A polyethylene terephthalate purification apparatus comprises at least a reactor (4) which houses the plastic material to be purified, an opening connected to a vacuum pump, stirrers (16) to ensure the stirring of the plastic material inside of the reactor (4) and a heating mechanism comprising a microwave heating device to promote the excitation of the polar molecules.

A process for forming a moldable, uncured nonwoven composite containing forming a outermost nonwoven layer, forming a structural nonwoven layer, needling the structural nonwoven layer and the outermost nonwoven layer together from both the outer surface of the outermost nonwoven layer and the second surface of the structural nonwoven layer, applying an uncured, water-based thermosetting resin having a cure temperature of at least about 160° C. to the second surface of the structural nonwoven layer, and at least partially drying the uncured, wet nonwoven composite. Heat and pressure may be applied to form the moldable, uncured composite. A moldable, uncured nonwoven composite and a molded, cured nonwoven composite are also disclosed.

A process for forming a moldable, uncured nonwoven composite containing forming a structural nonwoven layer, at least partially impregnating the structural nonwoven layer with an uncured, water-based thermosetting resin having a cure temperature of at least about 160° C., and at least partially drying the uncured, wet nonwoven composite such that the temperature at the inner plane is less than about 130° C. forming an moldable, uncured composite. The structural nonwoven layer contains a plurality of bi-component binder fibers and a plurality of reinforcing fibers, the bi-component fibers containing a core and a sheath. The core contains a polymer having a melting temperature of at least about 180° C. and the sheath contains a polymer having a melting temperature less than about 180 ° C. A process for forming a molded, cured composite containing forming a structural nonwoven layer and a molded cured nonwoven composite are also disclosed.

A process for forming a moldable, uncured nonwoven composite containing forming a structural nonwoven layer, at least partially impregnating the structural nonwoven layer with an uncured, water-based thermosetting resin having a cure temperature of at least about 160° C., and at least partially drying the uncured, wet nonwoven composite. The structural nonwoven layer contains a plurality of binder fibers and a plurality of reinforcing fibers which are cellulosic fibers. Heat and pressure are applied to the moldable, uncured composite to a temperature of at least about 160° C. at least partially melting the binder fibers, curing the water-based thermosetting resin, and bonding at least a portion of the reinforcing fibers to other reinforcing fibers forming the molded, cured composite. The reinforcing fibers react with and form covalent bonds with the thermosetting resin.

An additive printer dispenses filament having high volume content of axial reinforcing fibers impregnated with a partially cured thermoset material. Partial curing provides sufficient mechanical integrity for high-density fiber support and retention while maintaining tackiness necessary to allow layer by layer additive construction. The complete construction may then be heated to provide complete curing.

An additive printer dispenses filament having high volume content of axial reinforcing fibers impregnated with a partially cured thermoset material. Partial curing provides sufficient mechanical integrity for high-density fiber support and retention while maintaining tackiness necessary to allow layer by layer additive construction. The complete construction may then be heated to provide complete curing.

The present disclosure provides for making annealed additive manufacturing powder, where the powder can be used to make structures using additive manufacturing processes. The additive manufacturing powder can be annealed to improve the flowability of the powder. Once annealed, the powder can be used in the additive manufacturing process and structures can be formed by affixing the powder particles to one another (e.g., by reflowing and re-solidifying a material present in the powder particles). The annealed additive manufacturing powder can be formed in a layer-by-layer additive process to produce articles such as a component of an article of sporting equipment, apparel or footwear, including a sole structure for footwear.

The present invention provides methods, processes, and systems for the manufacture of three-dimensional articles made of polymers using 3D printing. A layer of prepolymer is deposited on a build plate to form a powder bed. The deposited powder bed is heated to about 50° C. to about 170° C. Then, a solution of activating agent is printed on the powder bed in a predetermined pattern, and a stimulus is applied converting the prepolymer to the final polymer. After a predetermined period of time, sequential layers are printed to provide the three-dimensional article. The three-dimensional object can be cured to produce the three-dimensional article composed of the final polymers.

The present invention provides a method of producing a topping hanger comprising: (a) inspecting raw materials; (b) calculating a formula; (c) mixing uniformly; (d) dehumidifying the raw materials; (e) injection molding a colored mixed body: introducing the dehumidified raw materials into an injection molding machine at temperature 200-350° C., and the colored mixed body being produced by injecting molding after adjusting parameters of molds; (f) injection molding a transparent exterior body: a transparent PET and acrylics being formed of the transparent exterior body outside of the colored mixed body by injection molding at temperature 200-350° C.; and (g) packing the products. The transparent exterior body fully coats with the colored mixed body via injection molding, and this feature effectively enhances quality and visual effect, and chemical and color stability of the products, and reduces the cost. The present invention reduces damage during objects with colors contacting human.

Assisted magnetic forming uses a magnetic field to assist in the forming or molding of metallic and non-metallic materials. For example, such a forming process may form a blank of ferromagnetic metals like high-strength steel and high-hard armor, non-ferromagnetic metals like aluminum and magnesium, as well as non-metals like ceramics, plastics, and fiber-reinforced composites into formed or molded parts. The magnetic field is generated to partially or completely saturate the blank during the forming process, which increases the blank's formability and/or moldability while in the presence of the magnetic field.