An extruder includes an extruder barrel module, an extruder feeder module, a screw motor module, and an electronics module. The extruder barrel module includes an axially extending barrel in which an extruder barrel screw is removably receivable. The extruder feeder module is removably connectable to the extruder barrel module, and has an axially extending flow passage having a feedstock outlet end and a screw motor module mounting end. The screw motor module is removably connectable to the extruder feeder module, and has a motor drivingly connectable with a screw in the flow passage of the extruder feeder module. The electronics module is electrically connectable with the screw motor module and mechanically removably mounted as part of the extruder.

An extruder includes an extruder barrel module, an extruder feeder module, a screw motor module, and an electronics module. The extruder barrel module includes an axially extending barrel in which an extruder barrel screw is removably receivable. The extruder feeder module is removably connectable to the extruder barrel module, and has an axially extending flow passage having a feedstock outlet end and a screw motor module mounting end. The screw motor module is removably connectable to the extruder feeder module, and has a motor drivingly connectable with a screw in the flow passage of the extruder feeder module. The electronics module is electrically connectable with the screw motor module and mechanically removably mounted as part of the extruder.

A method for rotary die cutting. The method may include providing, to an accumulator, an input comprising a melt. The method may include processing, by the accumulator utilizing a set of rolls, the melt to form a sheet of material. The method may include providing, from the accumulator, the sheet of material to a dandy roll. The method may include providing, from the dandy roll, the sheet of material to a rotary die. The method may include cutting, by the rotary die, a product from the sheet of material. The method may include providing, from the rotary die, the product to a stacker.

A method for manufacturing bulked continuous carpet filament, the method comprising: (1) reducing a chamber pressure within a chamber to below about 5 millibars; (2) after reducing the chamber pressure to below about 5 millibars, providing a polymer melt to the chamber; (3) separating the polymer melt into at least eight streams; (4) while the at least eight streams of the polymer melt are within the chamber, exposing the at least eight streams of the polymer melt to the chamber pressure of below about 5 millibars; (5) after exposing the at least eight streams of the polymer melt to the chamber pressure of below about 5 millibars, recombining the at least eight streams into a single polymer stream; and (6) forming polymer from the single polymer stream into bulked continuous carpet filament.

A disclosed process for producing granular infill material for a synthetic turf surface includes providing scraps of a composite material comprising a textile support. A coating of the textile support includes a polymeric material. A weight percentage of the textile support is greater than or equal to 5% of a total weight of the composite material. The production process includes grinding the scraps to obtain scrap pieces, preparing a mixture comprising the scrap pieces, and heating the mixture to obtain a blend comprising the polymeric material in a softened state and pieces of the textile support dispersed in the polymeric matrix. A plurality of solid granules may be obtained from the blend to make the granular infill material. Each granule includes a polymeric matrix including the polymeric materials and a reinforcing filler dispersed in the polymeric matrix. The reinforcing filler may include pieces of the textile support.

An extruder screw includes a screw main body, conveyance portions, barrier portions, and paths. The raw materials, the conveyance of which is limited by the barrier portions, flow in from the entrance. The raw materials flowing in from the entrance flow through the paths in an opposite direction to a conveyance direction of the conveyance portions. The exit is opened in the outer circumferential surface of the screw main body at a position on an upstream side in the conveyance direction in the conveyance portions in which the entrance is opened.

Provided is an electrically conductive resin composition with which the characteristics inherent in a thermoplastic resin are easily retained and which exhibits more excellent electrical conductivity even if the blending amount of an electrically conductive filler is small. This electrically conductive resin composition contains a thermoplastic resin, such as a polycarbonate or a polyolefin, and an electrically conductive filler, such as a carbon nanotube. This electrically conductive resin composition further contains a dye, such as a perinone-based dye or a disazo-based dye, which is a component for improving electrical conductivity, and this electrically conductive resin composition can be obtained by kneading or molding a raw material mixture containing a thermoplastic resin, an electrically conductive filler, and a dye under a condition of a temperature equal to or higher than the melting point of the thermoplastic resin.

A resin composition suitable for profile extrusion processing is provided. Based on the total weight of the resin composition, the resin composition includes 40 wt. % to 92.1 wt. % of polyester; 2 wt. % to 15 wt. % of modifier, 0.2 wt. % to 1.5 wt. % of tackifier, and 0.1 wt. % to 40 wt. % of filler.

The invention relates to a process for the production of articles, exemplarily a plastic article, by means of an extruder (1) to which a first plastic composition of a first main component and at least one associated minor component is supplied from a first group of dosing stations (21, 24). According to the invention, during the production time of a first production order there is prepared a second group of dosing stations (31, 33) at the extruder for a second production order for which a second plastic composition of a second main component and at least one associated minor component that is different from the first plastic composition has to be supplied to the extruder. After completion of the first production order it is reset to the second production order by terminating the supply of the first plastic composition by closing a first shut-off device (8) and starting the supply of the second plastic composition by opening a second shut-off device (8′).

This concerns a screw pump for the extrusion of plastic materials, which is extremely compact and so it can be inserted in-line in a plastic material filtration system, encapsulating within it a duct parallel to the axis of the screw.