Abstract: A method of producing a polyurethane foam sheet, and a laminated sheet that uses such a foam sheet, that can be applied to artificial leather, synthetic leather, and cushioning materials used in all manner of applications. A polyurethane foam sheet is produced by applying a liquid mixture, obtained by mixing together a heated and melted hot melt urethane prepolymer (A) containing isocyanate groups at molecular terminals, and a compound (B) containing at least 2 active hydrogen atom-containing groups, onto a substrate in a sheet-like manner, and then water foaming the liquid mixture by bringing the sheet-like liquid mixture into contact with water vapor or moisture (water). A laminated sheet is produced by bonding a third substrate to the polyurethane foam sheet.

Abstract: The present invention relates to an apparatus and method of producing lengths of multi-layered asymmetric membrane (10) by way of extruding different feedstock through a die head (46,78) having a plurality of outlet ports. The membrane (10) includes a plurality of apertures extending therethrough, and at least some of said apertures increase in cross-sectional area from a first surface of the membrane to a second surface of the membrane. The present invention provides a method of constructing membrane in desired lengths and reduces the need to weld portions of membrane together to produce extended lengths of membrane tube.

Abstract: The invention relates to a polyolefin composition. The polyolefin composition can be in the form of a multi-layer, microporous polyolefin membrane comprising a first microporous layer containing 7% or less by mass of ultra-high-molecular-weight polyethylene having a weight-average molecular weight of 1×106 or more, and having a structure in which a pore size distribution curve obtained by mercury intrusion porosimetry has at least two peaks, and a second microporous layer containing 8% or more by mass of the ultra-high-molecular-weight polyethylene.

Abstract: A fiber optic cable includes an optical fiber, a strength layer surrounding the optical fiber, and a jacket assembly surrounding the strength layer. The jacket assembly includes a foam. A method for manufacturing a fiber optic cable includes mixing a base material, a chemical foaming agent and a shrinkage reduction material into a mixture in an extruder. The mixture is heated so that the base material and the chemical foaming agent form a foam with shrinkage reduction material embedded into the foam. An optical fiber and strength layer are fed into a crosshead. The mixture is extruded around the optical fiber and the strength layer to form a jacket assembly.

Abstract: In some preferred embodiments, a heat shrinkable foamed sheet has a foamed layer (2) constituting a core layer, and a non-foamed layer (3) constituting a surface skin layer integrally formed on the formed layer. The non-foamed layer (3) is less than about 1.55 ?m in maximum surface smoothness measured in accordance with ISO8791-4. Alternatively, by regulating various dimensions of foam cells formed in the foamed layer (2) so as to fall within predetermined ranges, a heat shrinkable foamed sheet excellent in surface smoothness and printing nature can be obtained.

Abstract: A process for manufacturing an electric cable including at least one core including a conductor and an insulating coating surrounding the conductor includes the steps of: providing a polyolefin material, a silane-based cross-linking system and a foaming system including at least one exothermic foaming agent in an amount of 0.1% to 0.5% by weight with respect to the total weight of the polyolefin material; forming a blend with the polyolefin material, the silane-based cross-linking system and the foaming system; and extruding the blend on the conductor to form the insulating coating. An electric cable includes at least one core consisting of a conductor and an insulating coating surrounding the conductor and in contact therewith, the insulating coating consisting of a layer of expanded, silane-cross-linked polyolefin material having an expansion degree of 3% to 40%.

Abstract: A multi-layer, microporous polyethylene membrane having at least two layers, which comprises (a) a microporous polyethylene resin layer A comprising high-density polyethylene A having 0.2 or more terminal vinyl groups per 10,000 carbon atoms when measured by infrared spectroscopy, and (b) a microporous polyethylene resin layer B comprising high-density polyethylene B having less than 0.2 terminal vinyl groups per 10,000 carbon atoms when measured by infrared spectroscopy, has well-balanced permeability, mechanical strength, heat shrinkage resistance, shutdown properties, meltdown properties and oxidation resistance.

Abstract: Disclosed is a die plate for a die block having a coat-hanger-shaped flow path for extruding a molten foamable thermoplastic resin in a form of a sheet. The die plate is for arrangement on a downstream side of the coat-hanger-shaped flow path to make a flow rate of the molten foamable thermoplastic resin uniform in a width direction. The die plate is provided with a multiplicity of delivery apertures. In the delivery apertures, the delivery apertures in opposite side regions have a diameter greater than a diameter which the delivery apertures in a center region have. A die unit composed of a die block, which has a multiple bifurcated manifold terminating in plural coat-hanger-shaped flow paths at downward ends thereof, and a like plural number of similar die plates as described above; a process for producing a wide thermoplastic resin foam by using the die unit; and the wide thermoplastic resin foam are also disclosed.

