Abstract: The present invention provides, e.g., methods to recycle and/or reduce plastic, non-plastic, or a combination thereof, from a waste stream. The methods of the present invention include contacting the plastic waste with infrared (IR) energy at one or more frequencies and at one or more intensities, over a period of time effective to heat plastic present in the plastic waste.

Abstract: A manufacturing apparatus of display element is provided in which the position of a drive circuit or thin-film transistor on a flexible substrate roll can be confirmed easily. The manufacturing apparatus of display element (100) is provided with a supply roll (RL) that feeds a flexible, elongated substrate (FB) which has been wound into a roll shape in a first direction; a mold (10) that, by pressing onto the fed elongated substrate, forms at least one first index mark (AM) for one row of display elements and partition walls (BA) for a plurality of display elements (50) that are lined up in a second direction which intersects the first direction; and a droplet applying section (20) that applies droplets onto a groove portion formed between the partition walls.

Abstract: A method of producing a building material using environment-friendly loess includes preparing an environment-friendly composition by mixing 10˜90 parts by weight of at least one selected from among loess, kaolin, clay and grayish blue powdered soil, 3˜50 parts by weight of a resin coating agent, 0.1˜25 parts by weight of an inorganic pigment, and 1˜60 parts by weight of water; and molding the environment-friendly composition at 10 second˜20 minute intervals by introducing it into a molding machine having a temperature of 50˜550° C. and an internal pressure of 1˜20 kg/cm2. A method of producing a container using environment-friendly loess includes preparing an environment-friendly composition by mixing 10˜90 parts by weight of at least one selected from among loess, kaolin, clay and grayish blue powdered soil, 3˜50 parts by weight of a resin coating agent, 0.

Abstract: A method of making drainage elements from recycled thermoplastic plastics materials comprising the steps of: providing chopped waste plastics to a screw extruder having a screw. In the extruder, the waste is compressed and delivered to a twin-plate agglomerator. One plate is closely adjacent to, and rotates with respect to, the other plate. Between the plates the waste plastics is agglomerated and the mechanical energy imparted by the extruder screw and plates heats the plastics material to about the melting point of the thermoplastic material. Hot noodles of melted plastics material extrudes from an outlet of the plates. The noodles are conveyed to a chute of a compactor funnel which has an outlet disposed closely above an output conveyor belt.

Abstract: An apparatus, system, and method are disclosed for condensing, separating and storing recyclable materials. The apparatus, in one embodiment, stores recyclable materials and melts the recyclable materials into a condensed form. The apparatus may include an enclosure with one or more openings to receive an item made from a recyclable material, a storage compartment to enable removal of stored recyclable materials, at least one heating module to melt the recyclable material into a condensed form, and a receptacle configured to retain a melted form of the recyclable material. Thus, the recyclable material may be easily and conveniently stored for reprocessing. The apparatus may further separate the recyclable material according to the type of recyclable material.

Abstract: An apparatus, system, and method are disclosed for condensing, separating and storing recyclable materials. The apparatus, in one embodiment, selects a type of recyclable material, alters the recyclable material to a condensed form and stores the recyclable material in a designated receptacle. The apparatus may include an enclosure with one or more openings to receive an item made from a recyclable material, a selection module, a plurality of form altering modules, a plurality of receptacles, and a director module to automatically direct a recyclable material, responsive to a selection made with the selection module, to one of a plurality of receptacles according to the type of material selected. A system, in one embodiment, includes a recycling appliance and one or more modular form altering devices. The modular form altering devices may be interchangeable.

Abstract: A method of reusing cross-linked plastics wastes or using cross-linked plastics wastes as modifiers is provided. Cross-linked plastic products from various sources and/or wastes thereof are crushed, smashed, and classified according to particle size. By using the wasted cross-linked plastic powder as a modifier of asphalt and resin, the modified material obtains the property of “not melted at high temperature, not brittle at low temperature”. Fine powders of various particle sizes are added into a new base material mixture in a certain proportion to replace an inorganic filler with equivalent or slightly higher volume in the formulation system, such that the performance of the product is not reduced at all, but improved.

