The present invention provides an environmentally-friendly, fully recyclable composite mining screen which has sufficient rigidity to replace existing metal and metal covered plastic mining screens. The inventive composite screen insert contains stiff reinforcing fibers (glass, carbon, etc.) and exhibits the rigidity of metal and metal-covered plastic mining screen inserts so as to minimize deflection in use. The inventive mining screen is also completely recyclable because at the end of its useful life, the broken and used screen can be ground into polymer particles and the particles incorporated into new screens or other parts.

The embodiments relate to a heat shrinkable film and a process for regenerating a polyester container using the same. The heat shrinkable film comprises a copolymerized polyester resin comprising a diol component and a dicarboxylic acid component and has a heat shrinkage rate of 30% or more in the main shrinkage direction upon thermal treatment at a temperature of 80° C. for 10 seconds, a melting point of 190° C. or higher as measured by differential scanning calorimetry, and a peak temperature (Tp) of 95° C. to 115° C. as measured in the endothermic and exothermic curve (heat flow) by differential scanning calorimetry. It not only solves the environmental problem by improving the recyclability of the polyester container, but also is capable of enhancing the yield and productivity.

A method of recycling laminated fabrics and laminated fabric products and producing new laminated fabrics and laminated fabric products includes the steps of shredding scrap or used laminated fabric material, melt separating the polymers, pelletizing the melt separated polymers, extruding the pelletized material with at least one virgin material to form a film, and laminating the film to a nonwoven material to form a new laminated fabric. The scrap or recycled laminated fabric products can include plastic/polymer materials having different melting temperatures. The new laminated fabric can be utilized to produce new products, such as protective covers.

Provided is an ink film recovery method including detaching and removing, from a plastic substrate having an ink film, the ink film by using an ink cleaning agent containing water and at least one selected from an amphoteric surfactant and a cationic surfactant, and then recovering the detached ink film, an ink cleaning agent that can be applied to this ink film recovery method, and an ink film detaching method. Ink films printed on plastic substrates can be easily detached and the detached ink films can be easily recovered using an ink cleaning agent that contains water and at least one selected from an amphoteric surfactant and a cationic surfactant.

A machine for shredding portions of bituminous material in the solid-state into granules in the solid-state. The machine comprises a pressing member provided with a piston which is axially mobile inside a perforated tubular body along an axis and is provided on the head thereof with an internal concave portion having a shape substantially complementary to a projecting part present in an axial end of the perforated tubular body. On the head of the piston through-openings are made, which extend radially along a direction approximately transversal to the axis and are in communication with the internal space of the concave portion.

The present invention refers to the to the reuse of waste materials based on synthetic resins and, more specifically refers to the reuse of disposable diapers, plastic packaging (PVC, PP, PET, and so on), for the production of raw material for extrusion, lamination, injection and rotational molding processes, among others. The invention consists of a system comprising a chopper, a mill for homogenization of particle size, a disk compactor employing frictional heating between a fixed disk and a rotating disk and cooling means by circulation of cold water inside said discs.

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.

Granulator mill (1) comprising a frame (10), a cutter housing (20) with a granule chamber (22) comprising at least one non-rotatable blade (24) inside the granule chamber (22), and further comprising a rotatable rotor (30) arranged inside the granule chamber (22). The rotor (30) comprises blades (32, 34) which are arranged for cooperation with the non-rotatable blade (24) for granulating waste material to granules. A normal (n) to a first opening (26a) of the granule chamber (22) is pointing substantially vertically upwards in the normal position of use of said granulator mill (1), and characterising is that the cutter housing (20) is pivotably arranged at the frame (10) by means of a first pivot means (28), for pivoting the cutter housing (20) between the normal position of use and a cleaning position. In the cleaning position, the normal (n) of the first opening (26a) of the granule chamber (22) points towards a surface plane of the substrate.

Systems for manufacturing bulked continuous carpet filament from polymer, where the systems are configured for: (1) passing polymer flakes through a crystalliers; (2) melting the polymer to create a first single stream of polymer melt; (3) separating the first single stream of polymer melt into multiple streams of polymer melt; (4) exposing the multiple streams of polymer melt to a pressure of between about 0 millibars and about 25 millibars in a chamber; (5) recombining the multiple streams of polymer melt into a second single stream of polymer melt; and (6) providing the second single stream of polymer melt to one or more spinning machines that are configured to form the second single stream of polymer melt into bulked continuous carpet filament.

A method of filling a mold comprising filling a majority of a mold cavity with an extrudate from at least one extruder wherein the extrudate, which is conveyed to an inlet of the mold, is at a pressure of 1-500 psi, subsequently isolating the mold cavity from a conduit which conveys the extrudate to the mold cavity, and subsequently using a pressurization member to fill a remainder of the mold cavity with additional extrudate, wherein the pressurization member excepts a pressure above 500 psi on the additional extrudate.