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Production of continuous or running length

Subclass of:

264 - Plastic and nonmetallic article shaping or treating: processes

264500000 - DIRECT APPLICATION OF FLUID PRESSURE DIFFERENTIAL TO PERMANENTLY SHAPE, DISTORT, OR SUSTAIN WORK

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Class / Patent application numberDescriptionNumber of patent applications / Date published
264555000 Production of continuous or running length 45
20090140470Article of Footwear of Nonwoven Material and Method of Manufacturing Same - A method of forming a portion of an article of footwear includes the steps of providing a last having an exterior surface, extruding a plurality of polymeric fibers, projecting a stream of the extruded polymeric fibers onto the last to form a mat having the shape of the exterior of the last, and subjecting the mat to heat and pressure in a mold.06-04-2009
20090267272APPARATUS FOR SUPPLYING SYNTHETIC RESINS - An apparatus for supplying synthetic resins applicable to a metal mold wheel that rotates at a high speed. A cutter of a cutter unit and a holding fitting are attached to an air cylinder, so that the cutter unit can be advanced and retreated in the radial direction of rotation. When the molten resin is stably blown out from an extrusion nozzle, the air cylinder is expanded to move the cutter to an advanced position to cut the molten resin. When the molten resin is unstably blown out from the extruder, the air cylinder is contracted and the cutter is arranged at a retreated position so will not to come in contact with the molten resin. Despite the cutter wheel continues to rotate, the molten resin is not contacted by the cutters.10-29-2009
20100283191PROCESS FOR PRODUCING RETARDATION FILM OF THERMOPLASTIC RESIN - The process has a step of longitudinally stretching a thermoplastic resin film F by heating and floating the thermoplastic resin film F by blowing hot wind supplied from slit 11-11-2010
20110068516PROCESS AND APPARATUS FOR PRODUCING A SHRINKABLE PLASTIC FILM BY ENVIRONMENT-FRIENDLY RESIN MATERIAL - An improved process and apparatus for producing a shrinkable plastic film by environment-friendly resin material. The process comprises blow-molding the environment-friendly resin material of OPS, PET or PLA to form a tubular plastic film by a blow-molding machine, and collapsing the tubular plastic film to a flattened plastic film by a roller, then passing through the first forcibly cooling device, the plastic film being transferred to the second heating device which is filled with heating water, and the third auxiliary heating device on the top of a transfer roller serving to heat the soften plastic film further, then the reheated plastic film being transferred to the fourth rapid-cooling device and the tube is cooled rapidly, then the tubular plastic film with improved toughness is achieved. The said auxiliary heating device with a wall around it is positioned on the top of the transfer roller, and the wall separates the water into two parts. In the wall, plural heaters are positioned to improve the water temperature in the wall, so when the flattened plastic film passes through the region in the wall, it will be reheated and the working temperature may be constant, and the flattened plastic film will be expanded easily by blowing.03-24-2011
20110248430REMOTE COOL DOWN OF A PURIFIED DIRECTIONALLY SOLIDIFIED MATERIAL FROM AN OPEN BOTTOM COLD CRUCIBLE INDUCTION FURNACE - Solid or semi-solid feedstock is melted in an open bottom electric induction cold crucible furnace. Directionally solidified multi-crystalline solid purified material continuously exits the bottom of the furnace and may optionally pass through a thermal conditioning chamber before being gravity fed into a transport mold where an ingot of the purified multi-crystalline solid material is transported to a remote holding area after the transport mold is filled with the multi-crystalline material and cut from the continuous supply of material. Cool down of the ingot is accomplished remote from the open bottom of the cold crucible furnace.10-13-2011
20110285065MELT SPINNING METHOD AND APPARATUS - A melt spinning apparatus includes an apparatus body, a nozzle configured to extrude melted resin in the apparatus body, and a barrel having an air discharge passage arranged around this nozzle to discharge hot air. The discharge passage includes a sloped passage and a parallel passage that extends along the nozzle. At an intersection of imaginary lines extending along the centerlines of the sloped passage, an imaginary merging section is defined. An open end of the nozzle is positioned on the downstream side of the imaginary merging section of the hot air blown diagonally forward toward a periphery of the nozzle. To manufacture a sheet of a nonwoven fabric, the melted resin is discharged from the nozzle and then the hot air swirling diagonally forward is blown toward the periphery of the nozzle. This causes the melted resin to be formed into spiral fibers. Those fibers are blown onto the belt of a conveyor belt apparatus to manufacture a nonwoven fabric sheet.11-24-2011