Abstract: A glass run is provided with extruded portions and a molded portion. The extruded portions and molded portion each have an extension portion provided in the base portion so as to extend and contract in a direction toward the inside and outside of a vehicle. The extension portion is provided at a position which deviates from a position of the base portion which constitutes a section defined as extending from a position which intersects with an extension along an interior side of the door window glass to a position which intersects with an extension along an exterior side of the door window glass and to which an end face of the door window glass is opposed.

Abstract: A method for manufacturing a composite material is disclosed, and the method includes providing a sheet object, submerging the sheet object in a thermosetting resin to form a compound, rolling up the compound to a hollow formation, stuffing a substance into the hollow compound, and heating up and solidifying.

Abstract: The present invention provides a foamed sheet for a reflector which can be transformed to a reflector having a desired shape by thermoforming. A foamed sheet A for a reflector of the present invention is characterized by being a foamed sheet for a reflector including a polypropylene-based resin foamed sheet 1 which has an average cell diameter of from 50 to 650 ?m and at least one surface which is an uneven surface 12 formed by cells 11 located in the vicinity of the surface, and a polypropylene-based resin non-foamed sheet 3 integrally laminated on the polypropylene-based resin foamed sheet 1 in conformity with the uneven surface 12 and having an uneven surface 31, wherein the foamed sheet A for a reflector contains an inorganic filler in an amount of from 50 to 200 g/m2, the whole or part of the inorganic filler is contained in the polypropylene-based resin foamed sheet 1, a refractive index of an inorganic filler 2 differs by 1.

Abstract: The invention relates to a biaxial oriented film with a microporous layer, comprising a propylene polymer and at least one ?-nucleating agent the microporosity of which is generated by conversion of ?-crystalline polypropylene on drawing the film and the use thereof for the labelling of containers in blow moulding. The Gurley value for the film is 10,000 to 300,000 Gurley.

Abstract: Extruded composite compositions of PVC and wood particles containing chitosan or chitin as a coupling agent are described. The composite compositions have improved physical and mechanical properties.

Abstract: A method for forming a microporous membrane having a microstructure is described. Dope and coagulant formulations are simultaneously cast, where the coagulant formulation diffuses into the dope formulation through an interface effecting a phase inversion forming a microstructure.

Abstract: A method of forming an extrusion comprises passing a first, plastics material (12) through a first channel (104) in a die, passing a second, plastics material (14) through a second channel (112) in the die, and passing a third, plastics material (16) through a third channel (314) in the die. At least one of the materials is passed through a metering gap into contact with the other materials to cause the at least one material to bond with the other materials as the materials pass through the die.

Abstract: A method of producing a composite sheet having a foam layer of a first polyolefin-based resin and a surface layer of a second polyolefin-based resin provided on at least one side of the foam layer and containing a polymeric antistatic agent. The method includes coextruding through die a first melt containing the first polyolefin-based resin and a physical blowing agent and a second melt containing the second polyolefin-based resin, the polymeric antistatic agent and a volatile plasticizer to obtain the composite sheet. The amount of the polymeric antistatic agent is 4 to 100 parts by weight per 100 parts by weight of the second polyolefin-based resin and the amount of the volatile plasticizer is 5 to 50 parts by weight per 100 parts by weight of a total amount of the second polyolefin-based resin and the polymeric antistatic agent. The second polyolefin-based resin has a crystallization temperature of Ta [° C.

Abstract: An automobile trim has a trim body (a base layer) formed of a rubber composition and having a design surface, a decorating layer formed of a thermoplastic elastomer composition and thermally bonded integrally with the design surface of the trim body. A thermal bonding layer is formed of a thermoplastic resin composition and interposed between the decorating layer and the trim body so that the decorating layer is thermally bonded integrally with the trim body through the thermal bonding layer. The thermal bonding layer has a thickness to an extent not to prevent bending flexibility when the trim is attached to a vehicle body. In another example, a cushion layer is laminated on the trim body and formed of sponge rubber of EPDM, a decorating layer is laminated on the cushion layer and formed by foaming olefin thermoplastic elastomer, and an olefin bonding layer for bonding the cushion layer and the decorating layer.

