Processing Or Treatment After Extrusion (e.g., Support, Guide, Etc.) Patents (Class 264/177.17)
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Patent number: 8192663Abstract: A method for manufacturing a tire includes making at least one semi-finished elementary product of elastomeric material and depositing it in adjacent turns on a toroidal support. Making the at least one elementary product includes extruding the elastomeric material through an extruder head including a bushing defining a tapered extrusion channel. An extruder includes a chamber, at least one helical screw disposed in the chamber, and the extruder head. The head includes an outer tubular body attached by one end to the chamber, a bushing disposed inside the body to define the tapered extrusion channel, and a die disposed inside the body. A ratio of an area of the inlet section to an area of the outlet section is greater than 5:1 and less than 100:1 and a ratio of a diameter of the inlet section to a length of the bushing is greater than 0.1 and less than 1:1.Type: GrantFiled: February 5, 2002Date of Patent: June 5, 2012Assignee: Pirelli Pneumaticai S.p.A.Inventors: Rodolfo Noto, Ignazio De Gese, Gaetano Lo Presti
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Publication number: 20120126446Abstract: The invention relates to a method for producing a concrete body having a planar upper side, wherein a high surface quality is obtained. In the method, a concrete body is extruded from unset concrete and is provided with a groove profile at the upper side thereof by means of a profiling unit. By means of the profiling unit and depending on the comb-shaped profile thereof, the sand particles are separated according to size, wherein large sand particles are displaced from the surface area of the concrete body toward the inside, this being toward the interior of the concrete body. Only fine sand particles can pass the profile, whereby raised areas of the groove profile are formed, which are made of extremely fine-grained unset concrete. Subsequently, the upper side of the concrete body is leveled by means of a leveling unit, wherein the raised areas of the groove profile are crushed and the fine-grained unset concrete of the raised areas of the groove profile is distributed to form a cover layer.Type: ApplicationFiled: April 23, 2010Publication date: May 24, 2012Inventors: Maik Rower, Benno Bohm, Burkhard Marczok
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Publication number: 20120128974Abstract: A biaxially oriented laminate film including a core layer including a blend of crystalline polylactic acid polymer and a minority amount of polyolefin with a compatibilizing resin which is biaxially oriented such that a matte or opaque appearance is obtained. The laminate film may further have additional layers such as a heat sealable layer disposed on one side of the core layer including an amorphous polylactic acid resin and/or a polylactic acid resin-containing layer disposed on the side of the core layer opposite the heat sealable layer, a metal layer, or combinations thereof.Type: ApplicationFiled: January 31, 2012Publication date: May 24, 2012Applicant: TORAY PLASTICS (AMERICA), INC.Inventor: Mark S. LEE
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Publication number: 20120104645Abstract: A product (10) made from an extruded sheet or web of material (42) having a non-linear cross-section, and the process of making the product (10) is provided. The extruded web or extrudate (42) is plastically deformed in selected areas and then folded. When folded into the appropriate shape, the extrudate (42) is formed into a product (10) having a plurality of cells (14). The cells (14a) may have one or more openings (34a), allowing access to an interior of the cell (14a) and reducing the weight of the product (10a).Type: ApplicationFiled: January 6, 2012Publication date: May 3, 2012Applicant: BRADFORD COMPANYInventor: Judson A. Bradford
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Patent number: 8168104Abstract: Disclosed herein are a method of manufacturing a wood plastic composite panel, including a panel manufacturing process of extruding and cooling a resin complex, such that wood fiber is uniformly dispersed into a synthetic resin matrix, to manufacture the resin complex into the form of a panel, an embossing process of forming a wood pattern corresponding to the cut-open surface of a natural lumber on the surface of the panel to a predetermined depth, and a brushing process of removing some of a synthetic resin layer from the surface of the panel to form linear micro concavo-convex parts to a predetermined depth, and an apparatus for manufacturing a wood plastic composite panel that is capable of efficiently performing the same.Type: GrantFiled: November 13, 2006Date of Patent: May 1, 2012Assignee: LG Chem, Ltd.Inventors: Yousoo Han, Seongchan Park, Jungil Son, Dongjin Kim, Sangho Han, Yunhwan Hwang
