B29C67/24

System and method for generating a three-dimensional body
11179882 · 2021-11-23 ·

A system (1) for constructing a component, contains a trough (13) with an at least partly transparent base (23), an at least partly stretchable semipermeable layer (7), for receiving a photosensitive substance (5), and a phase (9) arranged below the semipermeable layer (7) and forms an intermediate layer (11) within the photosensitive substance (5). A light source (25) is below the trough base (23) for curing the photoreactive substance (5) in some regions. A construction platform (31) is above the semipermeable layer (7) and can be lifted and lowered for receiving the component (3), as well as with a driver (15) which extends from the semipermeable layer (7) in the direction of the construction platform (31) and can be moved relative to the trough base (23) to convey the photoreactive substance (5) into a gap (20) between the construction platform (31) and the semipermeable layer (7).

Process for Strengthening Porous 3D Printed Objects
20210347113 · 2021-11-11 · ·

A composite body includes a bound mixture, a resin and a coating. The bound mixture includes a binder and a plurality of particles. The resin fully infiltrates the bound mixture such that the resin fully infiltrates an entire thickness of the bound mixture. The composite body is formed by combining a plurality of particles with a binder to form a bound mixture and infiltrating the bound mixture with a resin to a depth such that substantially an entire thickness of the bound mixture contains the resin. The coating defines an outer layer of the composite body.

PROCESSES FOR IN-MOLD COATING SYSTEMS FOR MOLDING, AND PRODUCTS FORMED THEREFROM
20210348020 · 2021-11-11 ·

Disclosed are processes for In-Mold coating of a substrate. The processes include: introducing a curable composition to a mixhead at a first elevated pressure, the curable composition comprising a first polymeric component and a second polymeric component, the introducing of the curable composition to the mixhead comprising mixing the first and second polymeric components by impingement to form an intermediate composition; introducing the intermediate composition to a secondary mixer, the introducing of the intermediate composition to the secondary mixer comprising mixing the intermediate composition to form a coating composition; and introducing the coating composition into a mold containing a substrate to form a curable coating on a surface of the substrate.

Mold for manufacturing slab and manufacturing method thereof
11161277 · 2021-11-02 · ·

The present disclosure herein relates to a mold for manufacturing a slab. More particularly, the mold includes a first fabric layer, a first rubber layer disposed on the first fabric layer, a second fabric layer disposed on the first rubber layer, and a second rubber layer disposed on the second fabric layer. Here, the second rubber layer includes a base part and a frame part extending from an edge of the base part. Also, the base part and the frame part are integrated with each other.

OVEN PROVIDED WITH A MEASUREMENT SYSTEM INSIDE THE FIBROUS MAT

An oven for heating a fibrous mat includes a first conveyor for conveying the mat in a forward direction, and a measurement system inside the mat, including a sensor mounted on the first conveyor and adapted to move, in a transverse direction of the mat, between a first retracted position inside the conveyor and a measurement position inside the mat under the effect of an activation system, the measurement system being such that the sensor is connected by a mechanical transmission system to a finger projecting on a lateral side of the first conveyor, and the activation system includes at least one contact surface located facing the lateral side of the conveyor and adapted to engage with the finger, when it moves in the forward direction in order to move the sensor from its retracted position to its measurement position by the mechanical transmission system.

Method for manufacturing articles in the form of a slab or block with a hardening binder, and articles thus obtained
11753336 · 2023-09-12 ·

In a method for manufacturing articles in the form of a slab or block, the articles are obtained from an initial mix comprising aggregates and a binder. Synthetic aggregates and fillers have a hardness greater than or equal to 5 Mohs, and contain silicon dioxide substantially only in amorphous form, the silicon dioxide in crystalline form being present in quantities of less than 1% by weight.

Monitored mixture and dosing head
11794394 · 2023-10-24 · ·

The invention relates to a high-pressure mixing, dosing and recirculation head for injection or casting reaction molding, said high-pressure mixing, dosing and recirculation head comprising a head body, a mixing chamber, obtained in the head body wherein a valve element or mixing valve slides and in fluid communication with a supply duct, and a self-cleaning element comprising a scraping portion, said self-cleaning element being structured to slide in said supply duct, as well as comprising an apparatus for controlling and commanding mixing, supply and recirculation comprising a plurality of sensors and transducers mounted on board of the head body and of the components parts of the head connected thereto to detect and transform representative physical quantities of at least one operational status of said high-pressure mixing, dosing and recirculation head into electrical signals and an electronic control and storing system adapted to synchronously control and scan said sensors and transducers and adapted to receive and process said electrical signals indicative of said at least one operational status, at the beginning and during the operational phases of said high-pressure mixing, dosing and recirculation head to compare them with each other and with electrical signals representative of a predetermined reference operational status. The invention also relates to a high-pressure mixing, dosing and recirculation method for injection or casting reaction molding.

Method for producing a three-dimensional motor vehicle interior element through which light can shine, and a motor vehicle interior element

A method for producing a three-dimensional motor vehicle interior element through which light can shine and which has an observer-side surface is produced in two steps. In a first step a three-dimensional transparent substrate is produced from a cross-linked polymer. In a second step the substrate is provided on an observer-side surface of the substrate with a coloring through which light can shine, at least in a subregion.

Method for the fabrication of three-dimensional objects and apparatus for same

Methods and apparatus comprising a dewetting phase and a polymerization liquid that are immiscible, and can be used for the formation of three-dimensional objects, wherein the method does not require a dead zone. Additionally, methods and apparatus that employ an optically transparent cooling apparatus to mitigate heat generated during the fabrication process, and the use of a mobile phase to provide a shearing interface to reduce interfacial adhesive forces.

Method for the fabrication of three-dimensional objects and apparatus for same

Methods and apparatus comprising a dewetting phase and a polymerization liquid that are immiscible, and can be used for the formation of three-dimensional objects, wherein the method does not require a dead zone. Additionally, methods and apparatus that employ an optically transparent cooling apparatus to mitigate heat generated during the fabrication process, and the use of a mobile phase to provide a shearing interface to reduce interfacial adhesive forces.