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WO/1994/007670A2 |
Old tires are cut into strips (49), cryogenically cooled in liquid nitrogen (60) to make the rubber brittle, and the frozen strips fed through a pair of pinch rollers (30A). One of the rollers has a grooved and knurled surface. The rolle...
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WO/1994/005431A1 |
The invention relates to containers (10) for hot melt adhesives (25) containing isocyanate compounds and to such containers used with heated platen (16) dispensing equipment for the hot melt. More particularly, the invention relates to c...
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WO/1994/003323A1 |
A method of recovering reusable foam particles from a molded product of foam particles which is manufactured by using foam particles coated with a thermoplastic resin having a melting point lower than that of the synthetic resin constitu...
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WO/1994/000252A1 |
Industrial waste containing thermoplastic materials, possibly mixed with other solids, is compacted to enable storage in a non-bulky form, particularly in drums. The compacting machine comprises an induction furnace (2) with a vessel con...
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WO/1993/025312A1 |
A device for plasticising thermoplastic material, especially waste, has a plasticizing worm (18) carried in a housing (21) into which the material to be plasticised is introduced via an inlet aperture (16). At this inlet aperture (16) th...
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WO/1993/023224A1 |
A non-blocking hot melt adhesive mass is prepared by (a) lining a rigid mold with a plastic film, said film being meltable together with the adhesive composition and blendable into said molten adhesive composition, and said mold being a ...
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WO/1993/023463A2 |
The present invention is directed to the process and apparatus for compounding and pelletizing of chemical foaming agents in a high melt resin carrier and producing unique, uniform encapsulated and pelletized chemical foaming concentrate...
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WO/1993/020395A1 |
An apparatus (10) for the constrained drying and/or heat treating of a continuous roll of film. This apparatus (10) includes a mechanism (46) which grasps a film (112) by its edges and moves said film (112) through a drying zone, with sa...
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WO/1993/019917A1 |
Described is a method of re-using used expanded polyurethane, in which the starting material is first dried to a cavity moisture content of 2 to 4 % and then introduced into a multi mould (16, 17, 18) designed to give the required mouldi...
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WO/1993/020125A2 |
This invention relates to a process for removing foreign materials from a post-consumer polyethylene terephthalate feed stream which comprises: (1) depolymerizing the polyethylene terephthalate feed stream into a melt having a melt visco...
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WO/1993/018902A1 |
A device for pre-processing a synthetic thermoplastic material, such as polyester waste, comprises at least two containers (1, 13) connected in series, in each of which a comminuting and mixing tool (5) rotates at the base of the contain...
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WO/1993/018901A1 |
Disclosed is a device for cooLing, granulating and drying molten strands of synthetic thermoplastic material ermerging form dies. It comprises a cooling unit which feeds the strands into a bath of cooling liquid and to which is connected...
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WO/1993/017850A1 |
A device for cooling and granulating molten thermoplastic strands (1) emerging from dies (2) which either drop along the falling line starting at the dies or are guided in an operating position through a coolant bath (9), freely stressed...
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WO/1993/012297A1 |
A composite paving block formed from desired proportions asphalt, plastic such as polyethylene or phenolic resin, elastomeric material such as rubber or polyvinylchloride, and fibre material such as nylon or rayon, is disclosed. Recycled...
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WO/1993/012169A1 |
A material composed of carbon compounds may be shaped into high-quality moulded bodies, foils, plates, pipes or the like by all usual plastics processing machines, and may further be reused several times with no perceptible loss of quali...
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WO/1993/011919A1 |
A process for quickly drying thermoplastic polyamide resin by the use of a high frequency electric field. The process comprises placing the polyamide between at least two electrodes, applying a high frequency voltage to the electrodes to...
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WO/1993/008975A1 |
The invention concerns a process and device for the continuous filtration of thermoplast melts and for the separation of different thermoplastics by virtue of their different melt characteristics when the temperature is increased, the ga...
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WO/1993/008015A1 |
In order to temperature-control thermoplastic floor coverings when they are laid, thus avoiding the necessity to allow them to lie for a long period at the site where they are laid, the invention proposes a heating device containing at l...
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WO/1993/005883A1 |
A resin reinforced fibre product such as glass fibre impregnated with a thermosetting resin is treated to recover fibre by initially shredding (12) the waste, pulverising (24) the shredded waste and sieving (26, 34, 42) the pulverized wa...
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WO/1993/004844A1 |
A hot gas heating device is disclosed which is used for heating an upper open end region of a tubular body (7) prior to it being heat-sealed. The device comprises a nozzle housing (1) including a casing (2) accommodating a heating nozzle...
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WO/1993/004843A1 |
A process for increasing the crystallization rate of a sheet of amorphous polyester (26) including the steps of raising the temperature of the sheet (26) to or above the glass transition temperature of the polyester, stretching the sheet...
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WO/1993/003851A1 |
In the method disclosed, plastics materials, in particular materials of similar density such as poly(ethylene terephthalate) and poly(vinyl chloride), are separated using electrostatic techniques, the mixture being subjected to heat trea...
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WO/1993/003902A1 |
By means of the method according to the invention, it is possible to re-use polystyrene plastic foam items (1), such as gases and the like, by comminuting the items and thereafter heating the comminuted material in a vessel (11) until it...
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WO/1993/003852A1 |
The invention calls for mixtures of plastics materials, in particular materials of similar density such as polyethylene and polypropylene, to be separated using electrostatic techniques, the mixture being subjected to a surface-treatment...
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WO/1993/001034A1 |
A process for preparing a composite from an intake material comprising a mixture of plastic and fibrous material comprises first granulating and sizing the material. The material is then heated in three consecutive phases, first at a tem...