Abstract: The present invention relates to a recycling method of a mixed waste of polyester and polyamide (hereinafter, referred to as “mixed waste”) in which polyesters including polyethylene terephthalate and polyamides are inseparable from one another. In accordance with the recycling method of the present invention, it is possible to prepare a solid block polymer having an acid value of 1 to 150 mgKOH/g, a weight average molecular weight of 3,000 to 50,000 and a softening point of 10 to 150° C., or a liquid polyester-amide block polymer composition having good compatibility, solubility and dispersibility. In addition, the polymer having an acid value of more than 20 mgKOH/g is reacted with a basic compound to form a neutralized salt which is then used to prepare a water-soluble polyester-amide block polymer composition.

Abstract: An apparatus for the preparation of thermoplastic plastics material to be recycled has two treatment stages (68, 68) [sic—recte (67, 68)] following one after the other. At least two receiving containers (1, 1?), which are capable of being evacuated and which are attached in parallel to a receiving container (2) of the second stage (68), are present in the first stage (67). A device (70) is present by which an alternating batch-wise charging of the receiving container (2) of the second stage takes place from the receiving containers (1, 1?) of the first stage. The said device (70) controls discharge members (75) of the receiving containers (1, 1?) of the preceding stage (67), which leads into a channel (3). A shut-off member (71) is provided for each receiving container (1, 1?) of the preceding stage (67) in the said channel. The device (70) for the alternating batch-wise charging of the receiving container (2) of the last stage controls the said shut-off members (71).

Abstract: A method includes producing an elastic strip material (12) by sandwiching an elastic member (4) between two webs (10, 11) under a stretched state in the longitudinal direction of the webs (10, 11), halving the elastic strip material (12) in the widthwise direction so that protrusions (12a) and recesses (12b) alternately appear, separating a first elastic strip material and a second elastic strip material obtained by halving in the widthwise direction, shifting the phases of the first and second elastic strip materials in the longitudinal direction so that the protrusions and the recesses become in phase, reducing the shrinking force of the elastic member near the protrusions (12a) of the first and second elastic strip materials (12A and 12B), and attaching an absorber (12c) onto parts (12c) of the first and second elastic strip materials (12A) where the shrinking force is reduced.

Abstract: Techniques for generating a stable, force-resisting positive or negative representation of a shape. A state-changeable mixture includes uniform, generally ordered, closely-spaced solid bodies and a liquid carrier medium, with the liquid filling any voids or interstices between the bodies and excluding air or gas bubbles from the mixture. Within the mixture, the solid bodies can be caused to transition from a near-liquid or fluent condition of mobility to a stable, force-resisting condition. To create mobility, a small excess quantity or transition liquid is introduced to create a fluent condition by providing a slight clearance between the bodies which permits the gently-forced introduction of at least two simultaneous slip planes between ordered bulk masses of the bodies at any point in the mixture. Transition to the stable condition is caused by extraction of the transition liquid, removing the clearance between bodies and causing them to make stable, consolidated contact.

Abstract: A polyolefin composition containing elastomers (plasticizers), crystalline polypropylene, modified by mixing with polybutene-1 and a coupling agent and a bicyclic dicarboxyl acid salt nucleating agent and/or a lubricant which comprises an unsaturated fatty acid ester which acts as a surface modifier in a molded article is described. The composition is adapted to be used with pigments to make finished molded articles which have an appearance of paint covered by a clear coat and which are scratch resistant and have good low temperature (?30° C.) impact properties.

Abstract: A method of recycling bonded fibrous materials, the method includes the steps of: providing pieces of bonded fibrous materials, the pieces having sizes that are adapted for suspension in a liquid; suspending the discrete pieces of bonded fibrous materials in a liquid; applying mechanical work to the liquid suspension of discrete pieces to generate hydraulic pressure and mechanical shear stress conditions sufficient to hydraulically fragment the bonded fibrous materials into fibers and fiber-like components; and separating substantially individual fibers and fiber-like components from the liquid. The method is used to produce recycled synthetic fibers and fiber-like materials that have at least one thread element composed of synthetic material having at least one irregular distortion generated by hydraulic fracture of the thread element to separate it from a bonded fibrous material while the bonded fibrous material is suspended in a liquid.

