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Melt co-extrusion (e.g., two layers, etc.)

Subclass of:

264 - Plastic and nonmetallic article shaping or treating: processes

264165000 - FORMING CONTINUOUS OR INDEFINITE LENGTH WORK

264171100 - Layered, stratified traversely of length, or multiphase macrostructure containing material (e.g., conjugate, composite, islands-in-sea, core-sheath, etc.)

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
264173160 Melt co-extrusion (e.g., two layers, etc.) 23
20090121378Heat fromad TPV co-extruded Header trim - A method is provided for manufacturing an upper reveal that conforms to a curved portion of a window opening of a motor vehicle door frame. The upper reveal is formed from TPV and a carrier. The method includes the steps of: co-extruding the TPV with the carrier; curing the TPV to form the upper reveal; heating the upper reveal to a temperature greater than a heat deformation temperature of the TPV; and bending the upper reveal to conform to the curved portion of the window opening of the motor vehicle door frame.05-14-2009
20090200696Method for the productio of integrated sealing elements on plastic articles by overmoulding with silicone films - Method for the production of sealing elements on plastics articles. Said method includes the step of producing a film of silicone rubber on the sealing surface of the article. Advantageously, this film is formed by co-moulding or co-extrusion with the plastics article itself. The thickness of the said film may vary from a few tenths of a millimetre to a few millimetres. In the case of cylindrical elements, such as the pistons of the delivery cocks of ice cream machines, this film preferably covers only the side wall or the sealing part of the side wall of the cylindrical element, while in the case of flat elements, this film covers only the sealing surface of this element.08-13-2009
20090212457System and method for making sheets, films, and objects directly from polymerization processes - A system for making sheets, films, and objects including a reactor-dryer for reacting at least one monomer to produce a polymer melt; a flash melter in communication with the reactor-dryer for heating the polymer melt received from the reactor-dryer; a flash tank in communication with the flash melter for removing volatile compounds from the polymer melt; and a control loop in communication with the flash tank for controlling the pressure of the polymer melt from the flash tank to a die forming unit. Methods of making sheets, films, and objects is further included.08-27-2009
20090230584Method for extruding foam plastic frame members - Elongated frame members are provided having rigid framed plastic cores with smooth hard outer skins and separately coextruded plastic coatings covering separately selected areas of the skin. The members may also be hollow. The invention further involves the method and tooling for making same.09-17-2009
20120043691MULTILAYERED POLYIMIDE FILM - A multilayered polyimide film including a polyimide layer (b), and a pigment-containing polyimide layer (a) stacked on one surface or both surfaces of the polyimide layer (b), wherein the polyimide layer (b) is formed of a polyimide including an aromatic tetracarboxylic acid unit containing a 3,3′,4,4′-biphenyltetracarboxylic acid unit in an amount of 70 to 100 mol %, and an aromatic diamine unit containing a p-phenylenediamine unit in an amount of 70 to 100 mol %.02-23-2012
20120273991APPARATUS AND METHOD FOR PREPARING LAMINATED NANO-COMPOSITE MATERIAL - Apparatus and method for preparing laminated nano-composite material. The apparatus comprising: a plasticizing-and-feeding device assembly consisting n plasticizing-and-feeding device; a current collector having n inlets, one outlet and a conjunction runner; k laminated composite generators connected in series, wherein generator comprises one melt inlet channel, m branch laminated runners and one melt outlet channel, while in vicinity of each melt inlet channel is provided with m distributary openings, and each branch laminated runner can make each equal composite melt flown out from each distributary opening rotates approximately 90 degrees and extends m times in width as it flows forward, and then joins together and forms laminated structure melt, and the laminated structure melt which joins together at the melt outlet channel of the last laminated composite generator has n×m11-01-2012
20130127086CONTROLLING CROSS-WEB LAYER PROFILE OF A MULTILAYER POLYMER FILM - A method and an apparatus for forming a plurality of polymer layers via a plurality of slots (05-23-2013
20130140732Die, System, and Method for Coextruding A Plurality Of Fluid Layers - A die for coextruding a plurality of fluid layers generally includes a primary forming stem, one or more distribution plates, and a microlayer assembly. The microlayer assembly includes a microlayer forming stem and a plurality of microlayer distribution plates.06-06-2013
