B29C2791/006

FOAM INSULATION WITH THERMOFORMABLE FILM COATING AND PROCESS FOR MANUFACTURE

A thermal/acoustic insulation product, such as for an aircraft, comprising a block of flexible, open-celled, cellular foam having a predefined shape and having a thermoformed amorphous film covering that completely envelops the foam block. A process for making the insulation product includes first cutting the block of foam to a predefined shape, such as a shape suitable for placement in an area of an aircraft in need of insulation. Then, a first sheet of film is heated to its melt point and conformed to a first surface area of the block, and a second sheet of film is heated to its melt point and conformed to a second surface area of the block, wherein the first film and the second film are joined to one another at one or more seams. The insulation product may then be installed in an aircraft.

Biodegradable and Industrially Compostable Injection Molded Microcellular Flexible Foams, and a Method of Manufacturing the Same
20220379528 · 2022-12-01 · ·

A process for injection molded microcellular foaming various flexible foam compositions from biodegradable and industrially compostable bio-derived thermoplastic resins for use in, for example, footwear components, seating components, protective gear components, and watersport accessories wherein a process of manufacturing includes the steps of: producing a suitable thermoplastic biopolymer or biopolymer blend; injection molding the thermoplastic biopolymer or biopolymer blend into a suitable mold shape with inert nitrogen gas; controlling the polymer melt, pressure, temperature, and time such that a desirable flexible foam is formed; and utilizing gas counterpressure in the injection molding process to ensure the optimal foam structure with the least amount of cosmetic defects and little to no plastic skin on the outside of the foamed structure.

PROCESS FOR MANUFACTURING A BICYCLE SADDLE

The invention regards a process for manufacturing a bicycle saddle, which provides a central through channel as well as a hull with a through hole (4′); a polyurethane layer and a liner.

By means of this process it is possible to make sure that, unlike the saddles of the state of the art, said central through channel is completely devoid of the edge present around the aforementioned, with significant advantages from both an aesthetic and functional point of view for the user.

Plural blow molding with servo controls

A system for forming a container from a preform includes a first mold having a plurality of first portions that cooperate to define a first internal surface against which the preform is blown for forming a first form. The system also includes a second mold having a plurality of second portions that cooperate to define a second internal surface against which the first form is blown for forming a second form. Also, the system includes a mold servo motor that actuates the plurality of first portions relative to each other and/or actuates the plurality of second portions relative to each other. Furthermore, the system includes a controller that controls the mold servo motor for controlled actuation of the plurality of first portions and/or the plurality of second portions.

METHOD FOR MANUFACTURING FIBER-REINFORCED RESIN TUBE BODY

A method for manufacturing a fiber-reinforced resin tube body includes: a preparing step of preparing a cylindrical expandable body having fiber wound therearound; an installing step of installing the expandable body in a mold after the preparing step; a flowing step of flowing resin into the mold, in which the expandable body is placed, after the installing step; and an expanding step of expanding the expandable body toward an inner wall of the mold after the flowing step.

Formation of Thermoplastic Parts
20170341289 · 2017-11-30 ·

A method and apparatus is presented. A portion is cut from a thermoplastic sheet of a first thermoplastic material based on a three dimensional model. The portion is secured to a mold. The portion and the mold are heated under vacuum to form a structure. The structure may take the form of a protective covering. In some illustrative examples, the mold may be formed of a second thermoplastic material based on the three dimensional model using additive manufacturing.

Fibre flattening
11673299 · 2023-06-13 · ·

A method of forming a fibre article, comprising: providing a former having a contoured forming surface; locating a fibre preform between a first diaphragm and a second diaphragm, the second diaphragm being offset from the forming surface; drawing a vacuum between the first and second diaphragms so as to hold the preform captive between the diaphragms; displacing the second diaphragm towards the former so as to bring the second diaphragm into partial contact with the former; drawing a vacuum between the second diaphragm and the former so as to bring at least a part of the second diaphragm adjoining the preform into conformity with the forming surface; and setting the preform in its configuration; wherein: the fibre preform comprises one or more substantially inextensible fibres extending linearly in a first direction; the forming surface comprises a concavity and prominences on either side of the concavity; and the step of bringing the second diaphragm into partial contact with the former comprises bringing the second diaphragm into contact with the prominences whilst the second diaphragm does not fully contact the concavity and with the substantially inextensible fibres extending from one of the prominences to the other.

Mold for encapsulating a Pin-Fin type power module and method for manufacturing a power module
11673302 · 2023-06-13 · ·

A mold for encapsulating a Pin-Fin type power module with resin is disclosed. The power module includes a DBC or IMS, power chips and multiple terminals provided on a first surface of the DBC or IMS and a Pin-Fin structure provided on a second surface of the DBC or IMS. The mold further includes: a cavity for containing the power module; multiple terminal protecting elements corresponding to the terminals, respectively, each for receiving at least a part of a terminal; and an injection hole provided on the bottom of the mold or on the side wall of the mold, The first surface faces the bottom of the mold and the injection hole is below the first surface when the power module is placed in the cavity. A method for manufacturing a power module is also provided.

Crystal clear high barrier thermoformed plastic bottle
11673378 · 2023-06-13 ·

A transparent thermoformed high barrier plastic bottle is provided for use in storing food and beverages, personal care products, health care products, and other applications that require excellent transparency and barrier properties. The transparent thermoformed high barrier plastic bottle includes first and second outer layers formed using a transparent polyester or polyester copolymer; an inner nanolayer sequence including a plurality of nanolayers a) including ethylene vinyl alcohol, alternating with nanolayers b) including at least one of ethylene ethyl acrylate, low density polyethylene and linear low density polyethylene, each of the nanolayers b) having a degree of crystallinity less than about 45%; and adhesive layers between each of the two outer layers and the inner nanolayer sequence. A method for producing a transparent thermoformed high barrier plastic bottle is also provided.

Heat-resistant food container and its manufacturing method

This invention provides a food container which can be manufactured cheaply by using inexpensive general PET resin or further inexpensive PET resin for fiber or recovered PET flakes, and nevertheless, which has a high heat resistance up to 250° C., and the container is obtained by adding a chain extender and a compatibilizer and talc to PET resin, charging the mixture into an extruder 30 having two or more vent holes, degassing under a condition where the PET resin is melted with heating by sucking at a high vacuum of −99.99 kPa or lower from the vent holes 33, 34, thereafter, forming a sheet by extrusion molding, pressure-forming with vacuum the sheet by a thermoforming machine, forming the container by keeping in a mold at 100-220° C. The container has a total of the content of crystal portion represented by the following formula and the content of talc being 25% by weight or more.