20120126466RESIN EXTRUSION DIE AND EXTRUSION METHOD USING THE SAME - This invention provides a resin extrusion die capable of suppressing die drool generation and contamination of a resin molded form with generated die drool serving as foreign substances. The resin extrusion die includes a cap through which a molten resin is extruded, and a cover that includes a gas outlet for forming a gap around the tip of a discharge nozzle and covers at least part of the cap so as to form a space between the cap and the gas outlet. The gas outlet forms, around the tip of the discharge nozzle, the gap whose maximum width/minimum width ranges from 1.05 to 2.0, thereby changing a gas supplied into the cover and flowing out of the gap to a turbulent flow.05-24-2012
20120217682Methods of Improving the Physical Properties of Polyolefin Films - Methods of improving the physical properties of a polyolefin film that include providing interpolymer resin particles, forming a blend composition by blending from about 0.1 to about 25% by weight based on the weight of the blend composition of interpolymer resin particles into a second polyolefin; and forming a film from the blend composition. The interpolymer resin particles are made up a styrenic polymer intercalated within a first polyolefin. The first polyolefin is present at from about 20% to about 80% by weight based on the weight of the particles and the styrenic polymer is present at from about 20% to about 80% by weight based on the weight of the particles.08-30-2012
20120256357USE OF COANDA EFFECT DEVICES TO PRODUCE MELTBLOWN WEBS WITH IMPROVED SIDE-TO-SIDE UNIFORMITY - An apparatus for producing meltblown webs includes a meltblowing die having a plurality of filament outlets, a collector for receiving filaments of polymeric material expelled from the filament outlets, and a first Coanda effect device positioned adjacent to the path of the filaments adjacent to the last filament outlet at an end of the meltblowing die. Methods of forming meltblown webs using such an apparatus are also disclosed.10-11-2012
20130001838CHARCOAL-CONTAINING PLASTIC PACKING MATERIAL AND METHOD FOR MANUFACTURING SAME - Disclosed are a charcoal-containing plastic packing material and a method for manufacturing the same. The present invention provides a plastic packing material which resolves the problems caused by the deficiency of compatibility between charcoal and resin such as deficiencies in mechanical properties, an aggregation phenomenon, foreign body sensation, defective forms, and poor quality, and which not only exhibits high-level general qualities, but which also, as a result of containing charcoal, has functional properties such as suppressing putrefactive bacteria, absorbing polluted particles and smells, radiating far-infrared rays and anions, and preventing the generation of static electricity. Also, the present invention provides a method for manufacturing a plastic packing material, in which the particle size, the amount used for resin, and the particle size uniformity of charcoal powder to be mixed with resin are adjusted according to the thickness of the plastic packing material to be formed.01-03-2013
20130020744PROCESSING AID FOR THERMOPLASTIC POLYURETHANES - Processing aid comprising a) 10-50% by weight of hydrophobized, at least partially aggregated, metal oxide particles b) 20-75% by weight of one or more thermoplastic polyurethanes, c) 0.5-50 by weight of one or more prepolymers comprising isocyanate groups the sum of the constituents a) to c) amounting to at least 80% by weight, based on the processing aid.01-24-2013
20130062819APPARATUS AND METHODS FOR PRODUCING A CERAMIC GREEN BODY - An apparatus for producing a green body of ceramic-forming material can comprise a support device including at least one air bearing including a support surface with a plurality of apertures. In one example, the support surface is configured to circumscribe greater than 180° of a support area for the green body. In another example, the plurality of apertures include at least a quantity of apertures oriented with a fluid emitting axis extending at an oblique angle with respect to an extrusion axis. In still another example, the air bearing is adjustable. Methods for producing a green body also provide an air cushion between a support surface and the green body.03-14-2013