Abstract: Polymer molding processes, such as injection-molding processes, include use of a viscosity-reducing supercritical fluid additive resulting in less breakage of reinforcing fibers upon introduction into the mold.

Abstract: A method of manufacturing a blank for a floatation device is disclosed. Polystyrene material is introduced into an extruder and heated. The molten polystyrene is then blown with carbon dioxide to form a polystyrene foam that is extruded into a sizing tunnel to create a desired cross-section for a floatation device blank. The carbon dioxide pressure is preset to provide a resulting polystyrene foam having desired rigidity and density characteristics, and other softening agents may be used to achieve desired rigidity and density characteristics. The extruded polystyrene foam is then cut into blocks of predetermined length, which are then cut and shaped into a desired floatation device blank that may be finished as with conventional blanks.

Abstract: An optional venting container comprises a base and a lid. The lid is releasably latched to the base. The lid comprises at least one ventable area formed therein. The at least one ventable area is adapted to form a vent only upon a user asserting pressure thereon. The lid is made from a polymeric foam.

Abstract: A hose for use in bio-pharmaceutical applications includes an innermost tubular layer made from a fluoropolymer material. The tubular layer has an inner, relatively smooth and pure surface that defines an opening for transfer of various media. A layer of silicone is disposed next to an outer surface of the innermost tubular layer through use of, for example, an extrusion method. The outer surface of the tubular layer may first be modified by various treatments or chemicals to facilitate the adhesion of the silicone layer thereto. The silicone material may be solid or foamed. A reinforcement layer may be disposed adjacent to an outer surface of the silicone layer. The reinforcement layer may be formed of a wire braid having gaps. An outer jacket of silicone may be attached to the reinforcement layer and to the inner silicone layer through the gaps in the reinforcement layer.

Abstract: A method for manufacturing resin films includes steps of mixing PU resin and hydroxyl compound to become a first-kind first-phase mixture, and of mixing a pigment with a foaming agent to become a second-kind mixture, of injecting the first-kind mixture into a kneading device to get mixed and kneaded to become a first-kind second-phase mixture, of sending the first-kind second-phase mixture into a second kneading device to get a first-kind third-phase mixture, and the second-kind mixture and the first-kind third-phase mixture both sent into a conveyer to get a third-kind mixture, and the final step is to send the third-kind mixture into a coating device for coating the third-kind mixture on a substrate cloth to get a resin film of an original color and fresh brilliance.

Abstract: A method of manufacturing a chemical-mechanical polishing (CMP) pad comprises the steps of (a) forming a layer of a polymer resin liquid solution (i.e., a polymer resin dissolved in a solvent); (b) inducing a phase separation in the layer of polymer solution to produce an interpenetrating polymeric network comprising a continuous polymer-rich phase interspersed with a continuous polymer-depleted phase in which the polymer-depleted phase constitutes about 20 to about 90 percent of the combined volume of the phases; (c) solidifying the continuous polymer-rich phase to form a porous polymer sheet; (d) removing at least a portion of the polymer-depleted phase from the porous polymer sheet; and (e) forming a CMP pad therefrom.

Abstract: Prepare a foam structure that includes hollow coalesced foam strands and, optionally, solid coalesced foam strands using an extrusion die block equipped with apertures that promote forming the hollow strands and, optionally, the solid foam strands.

Abstract: Process for controlling the capacitance value (C1) of a tubular sheath (1) formed by extrusion of an insulation compound (2) on an electrical cable (3) in an extrusion head (4), a foaming agent (FA) being introduced in the insulation compound (2) in such a way as to improve the capacitance value (C1) of the tubular insulation sheath (1), this process being characterised in that: a predetermined amount of foaming agent (200) is used in such a way as to obtain a predetermined capacitance value (C1) for the tubular insulation sheath (1), and in order to control precisely the capacitance value (C1) of the tubular insulation sheath (1), a gas pressure (110) is applied on at least a portion of a face (100, 101) of the insulation compound (2) extruded by the extrusion head is (4), the value of the gas pressure (110) is changed in such a way as to control the capacitance value (C1) of the tubular insulation sheath (1).

