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WO/1991/011312A1 |
Sintered compacts made of aromatic polyesters, produced from diphenols such as 1,1-bis(4-hydroxyphenyl)-1-phenylethane or 9,9-bis(4-hydroxaphenyl)fluorene, as well as phthalic acid halides, have one or several glass transition temperatur...
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WO/1991/011326A1 |
Process for unifying under heat thin structures (20) of synthetic material such as woven and non-woven fabrics, moquettes and other kinds, with manufactured products (13) made of plastic material, especially by means of well-known techni...
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WO/1991/009717A1 |
A finishing process for water-slurried elastomers wherein a partially dewatered elastomer is presented to an enclosed, low shear, self-cleaning, long residence time dryer for drying at low temperatures in order to remove the remaining wa...
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WO/1991/008883A1 |
A premolded bulk body of a fiber-reinforced composite material constituted of a resinous material composing a matrix into which reinforcing fibers are dispersed, and a method of molding said premolded body into a desired shape, in which ...
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WO/1991/008884A1 |
A polymer melt delivery system comprises a preheated hopper, a high clearance auger, a gear pump, and means for delivering heat to the polymer. The resin is melted and fed to the auger and pumped to the gear pump and further pumped to an...
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WO/1991/007264A1 |
An apparatus for densifying expanded plastics material or other plastics products comprises a chamber (10) having a wall (16) which is cast from metal and incorporates an e.g. electrical heating element (20) cast therein, and an outlet i...
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WO/1991/007272A1 |
Members such as natural gas distribution pipes (10, 12) of polyethylene or other plastics material are assembled with an internal liner (14) and heat is applied to the pipes externally by an electric heater assembly (18). After cooling t...
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WO/1991/006420A1 |
An adhesive-coated thermoplastic film (64) is stretched and bonded to a three-dimensional substrate by vacuum thermoforming at a lower than normal temperature, at which the film has an elastic modulus of at least 109 dynes/cm2, followed ...
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WO/1991/001207A1 |
A method and apparatus for cooling, separating, pelletizing, shaping, agglomerating and coating hot tacky particulates, particularly those of elastomeric polymers, wherein a gas stream containing the hot tacky polymer particulates is int...
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WO/1991/000795A2 |
The invention comprises a method and apparatus for recycling foamed polystyrene from municipal solid waste and more particularly from fast food restaurant waste. A steady stream of waste is delivered to a flail mill for reducing particle...
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WO/1990/014216A1 |
A system for controlling calendering roll diameters in continuous sheetmaking systems includes profile actuators (27) spaced from one another at generally decreasing distances (D1>D2>D3>...>DN) along a plenum (25) which extends from edge...
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WO/1990/010410A1 |
Apparatus and methods for the formation of biaxially oriented thermoplastic articles having flat surfaces or sharp contours, along with the articles themselves, are disclosed by the present invention. Such apparatus and method relate to ...
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WO/1990/008636A1 |
A wall for a package is produced by a process which comprises the steps of: (A) producing a preform of the wall, and (B) stretching the preform to produce the wall, the time between the completion of step (A) and the commencement of step...
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WO/1990/006173A1 |
The apparatus is comprised of a receptacle (1) separated inside by a perforated partition wall (12) which provides for the passage of a sweeping gas. An appropriate rotor (6) provided with blades (10) and (11) allows to temporarily maint...
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WO/1990/005625A1 |
The invention relates to a method for temperature conditioning a blank (10) of plastic material, a conditioning mandrel (20) being placed within the blank (10) and thereafter expanded to reliable abutment against the inner surface of the...
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WO/1989/011073A1 |
The device disclosed comprises a vertical pipe which forms at the same time the envelope of the bubble layer chamber (1) of the crystallizer and the drier chamber (3). The crystallizer and the drier communicate through an aerating surfac...
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WO/1989/009123A1 |
A method of manufacturing a moulding compound for producing fibre-reinforced plastics articles makes use of scrap prepreg material, i.e. carbon, aramid or other fibre material pre-impregnated with a thermosetting plastics material in a p...