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Patent number: 8147644Abstract: A release liner web has thermoplastic membranes coated on opposite sides of the release liner web that are thermoplastically fused proximally to an edge of the release liner web, nearly doubling the width of thermoplastic membranes that can be prepared using conventional equipment. Also described are geomembranes prepared from an amorphous or semi-crystalline thermoplastic sheet material and having a high gloss surface, and methods of manufacture and use of same.Type: GrantFiled: June 19, 2006Date of Patent: April 3, 2012Assignee: Firestone Building Products Company, LLCInventor: William D. Tippins
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Publication number: 20120077005Abstract: Improved microlayer structures and methods typically employing at least 4 stacked layers of polymers (e.g., including alternating layers of components A and B), such as that obtained by coextrusion. The layers each have a thickness of less than about 50 microns. One optional approach involves forming an intermediate form that includes at least one elongated member made from the plurality of layers, from which a shaped composite article may be made.Type: ApplicationFiled: September 1, 2011Publication date: March 29, 2012Inventors: Hongyu Chen, Ronald Wevers, David G. McLeod
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Publication number: 20110305913Abstract: Biaxially oriented polyester films including polyester polymer, a carbodiimide hydrolysis stabilizer, and a UV absorber are described. The polyester films have a carboxyl end group concentration of 5-20 equivalents per ton, and a haze value of 2% or less. The films exhibit superior transparency and possess stable light transmission characteristics. Methods of making the films and articles produced from the films are also described.Type: ApplicationFiled: June 9, 2011Publication date: December 15, 2011Applicant: Toray Plastics (America), Inc. Lumirror DivisionInventors: Carlos HINTON, Nao Yokota, Hirokazu Tajima, Roberto Siu
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Patent number: 8075812Abstract: A method of separating a poly(arylene ether) from a solvent includes treating a poly(arylene ether)-containing solution with a devolatilizing extruder to form an extruded composition, and cooling the extruded composition with a cooling device that does not immerse the extruded composition in water. The composition may be used to isolate a poly(arylene ether) from the solvent-containing reaction mixture in which it is prepared, or to remove solvent from a multi-component poly(arylene ether)-containing thermoplastic composition.Type: GrantFiled: April 4, 2007Date of Patent: December 13, 2011Assignee: Sabic Innovative Plastics IP B.V.Inventors: Christina Louise Braidwood, Alvaro Carrillo, Hua Guo, Gerardo Rocha-Galicia
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Publication number: 20110281982Abstract: This invention relates woven jumbo polypropylene bags manufactured from a polypropylene resin that includes a low molecular weight hindered amine light stabilizer, a high molecular weight hindered amine light stabilizer, a first antioxidant, and a second antioxidant. Also provided are methods for the preparation of woven jumbo polypropylene bags.Type: ApplicationFiled: May 12, 2011Publication date: November 17, 2011Applicant: Saudi Arabian Oil CompanyInventors: Ahmed Ali Basfar, Khondoker Muhammad Idriss Ali, Milind M. Vaidya, Ahmed Abdullah Bahamdan
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Publication number: 20110260355Abstract: A heat-shrinkable polylactic acid (PLA) film and a method of its manufacture are provided. In an exemplary embodiment, the PLA films exhibit heat-induced shrinkage in the transverse direction with little to no concomitant shrinkage in the machine direction. The films may comprise any grade of PLA polymer, optionally including additives, such as antiblock, slip, plasticizers, viscosity enhancers and combinations thereof. A method of cast and tenner manufacture is disclosed, which includes a temperature conditioning step.Type: ApplicationFiled: July 7, 2011Publication date: October 27, 2011Inventors: Edward Carl TWEED, Joseph B. MCDANIEL