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WO/1993/000216A1 |
A process is disclosed for producing multiple-layer moulded bodies by injection of a laminate (16) composed of an essentially flexible, foil-like surface material (19) such as leather or textiles, and a foam layer (22) laminated on the b...
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WO/1993/000209A1 |
The invention relates to a process for impregnating a flat, fibrous substrate material where a low-viscosity, liquid synthetic resin impregnates the material, in which the web (1) of substrate material is preheated by means (2) known per...
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WO/1992/019378A1 |
A transfergrinder device (10) for grinding a feed material. The transfergrinder device (10) includes a grinding stator assembly (14) and a grinding rotor assembly (12) disposed generally axially concentric within the grinding stator asse...
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WO/1992/018321A1 |
A heating device for recovering a heat-recoverable plastics sleeve about a portion of a wire harness comprises a housing having a heating location when the portion of the harness and heat-recoverable sleeve are introduced, and a heating ...
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WO/1992/016969A1 |
Tablets are made by cooling and solidifying a molten resin composition, having a compressibility C of 98 % or more and a metallic impurity content (including iron ions; the same applies hereinbelow) of less than 50 ppm. It is particularl...
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WO/1992/016987A1 |
A heat reshapeable rigid conduit and method for forming an elbow or offset having any desired bend radius therefrom. The rigid conduit is formed of a flexible metal tubing with a layer of heat softenable plastic preferably covering the e...
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WO/1992/016307A1 |
Providing a supply of adhesive (11) inside the plate and directly connected to the upper layer of molten adhesive in the drum (4) being emptied allows drums to be automatically replaced without cutting the supply to the guns. The supply ...
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WO/1992/011121A2 |
A panel (26) having a honeycomb core and thermoplatic resin facings with adhered decorative polyvinyl fluoride overlayer (24) is shaped in a press (16) after being preheated to the softening temperature of the esin and the placing of the...
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WO/1992/010125A1 |
A cubic melting device as shown in Fig. 2 for repeatedly melting polyethylene exclusively, in which five vessels as shown in Fig. 1 each filled with polyethylene are housed. The device can be easily operated with signal setting. Some mod...
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WO/1992/008590A1 |
A method and an apparatus for treating contaminated plastics waste, comprising densifying contaminated plastics waste by causing the waste to pass through a heating zone to produce molten contaminated plastics, and causing the molten con...
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WO/1992/007663A1 |
A dispenser for a hot melt adhesive with a first container (12) having a mass of hot melt isocyanate within the container, a second container (12a) identical to the first one, wherein said second container (12a) abuts the first container...
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WO/1992/007696A1 |
An apparatus for reducing waste plastics articles comprises a passageway extending through it, and a grid (16) of electrically heated bars disposed across it. Plastics articles are fed into the passageway through an entry (12) above the ...
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WO/1992/007900A1 |
The invention relates to a process for treating (recycling) lacquer coagulates containing lacquer overspray and layered silicate-containing coagulating agents in which the layered silicate-containing paint coagulate is vaccum-dried, proc...
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WO/1992/005026A1 |
The invention relates to a preform for a polyester bottle, having applied to its surface a coating of a material that lowers the coefficient of friction of the polyester and to a method of producing a preform for a polyester bottle, prov...
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WO/1992/002348A1 |
The invention relates to a method of packaging an adhesive composition, especially a thermoplastic or thermosetting hot melt adhesive. The method comprises the steps of providing one substantially uniform separate portion of the adhesive...
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WO/1992/002569A1 |
Disclosed is a configuration for a polymer pellet having improved reactivity for solid-state polymerization and less tendency to stick during processing with heat. The pellets have a reduced path length for volatiles to travel to the ext...
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WO/1992/002355A1 |
A device and a method for shrinking heat recoverable sleeves for covering cable joints comprising a heating device the interior of which has a plurality of independently energisable heating elements and at least one sensor and a control ...
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WO/1991/017876A1 |
A method and an apparatus for separating out the economic components of scrap rubber tires, wherein the rubber tires are passed through a first shredder (14), a rotary screen (18), and a magnetic separator (72). The non-magnetic fraction...
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WO/1991/016185A1 |
A process for cooling rubber crumb wherein the rubber crumb is presented for cooling to a first stage pneumatic conveyor containing a hot wet first stage air stream. The rubber crumb is cooled in the first stage pneumatic conveyor to a f...
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WO/1991/016136A1 |
An interstage separator is provided for transferring polymeric crumb from a first stage pneumatic conveyor with hot wet air, to a second stage pneumatic conveyor with cool dry air. The interstage separator is characterized by a tangentia...
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WO/1991/016191A1 |
A method and apparatus are shown for forming a flange on an end of a plastic pipe liner (31) of the type used to line a tubular member. A reinforced disc (39) having a rigid portion and an elastomeric portion is placed about the liner ex...
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WO/1991/015351A1 |
Component processing apparatus for curing and/or moulding synthetic resin composites in the production of components comprises a component support (11) on which a component (15) is mounted and on which is formed at or in the region of it...
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WO/1991/014563A1 |
Purpose: to provide a polyester container which is highly crystalline and excellent in the transparency and heat distortion resistance even in a high-temperature heating atmosphere. Constitution: a copolyester resin comprising 70 to 99 m...
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WO/1991/014552A1 |
The description relates to a process for preparing rubber-containing waste for further treatment by making use of the brittleness of individual components of the waste by cooling the waste, in which the rubber-containing wastes is milled...
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WO/1991/011308A1 |
A method for manufacturing a composite material involving intimately and homogenously mixing at least two constituents, characterized in that said mixture is vibrated in a container at a frequency which is close to the mean resonance fre...
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