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WO/1989/008544A1 |
Method and apparatus for sealing the end of a thermoplastic tube (10) wherein a tapered mandrel (16) is heated to a temperature above the melting point of the tube and is inserted into the tube to force direct contact of the tube (10) wi...
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WO/1989/007042A1 |
A device for processing thermoplastics has a container (1) in which the plastic is size-reduced by a rotating tool (4) fitted with several blades. The plastic is then removed from the container (1) through an extruder screw (10). The con...
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WO/1989/006593A1 |
The present invention refers to a method for controlling the melt temperature of a plastic raw material in the manufacture of plastic articles as well as a device for performing this method. Increased melt temperature is reached and/or m...
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WO/1989/005278A1 |
The invention relates to the field of hot melt dispensing, and in particular, dispensers capable of: unloading a drum of solid hot melt into a supply reservoir; liquifying the hot melt to a dispensable state; and dispensing the liquified...
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WO/1989/005333A1 |
A phenol formaldehyde condensation product containing on average more than two aromatic hydroxyl groups per molecule, having a hydroxy equivalent in the range 100 - 110 and a Kofler melting point greater than 75�C and a glass transitio...
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WO/1989/003979A1 |
A thermoplastic melting apparatus (10) comprises a tank (18) pivotally mounted upon bearings (54) within the interior of a housing (12) having a top cover (22). An electrical (140), (142) or mechanical level indicator device (44) is moun...
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WO/1989/003249A1 |
A cutting rotor has interchangeable blades for size reduction of solid materials, preferably for granulation of plastics. The clamping part of the blades, opposite the cutting side, is pressed against a support. At least one pressure cha...
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WO/1989/001949A1 |
The extrudability of a vinylidene chloride interpolymer pellet displaying a first endotherm, as determined by differential scanning calorimetry according to American Society of Testing and Materials Test Method D-3417, below 75�C is im...
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WO/1989/001366A1 |
A system and method for recovering hot-melt materials for reuse in a glue gun (50) includes a flexible mold form (14) mounted in a carrier (12) and having an internal cavity that approximates the dimensions of the preformed hot-melt stic...
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WO/1988/009262A1 |
An apparatus for flanging tubular articles of a thermoplastic polymer which has been drawn and heat-set to an elevated temperature comprises a heating die (20) shaped to receive an end of one of the tubular articles (10) and to restrain ...
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WO/1988/008751A1 |
The disclosure relates to an apparatus for granulating excess material in the production of plastic articles by means of knives (41) disposed at one end of a feeder screw (20) and cooperating with a number of preferably fixed counter kni...
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WO/1988/006494A1 |
A method for forming three-dimensional objects comprises irradiating with a source (24) an uncured photopolymer (11) by transmitting an effective amount of photopolymer solidifying radiation through a radiation transmittant material (13,...
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WO/1988/006085A1 |
In a mixing and shearing roll mill for plastifiable material (18) with two identical or different temperature-controlled rolls (1 and 2) rotating in opposite at separately adjustable speeds, which form a plastification nip (16) over thei...
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WO/1988/005374A1 |
A method of obtaining rubber powder on the basis of natural or synthetic rubber in a screw-cam desintegrator consists in squeezing the natural or synthetic rubber to a pressure of 0.2 - 0.7 MPa in the screw zone of the desintegrator and ...
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WO/1988/004984A1 |
An apparatus (10) for melting and dispensing rapidly degradable reactive adhesive such as moisture curable hot melt adhesive from a thermally conductive, sealed container (48) includes a housing (12) within which the container (48) is su...
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WO/1988/003861A1 |
A method for agglomerating and dewatering elastomeric material having a relatively high water content wherein the elastomeric material is fed to a pair of counterrotating pressing rolls with a tight nip opening. The elastomeric material ...
