B29C2035/0861

Plant and method for drying and solid state polycondensing of polymeric material
10500764 · 2019-12-10 ·

A plant for drying and solid state polycondensing a granular moisture-containing polymeric material includes a conduit feeding material to be treated longitudinally, a treatment zone located along the conduit, a blower of an inert gas into the conduit, and a radiating device emitting an alternating electromagnetic field in the radio-frequency band to dry and upgrade the material. The radiating device includes applicators, located at the treatment zone and external to the conduit in longitudinally offset positions, which are connected to the terminals of an electromagnetic wave generator and include pairs of opposed radiating elements that generate an alternating electromagnetic field in the conduit, with field lines at least partially parallel to the direction of feed of the material, and that define magnetic dipoles with opposite polarities along the conduit. A method of drying and solid state polycondensing a polymeric material in granular form obtained by polycondensation using the plant.

In situ monitoring of direct ink write process using electromagnetic resonant coupling

In the additive manufacturing process, a monitored or controlled mixture of materials is deposited to form an additive manufactured product by delivering the mixture of materials through a material flow path while using an excitation source to introduce electromagnetic energy into the material flow path using a circuit element having inductive or capacitive reactance disposed adjacent the material ejecting orifice. The excitation source produces an electromagnetic field condition within the material flow path that is responsive to at least one of the permeability and permittivity properties of a space within the material flow path. A sensing means coupled electrically or magnetically to the excitation means is responsive to the electromagnetic field condition and provides at least one control parameter based on the electromagnetic field condition that may be used to control the composition of the mixture of materials by adjusting proportions of constituent materials.

Lipophilic laminate, manufacturing method therefor, and article

The present invention provide a lipophilic laminate including a substrate and a lipophilic resin layer on the substrate, wherein the lipophilic resin layer has micro convex portions or micro concave portions in a surface thereof and contains filler particles, and when parts of the filler particles are exposed from the lipophilic resin layer, the rate of exposed portions of the filler particles relative to the surface of the lipophilic resin layer is 0.1% or more.

Bedding Product Comprising a Foamed Latex Layer, Slab of Such Foamed Latex Layer for Cutting a Bedding Product Therefrom and Method of Manufacturing Thereof
20190328148 · 2019-10-31 ·

A method for producing a bedding product comprising at least a foamed latex layer, said method comprising the steps of: pouring liquid latex foam on a conveyor belt; vulcanizing said liquid latex foam in a vulcanization station to obtain u vulcanized latex foam slab; cutting said vulcanized latex foam slab to a desired length and/or width, characterized in that for at least partially vulcanizing said liquid latex foam electromagnetic waves with a frequency ranging between 1 and 50 Mhz are used.

MICROWAVE WELDING OF ELASTOMER POWDER
20190299494 · 2019-10-03 · ·

A process for producing moldings from a powder based on thermoplastic elastomers, wherein the powder is placed on a mold or in a mold and by means of electromagnetic radiation is heated to an extent such that the powder undergoes at least partial melting and thus fuses to afford the molding and the frequency of the electromagnetic radiation is between 0.01 GHz and 300 GHz.

PROCESS AND APPARATUS FOR FABRICATION OF THREE DIMENSIONAL OBJECTS
20190291338 · 2019-09-26 ·

A fabrication process and apparatus for producing three-dimensional objects by depositing a first polymer layer, printing a first ink layer on to the first polymer layer, depositing a second polymer layer on to the first ink layer, and printing a second ink layer on to the second polymer layer. The deposition and printing steps may be repeated until a three-dimensional object is formed. The inks used to form at least one of the first and second ink layers may include dyes or pigments so that the three-dimensional object may be a colored three-dimensional object.

Method of manufacturing a particle foam part, especially a cushioning element for sportswear or sporting goods

The present invention relates to a method for manufacturing a particle foam part, in particular a cushioning element for sportswear, such as a shoe sole, or a cushioning element, which has been produced by such a method, in particular a shoe sole. The method for manufacturing a cushioning element for sportswear such as a shoe sole, may comprise the steps of feeding foam particles into a mold cavity of a mold tool, and welding of the foam particles in the mold cavity while applying a predetermined pressure, wherein the foam particles comprise a fraction of at least 10% by weight of recycled, shredded foam particles (regenerated material) and the welding of the foam particles is effected by means of electromagnetic waves.

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.

Process and apparatus for fabrication of three dimensional objects
10357918 · 2019-07-23 · ·

A fabrication process and apparatus for producing three-dimensional objects by depositing a first polymer layer, printing a first ink layer on to the first polymer layer, depositing a second polymer layer on to the first ink layer, and printing a second ink layer on to the second polymer layer. The deposition and printing steps may be repeated until a three-dimensional object is formed. The inks used to form at least one of the first and second ink layers may include dyes or pigments so that the three-dimensional object may be a colored three-dimensional object.

Method and system for producing a reinforcing bar, and resulting reinforcing bar
12011888 · 2024-06-18 · ·

A method for producing a reinforcing bar by pultrusion, the method comprising the steps of: a) providing a source of fibres; b) assembling the fibres into a bundle; c) impregnating the bundle with a thermosetting resin; d) eliminating excess resin from the bundle; e) compressing the bundle in a centripetal manner; f) exposing the bundle to a radiant energy source; g) spraying particles onto a surface of the bundle; and h) exposing the bundle to radiation in order to initiate, on the surface of same, the polymerisation of the resin. The present invention also concerns a system provided with corresponding devices in order to be able to implement the method. The present invention also concerns a reinforcing bar obtained with the described method and/or system.