A method of recovering polymer from a three-dimensional printed object can include dissolving a polyamide polymer of a three-dimensional printed object in a polyamide-dissolving solvent to generate dissolved polyamide polymer from the three-dimensional object, where the three-dimensional printed object can include a particulate fusing compound and from about 90 wt % to about 99.9 wt % of the polyamide polymer; separating the particulate fusing compound from the polyamide-dissolving solvent and the dissolved polyamide polymer; and evaporating the polyamide-dissolving solvent from the dissolved polyamide polymer.

A method of manufacturing the foamed shoe material and semi-finished product including the following steps. Step S1: a foamable material is injected into a cavity of a blank mold to solidify, thereby generating a semi-finished product of the shoe material and a runner waste that are unfoamed. The runner waste could be shed for reusing directly as the foamable material without a granulating process. Step S2: the semi-finished product is cooled down and put into a cavity of the foaming mold, and the semi-finished product is evenly foamed in the cavity of the foaming mold to obtain a shoe material wherein the waste generated during the method of manufacturing the foamed shoe material could be effectively reused, and the yield rate of the shoe material thereby enhanced.

Process and apparatus for recovering a product stream from a waste plastic feedstock and reducing the endpoint of the product stream is provided. A polymer oil is produced as a product stream by pyrolyzing the waste plastic feedstock in a pyrolysis reactor to produce a pyrolysis reactor effluent and passing the reactor effluent stream to a contact condensing column. In the contact condensing column, the pyrolysis reactor effluent stream is separated into a vapor product stream and a liquid product stream. The vapor product stream is recovered from the condensing column and the liquid product stream is passed back to the pyrolysis reactor for further reduction.

Provided are carbon fibers rich in surface functional groups, which has been recovered by thermolysis and anodization of a carbon-fiber-reinforced composite material. Also provided is a carbon-fiber-reinforced resin composition characterized by having excellent mechanical characteristics and an excellent surface appearance at a low cost as a result of using said carbon fibers.

A secondary shredder can include a rotor assembly that employs a modular rotor design. Each rotor of the rotor assembly can include a number of blades that are symmetrical around a horizontal and a vertical axis. Each rotor can include a number of radial extensions forming gaps into which the blades insert. The blades can be secured within the gaps by wedges that apply an inward force against the blades when the wedges are secured into the gaps. The radial extensions and blades can include keyways into which keys insert to prevent the blades from escaping the gaps. The secondary shredder may also include a stationary knife assembly that includes multiple stationary knives that are positioned on the same side of the rotor assembly.

The invention relates to a method for producing an EBM bottle with 0.90 to 1.5 dL/g from a bottle-grade PET post-consumer recycling flake, i.e., a recycled, post-consumer PET with a viscosity of 0.65 to 0.84 dL/g, using extrusion processes, solid state polycondensation processes, and a blowing process.

A system, process and resulting product which converts currently non-recycled plastics plastic bottles, jars, containers, PVC tubing, toys, furniture, synthetic plastic carpet and all other plastics that can be shredded, chipped, powered and or melted into a building material or useful utilitarian object. The process eliminates the need for sorting the plastic. The invention only melts the low temperature melting plastic. The low temperature melting plastic act as the glue or adhesive to bond all the high and low melting, shredded, chipped, flaked, powdered, or pelletized plastics together. The listed fragmented plastics must be mechanically mixed before it is subjected to the low temperature melt process. The conglomerate can be processed into a myriad of forms such as construction panels that can also have decorative veneer added. The conglomerate can also be melted, molded into a myriad of shapes that can also be machined to form intricate useful features.

A woven article for a carbon fiber reinforced plastic according to the present invention is a woven article of a spun yarn containing: about 10 wt % to about 60 wt % of a carbon fiber staple in which the content of carbon components is equal to or greater than about 97 wt %; and about 40 wt % to about 90 wt % of a thermoplastic resin fiber, wherein the carbon fiber staple is obtained by carbonizing carbon fiber reinforced plastic scrap at a temperature of about 900 to about 1400° C. The woven article for a carbon fiber reinforced plastic includes a carbon fiber staple manufactured from scrap generated during manufacture of the carbon fiber reinforced plastic, and allows economic recycling of the carbon fiber reinforced plastic scrap without a reduction in mechanical properties. When molded, productivity is high due to a short cycle time, there is almost no orientation, and an excellent flexural modulus is exhibited.

A method for recycling a transfer product having at least one carrier film, wherein a transfer ply is arranged detachably at least partially on the at least one carrier film, and wherein the following steps are carried out in the method, in particular in the following order: a) shredding (10) the transfer product, by means of a shredder or a shredding device, into transfer product shreds, in particular carrier film shreds, preferably wherein the transfer product is present wound onto a roll, b) compressing (30) the transfer product shreds, in particular carrier film shreds, into a compact product or extruding (31) the transfer product shreds, in particular carrier film shreds, into an extrusion product.

Disclosed herein is a roof cover board and a method of manufacturing an improved cover board product. The method includes receiving waste materials or first use materials, the waste materials or first use materials containing a mixture of cellulose, plastic and other materials; separating the cellulose and the plastic from the mixture; shredding the separated cellulose using a first shredder into a stream of cellulose and shredding the separated plastic using a second shredder into a stream of plastic; selecting a cellulose to plastic ratio from a plurality of cellulose to plastic ratios; metering shredded cellulose from the stream of cellulose and shredded plastic from the stream of plastic according to the selected cellulose to plastic ratio; mixing the metered shredded cellulose and plastic; forming said mixture into a mat; and consolidating the mat into a finished good using heat and pressure.