Abstract: A low molecular weight polyphenylene ether having a reduced viscosity of 0.04 to 0.18 dl/g as measured at 30° C. in a 0.5 g/dl chloroform solution, and a molecular weight distribution of 1.5 to 2.5; or a low molecular weight polyphenylene ether powder comprising the low molecular weight polyphenylene ether exhibits high thermal resistance and excellent electric properties, and thus is useful as electric materials such as printed circuit board and as modifiers of other resins.

Abstract: There are provided a plasticizing-kneading step of plasticizing a reinforcement fiber and a resin in a cylinder having a screw, and a metering-injecting step of supplying a physical foaming agent to the resin and injecting them into a cavity of a mold, after metering the necessary amount of resin for molding, a foaming-agent supplying step of supplying the physical foaming agent to the resin passed through a nozzle after being plasticized, and a mixing-dispersion promoting step of promoting mixing and dispersion of the physical foaming agent in the resin in a resin flow path from a supply portion of the physical foaming agent to the cavity of the mold. Accordingly, any breakage of reinforcement fiber is prevented and the mixing and dispersion of the physical foaming agent is improved.

Abstract: The present invention provides for a method of producing an integral multilayered porous membrane by simultaneously co-casting a plurality of polymer solutions onto a support to form a multilayered liquid sheet and immersing the sheet into a liquid coagulation bath to effect phase separation and form a porous membrane. The support can be a temporary support or form an integrated support for the membrane. The plurality of layers may be of the same polymer or different, same concentration or viscosity or different and may be subjected to the same processing conditions or different ones to form unique structures.

Abstract: A hollow bead of high quality is applied and molded into a shape corresponding to and following a shape of an applying position onto which the bead is to be applied. A bead-molding apparatus includes a discharging device of a double nozzle structure comprised of an inner nozzle and an outer nozzle, a highly viscous material feed unit for feeding a highly viscous material that is fluid in a form of a stream in a high speed flow region and can retain a shape into which it is applied and molded in a low speed flow region, a manipulator disposed so as to transfer the discharging device mounted thereon to a desired position, and a controller for controlling overall operations of the apparatus. The discharging device is controlled so as to move along the applying position of a member while feeding gases thereto from the inner nozzle and discharging the highly viscous material thereto from the outer nozzle.

Abstract: A method for preparing a poly(arylene ether) with a reduced level of powder fines is described. In one embodiment, the method comprises oxidatively coupling a monohydric phenol in the presence of a solvent and a complex metal catalyst, to produce a poly(arylene ether) resin; and then removing a portion of the solvent to produce a concentrated solution having a cloud point Tcloud. The concentrated solution is then combined with an anti-solvent to precipitate the poly(arylene ether) in the form of a precipitation mixture. The concentrated solution usually has a temperature of at least about (Tcloud?10° C.) immediately before it is combined with the anti-solvent. The precipitation mixture has a temperature of at least about (Tcloud?40° C.) after its formation. Related poly(arylene ether) copolymers are also described.

Abstract: A method of making a touch fastener includes coextruding, side-by-side, a plurality of lanes of polymeric material to form a sheet-form base. The sheet-sheet form base includes a lane of a first polymeric material disposed between two lanes of a second polymeric material, the second polymeric material is different from the first polymeric material. The method further includes molding a plurality of discrete fastener element stems extending outwardly from and integral with the sheet-form base in each of the two lanes of the second polymeric mateial and forming engageable heads on the stems.

Abstract: Provided is a method for manufacturing a foam-molded article by molding between molds a parison with a foam layer formed by extruding an expandable molten resin composition, obtained by melt-kneading a polyethylene resin and a physical foaming agent, to an area of low pressure from a die, wherein the polyethylene resin is selected from those having a melt flow rate of 0.1 to 25 g/10 minutes and a melt tension of not less than 1.5 cN, and wherein the apparent density of the foam layer in the foam-molded article is about 0.04 to 0.3 g/cm3.

Abstract: U.S. Pat. No. 6,232,354 issued May 15, 2001 describes an environmentally friendly and commercially practicable process for the production of microcellular polymer foams from amorphous, semi-crystalline and crystalline polymers which involves consolidating the polymer, saturating the polymer with an inert gas at elevated temperature and under elevated pressure, and controllably cooling, i.e. quenching the saturated polymer under a variety of temperature and pressure conditions to produce either a closed or open celled microcellular foam or a high density microcellular foam. It has now been discovered that a process similar to that described in this patent can be used for the production of nanocomposite and molecular-composite foams that exhibit exceptional physical properties.