20130256943METHOD FOR PRODUCING THREE-LAYER CO-EXTRUDED POLYIMIDE FILM - In the present invention, (i) a polyamic acid solution for forming a thermoplastic polyimide layer to be in no contact with a support contains no chemical dehydrating agent or imidization catalyst, (ii) a polyamic acid solution for forming a thermoplastic polyimide layer to be in contact with the support contains an imidization catalyst, and (iii) a polyamic acid solution for forming a non-thermoplastic polyimide layer contains a chemical dehydrating agent and an imidization catalyst. This arrangement eliminates a property difference between the thermoplastic polyimide layers.10-03-2013
20140124973Polyester Film Having Latent Shrink Properties and Process for Producing Same - A film layer is disclosed that is capable of shrinking when subjected to energy, such as heat. The film layer, for instance, can be formed and then stretched in one or two directions at a relatively low temperature. In particular, the film is stretched while the film layer is at a temperature near the glass transition temperature of the polymer used to form the film. Drawing the film at a relatively low temperature has been found to improve the shrink properties of the film. In one embodiment, the film layer is comprised of a non-modified polyester, such as polyethylene terephthalate. For example, the polyethylene terephthalate can be made by reacting terephthalic acid with ethylene glycol or polyethylene glycol.05-08-2014
20140327175Stretch Film Using a Multi-Manifold Die - A die for forming a stretch film includes at least: a primary passage for receiving a primary stream, the primary passage having a length extending from a die inlet opening to a die outlet opening; and a flow assembly for supplying a secondary stream to the primary passage at a secondary passage opening. A method for forming a stretch film includes: introducing a primary stream to a primary passage of a die at a die inlet opening, the primary passage having a length extending from the die inlet opening to a die outlet opening; supplying a secondary stream to the primary passage at a secondary passage opening; combining the primary stream and the secondary stream to create a combined stream; passing the combined stream through said die outlet opening; and passing the combined stream from the die outlet opening to a casting unit, thereby forming a film web.11-06-2014
20150353691USE OF RECYCLED PACKAGING IN POLYMER COMPOSITE PRODUCTS - A polymer composite and its method of manufacture using a recycled multilayer material. An example of the recycled multilayer material is comprised of a polyethylene/polyethylene terephthalate/aluminum film that may be extruded with organic filler to obtain desirable performance in wood-substitute products such as deck boards, railing, fencing, pergolas, residential cladding/siding, sheet products, and other applications.12-10-2015
20160031145Coextrusion Feedblock, Coextrusion Profiling Insert Assembly, and Methods of Operation - The invention provides a coextrusion feedblock having a flow adjuster, a viscosity compensation device, an actuator, a central extrusion conduit, and a coextrusion conduit. The invention also provides a coextrusion profiling insert assembly constructed to be mounted in a coextrusion feedblock. The insert assembly has a flow adjuster, a viscosity compensation device, and an actuator. The insert assembly when mounted in the feedblock has a coextrusion conduit extending between the flow adjuster and the viscosity compensation device. The actuator is adjustable to apply force to bend the viscosity compensation device and thereby adjust a gap height of the coextrusion conduit. Also provided is a method of operating a feedblock having a viscosity compensation device comprising a flex region, a central extrusion conduit, and a coextrusion conduit. Force is applied to bend the flex region of the viscosity compensation device and thereby adjust a gap height of the coextrusion conduit.02-04-2016
20160114517SEGMENTED FILMS WITH HIGH STRENGTH SEAMS - Unitary films and laminates thereof are provided having at least first and second film segments which extend adjacent one another and are permanently joined together. The first and second film segments are joined at an interface, wherein at the interface a tip of the second segment overlaps the first segment in the cross-direction of the film. The film has a thickness “T” at the tip of the second segment, and the second segment has a thickness “t” at a distance T in the cross direction from the tip of the second segment. The ratio T/t is suitably greater than about 3. The unitary films and laminates thereof are well suited, for example, for use as outer covers in personal care articles.04-28-2016
