B29B7/603

Process for Forming a Powder

The present disclosure provides a process. The process includes (i) melt blending, in an extruder, (a) a polyolefin phase and (b) an aqueous phase in the presence of (c) at least one dispersant selected from an acrylic dispersant, a poloxamer dispersant, and combinations thereof; (ii) producing an interfacial tension from 0.1 dynes/cm to 25 dynes/cm; (iii) forming a polyolefin aqueous dispersion having from 25 wt % to 90 wt % solids content of dispersion; and (iv) removing the water from the polyolefin aqueous dispersion to form a powder. The powder has a mean volume average particle size from 10 m to 300 m, a sphericity from 0.92 to 1.0, a particle size distribution from 1 to less than 2, and a particle density from 98% to 100%.

GLASS FIBER-REINFORCED POLYPROPYLENE RESIN COMPOSITION

Provided is a polypropylene resin composition which has improved mechanical strength, has good appearance, and does not exhibit anisotropy in strength, while having a high glass fiber content ratio. The polypropylene resin composition having a high glass fiber content ratio is configured such that the glass fibers have a mass-average fiber length of 200 to 300 m, and that 60% by mass or more of the glass fibers relative to the mass of the glass fibers have fiber lengths in the range of 1100 m from the mass-average fiber length.

Systems and Methods for Making Thermoplastic Products and Compositions

Thermoplastic compositions useful for roadway markings may be produced using a continuous systems and process methods that can reduce costs and improve product quality. Systems may comprise a feed system comprising a plurality of feeders and a mixing system comprising a mixer and a smoothing system. Each feeder may be configured to discharge a material at a feed rate according to a selected product formulation The mixing system may be configured to receive, heat, and combine the materials to produce a thermoplastic material, and discharge the thermoplastic material at a determined discharge rate.

Spectral properties-based system and method for feeding masterbatches into a plastic processing machine

Disclosed is a system for optimizing a match between the color of an in-line part manufactured by a plastic product production machine and the color of a reference part by adjusting the concentration of masterbatch in the mixture of raw material fed to the plastic product production machine. The optimization of the color is based on interlaced spectra of the in-line part and reference part obtained using the same spectrometer, thereby eliminating the requirement for high accuracy spectrometer calibration and allowing a controller of the system to determine the rates at which the base masterbatches are added to the raw material in real time on the manufacturing floor while the plastic product production machine is being operated to manufacture in-line parts.

MIXING HEAD SYSTEMS AND METHODS FOR FUSED DEPOSITION MODELING

Disclosed are systems and methods for mixing a plurality of materials for fused deposition modeling printing. The systems and methods can both mix and extrude FDM printer filaments. The mixing can be accomplished via a mixing element rotating in a heated chamber of the extruder's hot-end in order to achieve the shear forces to induce mixing of the molten plastics. Further, the mixing element can provide a secondary driving mechanism to assist with extruding the extrudate.

Method and device for producing a thermoplastic granulate material
10688688 · 2020-06-23 · ·

In the production of thermoplastic granulate material, after mixing the starting materials, it is common in the state of the art for these materials to be kneaded and compressed in extruders, with subsequent granulation. According to the invention, no extruder is used, rather the starting materials for the thermoplastic granulate material are supplied directly to a double belt press after the mixing. Subsequently, the generated web-type to sheet-type body is processed into a granulate material by means of grinding, or is used as a web-type, sheet-type, strip-type or film-type intermediate product for the production of a further intermediate product or end products.

INSTALLATION AND METHOD FOR COEXTRUSION
20200180203 · 2020-06-11 ·

The installation is for producing a coextruded profiled element for tires that is made from rubber compounds of different compositions. The installation includes at least one first extruder having a screw with a longitudinal axis and at least one second extruder having a screw with a different longitudinal axis. An extrusion head is connected to each of the extruders by appropriate ducts. The feed inlet of each extruder is connected to the delivery orifice of a gear pump.

Processing aids for use in manufacture extruded polystyrene foams using low global warming potential blowing agents

A foamable polymeric mixture is provided that includes a polymer composition and at least one blowing agent. The blowing agent may comprise any blowing agents known not to deplete the ozone or increase the prevalence of global warming, such as CO.sub.2, HFO, HFC and mixtures thereof. The foamable polymeric mixture may further includes at least one processing aid comprising an organic phase changing material. The inventive foamable mixture is capable of processing at a pressure range of 800 to 1200 psi (5.5 to 8.3 MPa).

Apparatus for the production of a mixture of at least one gas and at least one liquid plastic component

An apparatus, for producing a mixture of at least one gas and at least one liquid plastic component, includes a mixing device that is connected, via a first pipe, to an introducing device for the at least one gas and is connected, via a second pipe, to a conveying device for the at least one liquid plastic component. The introducing device and the conveying device are piston pumps that have pistons.

INKJET 3D PRINTING OF MULTI-COMPONENT RESINS
20200156308 · 2020-05-21 ·

An inkjet printer includes a mixer and a metering system that system provides appropriate amounts of the resin's precursors into the mixer. The mixer thoroughly mixes these precursors and feeds the resulting resin to the printheads. The inkjet printer may include a cleaning system that removes residual resin during or after printing.