Abstract: There is provided a treatment method of efficiently separating an additive component from a resin component for the purpose of treating and recycling a thermoplastic resin composition containing an additive. The treatment method includes heating and agitating the thermoplastic resin composition containing the additive together with a solvent for dissolving at least part of the additive at a temperature ranging from the glass transition temperature of the thermoplastic resin to the boiling point of the solvent inclusive, and separating and recovering the solvent in a liquid state in which at least part of the additive is dissolved, so that at least part of the additive is separated and removed from the thermoplastic resin composition.

Abstract: An object of the invention is to provide a method and an apparatus for recycling plastics which is improved with respect to operation efficiency, operation environment, lowering degradation of plastics, recycling cost and environment load including saving energy. The recycling is made as follows: coarse-crushing used-up plastic products, separating plastic materials from other foreign matters by air blow separation, fine-crushing the separated plastics, washing the fine-crushed plastics by the process using a circulation flow including a spiral flow in which interaction between crushed plastics helps themselves clean without washing agents, dewatering the washed plastics, drying them, removing metallic matters by using metal detector, then feeding them directly without pelletizing to an injection molding machine of which nozzle part is equipped with filter and flow-switching mechanism for cleaning the filter by backwash reverse filtration.

Abstract: Techniques for generating a stable, force-resisting positive or negative representation of a shape. A state-changeable mixture includes uniform, generally ordered, closely-spaced solid bodies and a liquid carrier medium, with the liquid filling any voids or interstices between the bodies and excluding air or gas bubbles from the mixture. Within the mixture, the solid bodies can be caused to transition from a near-liquid or fluent condition of mobility to a stable, force-resisting condition. To create mobility, a small excess quantity or transition liquid is introduced to create a fluent condition by providing a slight clearance between the bodies which permits the gently-forced introduction of at least two simultaneous slip planes between ordered bulk masses of the bodies at any point in the mixture. Transition to the stable condition is caused by extraction of the transition liquid, removing the clearance between bodies and causing them to make stable, consolidated contact.

Abstract: Recycled ceramic slurry is produced by a method including the steps: dissolving the waste material of unfired ceramic in a solvent to form a waste solution; and adjusting a composition of the waste solution to thereby produce the recycled ceramic slurry. If the waste material of unfired ceramic includes a metal component, the metal component may be removed therefrom before the step of adjusting the composition of the waste solution.

Abstract: Within a process for recycling of PET-material and/or objects of PET, the PET-material to be processed is heated and dried in the course of a pre-treatment step and simultaneously is crystallized at elevated temperature. This pre-treatment step is followed by a main-treatment step under vacuum. In this main-treatment step, the processed material is again dried and crystallized at a temperature that is higher than the temperature of the pre-treatment step. Preferably, also in the main-treatment step no plasticizing of the material takes place; the plasticizing or, respectively, melting of the material takes place only after the main-processing step. An apparatus for performing this process comprises a pre-processing device (3) in which the processed material is dried and simultaneously crystallized at elevated temperature, and, if desired, is also comminuted.

Abstract: A tire, and an apparatus and method for forming a tire. The tire may either be a tubed or tubeless tire, and is filled with a mixture of virgin rubber and small rubber pieces. Preferably, a machine grinds the core of used flatproofed tires, or pieces thereof, into a finely communicated pulverulent. The pulverent is mixed with liquid virgin flatproofing material, such as a polyurethane. An injector introduces this mixture, into the core of a tire, typically through a valve. The core of the tire is preferably substantially filled with this mixture. The injector may take the form of one or more elongated screws and the mixing may occur as the ground rubber is being conveyed by the screw.

Abstract: A method for formation of shaped components such as shaped absorbent cores, for disposable absorbent articles, contemplates that a relatively wide web of material be provided from which the components are cut. The web of material is longitudinally slit to form a plurality of subdivided webs each having shaped components arranged in serial relationship. The shaped components of adjacent ones of the subdivided webs are nested with each other, that is, a line extending longitudinally of the web extends through the components of adjacent subdivided webs. Efficient formation is facilitated by collecting the marginal portions of the web of material, and at least partially recycling the collected portions for formation of the wide web.