264173170 Having particular noncircular cross-section (e.g., T-configured, etc.) 5
20080272513Process for the Coextrusion of Melt Streams of Different Composition - The invention relates to a method for coextrusion of at least two molten material flows having different composition by separating the molten material into at least two molten material flows, admixing additives in at least one of the molten material flows and bringing together the molten material flows by coextrusion in one or more extrusion tools. The method is particularly suitable for the production of PVB films with a color strip for composite glazings.11-06-2008
20090174108Rigid plastic glass run channel - A process for the production of a glass run channel is provided wherein the glass run channel has a S-shaped core of a polymeric material, onto which glass and/or frame sealing components are co-extruded. Preferably, a slip agent coating is applied shortly after the sealing components are added so that a completely polymeric glass run channel is produced in a single operation. The polymeric glass run channel is lighter, less expensive and more easily recycled than the prior art glass run channels.07-09-2009
20110227247POLYMER ARTICLES, AND METHODS AND DIES FOR MAKING THE SAME - Provided are dies having a first section for orienting material being pressed through the die and a second section for shaping the oriented material into a desired form. In an embodiment, the surface area for shaping the oriented material into a desired form is limited. Also provided are polymer articles and processes for making the same. In an embodiment, the processes employ the dies.09-22-2011
20130127087Process for the Coextrusion of Melt Streams of Different Composition - The invention relates to a method for coextrusion of at least two molten material flows having different composition by separating the molten material into at least two molten material flows, admixing additives in at least one of the molten material flows and bringing together the molten material flows by coextrusion in one or more extrusion tools. The method is particularly suitable for the production of PVB films with a color strip for composite glazings.05-23-2013
20150343690Multi-Manifold Extrusion Die with Deckle System and Method of Using Same - A multi-manifold extrusion die having a fully independent internal deckle system. The die can selectively produce a composite extrudate having a full-width arrangement, an encapsulation arrangement, or a naked-edge arrangement. Methods are also provided for producing a composite extrudate having a full-width arrangement, an encapsulation arrangement, or a naked-edge arrangement.12-03-2015
264173190 Polyamide (e.g., nylon, etc.) or addition polymer of at least one monoethylenically unsaturated monomer (e.g., polyethylene, polypropylene, polystyrene, etc.) containing layer 4
20090174109Composite Material Containing Wood and Melamine Resin - The invention relates to composite material containing a proportion of wood and a proportion of crosslinked melamine resins, which is characterized in that the crosslinked melamine resins are formed from melamine resins that are, in essence, linearly synthesized and have a shear-dependent viscosity. The invention also relates to a method for producing the composite materials and to the use thereof.07-09-2009
20140061967USE OF RECYCLED PACKAGING IN POLYMER COMPOSITE PRODUCTS - A polymer composite and its method of manufacture using a recycled multilayer material. An example of the recycled multilayer material is comprised of a polyethylene/polyethylene terephthalate/aluminum film that may be extruded with organic filler to obtain desirable performance in wood-substitute products such as deck boards, railing, fencing, pergolas, residential cladding/siding, sheet products, and other applications.03-06-2014
20140159275CONCENTRIC CO-EXTRUSION DIE AND A METHOD OF EXTRUDING A MULTILAYER THERMOPLASTIC FILM - A large concentric co-extrusion die (06-12-2014
20150028516Electrode Separator - A multi-functional battery separator comprises two or more active separator layers deposited from different polymer solutions to form a multilayered unitary structure comprising a free-standing film, a multiplex film on one side of a porous substrate, or separate films or multiplex films on opposite sides of a porous substrate. In a preferred embodiment, the cascade coating method is used to simultaneously deposit the active separator layers wet so that the physical, electrical and morphological changes associated with the polymer drying out process are avoided or minimized. The multi-functional separator is inexpensive to fabricate, exhibits enhanced ionic conductivity and ionic barrier properties, and eliminates gaps between individual layers in a separator stack that can contribute to battery failure.01-29-2015
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