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Patent number: 8046097Abstract: Methods for generating supports (30) for parts (50) produced by solid freeform fabrication (“SFF”) are disclosed. The method includes defining a plurality of layers (L) that make up the part, and for each layer, determining those regions (R) that require support. The method also includes merging the regions for the different layers (L) into one or more common regions that require support, and providing at least one support for each of the one or more common regions. The result is that fewer supports are used as compared to conventional SFF fabrication methods.Type: GrantFiled: September 17, 2008Date of Patent: October 25, 2011Assignee: 3D Systems, Inc.Inventors: Charles W. Hull, Rajeev Kulkarni, Medhi Mojdeh, Hongqing V. Wang, John Corbin West
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Publication number: 20110254194Abstract: The invention relates to the extrusion of tire components with a large change of gauge across their cross-sectional area. It is provided a method and an assembly for extruding such a tire component with an extruder feeding a flow channel with a downstream die opening, whereby a deflector is provided in the flow channel upstream the die opening such that a flow of rubber is slowed down in front of broad portions of the cross-sectional area of the downstream die, avoiding distortion or bending of the extruded tire component.Type: ApplicationFiled: June 28, 2011Publication date: October 20, 2011Applicant: THE GOODYEAR TIRE & RUBBER COMPANYInventors: Jean Luc Dheur, Erich Nicolaus Lemaire, Michel Meunier
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Patent number: 8039066Abstract: A cellulous acylate film in which X-ray diffractive intensity satisfies the following Formulae (I) to (V) and in which a half-value width of the peak at 2?2 is 2.8° or less as observed in the sectional view in a direction parallel to the transport direction of the film: 0.00?Ici/Ico<0.60;??Formula (I) Iam=I1+{(I3?I1)/(2?3?2?1)}×(2?2?2?1);??Formula (II) Ic=I2?Iam;??Formula (III) Ici=Ic11/Ic12; and??Formula (IV) Ico={(Ic21/Ic22)+(Ic31/Ic32)}/2.Type: GrantFiled: May 18, 2007Date of Patent: October 18, 2011Assignee: FUJIFILM CorporationInventor: Yasuyuki Sasada
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Patent number: 8039067Abstract: A cellulous acylate film in which X-ray diffractive intensity satisfies the following Formulae (I) to (V) and in which a half-value width of the peak at 2?2 is 2.8° or less as observed in the sectional view in a direction parallel to the transport direction of the film: 0.60?Ici/Ico??Formula (I) Iam=I1+{(I3?I1)/(2?3?2?1)}×(2?2?2?1)??Formula (II) Ic=I2?Iam??Formula (III) Ici=Ic11/Ic12??Formula (IV) Ico={(Ic21/Ic22)+(Ic31/Ic32)}/2.Type: GrantFiled: May 18, 2007Date of Patent: October 18, 2011Assignee: FUJIFILM CorporationInventor: Yasuyuki Sasada
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Publication number: 20110236465Abstract: A mono-layer or multi-layer film wherein at least one of the layers has a thickness of at least 0.125 mm is produced from a melt-extruded polymer composition comprising a) a water-soluble polymer, b) an active ingredient and c) an adjuvant selected from the group consisting of mono- and disaccharides, sugar alcohols, low molecular weight water soluble polymers, and salts of cross-linked carboxymethylcellulose, with the proviso that the adjuvant c) is different from the water-soluble polymer a).Type: ApplicationFiled: February 25, 2011Publication date: September 29, 2011Inventors: Mark J. Hall, Michael D. Read, Uma Shrestha
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Publication number: 20110236666Abstract: A melt-extruded film is produced by a process which comprises the steps of blending a) a water-soluble polymer, b) an active ingredient, and c) optional additives and subjecting the blend to melt-extrusion to produce an extruded melt and drawing the extruded melt at a draw-down ratio of from 1.5 to 20 to a film of a thickness of at least 0.04 mm.Type: ApplicationFiled: February 25, 2011Publication date: September 29, 2011Inventors: Mark J. Hall, Michael D. Read, Uma Shrestha
