Patent classifications
B29B2017/0436
CHEMICAL RECYCLING OF PLASTIC DRY FINES
Processes and facilities for using one or more PET-containing materials as a feedstock to a chemical recycling facility, and in particular a solvolysis facility, are provided herein. The PET-containing materials used as feedstock may comprise a quantity of PET-containing dry fines. The PET-containing dry fines may be derived from various processes and facilities, including PET reclaimer facilities and/or manufacturers of PET articles. For example, the dry fines may be collected from solid-liquid separators and/or dust collectors from processes that include conveying, drying, densification, centrifugation processes, and/or grinding PET-containing plastic material. Such dry fines are generally undesirable or unusable to mechanical PET recycling facilities, and typically are sent to landfills and/or incinerators. However, the processes and facilities described herein make use of the PET and other plastics present in these otherwise undesirable or unusable dry fines.
Plastic processing apparatus and related methods
The invention relates to macerator for processing a slurry, the macerator comprising an inlet configured to receive a flow of inlet slurry comprising particles having an average particle size of less than 20 mm, an outlet, two or more bodies that rotate relative to each other, each body comprising a plurality of apertures to define a flow path through each body, wherein the slurry traverses the flow path from the macerator inlet to the macerator outlet via the at least one aperture of each body to produce an outlet slurry.
POLYESTER FILM, PREPARATION METHOD THEREOF AND METHOD FOR REPRODUCING POLYETHYLENETEREPHTHALATE CONTAINER USING SAME
Embodiments relate to a polyester film, preparation method thereof and method for reproducing polyethyleneterephthalate (PET) container using same, the crystallization temperature (Tc) of the polyester film is not measured or is 70° C. to 130° C., as measured by differential scanning calorimetry, whereby it is possible to easily control the crystallinity. Accordingly, the polyester film has excellent shrinkage characteristics and recyclability, and clumping rarely occurs even if it is dried at high temperatures for a long period of time in the regeneration process.
PLASTIC PROCESSING APPARATUS AND RELATED METHODS
Provided is a method of processing a plastic, the method comprising introducing a plastic slurry having particles with a particle size of less than 20 mm into a macerator, the macerator comprising an inlet configured to receive a flow of plastic slurry, an outlet, three or more concentric bodies that rotate relative to each other, each body comprising a plurality of apertures to define a flow path through each body, wherein the plastic slurry traverses the flow path from the inlet to the outlet via the at least one aperture of each body to produce an outlet plastic slurry. Also provided are systems for processing plastic, comprising the macerator. Also provided are methods of manufacturing a composite wood product that comprises plastic particles.
Polyester film and method for reproducing polyester container using same
Embodiments relate to a polyester-based film and a process for regenerating a polyester-based container using the same, which not only solve the environmental problems by enhancing the recyclability of polyester-based containers but also are capable of enhancing the quality, yield, and productivity. When the polyester-based film is cut into a size of 1 cm in width and 1 cm in length, immersed in an aqueous solution of sodium hydroxide (NaOH) having a concentration of 1% by weight, and stirred for 15 minutes at 85° C. at a speed of 240 m/minute, the average particle size of the component of the printing layer separated from the base layer satisfies 15 μm or more. Thus, it is possible to enhance the quality of the regenerated polyester-based chips produced from the polyester-based container provided with the polyester-based film.
POLYESTER FILM AND METHOD FOR REPRODUCING POLYESTER CONTAINER USING SAME
Embodiments relate to a polyester-based film and a process for regenerating a polyester-based container using the same, which not only solve the environmental problems by enhancing the recyclability of polyester-based containers but also are capable of enhancing the quality, yield, and productivity. When the polyester-based film is cut into a size of 1 cm in width and 1 cm in length, immersed in an aqueous solution of sodium hydroxide (NaOH) having a concentration of 1% by weight, and stirred for 15 minutes at 85° C. at a speed of 240 m/minute, the average particle size of the component of the printing layer separated from the base layer satisfies 15 μm or more. Thus, it is possible to enhance the quality of the regenerated polyester-based chips produced from the polyester-based container provided with the polyester-based film.
SYSTEM AND METHOD FOR CONVERTING RECYCLED CARBON FIBER INTO DENSIFIED FIBERS
A system for densification of recycled pre-preg fibers may include a cutting device configured to receive the recycled pre-preg fibers having various lengths, and cut the recycled pre-preg fibers to produce cut fibers having a desired length, and a mixer configured to mix wetted, cut fibers to generate bound fibers having an increased bulk density relative to a bulk density of the cut fibers.
PLASTIC PROCESSING APPARATUS AND RELATED METHODS
The invention relates to macerator for processing a slurry, the macerator comprising an inlet configured to receive a flow of inlet slurry comprising particles having an average particle size of less than 20 mm, an outlet, two or more bodies that rotate relative to each other, each body comprising a plurality of apertures to define a flow path through each body, wherein the slurry traverses the flow path from the macerator inlet to the macerator outlet via the at least one aperture of each body to produce an outlet slurry.
Process and device for separation and recovery of waste carpet components
A process for separation and recovery of waste carpet components, wherein waste carpets are predominantly composed of a face fiber material, a backing material and an adhesive coating which includes latex and filler. Virtually all of the filler, i.e. calcium carbonate, is removed prior to fine grinding and passing the mixture to a high speed centrifuge for separation of the face fiber material from the backing material. A high friction washer is disclosed which separates the face giver material, the backing material and the adhesive coating. The fine grinding of the material to be recycled may be done only once before passing the mixture to the centrifuge by which the loss of the fiber material is highly reduced before its separation into face fiber and backing material and also the life time of the fine grinder and the centrifuge can be prolonged.
TRANSFER FILM, PROCESS FOR PRODUCING A TRANSFER FILM AND PROCESS FOR RECYCLING A TRANSFER FILM
A process for recycling a transfer film (1) and a transfer film (1) suitable for this having a carrier film (2) and a transfer ply (4) arranged at least partially on the carrier film (2), wherein a detachment layer (3) is arranged between the carrier film (2) and the transfer ply (4), and wherein the transfer ply (4) has an alkali-soluble topcoat (5), wherein the topcoat (5) is arranged on the detachment layer (3), and wherein the following step is carried out in the process: x) dissolving (10) the alkali-soluble topcoat (5), in particular the alkali-soluble binder of the topcoat (5), by means of an alkaline washing liquid (9), preferably in a washing liquid bath, wherein the transfer ply (4) is detached from the carrier film (2).