An example extrusion blow molding (EBM) method includes extruding first and second colors of plastic to form a parison that includes an inner layer of the first color of plastic, and an outer layer of the second color of plastic. The parison is placed in a mold, the mold is closed, and the parison is inflated to create a blow molded structure. A portion of an interior of the blow molded structure is formed of the first color of plastic, and a portion of an exterior of the blow molded structure is formed of a blend of the first color of plastic and the second color of plastic.

An example extrusion blow molding (EBM) method includes extruding first and second colors of plastic to form a parison that includes an inner layer of the first color of plastic, and an outer layer of the second color of plastic. The parison is placed in a mold, the mold is closed, and the parison is inflated to create a blow molded structure. A portion of an interior of the blow molded structure is formed of the first color of plastic, and a portion of an exterior of the blow molded structure is formed of a blend of the first color of plastic and the second color of plastic.

A method for manufacturing a board element, such as a floor element, including an at least partially recycled board layer. The method includes providing a pre-processed material from at least one weight-reduced preformed board element, preferably being obtained by removal of material from a rear side thereof, wherein the pre-processed material includes a thermoplastic material, and providing a virgin material including a thermoplastic material. The method further includes applying heat and pressure to the pre-processed material and the virgin material in a double-belt press to form the board layer, and forming a board element comprising the board layer. Also, a corresponding assembly for manufacturing of a board element.

A method for manufacturing a board element, such as a floor element, including an at least partially recycled board layer. The method includes providing a pre-processed material from at least one weight-reduced preformed board element, preferably being obtained by removal of material from a rear side thereof, wherein the pre-processed material includes a thermoplastic material, and providing a virgin material including a thermoplastic material. The method further includes applying heat and pressure to the pre-processed material and the virgin material in a double-belt press to form the board layer, and forming a board element comprising the board layer. Also, a corresponding assembly for manufacturing of a board element.

Example implementations include a system and method of using plastic from bodies of water and creating a floating platform by collecting plastic from a body of water, cleaning the collected plastic, melting and compacting the plastic, molding a plurality of hexagonal blocks from the compacted plastic, stacking the plurality of hexagonal blocks, wherein a system of springs and an energy storage device is provided between each of the plurality of hexagonal blocks, and coating the stacked blocks with a non-toxic material. Through the use of various onboard functionalities, energy may be generated to regulate temperature and provide electricity, oxygen may be supplied, and water may be purified.

There is provided with a thermal decomposition treatment apparatus capable of ensuring a sufficient residence time of a resin. The thermal decomposition treatment apparatus for thermally decomposing a resin, comprises: a barrel into which the resin is introduced; and a moving unit configured to move the resin from an introduction port side for the resin to a discharge port side for a thermally decomposed product of the resin in the barrel, wherein the thermal decomposition treatment apparatus includes an enlarged portion having an enlarged cross-sectional area on the discharge port side of the barrel.

There is provided with a thermal decomposition treatment apparatus capable of ensuring a sufficient residence time of a resin. The thermal decomposition treatment apparatus for thermally decomposing a resin, comprises: a barrel into which the resin is introduced; and a moving unit configured to move the resin from an introduction port side for the resin to a discharge port side for a thermally decomposed product of the resin in the barrel, wherein the thermal decomposition treatment apparatus includes an enlarged portion having an enlarged cross-sectional area on the discharge port side of the barrel.

A method of manufacturing bulked continuous carpet filament which, in various embodiments, comprises: (A) grinding recycled PET bottles into a group of flakes; (B) washing the flakes; (C) identifying and removing impurities, including impure flakes, from the group of flakes; (D) passing the group of flakes through an MRS extruder while maintaining the pressure within the MRS portion of the MRS extruder below about 1.5 millibars; (E) passing the resulting polymer melt through at least one filter having a micron rating of less than about 50 microns; and (F) forming the recycled polymer into bulked continuous carpet filament that consists essentially of recycled PET.

A method of manufacturing bulked continuous carpet filament which, in various embodiments, comprises: (A) grinding recycled PET bottles into a group of flakes; (B) washing the flakes; (C) identifying and removing impurities, including impure flakes, from the group of flakes; (D) passing the group of flakes through an MRS extruder while maintaining the pressure within the MRS portion of the MRS extruder below about 1.5 millibars; (E) passing the resulting polymer melt through at least one filter having a micron rating of less than about 50 microns; and (F) forming the recycled polymer into bulked continuous carpet filament that consists essentially of recycled PET.

A method of manufacturing bulked continuous carpet filament which, in various embodiments, comprises: (A) grinding recycled PET bottles into a group of flakes; (B) washing the flakes; (C) identifying and removing impurities, including impure flakes, from the group of flakes; (D) passing the group of flakes through an MRS extruder while maintaining the pressure within the MRS portion of the MRS extruder below about 1.5 millibars; (E) passing the resulting polymer melt through at least one filter having a micron rating of less than about 50 microns; and (F) forming the recycled polymer into bulked continuous carpet filament that consists essentially of recycled PET.