B29C48/834

METHOD FOR PRODUCING A THERMOPLASTIC MOULDING COMPOUND
20190193302 · 2019-06-27 ·

A method for producing a thermoplastic moulding compound by means of an extruder (10), which comprises at least one feed zone (20), at least one mixing section (30), at least one venting section (40) and at least one discharge zone (50), wherein in the at least one feed zone (20) a water-containing first component and a second component are supplied, in the at least one mixing section (30) the thermoplastic moulding compound is mixed and contained water is evaporated, in the at least one venting section (40) water vapour is removed from the moulding compound and in the at least one discharge zone (50) the moulding compound is discharged. At least one of the mixing housings (31, 32) is kept at a temperature that is equal to or lower than the temperature of the moulding compound within the mixing section (30).

Multilayer films and methods of making the same

Disclosed are multilayer films which can provide desired low-temperature bag drop performance suited for laminate freezer film packaging.

EXTRUSION ASSEMBLY FOR AN ADDITIVE MANUFACTURING SYSTEM

An extrusion assembly, a method of constructing an extrusion assembly, and an additive manufacturing system including an extrusion assembly are disclosed. The extrusion assembly includes an extrusion die; a channel having an inlet and an outlet, which is in fluid communication with the extrusion die; and a heating element that melts a filament material drive through the channel so that the melted material is extruded by the extrusion die. The heating element can be helically wound about the channel or extend parallel to the channel, among other configurations. Further, the extrusion assembly includes a temperature sensor that is positioned adjacent to the channel between the extrusion die and the heating element. The channel, heating element, and temperature sensor are enclosed together within a sheath as a single integral unit. An additive manufacturing system utilizing the extrusion assembly can include a drive assembly, a support assembly, and a controller.

SCREW MACHINE AND METHOD FOR THE PROCESSING OF MATERIAL TO BE PROCESSED
20180326646 · 2018-11-15 ·

A screw machine includes an inductive heating device for processing of material to be processed. The inductive heating device is used to heat the material in a heating zone. In the heating zone, at least one housing portion is made of an electromagnetically transparent material at least partly, the material being non-magnetic and electrically non-conductive, whereas at least one treatment element shaft is made of an electrically conductive material at least partly. The inductive heating device includes at least one coil formed integrally with a component of the at least one housing portion, in particular in such a way as to form a hybrid component. During the processing of the material, the inductive heating device generates an alternating magnetic field that produces eddy current losses in the at least one treatment element shaft, the eddy current losses leading to a temperature increase of the at least one treatment element shaft.

Planetary roller extruder with planet spindles and contact ring
10112336 · 2018-10-30 · ·

A planetary roller extruder with planetary spindles and stop ring. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. 1.72(b). As stated in 37 C.F.R. 1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading Abstract of the Disclosure. The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims. Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner.

Plant and method for making continuous elastic yarns made of silicone material and continuous elastic yarn made of silicone material thus obtained
10099416 · 2018-10-16 · ·

A plant and method for making continuous yarns made of silicone material comprises at least an extrusion station, into which the material is introduced in an amorphous condition, and extrusion means which cause the material to exit from the extrusion station along an extrusion axis. The plant also comprises a vulcanization station, located downstream of the extrusion station, at a determinate distance therefrom, in which the continuous yarn is vulcanized in a direction of treatment. The plant also comprises a drawing unit, disposed downstream of the vulcanization station.

Colorant dispersion in polymer materials using solid-state shear pulverization

Methods for improved colorant dispersion in polymer materials using solid-state shear pulverization, as compared to mixing techniques of the prior art, to address concerns relating to colorant agglomeration, plating-out and the like.

PLANETARY ROLLER EXTRUDER
20180281263 · 2018-10-04 ·

A planetary roller extruder. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. 1.72(b). As stated in 37 C.F.R. 1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading Abstract of the Disclosure. The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims. Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner.

Modular heating and cooling elements for controlling temperature of materials in a flowable state
10081124 · 2018-09-25 ·

An apparatus for controlling temperature of materials in a flowable state as they flow through a barrel. The apparatus includes a band surrounding the barrel having a plurality of connected blocks, each block having an inner surface in communication with the barrel. One or more of the connected blocks has a slot therein and has a removable, temperature controlling mechanism slidably received in the slot. A flexible cover surrounds an outer surface of the band with the flexible cover having a pouch for receiving a temperature sensing element.

METHOD FOR PROCESSING PRODUCTS IN AN EXTRUDER
20180126623 · 2018-05-10 · ·

The invention relates to the production of PSA in a planetary gear extruder. During filling and after passing a passage on a dispersing ring using a lateral arm extruder, the products are degassed.