The present invention relates to a process for the production of polymers from waste plastics feedstocks comprising the steps in this order of: (a) providing a hydrocarbon stream A obtained by treatment of a waste plastics feedstock; (b) optionally providing a hydrocarbon stream B; (c) supplying a feed C comprising a fraction of the hydrocarbon stream A and a fraction of the hydrocarbon stream B to a thermal cracker furnace comprising cracking coil(s); (d) performing a thermal cracking operation in the presence of steam to obtain a cracked hydrocarbon stream D; (e) supplying the cracked hydrocarbon stream D to a separation unit; (f) performing a separation operation in the separation unit to obtain a product stream E comprising a monomer; (g) supplying the product stream E to a polymerisation reactor; and (h) performing a polymerisation reaction in the polymerisation reactor to obtain an polymer. The process of the present invention allows for optimisation of the quantity of waste plastic material that finds its way back into a polymer that is produced as outcome of the process.

A continuous liquefaction and filtration system has a first device configured to melt and filter solid waste plastic material. A second device is in communication with the first device, and configured to melt solid waste plastic material. A feeding system is configured to feed waste plastic material into the first device. A vacuum unit is in communication with the first device and the second device. The vacuum unit configured to control a pressure level within the system. A method of processing solid waste plastic including the steps of providing the system and solid waste plastic; inserting the solid waste plastic into the first device; heating the solid waste plastic material; extracting the molten plastic with one of the extractors; sending a portion of the molten plastic to second device and recirculating another portion in the first device; and extracting the melt polymers.

A continuous liquefaction and filtration system has a first device configured to melt and filter solid waste plastic material. A second device is in communication with the first device, and configured to melt solid waste plastic material. A feeding system is configured to feed waste plastic material into the first device. A vacuum unit is in communication with the first device and the second device. The vacuum unit configured to control a pressure level within the system. A method of processing solid waste plastic including the steps of providing the system and solid waste plastic; inserting the solid waste plastic into the first device; heating the solid waste plastic material; extracting the molten plastic with one of the extractors; sending a portion of the molten plastic to second device and recirculating another portion in the first device; and extracting the melt polymers.

The present invention relates to methods of producing polymer fibers and polymer fiber products and materials recovery from these processes. It is an object of this invention to produce polymer fibers and products that include these fibers using selective dissolution of multicomponent fiber and to recover the dissolved polymer and solvent for subsequent use.

Methods and equipment for the recycling of carpet are disclosed that produce a clean fiber product suitable for industrial use. The methods allow the recovery of face fiber material, for example a polyester, polyolefin, or a polyamide, from carpets that includes a face fiber material, a polypropylene backing material, and an adhesive, and include the steps of mechanically impacting the carpet to break the bonds between the adhesive and the fibrous components, treating the fibrous components to remove adhesive granules from the fibrous components, and optionally separating the polypropylene backing from the face fiber. A clean adhesive/calcium carbonate product can also be produced from this process.

A laminate is provided, which requires a shorter period of time for delamination thereof and hence is excellent in recoverability. The laminate includes a first outer layer, an intermediate layer, and a second outer layer which are disposed in this order. The intermediate layer contains a polyvinyl alcohol resin. A difference in water vapor transmission rate between the first outer layer and the second outer layer is not less than 100 cc.Math.30 μm/m.sup.2.Math.day, and the water vapor transmission rate of the first outer layer and the water vapor transmission rate of the second outer layer satisfy the following expression (1):

WVTR1<WVTR2  (1)

wherein WVTR1 is the water vapor transmission rate of the first outer layer and WVTR2 is the water vapor transmission rate of the second outer layer.

Method for recycling composite ropes, the method comprising a step of identifying (SO) the type of rope and at least one step of separating components comprising one or the other of the following steps /S1/,/S2/,/S3/,/S4/ as defined below: /S1/—a mechanical separation step, /S2/—a chemical separation step, /S3/—a thermal separation step, /S4/—a biological separation step and machine or installation for recycling composite ropes.

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.

The present invention relates to methods of producing polymer fibers and polymer fiber products and materials recovery from these processes. It is an object of this invention to produce polymer fibers and products that include these fibers using selective dissolution of multicomponent fiber and to recover the dissolved polymer and solvent for subsequent use.

A system and method for tennis ball recycling that processes tennis balls into one or more constituent components to generate useful products is disclosed. The system includes a hopper to hold the balls for recycling; a grinder having a plurality of blades to initially cut the tennis balls in a first step to separate the rubber from the nylon; a cyclonic extractor that further separates loose fibers out in a second step; a trommel separator that further filters the broken down components of the tennis balls for use in new products.