The invention relates to a method by which a starting material for injection molding having a viscosity of between 0.50 and 0.7 dL/g is produced from a recycled post-consumer PET having a viscosity of between 0.72 and 0.86 dL/g according to ASTM D4603 and a copolymer fraction of at most approximately 3%, adding a low-viscosity PET material. In the method, the comminuted and dried PET material is melted and decontaminated to such a degree that it is suitable for applications in the food sector and the consumer goods sector.

The present invention relates to a manufacturing method for a foam sheet for shoes containing Thermoplastic polyurethane (TPU) powder and recycled Polyurethane (PU) scrap powder, and for an eco-friendly polyurethane foam composition including water foam, firstly the recycled PU scrap powder is mixed with polyol, and then the processing speed in a process is controlled through a side-feeder to react while adding the TPU powder and recycled PU scrap powder secondarily, thereby preventing a rise in viscosity of the raw material, so that even if a larger amount of recycled materials is used than before, it is possible to form foam sheets for shoes, such as shoe insoles or foam packages for shoe uppers, with the same level of product quality as conventional products.

A plastic container includes a hollow body portion including a lower supporting base portion; a sidewall portion extending upwardly from the base portion; and a neck portion extending upwardly from the sidewall portion. The neck portion includes a support flange having an upper and lower surface, at least one thread, and a dispensing opening at the top of the neck portion. In embodiments, a closure may be provided to form an assembly. A preform and method for making a container are also disclosed.

A plastic container includes a hollow body portion including a lower supporting base portion; a sidewall portion extending upwardly from the base portion; and a neck portion extending upwardly from the sidewall portion. The neck portion includes a support flange having an upper and lower surface, at least one thread, and a dispensing opening at the top of the neck portion. In embodiments, a closure may be provided to form an assembly. A preform and method for making a container are also disclosed.

Provided is a method for producing a carbon fiber composite material having high strength and elasticity and containing recycled carbon fibers. When a raw material is transported along the outer circumferential surface of a screw main body 37 having a passage 88 therein, the transport of the raw material is restricted by a barrier portion 82 provided on the outer circumferential surface, a shearing force is applied to the raw material by the screw main body 37, and a stretching force is applied to the raw material by passing the raw material from the inlet 91 of the passage 88 provided on the outer circumferential surface to the outlet 92 of the passage 88, thereby shortening a fiber length of the recycled carbon fibers and obtaining a carbon fiber composite material having good strength and elasticity and containing 50-70 wt % of recycled carbon fibers well dispersed therein.

An injection molding machine includes a plasticizing unit having a plasticizing cylinder and a material-conveying device that is movable in the plasticizing cylinder and powered by a material-conveying drive, a material-conveying drive control, which is coupled with the material-conveying drive and is designed to control operating parameters of the material-conveying drive, a closing unit having an injection molding tool that is connected with an outlet nozzle of the plasticizing cylinder, as well as a closing unit control, which is coupled with a closing unit drive of the closing unit and is designed to control operating parameters of the closing unit drive. The injection molding machine further includes one or more dieletric or acoustic sensors which are disposed in the cavity of the injection molding tool or close to the cavity of the injection molding tool and are designed to determine the dielectric polarizability, mobility of free load carriers and/or acoustic material responses of a molding material in the cavity of the injection molding tool. A sensor control is coupled with the dielectric or acoustic sensor(s) and is designed to ascertain a time-dependent degree of crystallization and a time-dependent median temperature of the molding material in the cavity of the injection molding tool from the dielectric polarizability, mobility of free load carriers and/or acoustic material responses determined by the dielectric sensor(s) and, depending on the ascertained degree of crystallization and the ascertained median temperature, to actuate the material-conveying drive control and/or the closing unit control to adjust the operating parameters of the material-conveying drive and/or of the closing unit drive.

A solvent-based plastic recycling method that removes color and produces plastic polymers substantially free of exogenous colorants. The method comprises selecting a solvent that selectively dissolves an individual polymer and has low solubility of colorants and decomposition products of the colorants. A combined precipitator and piston device is used to precipitate the polymer solution and mechanically remove the solvent from the precipitate before thermal drying. An adsorption bed is used to clean the recovered solvent as it is recycled to the process.

A method includes injection molding a preform using a two phase injection system having a first phase in which a material is injected into the preform and a second phase in which the material is injected into the preform. The preform is disposed in a mold. The preform is blow molded into an intermediate article. The intermediate article is trimmed to form a finished container. The first phase includes injecting a material into the preform to form a single layer of the preform and the second phase includes injecting the material to form inner and outer layers and an intermediate layer between the inner and outer layers. The inner and outer layers include the material and the intermediate layer includes at least one additive. Finished containers are disclosed.

A method for molding a seamless rebonded foam article with an internal cavity is provided. The method may include moving a middle mold to a middle mold form position within the mold cavity to press into a first portion of rebond foam particles, and moving a top mold to a top mold form position within the mold cavity to press into the second portion of rebond foam particles. The method may further include injecting steam into the mold cavity at a middle mold fluid port interface of the middle mold such that the steam passes into the mold cavity to interact with the first and second portions of rebond foam particles via at least one middle mold flow hole in the middle mold, and evacuating the steam via a vacuum source coupled to the top mold and the bottom mold.

A method of forming a mesh from thermoplastic material includes the steps of: providing an apparatus comprising a shredder and a binding station, urging thermoplastic material through the shredder to from strips of shredded material, and then transferring the shredded thermoplastic material through the binding station to form a more integral mesh formation from the shredded thermoplastic material. Such mesh material can be used for a variety of applications such as cushioning or the like.