B29K105/04

Mold insert for use in a mold for the manufacture of a cushioning element for sports apparel

An aspect of the present invention relates to a mold insert for use in a mold for the manufacture of a cushioning element for sports apparel. Further aspects of the present invention relate to a mold using such a mold insert, a method for the manufacture of a cushioning element for sports apparel using such a mold, and a cushioning element manufactured by such a method.

Soundproof member and production method thereof
11970120 · 2024-04-30 · ·

In a soundproof member 10 including a polyurethane foam 11 and disposed apart from an engine E on a vehicle interior side of a dash panel 50 partitioning a space into an engine room having the engine E as a sound source and a vehicle interior, the polyurethane foam 11 has a surface layer 12 on at least a part of the surface thereof, a one side surface of the polyurethane foam 11 directly facing the vehicle interior side of the dash panel 50 has at least a surface layer 12A in an open cell state or a core, and a surface layer 12B of the other side surface opposite to the one side surface is a surface layer in a closed cell state.

Mechanical reticulation of polymeric-based closed cell foams

Polymeric based closed cell foams, such as shape memory polymer foams, contain bubbles. Making these bubbles continuous is called reticulation. Disclosed are embodiments of a device and method to controllably reticulate polymer-based closed cell foams by puncturing the membranes of these polymer-based closed cell foams.

Foam molded product and manufacturing method therefor

The present disclosure provides a foam molded product and a manufacturing method. The foam molded product is includes a foam body, an insert material having a display unit or a detection unit attached to the foam body, and a surface material affixed to a surface to which at least the insert material is attached. A manufacturing method includes: preparing a pair of molds including a first mold and a second mold; affixing an insert material and a surface material together such that the surface material is in contact with a molding surface of the first mold; closing the pair of molds; injecting a foam resin into a molding space formed by closing the molds; foaming the foam resin to form a foam body; opening the pair of molds; and removing a molded product in which the affixed part and the foam body are integrated.

3D printing system for preparing a three-dimensional object with a surface melting section

A three-dimensional (3D) printing system for preparing an object made at least partially of an expanded polymer including: a printing device for transporting and depositing a strand of expanded polymer including a blowing agent onto a surface and a 3D movement device for adjusting the position of the printing device in a predefined matrix allowing deposit of the strand of expanded polymer at a predetermined time and precise position within the matrix, the printing device includes: a feed section, a transporting section, a surface melting section, and a terminal printing head section for depositing the expanded polymer strand onto the surface, and all of sections have the same inner diameter, and the surface melting section including a solid-state welding element, a laser beam, a generator of hot gas or liquid and/or a generator of heat.

Foamed resin molded article and method for manufacturing same

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.

SOUNDPROOF MEMBER AND PRODUCTION METHOD THEREOF
20240149801 · 2024-05-09 · ·

In a soundproof member 10 including a polyurethane foam 11 and disposed apart from an engine E on a vehicle interior side of a dash panel 50 partitioning a space into an engine room having the engine E as a sound source and a vehicle interior, the polyurethane foam 11 has a surface layer 12 on at least a part of the surface thereof, a one side surface of the polyurethane foam 11 directly facing the vehicle interior side of the dash panel 50 has at least a surface layer 12A in an open cell state or a core, and a surface layer 12B of the other side surface opposite to the one side surface is a surface layer in a closed cell state.

Tool, tool system and method for the production of particle foam parts
11975465 · 2024-05-07 · ·

The present invention relates to a tool, a tool system and a method for the production of particle foam parts, in particular for the manufacture of shoe soles. The shoe sole may be manufactured by welding foam particles using electromagnetic waves. The tool may comprise two mold halves forming a mold cavity corresponding to the shape of the shoe sole. The tool may be arranged between two capacitor plates. The mold cavity may be filled with the foam particles. The tool may then be closed and subjected to electromagnetic waves, in particular radio waves or microwaves, introduced into the mold cavity via the capacitor plates. The foam particles heated by the electromagnetic waves and at least partially fuse or bake together.

In-situ microfibrillated reinforced polymer composite heat-insulating foam material as well as preparation method and application thereof

The disclosure belongs to the technical field of heat insulation materials, and discloses an in-situ microfibrillated reinforced polymer composite heat insulation foam material as well as a preparation method and application thereof. This disclosure adopts a polypropylene matrix, a fiber-forming polymer, an elastomer and an antioxidant as a foam material. The foaming material is subjected to a primary melt blending process and a hot stretching process first, then subjected to a secondary melt blending process and cooling granulation and subjected to a pressing process, and a composite board is obtained. The composite board is subjected to supercritical fluid foaming process, and a composite heat insulation foam material is obtained.

Systems, components, and methods for low pressure delivery of plural component foam systems comprising solid particles from unpressurized supply sources

Various examples are provided related to polyurethane spray foam and its application. In one example, a method includes providing a system including a polyurethane spray foam (SPF) raw material supply, a fluid handling system, an air source, a heated hose, a whip hose, and a metal stray gun. Each of part A and part B material streams, either or both of which include particles, are generated by the system and conveyed by the system through the system and into a disposable mixing nozzle engaged with the metal stray gun. A mixture of the part A and part B material streams can be applied, via the disposable mixing nozzle, to a surface or into a mold at a pressure of 250 psi or less. A polyurethane spray foam coating generated from the method can be applied at a thickness of from about 0.5 inches to about 12 inches.