Abstract: Disclosed is both a method and apparatus for mechanically embossing a surface covering. The apparatus includes an embossing tool comprising a slurry. The slurry includes both a filler and binder. The method includes printing a slurry onto a surface covering and compressing the slurry onto the surface covering to create a mechanically embossed texture onto the surface covering.

Abstract: The invention relates to a simplified production process with which it is possible to obtain carbon blocks, in particular anodes intended for aluminium production using the Hall-Héroult electrolysis process, which have high thermal shock resistance. This process comprises a grain size distribution adjustment operation of a carbon aggregate which includes: a) separating an initial ungraded carbon aggregate AC into a first fraction F1 made up of grains whose sizes are smaller than X, and into a second fraction F2 made up of grains whose sizes are X or greater, X lying between 0.2 and 2 mm; b) crushing B1 the first fraction F1 and part P1 of the second fraction F2 such as to obtain a powder F comprising a controlled proportion of ultra-fine grains; c) mixing the remaining part P2 of fraction F2 and said powder F in proportions with which it is possible to obtain crude carbon blocks whose so-called “Gr/S” ratio between the proportion PGr of grains larger than 0.

Abstract: A melting volume reduction device (10) for waste resin comprises: a charging port (15) for charging waste resin; a cutter (38) for crushing the charged waste resin; a screen (39) through which pieces of waste resin, which have been crushed into sizes not more than a predetermined size, can pass; a conveyer means (49) for conveying the pieces of waste resin which have passed through the screen; a melting means (44) for melting the pieces of waste resin, which have been conveyed by the conveyer means, into a state of high viscosity; and a discharge port (44a) for discharging the melted waste of resin. The melting volume reduction device for waste resin is composed so that it can be transported by a transportation means, and the melting volume reduction device for waste resin is capable of reducing a volume of waste resin by means of melting at a site where the waste resin is generated.

Abstract: In a method for the coring of water-soluble casting cores made from sand, there is a partial dissolving of the cores in a water-filled dissolving tank (1.5). A sand-permeable conveyor belt (1.10) provided with dogs (1.11) for sand discharge purposes conveys the castings (1.9) into a coring tank (1.8), where the sand is ejected by means of water jets from program-controllably movable water jet nozzles (1.13). Residual desanding takes place by targeted movement in a water-filled residual desanding tank (1.6). The old sand (12) collected in the tanks (1.5, 1.6, 1.8) is removed, cleaned in a sand washing device, dried and reused for casting core production. The waste water produced is concentrated in an evaporator unit and reused as secondary raw material. The distillate is available again to the plant.

Abstract: A method for dry process recycling of mixed (U,Pu)O2 oxide nuclear fuel waste, including a process for making fuel pellets of mixed (U,Pu)O2 oxide, including a dosage and a first mixture (1) of waste in powder form and, if required, of PuO2 and/or UO2 powders, a micronization (2) and a forced sieving (3) of said first mixture, another dosage and a second mixture (4) of the first sieved mixture, of UO2 powders and, if necessary, of the waste powder, pelletizing (6) the second mixture, and sintering (7) the resulting pellets; and a process for pre-treating the waste including pelletizing (20) and sintering (21) the powder waste to form waste pellets, and micronizing (23) the waste pellets to form the desired waste powder designed to be incorporated as waste powder, in the first (1) and/or second mixtures.

Abstract: Techniques for generating a stable, force-resisting positive or negative representation of a shape. A state-changeable mixture includes uniform, generally ordered, closely-spaced solid bodies and a liquid carrier medium of relatively similar density, with the liquid medium filling any voids or interstices between the bodies and excluding air or gas bubbles from the mixture. Within the mixture, the solid bodies can be caused to transition from a near-liquid or fluent condition of mobility to a stable, force-resisting condition through introduction and then extraction of a slight excess quantity of the carrier medium. To create mobility, this excess quantity or transition liquid is introduced to create a fluent condition by providing a slight clearance between the bodies which permits the gently-forced introduction of at least two simultaneous slip planes between ordered bulk masses of the bodies at any point in the mixture.

