B29C48/0011

APPARATUS AND METHOD FOR MAKING OBJECTS FROM RECYCLED POLYMERIC MATERIAL
20230048314 · 2023-02-16 ·

An apparatus comprises a nozzle for supplying a flow of polymeric material, a separating element for separating a dose of polymeric material from the flow supplied by the nozzle, at least one mould for making an object by compression moulding the dose, at least one conveying element for conveying the dose separated by the separating element towards the mould. The conveying element is movable along a path in an atmospheric environment. The apparatus further comprises a recycling device intended for receiving a polymeric material to be recycled and for providing at its outfeed a melted regenerated polymeric material suitable for being moulded. The nozzle is connected to the recycling device so that the nozzle is fed with the regenerated polymeric material coming from the recycling device.

Homogeneous Sheet Excluding Polyvinyl Chloride
20230051092 · 2023-02-16 ·

Included is a homogeneous sheet, which excludes polyvinylchloride. The sheet includes a polyurethane, a synthetic rubber blend, and a filler. The synthetic rubber blend may include a pre-mix of a synthetic rubber and white oil.

Method for mitigating passive intermodulation

Materials and methods for mitigating passive intermodulation. A membrane for reducing passive intermodulation includes a first polymeric layer, a second polymeric layer, and a continuous metal layer encapsulated between the first and second polymeric layers. A self-adhesive radio frequency barrier tape includes a waterproof polymeric top layer, a metal-containing layer adhered by an adhesive layer to the polymeric top layer, a pressure sensitive adhesive layer adhered to the metal-containing layer, and a release liner on a bottom surface of the pressure sensitive adhesive layer. A method of mitigating passive intermodulation includes passing a probe over an area of interest, the probe being sensitive to an intermodulation frequency of interest, and identifying a suspected source of passive intermodulation when the amplitude of the probe output exceeds a threshold at the frequency of interest. The method further includes covering the suspected passive intermodulation source with a radio frequency barrier material.

METHODS AND APPARATUS FOR FORMING TREAD STRIPS IN CLOSED-LOOP SYSTEM

Particular embodiments of the invention include a closed-loop tread strip forming unit (100) and methods for forming tread strips using a closed-loop unit. Embodiments of such forming units include a tread strip extruder (110) located at a pre-cure end of the closed-loop tread strip forming unit. Such units include an uncured tread strip handling assembly (120) configured to transport the first uncured tread strip from the first tread strip extruder and to a first tread strip mold member (130). The unit further includes a curing press (150) having an inlet and an outlet, a pre-cure mold handling assembly (140) configured to insert the loaded tread strip mold member into the curing press, a post-cure mold handling assembly (160) configured to receive the loaded tread strip mold member from the outlet of the curing press, a return assembly (170) configured to transfer the first tread strip mold member to the pre-cure end to complete a closed-loop.

OPTICAL SHEET FORMING DEVICE AND OPTICAL SHEET FORMING METHOD

An extruding unit, a forming roll unit and a thick portion forming mechanism are provided. The extruding unit has an ejecting slit which ejects sheet-shaped molten resin. The ejecting slit includes a standard gap portion and an enlarged gap portion. The standard gap portion is formed as a gap having a constant size. The enlarged gap portion is formed as a gap larger than the standard gap portion in a position corresponding to a thick portion. The thick portion forming mechanism forms one or several thick portions which are thicker than other portion, in the sheet-shaped molten resin continuously in the extrusion direction.

Oral product

An oral product includes a body that is wholly receivable in an oral cavity. The body includes a mouth-stable polymer matrix, cellulosic fibers embedded in the mouth-stable polymer matrix, and a mouth-soluble binder dispersed in the mouth-stable polymer matrix.

Method of making a microporous material

A method for producing a microporous material comprising the steps of: providing an ultrahigh molecular weight polyethylene (UHMWPE); providing a filler; providing a processing plasticizer; adding the filler to the UHMWPE in a mixture being in the range of from about 1:9 to about 15:1 filler to UHMWPE by weight; adding the processing plasticizer to the mixture; extruding the mixture to form a sheet from the mixture; calendering the sheet; extracting the processing plasticizer from the sheet to produce a matrix comprising UHMWPE and the filler distributed throughout the matrix; stretching the microporous material in at least one direction to a stretch ratio of at least about 1.5 to produce a stretched microporous matrix; and subsequently calendering the stretched microporous matrix to produce a microporous material which exhibits improved physical and dimensional stability properties over the stretched microporous matrix.

Extrusion press with electro-hydrostatic control system
11559831 · 2023-01-24 · ·

The present invention relates to an extrusion press (10, 20, 30) with a press cylinder (111), the press cylinder (111) being driven with an electro-hydrostatic control system (104) for a power transmission and being connected to a separate drive (120, 400) for rapid traverse, with a container (115), wherein the container (115) is connected to a hydraulic cylinder (117) for a power transmission and to a further separate drive (119, 300) for rapid traverse, with a hydraulic cylinder (101) with a locking device (103) for driving a shearing tool (102), wherein the hydraulic cylinder (101) is connected to the electro-hydrostatic control system (104), and wherein the press cylinder (111) in the power transmission and the hydraulic cylinder (101) for driving a shearing tool (102) are controlled alternately via the common electro-hydrostatic control system (104).

METHOD AND APPARATUS FOR THERMOFORMING AN ARTICLE

A method for thermoforming an article includes extruding a sheet of material, conditioning the sheet with a roller, thermoforming the sheet to provide a web, and cutting the web to provide the article.

Methods and machines for making oral products

A method of forming an oral product includes extruding a mixture, conveying the extruded mixture through one or more pairs of forming rollers, and cutting the extruded mixture into one or more oral products. The mixture can include polymer and at least one flavorant, sweetener, active ingredient, or combination thereof. The extruded mixture forms an extrudate having a predetermined cross-sectional shape. The one or more pairs of forming rollers abut to define a passage there between as each forming roller rotates. The passage has a cross-sectional shape corresponding to the predetermined cross-sectional shape. The method can be performed using a machine including an extruder, one or more pairs of forming rollers, and a cutting device.