for making the disclosed compression molded foam articles from a foamed preform having an elastomeric closed cell foam with substantially isotropic cell shape. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.

ORGANIZATIONAL APPARATUS WITH EXPANDING FOAM
20230030137 · 2023-02-02 · ·

A design, material, and process of manufacturing an organizational apparatus, e.g., an organizational bin, made from expanding-foam. In some examples, the bin includes four walls and a base forming an interior cavity that is configured to receive items to be organized, stored, or transported, e.g., shoes, or dirty or wet items. In some examples, the material used is a plant-based or bio-based Ethylene-vinyl Acetate (EVA) expansion-foam.

ORGANIZATIONAL APPARATUS WITH EXPANDING FOAM
20230030137 · 2023-02-02 · ·

A design, material, and process of manufacturing an organizational apparatus, e.g., an organizational bin, made from expanding-foam. In some examples, the bin includes four walls and a base forming an interior cavity that is configured to receive items to be organized, stored, or transported, e.g., shoes, or dirty or wet items. In some examples, the material used is a plant-based or bio-based Ethylene-vinyl Acetate (EVA) expansion-foam.

Shaping system, shaped object formation method, and computer-readable storage medium
11607837 · 2023-03-21 · ·

A shaping system includes: a printing device that prints an image using predetermined ink on a thermal expansion sheet having a thermal expansion layer on one side; and an expansion device that performs: a drying process of heating the thermal expansion sheet to an extent that allows the thermal expansion layer to maintain a non-expansion state, to dry the image printed by the printing device using the predetermined ink; and an expansion process of, after the drying process, heating the thermal expansion sheet to an extent that allows the thermal expansion layer to expand, to expand the thermal expansion layer.

Manufacturing method and manufacturing device for foam molded article
11478969 · 2022-10-25 · ·

A method for producing a foam-molded product uses a producing apparatus including a plasticizing cylinder. The plasticizing cylinder has a plasticization zone, a starvation zone, and an introducing port which is formed in the plasticizing cylinder and via which a physical foaming agent is introduced into the starvation zone. The method includes: plasticizing and melting a thermoplastic resin into a molten resin in the plasticization zone; introducing a pressurized fluid containing the physical foaming agent having a fixed pressure into the starvation zone; allowing the molten resin to be in the starved state in the starvation zone; bringing the molten resin in the starved state into contact with the pressurized fluid having the fixed pressure in the starvation zone; and molding the molten resin into the foam-molded product. At least one pressure boosting part is provided in the starvation zone.

Manufacturing method and manufacturing device for foam molded article
11478969 · 2022-10-25 · ·

A method for producing a foam-molded product uses a producing apparatus including a plasticizing cylinder. The plasticizing cylinder has a plasticization zone, a starvation zone, and an introducing port which is formed in the plasticizing cylinder and via which a physical foaming agent is introduced into the starvation zone. The method includes: plasticizing and melting a thermoplastic resin into a molten resin in the plasticization zone; introducing a pressurized fluid containing the physical foaming agent having a fixed pressure into the starvation zone; allowing the molten resin to be in the starved state in the starvation zone; bringing the molten resin in the starved state into contact with the pressurized fluid having the fixed pressure in the starvation zone; and molding the molten resin into the foam-molded product. At least one pressure boosting part is provided in the starvation zone.