Abstract: A process for manufacturing (U,Pu)O2 mixed oxide nuclear fuel pellets. In a first blending operation, PuO2 is mixed with a UO2 powder and/or fuel manufacturing scrap, forming a first blend. The first blend is micronized and sieved to form a conditioned first blend. Non-free-flowing UO2 is selected as a second portion of UO2. The second portion of UO2 is mechanically granulated to form granulated free-flowing UO2. In a second blending operation, the conditioned first blend is further mixed with the granulated free-flowing UO2 and possibly scrap. Lubricants and/or poreformers are added. The blend is pelletized and sintered. During granulation, the non free-flowing UO2 is compressed to form tablets. The tablets are then crushed until a free-flowing crushed material has been formed. At least one portion of this free flowing crushed material is used in the second blending operation.

Abstract: Fiber reinforced recycled thermoplastic composites and methods for their manufacture are presented. In a preferred embodiment, the thermoplastic composite incorporates a matrix of recycled thermoplastic and a plurality of high modulus, reinforcing fibers, with the recycled thermoplastic including polyethylene, polypropylene, nylon, PET and styrene-butadiene rubber, and the reinforcing fibers including glass fibers, natural fibers, carbon fibers, and aramid fibers. Preferably, each of the reinforcing fibers has a minimum length of approximately ½ of an inch and a modulus of approximately one million psi.

Abstract: The present invention is directed to an improved process for the production of ceramic tiles using industrial wastes. The invention particularly relates to an improved process for the production of ceramic tiles using industrial wastes such as iron ore slime, fly ash and blast furnace slag.

Abstract: A method for production of a layered product including at least two layers, a first primary layer and second mouldable layer, wherein a continuous supply of a primary layer material and a supply of mouldable material are provided and wherein the primary layer material and the mouldable material are combined in moulding cavities, wherein the moulding cavities are placed in an endless loop, and the mouldable material and the primary layer are combined by placing the mouldable material on the primary layer about and/or in communication with the moulding cavities.

Abstract: A process for forming particulate materials and binders into articles that are reusable after comminution, wherein the particulate materials are treated with a binder composition containing. A) one or more copolymers containing one or more comonomer units selected from the group consisting of vinyl esters of branched or unbranched alkyl carboxylic acids of 1 to 18 carbon atoms, acrylic or methacrylic esters of branched or unbranched alcohols of 1 to 15 carbon atoms, dienes, olefins, vinyl aromatics and vinyl halides, and further containing 4 to 60% by weight, based on the total weight of the copolymer, of one or more comonomer units containing polar groups, and B) one or more fillers having a polar surface capable of interaction with the polar groups of copolymer A), and formed into articles and consolidated, and, if appropriate, the formed article obtained thereby is comminuted for recycling and the material obtained thereby is reused for forming new articles.

Abstract: Used and manufacturing scrap asphalt shingle material is processed into a relatively coarse material comprising pieces or flakes of a maximum predetermined size. The flakes are finish processed into a composite board product in a method that includes (i) mixing the flakes with a relatively high percentage content of solvent suffused fiber, (ii) grinding and heating the flakes and fiber to form a homogenous semi-liquid mixture, (iii) extruding and conveying the homogenous mixture to a board forming station, and (iv) compressing the mixture into the composite board product.

Abstract: The present invention provides a production process of a Mn—Zn ferrite that enables wastes of sintered cores to be recycled without serious difficulties in sintering. The production process comprises recycling a powder obtained by milling a sintered Mn—Zn ferrite, thereby obtaining a sintered core having a component composition including 44.0 to 49.8 mol % Fe2O3, 4.0 to 26.5 mol % ZnO, 1.0 to 3.0 mol % CoO, 0.02 to 1.00 mol % Mn2O3 and a remainder MnO.