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Publication number: 20110236443Abstract: High amounts of active ingredients, such as drugs, can be incorporated into a multilayer melt-extruded film which comprises i) one or more active ingredient layers produced from a melt-extruded polymer composition comprising a) a water-soluble polymer and b) an active ingredient; and ii) one or more removable protective layers which leave the active ingredient layer(s) substantially intact upon removal of the protective layer(s).Type: ApplicationFiled: February 25, 2011Publication date: September 29, 2011Inventors: Mark J. Hall, Karen A. Coppens, Michael D. Read, Uma Shrestha
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Publication number: 20110221092Abstract: A resilient wall base member manufactured with pre-scored grooves to allow relatively short, straight lengths to be used for both flat walls and wall corner junctures without on site scoring operations or equipment. The lengths can either be pre-cut during manufacturing to convenient lengths or can be cut after manufacturing from coils.Type: ApplicationFiled: March 28, 2011Publication date: September 15, 2011Applicant: BURKE INDUSTRIES, INC.Inventors: Craig Allen Carnes, Robert Francis Pitman
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Patent number: 8017052Abstract: A process and apparatus for making a shingle, together with the shingle made thereby, is provided, in which one or more thermoplastic materials are extruded or co-extruded to form an extrudate, with the extrudate being cut into a preliminary shingle shape, which is allowed to dissipate heat, and then is delivered to a compression mold, wherein the preliminary shingle shape is compression molded to substantially its final dimensions and is then discharged from the mold and allowed to cool.Type: GrantFiled: January 7, 2010Date of Patent: September 13, 2011Assignee: CertainTeed CorporationInventors: Thomas Kevin MacKinnon, Robert E. Dodd, Joong Youn Kim, Douglas H. Wylie
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Publication number: 20110217509Abstract: The present invention provides a resin film for a film capacitor making it possible to obtain the excellent heat resistance, materialize a reduction in a size of the film capacitor and an increase in a capacity thereof and satisfy a reduction in a thickness of the film and a high voltage resistance thereof. In a manufacturing method in which an extruding equipment 10 is charged with a molding material 1 to extrude a film 2 for a film capacitor from a T dice 20, in which the above extruded film 2 for a film capacitor is interposed between plural rolls in a receiving device 30 and cooled and in which the above cooled film 2 for a film capacitor is wound on a winding tube 42 of a winding device 40, 100 parts by mass of a polyetherimide resin is blended with 1 to 10 parts by mass of a fluorocarbon resin to prepare the molding material 1; the above molding material 1 is extruded through a filter 50 having apertures 51 which are 0.Type: ApplicationFiled: December 29, 2010Publication date: September 8, 2011Applicant: SHIN-ETSU POLYMER CO., LTD.Inventors: Takashi NOGAMI, Kenro TAKIZAWA, Kazuhiro SUZUKI, Junya ISHIDA
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Publication number: 20110209747Abstract: A biaxially oriented polyester film having: an equilibrium moisture content of from 0.1% by mass to 0.25% by mass; a difference between moisture contents measured at 10 cm intervals of from 0.01% by mass to 0.06% by mass; a degree of crystallinity of from 30% to 40%; a concentration of terminal carboxyl groups of from 5 equivalents/ton to 25 equivalents/ton; and a thickness of from 100 ?m to 350 ?m.Type: ApplicationFiled: February 25, 2011Publication date: September 1, 2011Applicant: FUJIFILM CORPORATIONInventor: Zemin SHI
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Publication number: 20110207840Abstract: The present invention provides a polyolefin resin composition which is excellent in mechanical properties and dimensional stability and is particularly excellent in heat resistance, a film which is excellent in mechanical properties, dimensional stability and heat resistance because it is obtained from the polyolefin resin composition and which is particularly excellent in meltdown properties, a macroporous membrane which is excellent in permeability and shutdown properties in addition to the above properties, and uses thereof. The polyolefin resin composition of the present invention (C) comprises 85 to 50% by mass of ultrahigh-molecular weight polyethylene (A) having a specific intrinsic viscosity and 15 to 50% by mass of a polymer (B) containing a repeating unit derived from 4-methyl-1-pentene, in 100% by mass of the polyolefin resin composition (C).Type: ApplicationFiled: November 18, 2009Publication date: August 25, 2011Applicant: Mitsui Chemicals, Inc.Inventors: Shota Abe, Atsushi Morita, Kazuto Sugiyama, Mineo Kubo