20140175711MICROVALVE USING SURFACE TENSION, MICROFLUIDIC CHIP COMPRISING SAME, AND METHOD FOR MANUFACTURING SAME - The present disclosure relates to a microvalve using surface tension, a microfluidic chip including same and a method for manufacturing same. More particularly, the present disclosure relates to a microvalve using surface tension, a microfluidic chip including same and a method for manufacturing same, wherein the microvalve can be manufactured through a simple process and the microvalve and a coaxial sample channel are not separated, and thus the microvalve may be easily installed not only in an existing quadrangular channel but also in the coaxial channel so as to control the flow and amount of a microfluid (sample).06-26-2014
20140265059APPARATUS FOR MANUFACTURING AND PROCESSING FILMS HAVING STRIPS OF INCREASED THICKNESS - A device for producing film includes a die defining a die outlet through which molten polymer is extruded. The polymer is suitable for producing one of a pre-stretch film and a conventional stretch film. The device includes a film producing device spaced apart from the die. One or more coolant supplies are positioned proximate the film producing device for directing a stream of coolant onto the molten polymer positioned on the film producing device and/or between the die and film producing device, for producing film having strips of increased thickness.09-18-2014
20140374967Soft Polypropylene-Based Nonwovens - Disclosed herein is a nonwoven fabric comprising within the range of from 1 to 49 wt %, by weight of the fabric, of a reactor grade propylene-α-olefin copolymer possessing; within the range of from 5 to 35 wt %, by weight of the copolymer, of units derived from one or more of ethylene and/or C12-25-2014
20140374968Extensible Polypropylene-Based Nonwovens - Disclosed herein is a nonwoven fabric comprising within the range of from 50 to 99 wt %, by weight of the composition, of a reactor grade propylene-α-olefin copolymer possessing within the range of from 5 to 35 wt %, by weight of the copolymer, of units derived from one or more of ethylene and/or C12-25-2014
20150076749METHOD FOR THE CONTINUOUS PRODUCTION OF AN ENDLESS STRING OF POLYURETHANE REACTIVE PLASTIC MATERIAL - A method for continuous production of an endless string of polyurethane reactive plastic material including, a) conveying the reactive components to a mixer in a metered manner, b) mixing the reactive components into a reactive mixture, c) subsequently discharging the reactive mixture and d) coating a first sheet section made from a plane, flexible material which is conveyed continuously in a transporting direction with the reactive mixture. Further including: e) guiding the first sheet section across a guiding element, which has a concave section and a flat section which follows the concave section in the transporting direction; f) feeding two lateral sheet sections to the first sheet section, wherein the feeding occurs into the two lateral end sections of the first sheet section; g) merging the two lateral sheet sections and the first sheet section so that a bowl-shaped structure is formed for reception of the reactive mixture.03-19-2015
20150375438BLOWN FILM WITH INTEGRAL PROFILES - A system and method for extruding film with a thickened profile section. In some embodiments, the film forms bags with integral zipper profiles. Plastic film is extruded to form a tube. During extrusion, cooling jets direct cooling gases toward the thickened profile section below the frost line to preferentially cool the thickened profile sections. In some embodiments, warm air is drawn out of the tube interior through hot air intakes located below the frost line. In certain embodiments, the film is extruded at a higher rate of speed than conventional processes. Likewise, the extruded film tube is expanded at a lower blow up ratio than conventional processes in certain preferred embodiments. In some embodiments, the extrusion system includes an air flow surface oriented relative to the film tube to define an air flow gap of substantially uniform thickness.12-31-2015
20160183929SPINNERET FOR MANUFACTURE OF MELT BLOWN NONWOVEN FABRIC - A bimodal spinneret system including the bimodal spinneret and method for making a surgical buttress having improved characteristics are disclosed. The bimodal spinneret includes at least a distribution of hole diameters to create fibers with a more heterogeneous shear history and die swell. The system and method of using the bimodal spinneret creates a melt blown non-woven fiber mat that is cut into a surgical buttress having unique fabric properties such as differentiated load deflection behavior, flexural stiffness, polymer fiber alignment, fiber crystallinity and subsequent strength retention during in vitro degradation not attainable with unimodal spinneret hole diameters.06-30-2016