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WO1988003467A1 |
A hot melt dispensing apparatus (10) for converting solid thermoplastic material to molten thermoplastic material and for dispensing the molten thermoplastic material comprises a solid thermoplastic material receiving hopper (11), a vibr...
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WO/1988/003467A2 |
A hot melt dispensing apparatus (10) for converting solid thermoplastic material to molten thermoplastic material and for dispensing the molten thermoplastic material comprises a solid thermoplastic material receiving hopper (11), a vibr...
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WO1988003442A1 |
A device for applying liquid, pasty or plastic, particularly thermoplastic, substances to a substrate, incorporating a system for melting these substances and a coating device to transfer the melted substances onto the substrate by means...
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WO/1988/002684A1 |
A device for processing thermoplastic materials has a container (1) within which a rotative crushing and mixing tool (3) turns around an axis (4) offset if necessary in relation to the axis (8) of the container (1) by the amount (e). The...
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WO/1988/002656A2 |
A filter for hot melt adhesive is carried within a passageway in a manifold and is rotatable therein between a filtering position in which hot melt adhesive is directed to the inner core of the filter at one end thereof, and a backflushi...
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WO/1988/000675A1 |
An apparatus for tempering fluid glues in continuous operation has a heat transfer body made of a cuboid aluminium block (26) in which is integrated the glue channel (24, 25) and the broad side surfaces of which are thermally linked to P...
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WO/1987/004238A1 |
An apparatus for unloading heat meltable material (65) from a container (19) including a vertically movable platen assembly having a platen (21) supported by a platen carriage (35). The weight of the platen assembly is trapped between a ...
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WO/1987/001551A1 |
Sont d�crits un proc�d� et un appareil de r�duction de la viscosit� de mat�riaux tels que des peintures, � l'int�rieur d'un conteneur (12). L'utilisation d'une �nergie �lectromagn�tique dans cette invention am�lio...
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WO/1986/006317A1 |
A polymer filtering apparatus (1) is used to filter a molten polymer in a step of extruding a molten polymer to manufacture films and fibers. A plate type filter medium (4), which is incapable of resisting a filtration pressure, is suppo...
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WO/1986/002312A1 |
Machined steel blocks (1 and 2) have ridges (20) facing valleys in the opposite block. Polypropylene tape (3) to be heat-treated has sliding contact over each ridge on each block. The blocks are heated by heaters (4). The gap between the...
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WO/1986/002023A1 |
According to the method, a fluorine-containing gas compound which is stable to room temperature is brought to a decomposition temperature and is then supplied to the surface to be proofed. The invention is particularly applied to the fab...
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WO/1986/001143A1 |
A heating type drying apparatus removes a trace amount of water contained in a synthetic resin raw material by evaporation. A direct heating type drying apparatus for a synthetic resin raw material includes a high-frequency induction hea...
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WO/1986/000561A1 |
A method and apparatus for the recovery of plastics material in film form, according to which method the separated waste film is comminuted to flakes and is conveyed to a plastics-consuming machine (10, 14) where the flakes are discharge...
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WO/1985/002553A1 |
A polymer filtering apparatus includes a polymer pipe (12, 112) having a multiplicity of through-holes formed in its peripheral surface, and leaf filters (13, 113) and support members (14, 14a, 114, 114a) which are detachably and alterna...
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WO/1985/001467A1 |
Polymer processing apparatus (10) having a section for processing polymer at a relatively low pressure sufficient only for processing; and having a section for pumping the polymer in liquid form for increasing the pressure in the polymer...
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WO/1984/002138A1 |
A hydrogel polymer-based lubricating layer on a flexible rubber article (such as a surgeon's glove) or other polymer article by applying a solution having dissolved therein a hydrophilic hydrogel-forming polymer (such as a copolymer of 2...
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WO/1982/001533A1 |
A laminated tubular structure (10) is obtained by a process in which a fabric sleeve (12) is applied about a tube (11) of thermoplastic polymer, following which plugs (16, 17) are inserted into the opposing ends of the liner (11). A liqu...
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