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| Number | Title | Issue Date |
| 7264764 | Method of manufacturing branching pipe The manufacturing method of the invention manufactures a fuel filler pipe (branching pipe), where a breather pipe is branched off from a filler pipe main body. The manufacturing method extrudes a first extruded tubular member and a second extruded tubular member, co... | 09/04/2007 |
| 7220801 | Metallocene-produced very low density polyethylenes or linear low density polyethylenes as impact modifiers In one embodiment, the present invention is directed to an article, such as a blow-molded bottle, formed from a polymer blend composition. In one aspect, the article is formed by blow-molding techniques. In one aspect, the article is a blow-molded container having a... | 05/22/2007 |
| 7213630 | Method and apparatus for producing an RF cured hose, and the hose so produced An apparatus for making a hose including a weaving machine and a liner feeder for forming the hose by weaving a jacket about a liner as the liner is being fed into the weaving machine, where the liner is provided with an adhesive layer on an outer surface, the adhes... | 05/08/2007 |
| 7101629 | Polyethylene films A film comprising a polyethylene composition, the polyethylene composition in one embodiment comprising a high molecular weight component having a weight average molecular weight of greater than 50,000 amu and a low molecular weight component having a weight average... | 09/05/2006 |
| 7090927 | Polyethylene films A film comprising a polyethylene composition, the polyethylene composition in one embodiment comprising a high molecular weight component having a weight average molecular weight of greater than 50,000 amu and a low molecular weight component having a weight average... | 08/15/2006 |
| 7045235 | Fuel cell system including air flow control Fuel cell assemblies including a fuel cell, a heat exchanger, and apparatus that individually controls the respective amounts of oxidant flowing to the fuel cell and to the heat exchanger. ... | 05/16/2006 |
| 6926829 | Apparatus and method for separating fluids through a membrane Apparatus for contacting first and second fluids at elevated pressures with a membrane such that one or more components of one of the fluids passes through the membrane into the other fluid, comprising a housing e.g. a pressure vessel (4), and a membrane modu... | 08/09/2005 |
| 6926853 | Continuous impregnation of long fibers with resin for manufacturing elongate composite elements An apparatus for manufacturing an elongate composite element in undefined lengths, the composite element containing reinforcement fibers embedded in a matrix based on a composition containing a curable resin, including a vacuum chamber, rigid-walled inlet tubing, an... | 08/09/2005 |
| 6905568 | Process for minimizing haze of extruded clear blends containing styrene/butadiene polymer and product thereof A process for reducing the haze of extrusions of clear polymeric blends containing styrene-butadiene copolymer and a polymer immiscible therewith. An assembly of extrusion layers in which a layer of clear polymeric blends containing styrene/butadiene copolymer and a... | 06/14/2005 |
| 6521169 | Process for the production of cellulose shaped bodies, bodies produced by this process and the use thereof Process for the production of cellulose shaped bodies through the precipitation of a cellulose solution containing cellulose dissolved in an amine oxide/water system in a precipitation bath, wherein the solution contains additional cellulose fibers.... | 02/18/2003 |
| 6478992 | Extrusion molding method for a thin tube An extrusion molding method including plasticizing and kneading a raw material (1), composed of a synthetic resin material having high heat-resistance and strength, extruding the material from a molding die (3) to form a tubular body (51), passing the tub... | 11/12/2002 |
| 6368545 | High clarity polyolefin multilayer blown coextruded film At least two techniques can be used separately or together to achieve higher clarity in multilayer blown coextruded films. In a first technique, the core layer is extruded at a higher temperature than the skin layer or layers. In the second technique, the... | 04/09/2002 |
| 6296804 | Biaxial stretching of plastic tubes A continuous process and apparatus for producing oriented plastic tube comprising the steps of extrusion, temperature conditioning, diametrical expansion and cooling, characterized by the step of inducing axial draw of the tube between first and second ha... | 10/02/2001 |