20170233894ULTRAFINE FIBER PRODUCTION METHOD AND PRODUCTION DEVICE08-17-2017
264556000 By casting on to a cooled roll 1
20090146346APPARATUS FOR MANUFACTURING THERMOPLASTIC RESIN FILM, AND METHOD FOR MANUFACTURING THERMOPLASTIC RESIN FILM - An apparatus for manufacturing a thermoplastic resin film includes a die which discharges a molten thermoplastic resin as a film, a cooling roll which is arranged so as to oppose to the discharge port of the die, and cools and solidifies the discharged film, and a variation reduction mechanism which reduces a variation of a wind speed in the vicinity of the surface of the film. The apparatus enables to provide a thermoplastic resin film which is suitable for an optical application, by controlling the thickness nonuniformity of the thermoplastic resin film in manufacturing the thermoplastic resin film by using a melt film-forming method.06-11-2009
264557000 Including liquid contact 5
20110272864Process and apparatus for molding continuous-fiber composite articles - A process and apparatus for multi-shot, liquid-resin-molding of continuous-fiber composite articles is disclosed. The process involves the step-wise fabrication of an article wherein continuity of the fibers is maintained between the multiple workpieces of the finished composite article.11-10-2011
20120200010Polyethylene and Process for Production Thereof - This invention relates to blown films produced from copolymer made by a process for polymerizing olefins in which the amount of trimethylaluminum in a methylalumoxane solution is adjusted to be from 1 to 25 mol %, prior to use as an activator, where the mol % trimethylaluminum is determined by 08-09-2012
264558000 Including internal liquid contact 1
264559000 With downward movement of workpiece 1
20090127750Process for making cellulose fibre, filaments or films - An improved process for the preparation of a cellulose solution for spinning of fibres, filaments or films therefrom comprising the steps of: a) activating cellulose in a mixture containing said cellulose, tertiary amine oxide solvent and water for a period sufficient to allow a swelling of the cellulose by introduction therein of water present in said mixtures, the temperature of said activation step and concentration of solvent being such that the solvent is not converted into its monohydrate state during the step of activation; b) the cellulose mixture being subjected to the steps of dissolution of cellulose in the solvent by heating for removal of water so as to convert the solvent into at least its monohydrate form so as to cause a dissolution.05-21-2009
264561000 Contact with liquid coagulant or reactive liquid 1
20100164148POLYMER MEMBRANE, METHOD FOR THE PRODUCTION AND USE THEREOF - The present invention relates to an acid-doped polymer membrane based on polyazoles. The acid-doped polymer membrane can be used in a variety of applications because of its excellent mechanical properties and is useful as polymer electrolyte membrane (PEM) in PEM fuel cells. A doped polymer membrane based on polyazoles is obtained by a process comprising the steps of: A) casting a film using a solution of polymers based on polyazoles in a polar, aprotic organic solvent; B) drying the film formed in step A) until it is self-supporting; C) treating the film obtained in step B) with a treatment liquid at a temperature in the range from room temperature to the boiling point of the treatment liquid; D) drying and/or dabbing the film treated according to step C) to remove the treatment liquid from step C); and E) doping the film treated according to step D) with a doping agent.07-01-2010
264562000 With immersion in liquid bath 1
20140367896EXTRUSION METHOD - A method is provided for producing solid material filaments or films from a fluid of the material, by extruding the fluid by one or more extrusion openings and by solidifying the material in a precipitation bath. The formed material is guided between the extrusion openings and the precipitation bath by a lateral gas flow. The gas flow is subdivided into a hot partial flow and a cold partial flow. The material is initially brought into contact with the hot partial flow and subsequently with the cold partial flow prior to it being introduced into the precipitation bath. A device is also provided for extruding and forming materials.12-18-2014
264563000 Producing a tubular product 19