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Patent number: 7998545Abstract: A heat-shrinkable polylactic acid (PLA) film and a method of its manufacture are provided. In an exemplary embodiment, the PLA films exhibit heat-induced shrinkage in the transverse direction with little to no concomitant shrinkage in the machine direction. The films may comprise any grade of PLA polymer, optionally including additives, such as antiblock, slip, plasticizers, viscosity enhancers and combinations thereof. A method of cast and tenner manufacture is disclosed, which includes a temperature conditioning step.Type: GrantFiled: May 7, 2010Date of Patent: August 16, 2011Assignee: Plastic Suppliers, Inc.Inventors: Edward Carl Tweed, Joseph B. McDaniel
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Patent number: 7993552Abstract: The invention relates to composite compositions having a matrix of polymer networks and dispersed phases of particulate or fibrous materials. The matrix is filled with a particulate phase, which can be selected from one or more of a variety of components, such as fly ash particles, axially oriented fibers, fabrics, chopped random fibers, mineral fibers, ground waste glass, granite dust, or other solid waste materials. A system for providing shape and/or surface features to a moldable material includes, in an exemplary embodiment, at least two first opposed flat endless belts spaced apart a first distance, with each having an inner surface and an outer surface.Type: GrantFiled: April 20, 2006Date of Patent: August 9, 2011Assignee: Century-Board USA LLCInventor: Wade Brown
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Patent number: 7993553Abstract: The invention relates to composite compositions having a matrix of polymer networks and dispersed phases of particulate or fibrous materials. The matrix is filled with a particulate phase, which can be selected from one or more of a variety of components, such as fly ash particles, axially oriented fibers, fabrics, chopped random fibers, mineral fibers, ground waste glass, granite dust, or other solid waste materials. A system for providing shape and/or surface features to a moldable material includes, in an exemplary embodiment, at least two first opposed flat endless belts spaced apart a first distance, with each having an inner surface and an outer surface.Type: GrantFiled: April 20, 2006Date of Patent: August 9, 2011Assignee: Century-Board USA LLCInventor: Wade Brown
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Patent number: 7964126Abstract: A method of preventing gravity-induced deformation of a ceramic green body. The method comprises providing a ceramic green body and disposing the body in a fluid medium bath having a density that is greater than or equal to that of the ceramic green body. The green body is suspended and floats freely in the fluid medium, and deformation of the green body due to its own weight is prevented. Outer or peripheral portions of the ceramic green body may also be stiffened when the fluid medium bath comprises an aqueous salt solution comes into contact with the green body and causes gelation of a binder within the ceramic green body.Type: GrantFiled: November 14, 2008Date of Patent: June 21, 2011Assignee: Corning IncorporatedInventor: Michael Edward DeRosa
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Publication number: 20110143117Abstract: A stock shape for machining, which is composed of an extruded product of a resin composition comprising 30 to 94% by mass of a thermoplastic resin (A), 5 to 40% by mass of a carbon precursor (B) having a volume resistivity of 102 to 1010 ?cm and 1 to 30% by mass of a conductive filler (C) having a volume resistivity lower than 102 ?·cm and has a thickness or diameter exceeding 3 mm, and a process for producing the stock shape by extrusion and solidification of the resin composition.Type: ApplicationFiled: February 22, 2011Publication date: June 16, 2011Applicant: KUREHA CORPORATIONInventors: Naomitsu Nishihata, Tatsuya Kawasaki