Abstract: An apparatus for making a marine seismic streamer includes a conveyor for transporting assembled mechanical harness from a storage device therefor to a storage device for storing completed marine streamer. The apparatus includes a first extruder for filling the harness with a void fill material and a second extruder for depositing jacketing material onto the filled harness both extruders being intermediate the two storage devices. A means for changing state of the void filling material is disposed proximate an outlet of the first extruder. In one embodiment, the means for changing state includes a radiation source.

Abstract: An innovative robotic foam application process that integrates system communications, non-contact vehicle insertion point locations, and applications controls to accurately dispense a two-component structural foam at a high volume and flow rate. The process begins by first inserting a baffle within the support structure. After an electrocoat application and bake, the baffles expand and are sealed within the support structure to form cavities having a fill hole. A hydraulic driven robotic dispensing system equipped with a high-pressure static mixer senses the respective fill hole, moves a robotic arm to a location sensed, and injects a high volume of mixed two-component viscous material within each of the respective located fill holes at a high fill rate. After dispensing, the viscous material undergoes an exothermic curing reaction to cure and is expanded to substantially fill each cavity.

Abstract: A device for applying a substance, the device including an applicator member having at least one of a fibrous and cellular element. The element defines a surface for applying the substance. At least a portion of the surface includes projecting fibers. The projecting fibers are attached to a portion of the element. The portion of the element and the fibers may be made out of the same material.

Abstract: A separator for metal/halogen batteries is provided which is excellent in thermal resistance, resistance to stress-cracking and electric properties. A separator for metal/halogen batteries comprising a polyolefin having a viscosity average molecular weight of not less than 350,000 and not more than 2,000,000, in which polyolefin the proportion by weight of a polyolefin having a molecular weight of not less than 1,000,000 is not less than 15% and not more than 80%, and a hydrophilic fine particulate inorganic material(s), wherein the weight ratio of the polyolefins to the hydrophilic fine particulate inorganic material(s) is not less than 0.55 and less than 1, said separator having a pore volume of not less than 900 mm3/g and a thickness of 0.2 to 1.0 mm.

Abstract: An extrusion method and apparatus for producing a cable including at least one core having at least one transmissive element and at least one pair of coating layers arranged at a radially outer position with respect to the core. At least one coating layer of polymeric material and one coating layer of expanded polymeric material are deposited by co-extrusion simultaneously and residual pressure not greater than the external pressure is maintained in a substantially annular interspace defined between the coating layers. The method avoids the formation of bubbles at the interface between the at least one coating layer of polymeric material and the coating layer of expanded polymeric material, attaining an optimal adhesion between the layers.

Abstract: A method of manufacturing a hose includes the step of extruding a tube assembly comprising (i) a first inner non-foamed layer, (ii) a first outer non-foamed layer positioned around the first inner non-foamed layer, and (iii) a first foamed layer interposed between the first inner non-foamed layer and the first outer non-foamed layer. The method further includes the step of positioning a textile reinforcement on the tube assembly. Additionally, the method includes the step of extruding a cover assembly over the textile reinforcement, the cover assembly comprising (i) a second inner non-foamed layer, (ii) a second outer non-foamed layer positioned around the second inner non-foamed layer, and (iii) a second foamed layer interposed between the second inner non-foamed layer and the second outer non-foamed layer.

Abstract: The invention discloses a 5-layer co-extruded biaxial-oriented polypropylene synthetic paper which is a 5-layer laminated structure with thickness between 30–300 ?m comprising the uppermost layer (A) of paper sheet or resin, the second layer (B) of paper sheet or resin, the intermediate foamed layer (C), the forth layer (D) of paper sheet or resin and the bottom layer (E) of paper sheet or resin which is to improve the rigidity and stiffness covering power, strength between layers, glossiness of paper surface, paper thickness and the printability of the conventional synthetic paper.

Abstract: Manufactured articles and methods of producing such articles are disclosed where the article has a thermoplastic polymer component and a curable polymer component. The curable polymer may be moisture-curable polymer, or microwave, dielectric or radio frequency curable polymer. The articles may be manufactured by a variety of polymer processing methods including extrusion, co-extrusion, co-molding, injection molding and calendering. A variety of articles and shapes may be made by the method including electric wire and cable, and weatherstripping.