20080308975Electrode-Supported Solid State Electrochemical Cell - A process for manufacturing a solid oxide fuel cell involves forming a tubular anode comprising an electrolyte substance and an oxide of an electrochemically active metallic substance without a distinct pore forming substance, sintering the tubular anode, forming an electrolyte onto the sintered anode, forming a cathode onto the electrolyte, and after forming the electrolyte and the cathode, reducing the oxide of the electrochemically active substance in the sintered anode to form pores in the anode.12-18-2008
20090045555Method for setting the sizes of blown film tubes as well as a blown film system with a control device for carrying out the method - The invention describes a method for setting the sizes of film tubes (02-19-2009
20090057962Apparatus For Inflating Tube Film For Manufacturing Packaging Material, And A Method For Inflating Tube Film With Such Apparatus - An apparatus for inflating film for manufacturing packaging material in situ, wherein the apparatus comprises an inflating unit, a film conveying provision, a sealing unit and a film receiving means for receiving a film roll, wherein the apparatus is a compact apparatus with a relatively small footprint and wherein the inflating unit, film conveying provision and the sealing unit are provided in a central unit on the apparatus and are operatively positioned with respect to a center of the film to be inflated and sealed viewed in a direction at right angles to a film conveying direction, wherein the film to be inflated is operatively engaged only in or near the center thereof by the central unit, for inflating the film from or from near the center, then sealing the film tight and conveying it, as well as a method for manufacturing packaging material.03-05-2009
20090152776Core/Shell Polymer and Fluoropolymer Blending Blown Film Process - A process for extruding a partially crystalline melt-fabricable perfluoropolymer. The process comprises blowing film from a perfluoropolymer having polytetrafluoroethylene sub-micrometer particles dispersed therein. The perfluoropolymer composition is a core/shell polymer or a dispersion blend or a melt-mixed polymer.06-18-2009
20090273125MANUFACTURING APPARATUS AND MANUFACTURING METHOD FOR TUBULAR RESIN FILM - A manufacturing apparatus and manufacturing method are provided for manufacturing stably from a thermoplastic resin a resin film product having a small and uniform thickness and smooth surfaces, which has been impossible with a conventional tube extruding method or and blown film extrusion method. It comprises a heating extruder (11-05-2009
20090309271Process and apparatus for molding continuous-fiber composite articles - A process and apparatus for multi-shot, liquid-resin-molding of continuous-fiber composite articles is disclosed. The process involves the step-wise fabrication of an article wherein continuity of the fibers is maintained between the multiple workpieces of the finished composite article.12-17-2009
20100252965Fabricating An Implantable Medical Device From An Amorphous Or Very Low Crystallinity Polymer Construct - Methods of fabricating a polymeric implantable device with improved fracture toughness through annealing, nucleating agents, or both are disclosed herein. A polymeric construct that is completely amorphous or that has a very low crystallinity is annealed with no or substantially no crystal growth to increase nucleation density. Alternatively, the polymer construct includes nucleating agent. The crystallinity of the polymer construct is increased with a high nucleation density through an increase in temperature, deformation, or both. An implantable medical device, such as a stent, can be fabricated from the polymer construct after the increase in crystallinity.10-07-2010
20100301526Device and Method for Cooling an Extruded Plastic Profile - The invention relates to a device for extruding plastic profiles, preferably plastic tubes, to which plasticized bulk plastic can be fed, and comprising a plurality of ring channels (12-02-2010
20110001276Process for the preparation of film sheets - A device and a process for the preparation of sheets (01-06-2011
264564000 Including deformation by application of fluid pressure 10
20120181732TUBING EXPANSION - A tubing expansion device is adapted to be advanced axially, without rotation, through tubing to be expanded. The device comprises a body and a plurality of expansion members mounted on the body, the expansion members being independently radially movable. The expansion members may be rotatable, or may be non-rotating.07-19-2012
