A corner trim material that is made of a material that will bond with current industry mastics such as all purpose joint compounds, resists impact, resists abrasion, and readily accepts common coatings such as drywall mud, texture and paints. The surface of this material generally does not need to be covered by any secondary fiber based material such as paper to improve bonding or coating on the inside or outside. The material generally consists of a polymer mixed with a fibrous material like pulp or glass fiber. A corner trim piece can be directly extruded from the mix. The corner trim piece can have a center hinge, can be bullnose, and the flanges can optionally have holes or optionally be coated with adhesive.

The present invention addresses the problem of providing a molding method capable of molding a molded article having excellent strength and reducing manufacturing costs by shortening a molding cycle when obtaining a molded article from a fiber-reinforced thermoplastic resin by compression molding. The present invention relates to a molding method which obtains a fiber-reinforced thermoplastic resin by kneading a thermoplastic resin and a reinforcing fiber (14), and a molded article from the fiber-reinforced thermoplastic resin by compression molding. The molding method of the molded article comprising the fiber-reinforced thermoplastic resin according to the present invention comprises: a molding step for obtaining a first molded article from a predetermined amount of a fiber-reinforced thermoplastic resin through a molding die (4); a carrying-in step for opening the molding die (4), taking out the first molded article, and inserting the first molded article into a cooling die (5); and a compression cooling step for cooling the first molded article by compressing the first molded article through the cooling die (5).

A method for producing carbon fiber reinforced resin molded article of the present invention includes press-molding a mixture-made body including carbon fiber and thermoplastic resin to produce the article that is composed of CFRP. The method further includes perforating pores into the mixture-made body, before press-molding mentioned above. As, in perforating, at least the pores are formed so as to penetrate through a hardened part of a surface of the mixture-made body, the article made of the CFRP that does not have poor appearance, such as whitening or marble pattern, can be produced.

Disclosed is an extrusion system including a cooled extruder, fixable to a pressing carriage of a machine for quick prototyping with thread of filler material, including: a unit for controlled and localized heating of the filler material, a unit blowing compressed air onto a zone of the extruder to be cooled, immediately upstream of the melting zone, with a predetermined flow rate, a channel supplying the thread of filler material. The extruder includes a nozzle whose body includes a melting zone, and with an outlet end conveying the material on a pressing plane. The nozzle is integral with a heating block. The nozzle is made of a material having high wear and corrosion resistance and good workability. At least at the melting zone of the nozzle is internally processed with a surface finishing having a roughness 0.2-2.5 pm or less, which ensures a good flowabitly of the material.

Methods and systems of the present invention use mixed textile feedstock, which may include post-consumer waste garments, scrap fabric and/or other textile materials as a raw feed material to produce isolated cellulose and other isolated molecules having desirable properties that can be used and be used in the textile and apparel industries, and in other industries. A multi-stage process is provided, in which mixed textile feed material is subjected to one or more pretreatment stages, followed by at least two pulping treatments for isolating cellulose molecules and other molecular constituents, such as polyester. The isolated cellulose and polyester molecules may be used in a variety of downstream applications. In one application, isolated cellulose and polyester molecules are extruded to provide regenerated cellulose fibers and regenerated polyester fibers having desirable (and selectable) properties that are usable in various industrial applications, including textile production.

An apparatus is disclosed that includes a printer cartridge having a cartridge barrel for containing print material, an extruder having a nozzle and a lever arm, the lever arm including a plunger, the plunger having an inlet port, and a pneumatic system including a pneumatic piston, a solenoid valve and a Y-connector, wherein the pneumatic piston is configured to receive pressurized air from (1) the Y-connector to lower the lever arm to align the inlet port with an entry point of the extruder enabling print material to flow into the extruder through the inlet port, and (2) the solenoid valve to raise the lever arm to misalign the inlet port and the entry point to prevent additional print material to flow into the extruder. The apparatus further includes a build platform, and a plurality of rods and screws for guiding the extruder to dispense print material on the build platform.

Methods of manufacturing an outdoor building material, and outdoor building materials thereof. A polymer matrix and a first reinforcement material may be provided. The polymeric matrix and the first reinforcement material may be shredded to form a shredded mixture. A second reinforcement material may be combined with the shredded mixture to form a combined mixture. The combined mixture may be heated and extruded to form the outdoor building material, in which the first and second reinforcement materials are dispersed in the polymer matrix. At least a portion of the polymer matrix may be derived from waste agricultural film. At least a portion of the first reinforcement material may be post-consumer waste in the form of clothing, carpet, curtains, fabric, or combinations thereof. The second reinforcement material may consist of at least one of char, biochar, and carbon black.

The present disclosure relates to extruder systems and processes thereof. In at least one embodiment, a method of forming a thermoplastic vulcanizate (TPV) composition includes introducing a thermoplastic polymer to an extruder through a feed throat. The elastomeric polymer is introduced to a melt feeder and an elastomeric polymer melt including the elastomeric polymer is formed. The melt feeder is coupled to the extruder. Elastomeric polymer melt from the melt feeder is introduced to the extruder. The thermoplastic polymer and the elastomeric polymer melt are fed separately to the extruder. The thermoplastic polymer and the elastomeric polymer melt in the extruder are mixed with a plurality of intermeshing screws having a plurality of mixing zones.

This disclosure relates generally to corrugated pipe, and more particularly to corrugated pipe with an outer wrap. In one embodiment, a pipe includes an axially extended bore defined by a corrugated outer wall having axially adjacent, outwardly-extending corrugation crests, separated by corrugation valleys. The pipe also includes an outer wrap applied to the outer wall. The outer wrap may include fibers and plastic. The outer wrap may span the corrugation crests producing a smooth outer surface.

A production method of producing a fiber-reinforced resin molding includes: kneading, in a kneader, molten thermoplastic resin with opened reinforcing fibers obtained by opening a bundle of reinforcing fibers, to produce a kneaded mixture; and placing or charging the kneaded mixture into a molding device to produce a fiber-reinforced resin molding.