| 6153132 | Control method for the manufacture of oriented plastic tubes A method of expanding a tube of plastics material in which a longitudinally travelling tube is progressively diametrically expanded in internal fluid pressure in an expansion zone between an upstream plug and an expandable downstream plug. Expansion of th... | 11/28/2000 |
| 6146561 | Process for the prevention of socalled fish eyes in plastic films manufactured according to the casting process or according to the blown film process To prevent socalled fish eyes or to reduce the number of fish eyes per unit of area in plastic films, manufactured according to the casting process or according to the blown film process, the number of fish eyes per unit of area is measured in the tubular... | 11/14/2000 |
| 6110573 | Highly clean plastic film or sheet and process for its production A plastic film or sheet, wherein upon immersing a test piece of the plastic film or sheet in ultrapure water, extracting pure water from near the surface of the test piece and evaluating the cleanliness of a resulting bag based on the concentration (numbe... | 08/29/2000 |
| 6047756 | System for forming a braided hollow container with plugged ends In order to reduce the weight and cost of LPG pressure-resistant containers, thermo-plastic resin is used in the continuous formation of a hollow container wherein the outer surface of a hollow continuous liner is continuously braided with multiple yarns.... | 04/11/2000 |
| 6033618 | Process and apparatus for producing a seamless cellulose-based tubular film by extrusion A seamless cellulose-based tubular film is produced by extrusion of an aqueous cellulose-N-methylmorpholine N-oxide solution.... | 03/07/2000 |
| 6022445 | Method and apparatus for removal of biopolymer constructs from support structures Method and apparatus are disclosed for removing biopolymer constructs from support structures used to impart a selected shape to the biopolymer. The biopolymer construct and the support structure are in intimate at an interface and adhere to each other. T... | 02/08/2000 |
| 6007760 | Method of producing inflation film, apparatus therefor and molded articles thereof A method of producing an inflation film which includes the steps of melting an ultra-high-molecular-weight polyolefin in an extruder, extruding the molten polyolefin from a screw die, and blowing a gas into a molten tubular film formed by extrusion. An ap... | 12/28/1999 |
| 5942326 | Shrink film with good ink adhesion A film, having two major surfaces, includes an outer layer including a copolymer of ethylene and a C3 to C10 alpha olefin, wherein at least one surface has a silicone coating of between 0.1 and 1.2 milligrams per square feet. Multila... | 08/24/1999 |
| 5942256 | Bubble stabilizer and sizing cage with wear strips An external stabilizer employed in a plastic film blowing apparatus incorporates one or more extruded members that carry a low-friction plastic wear cover. A tubular die, fed with a supply of molten thermoplastic polymer, extrudes a tube of the molten pol... | 08/24/1999 |
| 5891480 | Apparatus for the continuous production of biaxially-stretched blown plastic foil A foil-blowing apparatus and start-up method utilizes switchable roller pairs and a seal in an upstream primary tube stretch to subdivide the interior of the primary tube into an upper chamber and a lower chamber, the lower chamber being in communication ... | 04/06/1999 |
| 5840244 | High impact LLDPE films with high stalk extrusion Blown films of linear low density polyethylene are produced by a high stalk process comprising extruding the linear low density polyethylene through an annular die to form an extruded tube of molten material, cooling the extruded tube while drawing the tu... | 11/24/1998 |
| 5789042 | Thin LCP film process A process for producing LCP films that have improved tear resistance, improved balance of physical properties, and relatively wrinkle-free surfaces. An annular co-extrusion die is used to line the LCP with one or more surface layers of a nonadherent polym... | 08/04/1998 |
| 5681523 | Medium modulus polyethylene film and fabrication method Medium modulus, polyethylene films and bags with improved tear performance are made for heavy-duty packaging applications and hot-fill uses. Film compositions contain high molecular weight linear polyethylene and linear ethylene/-olefin interpolyme... | 10/28/1997 |