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Patent number: 7943683Abstract: Continuous processing methods for making absorbable polymeric films with one or more of the following properties: high toughness, low modulus, high tensile strength, and thickness less than 10 mm, more preferably less than 1 mm, and more preferably less than 100 ?m, have been developed. In the preferred embodiment, the polymer is a polyhydroxyalkanoate, and in the most preferred embodiment, the polymer comprises 4-hydroxybutyrate. A particularly preferred embodiment is a film of poly-4-hydroxybutyrate or copolymer thereof, wherein the film has a tensile strength greater than 5.5 kgf/mm2, tensile modulus less than 181 kgf/mm2, and elongation at break from 10-500%, wherein the film is derived by a continuous process such as melt extrusion or solvent casting, followed by orientation to more than 25% of the film's original length in one or more directions. These can be used for a variety of purposes including fabrication of medical devices.Type: GrantFiled: October 31, 2007Date of Patent: May 17, 2011Assignee: Tepha, Inc.Inventors: Said Rizk, David P. Martin, Kicherl Ho, Simon F. Williams
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Publication number: 20110101561Abstract: A method for forming a resin molded article includes a step of extruding a thermoplastic resin intermittently at a predetermined speed from an extrusion slit, such that the resin droops downward in a shape of a sheet. The method further includes the steps of: feeding the extruded sheet-shaped resin downward by a pair of rollers; and forming the sheet-shaped resin with a mold. In the step of feeding the sheet-shaped resin, one of the rollers is pressed against the other, but not to the extent of crushing the sheet-shaped resin, regardless of the thickness of the sheet-shaped resin. In addition, a surface temperature of each of the rollers is set lower than a temperature of the sheet-shaped resin and within a predetermined temperature range. This method can prevent sliding contact between the rollers and the sheet, while preventing the sheet from being wound around the rollers.Type: ApplicationFiled: August 26, 2010Publication date: May 5, 2011Applicant: KYORAKU CO., LTD.Inventors: Tadatoshi TANJI, Shingo NAGASHIMA
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Patent number: 7919028Abstract: A process for forming flexible noise attenuating cutting line for use in rotary vegetation trimmers formed of at least two monofilament polymer strands bonded together in a twisted disposition or a single strand twisted about its central axis in which the strand or strands are extruded in a molten disposition through a single die that is rotated during the extruding step either to twist the two strands together about a central longitudinal axis or a single strand about its own longitudinal axis such that upon cooling, stretching and heating, a flexible noise attenuating line is created in a continuous online process.Type: GrantFiled: May 14, 2010Date of Patent: April 5, 2011Assignee: Proulx Manufacturing, Inc.Inventors: Richard A. Proulx, William P. Conley, Rodger D. Thomason
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Patent number: 7914841Abstract: A method of forming a coated medical device is described. A coating may be applied inline to a continuous tubing formed by extrusion, prior to cutting and secondary operations. Thus, inefficient and labor-intensive steps associated with preparing individual tubes for coating may be avoided. The method may include forcing a flowable material through an exit port of an extruder, depositing a coating onto at least a portion of the continuous length of extruded tubing after the tubing is forced through the exit port, cutting the coated tubing to a desired length after depositing the coating, and performing one or more secondary operations on the coated tube at a temperature in the range of from about 15° C. to about 375° C.Type: GrantFiled: February 1, 2007Date of Patent: March 29, 2011Assignee: Cook Medical Technologies LLCInventors: Scott E. Eells, David R. Lessard