Abstract: Recycled rubber products are made in a two step process. In the first step, ground rubber is treated with a polyurethane binder to make a treated rubber. In the second step, the treated rubber is mixed with additional polyurethane binder and molded into finished products. This method uses less polyurethane binder than the conventional process, but the products have higher tensile strengths. The molding time is also reduced because of the reduced amount of polyurethane binder used.

Abstract: The invention relates to an improved process for the production of ceramic tiles using industrial wastes. The invention particularly relates to an improved process for the production of ceramic tiles using industrial wastes such as iron ore slime, fly ash and blast furnace slag.

Abstract: There is disclosed a method of and an arrangement for dismantling and storage of objects comprising alkali metal containing substances, in particular lithium containing batteries, in the presence of a protective atmosphere, wherein the protective atmosphere is carbon dioxide. The arrangement comprises a gas-tight chamber for bringing the objects under a protective environment, and a gas-tight chamber for dismantling the objects within the protective atmosphere of carbon dioxide gas.

Abstract: An in-mold and in-line decorating method is disclosed which, using a single sheet layer, allows the placement of the highest possible quality graphics into the surface of products made from a variety of moldable thermoplastic, thermoset, and vulcanizable materials using a variety of molding processes. The methods also provide new or improved capabilities for product identification, safety, and serialized tracking.

Abstract: A method of manufacturing material suitable for the construction of a component of a fuel cell, such as a flow field plate or electrode. Uncured resin impregnated flexible graphite sheet is ground into particles. Without re-expanding the particles, and without adding further resin to the particles, the particles are molded into the form of the desired material. The material is then cured. Additives may be mixed with the particles to improve the properties of the material.

Abstract: A recycling method of producing magnetic material powder from bonded magnets which are produced by mixing magnetic material powder, as raw material powder, with a binder and subjecting a mixture to molding forming, has at least the steps of: (a) separating and collecting the magnetic material powder from the bonded magnets by removing all or a prescribed percentage of the binder contained in the magnets; (b) removing all or a prescribed percentage of the particles of diameter smaller than a prescribed particle diameter from the separated and collected magnetic material powder; and (c) mixing the magnetic material powder, from which the particles of diameter smaller than the prescribed one are removed, with a virgin magnetic material powder in a prescribed mixing ratio, so as to produce a new raw material powder.

Abstract: A production process of a Mn—Zn ferrite enables wastes of sintered cores to be recycled without serious difficulties in sintering. The production process includes recycling a powder obtained by milling a sintered Mn—Zn ferrite, thereby obtaining a sintered core having a component composition including 44.0 to 49.8 mol % Fe2O3, 4.0 to 26.5 mol % ZnO, 0.02 to 1.00 mol % Mn2O3 and a remainder MnO.

Abstract: Thermosetting polymer is introduced into a mold at one end thereof to fill said mold. After a predetermined length of time to permit the thermosetting polymer to polymerize along the wall of the mold to form a wall of the desired thickness, gas is introduced into said mold at the opposite end to eject the central unpolymerized portion of the thermosetting polymer from the mold, leaving behind in the mold a hollow formed article.

Abstract: A method for making a prototype mold includes step 1: to prepare thermoplastic liquid by mixing hollow particles and resin; step 2: to crush used prototype molds into 5 mm to 10 mm particles; step 3: to mix the crushed particles in step 2 with the thermoplastic liquid; step 4: to eliminate bubbles in the mixture of the thermoplastic liquid and the crushed particles; step 5: to pour the mixture of the thermoplastic liquid and the crushed particles in a mold to make a product; step 6: to heat the product in step 5 at 60 to 200 degrees Celsius for 0.5 to 120 hours; step 7: to heat the product in step 6 at 60 to 80 degrees Celsius for 8 to 12 hours to obtain a stable crystal structure; step 8: to take the product from the mold, and step 9: to trim the product.