20150061198PROCESS FOR FORMING FILM - A method of making and using a stretchable film includes an extruding operation where molten plastics materials are extruded into a tube and a blowing operation in which the tube is blown to expand a diameter of the tube and form a blown-film tube. The blown-film tube is slit to form a film sheet that may be deformed elastically in a machine direction.03-05-2015
20150069671DEVICE AND METHOD FOR GUIDING A BLOWN FILM - The invention relates to a guiding device for guiding a blown film between a film blowing die and a take-off roller device, comprising at least two lateral guides located opposite one another for laterally guiding the blown film, wherein at least one lateral guide is provided with a first guide segment and a second guide segment, which are connected to one another in an articulated manner. At least one lever kinematics is provided, which is in drive connection with a drive device, and which is interconnected with the two guide segments such that when the drive device is actuated by way of the lever kinematics, the angles of attack (αa, αe) of the two guide segments to the conveyance direction (F) of the blown film can be varied.03-12-2015
264565000 With internal gas bearing or mandrel 4
20080203624Tubing Manufacture - Apparatus for vulcanising and corrugating rubber tubing includes a mold with a corrugated inner surface. The mold is heated by electrical resistance heating elements. A length of uncured straight tubing is placed in the mold and its external surface is forced into contact with the corrugated mold surface by the combination of a positive gas pressure within the tubing and a negative gas pressure outside the tubing. The tubing is maintained in the heated mold for long enough for it to be vulcanised and take the internal shape of the mold.08-28-2008
20090014924BLOWN FILM EXTRUSION PLANT - In a blown film extrusion plant comprising a blow head and an air cooling ring, between the blow head and the air cooling ring at least one cooling device should be provided.01-15-2009
20110079941Method of fabricating an implantable medical device with biaxially oriented polymers - Methods and systems for manufacturing an implantable medical device, such as a stent, from a tube with desirable mechanical properties, such as improved circumferential strength and rigidity, are described herein. Improved circumferential strength and rigidity may be obtained by inducing molecular orientation in materials for use in manufacturing an implantable medical device. Some embodiments may include inducing molecular orientation by expansion of a molten annular polymer film. Other embodiments may include inducing circumferential molecular orientation by inducing circumferential flow in a molten polymer. In certain embodiments, circumferential orientation may be induced by expansion of a polymer tube. Further embodiments may include manufacturing an implantable medical device from a biaxially oriented planar polymer film.04-07-2011
20120256358BLOWN FILM EXTRUSION PLANT - In a blown film extrusion plant comprising a blow head and an air cooling ring, between the blow head and the air cooling ring at least one cooling device should be provided.10-11-2012
264566000 With application of external pressure or vacuum 3
20080272523Manufacturing apparatus and manufacturing method for tubular resin film - A manufacturing apparatus and manufacturing method are provided for manufacturing stably from a thermoplastic resin a resin film product having a small and uniform thickness and smooth surfaces, which has been impossible with a conventional tube extruding method or and blown film extrusion method. It comprises a heating extruder (11-06-2008
20110024954MODIFIED POLY(HYDROXYALKANOIC ACID) COMPOSITION - Disclosed is a process for preparing injection stretch blow molded containers from poly(hydroxyalkanoic acid) compositions comprising a poly(hydroxyalkanoic acid), an ethylene ester copolymer, and a nucleator.02-03-2011
264568000 Including use of vacuum 1
20150290868MOLDING APPARATUS AND MOLDING METHOD - A molding apparatus that adsorbs thermoplastic resin extruded in a sheet form from an extruding machine, onto a cavity of a mold, and shapes the thermoplastic resin into a shape according to the cavity is provided. The molding apparatus may include a frame that is positioned on a periphery of the mold and is movable relative to the mold, wherein a suction part for suctioning the thermoplastic resin is provided in a contact surface of the frame to contact the thermoplastic resin, and the suction part is provided in a linear shape along with a longitudinal direction of the frame positioned on the periphery of the mold.10-15-2015

Patent applications in class Production of continuous or running length

Patent applications in all subclasses Production of continuous or running length

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