Abstract: Bristles for applying media are produced in that a filament, which can be cut into bristles, is extruded with a core which also determines the mechanical properties of the bristle. Cavities are formed at a separation from the center of the core and open towards the circumference of the filament which can be filled with medium from the outside, wherein the circumferential openings of the cavities are formed such that the medium is discharged only when the bristle is appropriately used. The cavities may also have a larger opening width and be covered by a layer or jacket. A bristle and brushes having such bristles produced in accordance with this method are also described.

Abstract: The present invention relates to a hollow molded foam article in which a plurality of polypropylene resins are used as the base resin, and to a process for the production of this hollow molded foam article. More particularly, the present invention relates to a polypropylene resin hollow molded foam article having a foam layer, in which the base resin comprises (a) a polypropylene resin with a melt tension of at least 98 mN and a melt flow rate of 0.5 to 15 g/10 minutes, (b) a polypropylene resin with a melt tension of less than 30 mN (excluding O) and a melt flow rate of 2 to 30 g/10 minutes, and (c) a polypropylene resin with a melt tension of at least 30 mN and less than 98 mN and a melt flow rate of 2 to 15 g/10 minutes, formed by positioning in a mold a softened cylindrical foam having a foam layer obtained by extruding from the die of an extruder a foamable molten resin composition containing a foaming agent, wherein the melt tension at 230° C.

Abstract: An extrusion head for the manufacture of tubes including at least one layer of expanded plastic by extruding a stream of molten plastic containing a blowing agent through an annular passage cross section made in the extrusion head. The stream of molten plastic containing the blowing agent spreads out circumferentially and welds itself to itself by the recombining of the two stream fronts. The extrusion head is equipped with a special-purpose thermal regulation device allowing the molten plastic containing the blowing agent to be heated or cooled after the stream fronts have recombined.

Abstract: A process for producing plastic/wood fiber composite foamed structures includes the steps of pre-drying wood fiber filler; mixing it with plastic to form a mixture; feeding the mixture into an extruder; introducing and mixing a blowing agent; subject the mixture to high shear forces and extruding the mixture to produce a plastic/wood fiber composite foamed structure. The filler has a degradation temperature and an active volatization temperature. During the pre-drying step the temperature is maintained below the degradation temperature. During the mixing step the mixing temperature is maintained below the active volatilizing temperature. During the introducing and mixing step a blowing agent is introduced into the plastic/wood fiber mixture and is mixed therewith to produce a plastic/wood fiber/gas mixture. During the subjecting step the plastic/wood fiber/gas mixture is subjected to high shear forces in the presence of high pressures and the temperature is maintained below an active volatilizing temperature.

Abstract: The object of the present invention is to produce plural resin forms at one time with stability by dividing resin starting material continuously in a short time and with the same residence time into plural parts having desired amounts of resin and discharging to solidify them. The producing method is comprising, providing a liquid partition on the die land and/or die lip of a coat hanger shaped die along with the flow direction, introducing starting material for resin into said coat hanger shaped die and dividing it into plural parts and then discharging and solidifying on the adherent.

Abstract: Open celled membranes from thermoplastic polymers are prepared from foamed polymer melts by extrusion through a die.

Abstract: A porous hollow fiber membrane having a particle cutoff within the range of 1 to 10 ?m and a pure water permeate flow equal to or higher than 30,000 L/m2/hr/100 kPa.

Abstract: An apparatus and methods for mixing and injecting a foam core within an extruded shell preferably of plastic downstream from an extrusion die to produce a uniform building product. The preferred apparatus includes a mixing head injector for mixing a binary system foam. The mixing head injector incorporates pressurized gas injection for homogenization of the foam core. A preferred method employs the mixing head injector and a novel calibrator thereby allowing injection of a foam core within the shell as it passes through a calibrator to reliably produce a uniform building product. An alternative method employs a second extruder. Alternative methods employ a mounting fixture downstream of a first calibrator.

Abstract: In order to achieve an economical and trouble-free continuous extrusion of plastic hollow profiles having at least one hollow chamber that is filled with foam, the profile tool of an extrusion device is configured in the shape of a pistol. The profile tool comprises a pistol shaft (102) with a melt feed channel (166), connected to the melt discharge opening of the extruder (300) and which opens into a melt radial distributor channel (164) that surrounds the lance guide channel (150). The profile tool is also equipped with a pistol barrel (101) comprising a melt ring channel (162), which extends from the melt radial distributor channel (164) to the profile nozzle (160) and comprising a lance guide channel (150), which extends in a continuous manner from a lance inlet (152) to the profile nozzle (160).