Abstract: A process for the preparation of a semiconducting shield composition comprising: (i) introducing an elastomer into a melt/mixer having a melting zone and a mixing zone; (ii) introducing particulate conductive carbon black into the melt/mixer in an amount of about 10 to about 25 percent by weight based on the weight of the resin; (iii) melting the elastomer in the melting zone; (iv) mixing the carbon black and the molten elastomer in the mixing zone; (v) optionally, pelletizing the mixture of carbon black and elastomer; (vi) recycling the mixture of carbon black and elastomer from step (iv) or the pellets from step (v) to a melt/mixer; (vii) introducing additional particulate semiconductive carbon black into the melt/mixer in an amount sufficient to provide a total amount of carbon black in the range of about 25 to about 50 percent by weight based on the weight of the resin; (viii) melting and mixing the mixture from step (vii); and (ix) pelletizing or extruding the mixture from step (viii).

Abstract: A high throughput, automated process for coating ceramic monoliths used as catalytic converters that overcomes problems with coating monoliths individually in a mold. The monoliths are provided with end caps to cover the open functional ends, then loaded serially into an inlet channel leading to an extrusion chamber. As each monolith is pushed into the channel, one monolith enters the extrusion chamber, and the monolith just coated in the extrusion chamber is made to exit onto a finished part conveyor. Thereafter, the end caps are removed and cleaned for reuse on new monoliths yet to be coated.

Abstract: In a method for recovering pure PVC from pre-disintegrated PVC containing substance mixtures, the substance mixture is soaked in a swelling agent for PVC, is supplied under pressure into an arrangement of at least two sequential hydrocyclones, wherein, in the first hydrocyclone, a heavy fraction of impurities is separated in the sink flow and a light fraction of swelled PVC particles and light impurities and plastic particles are separated in the rising flow, wherein the pre-cleaned light fraction is sorted and the particle fraction comprising the swelled PVC particles and smaller plastic particles is fed to the second hydrocyclone in which the PVC particles are separated in the sink flow. The invention also describes a device for carrying out the method.

Abstract: A fuel cell separator made of conductive material and resin wherein the conducive material is recycled from waste of fuel cell separators. The fuel cell separator consisting of conductive material and resin is made by using the waste of fuel cell separator consisting of conductive material and resin. The waste of fuel cell separator is pulverized to powder and is mixed with unused resin and, if necessary, supplemental conductive material, to establish powdered material. The powdered material is molded under the predetermined molding pressure and temperature. The fuel cell separators using the recycled material are comparable to fuel cell separators made solely from new material. In another aspect, a method of producing a fuel cell separator using the recycled material is disclosed.

Abstract: For the manufacture of shaped parts (6) from ceramics, for example for dental-technical purposes, first of all a powdery ceramic raw material is compressed to form a ceramic green compact (4). The inner contour and/or the outer contour of the shaped parts (6) is then prepared by machining the ceramic green compact (4) by means of eroding methods, with the ceramic green compact (4) being embedded into a workpiece receiver (1) before the Machining by means of an embedding mass (3) which neither damages nor reacts chemically with the ceramic green compact (4). Subsequently, the machined ceramic green compact (4) is sintered to form a high-strength ceramic shaped part. A ceramic material which is almost shrinkage-free during sintering is preferably used.

Abstract: Polyurethaneurea powders, prepared from spandex under specific process conditions, are provided.

Abstract: In a process for producing tiles, the waste material is ground to a reduced size, ferrous metals are removed from the waste material, the waste material is mixed with a binder to form a mixture after grinding, and the mixture is molded to form the tiles. The binder includes magnesium oxide, a regulating agent for accelerating the hardening of the magnesium oxide, a modifying agent selected from a water-reducing agent, a water-repellent agent, a water-resistant enhancing agent, and an active agent which can react with excess magnesium ions in the binder to form an insoluble magnesium salt, and a degrading agent for degrading heavy metal toxic substances contained in the waste material.

Abstract: The present invention relates to a process for producing a powder from a packaged tablet, the package comprising plastic materials, whereby the process is characterised in that it comprises a first step of submitting the packaged tablet to mechanical degradation with first mechanical degradation means, a second step of sifting with first sifting means to obtain an intermediate material, a third step of submitting the intermediate material to mechanical degradation with second mechanical degradation means, and a fourth step of sifting with second sifting means to obtain the powder, whereby the powder obtained comprises less than 0.05% per weight of plastic material.