| 5667813 | Mandrel for cooling Apparatus for cooling a tubular thin film of thermoplastic resin in a melted state is described. The apparatus is capable of cooling the thin film from both the inside and the outside thereof while setting its diameter by interposing the film between the ... | 09/16/1997 |
| 5593703 | Mandrel for cooling Apparatus for cooling a tubular thin film of thermoplastic resin in a melted state is described. The apparatus is capable of cooling the thin film from both the inside and the outside thereof while setting its diameter by interposing the film between the ... | 01/14/1997 |
| 5565166 | Tube unit and process for its fabrication Tube units useful for a variety of application are provided. Preferably, individual laminated tubes are joined to each other by intermediate pieces to produce a wide ribbon of parallel tubes. The tubes are porous to certain substances, allowing them to se... | 10/15/1996 |
| 5540881 | Apparatus and process for automatically blowing a bubble The present invention relates to an apparatus for automatically blowing a bubble in the production of tubular biaxially stretch oriented thermoplastic flexible film by the "bubble" method comprising a high flow fluid conduit having a proximal end for intr... | 07/30/1996 |
| 5511964 | Apparatus for the production of plastic pipes An apparatus for the manufacturing of plastic pipes has half shells of which two at a time combine as a pair to form a mold. It is provided with a temperature-regulating bell. Supply lines are formed as flexible supply hoses of temperature-resistant plast... | 04/30/1996 |
| 5505897 | Method for forming a pipe A method for manufacturing plastic pipe such that the pipe has apertures formed therein when the pipe is viewed in cross-section, comprising the steps of having hot plastic flow through a die and subsequently be extruded through a die head to form an extr... | 04/09/1996 |
| 5443769 | Polystyrene foam sheet manufacture The method of making polystyrene foam for foam products which includes utilizing atmospheric gases as the blowing agents or preferably mixing one or more of these gases and a blending agent which is non-volatile at the extrusion temperatures, introducing ... | 08/22/1995 |
| 5437544 | Flattening and removing device for a plastic tubular film web produced in a blowing process A flattening and removing device for a plastic tubular film web produced by a stationary film blowing head in a blowing process has two deflecting rollers and two turning bars. The first deflecting roller and the squeezing roller are mounted parallel to e... | 08/01/1995 |
| 5403539 | Method and apparatus for molding inflation film A method and apparatus for molding an inflation film even from a thermoplastic resin having a small melt tension, in which a melt resin bubble extruded from an extruder is molded, while controlling a resin temperature of the bubble to a certain temperatur... | 04/04/1995 |
| 5322664 | Clear film extrusion from an annular die A method and apparatus is provided for forming clear shrinkable film material for use as labels on containers. A blend of general purpose polystryene and styrene-butadiene or styrene butyl acrylate is extruded from an annular extruder die orifice to form ... | 06/21/1994 |
| 5290498 | Ultra-high molecular weight polyethylene thin-wall pipe, and method of and apparatus for manufacturing the same A method of manufacture of an ultra-high molecular weight polyethylene thin-wall pipe which is uniform in thickness and free from a folded mark. The ultra-high molecular weight polyethylene thin-wall pipe is manufactured by supplying ultra-high molecular ... | 03/01/1994 |
| 5281119 | Apparatus for the production of foamed polyolefin sheets An apparatus for the formation of a foamed polyolefin sheet provided with a cylindrical cooling device for cooling a foamed extruded tubular body at one end of an extruder, air outlets for increasing the internal pressure of the cooled foamed tubular body... | 01/25/1994 |
| 5202065 | Ultrasonic method of producing a score in a thermoplastic film pouch A method of creating a score in a pouch formed from a thermoplastic film is described. Ultrasonic energy is used to create the score in a film that is later formed into a pouch. The score can be used to open the pouch by pulling opposite sides of the scor... | 04/13/1993 |
| 5102602 | Adjustable diehead An improved adjustable diehead assembly for mounting on a plastic extrusion machine is described. A discharge orifice for a parison of plastic is formed by a mandrel and annular member. The annular member is moveable by a holder assembly perpendicular to ... | 04/07/1992 |