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Patent number: 7883332Abstract: The method makes it possible to produce a seal (1) of an extruded plastics material, including a tubular section (3) with a wall of variable thickness (WT), using a distribution chamber having a terminal die plate (12) with an annular extrusion orifice (15) formed therein, corresponding to the cross section of the tubular section (3). A chamber (18) is formed in the distribution chamber in communication with the extrusion orifice (13) and into which an elastomeric material is fed for forming the tubular section (3). The chamber (18) of the distribution chamber is in open communication with the outside environment by a passage (21) which is separate from the extrusion orifice (13) and is provided to carry a flow of elastomeric material coming from the chamber (18).Type: GrantFiled: September 10, 2004Date of Patent: February 8, 2011Assignee: Metzeler Automotive Profile Systems Italy S.p.A.Inventor: Rosario Ocera
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Patent number: 7879283Abstract: A sizer assembly for providing a shaped polymeric article in an extrusion process includes a sizer body having a product profile channel corresponding to the shaped polymeric article formed therethrough. The sizer body includes a plurality of cooling liquid inlet slots forming an opening substantially around the product profile channel and a plurality of vacuum slots forming an opening substantially around the product profile channel for removing cooling liquid expelled from said cooling liquid inlet slots.Type: GrantFiled: August 31, 2009Date of Patent: February 1, 2011Assignee: Certainteed CorporationInventors: Kevin D. Hartley, Robert C. McEldowney, Thomas G. Gilbert, Thomas A. Gates
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Patent number: 7829009Abstract: The invention relates to a process for the production of a polymer layer of a flexible unbonded offshore pipe. The process comprises the steps of shaping a polymer material by extrusion into or onto a supporting unit in an extrusion station and cross-linking said extruded polymer material, said polymer material comprising a polyethylene and a peroxide for providing a cross-linking of the polymer material. The peroxide has an activation temperature substantially above the temperature of the polymer material during the extrusion thereof. The cross-linking of the extruded polymer material is carried out by exposing the extruded polymer material to electromagnetic waves, selected from the group consisting of infrared radiation and microwave. The invention also relates to a flexible unbonded offshore pipe comprising such polymer layer.Type: GrantFiled: March 20, 2003Date of Patent: November 9, 2010Assignee: NKT Flexibles I/SInventor: Inger-Margrethe Procida
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Patent number: 7785510Abstract: A process and apparatus for making a shingle, together with the shingle made thereby, is provided, in which one or more thermoplastic materials are extruded or co-extruded to form an extrudate, with the extrudate being cut into a preliminary shingle shape, which is allowed to dissipate heat, and then is delivered to a compression mold, wherein the preliminary shingle shape is compression molded to substantially its final dimensions and is then discharged from the mold and allowed to cool.Type: GrantFiled: September 15, 2005Date of Patent: August 31, 2010Assignee: CertainTeed CorporationInventors: Thomas Kevin MacKinnon, Robert E. Dodd, Joong Youn Kim, Douglas H. Wylie
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Publication number: 20100132824Abstract: A composite strip (10) windable to form a helical pipe for transporting fluid is disclosed. The composite strip comprises: an elongate plastic strip (11) having a base portion (12), the base portion (12) having an upper side defining an outer face (15); and at least one lengthwise extending composite rib portion (20) upstanding from the outer face (15) of the base portion (12). The rib portion (20) has a distal end (23) remote from the base portion (12). The composite rib portion comprises: an elongate inboard reinforcing member (30) disposed within or adjacent to the base portion (12); an elongate outboard reinforcing (40) member disposed within the distal end (20) of the rib portion (20) parallel to the inboard reinforcing member (30); and an elongate intermediate plastic web (23) portion extending between the inboard and outboard reinforcing members (30, 40). When wound into a helical pipe, the composite rib portion (20) reinforces the pipe against radial crushing loads.Type: ApplicationFiled: October 3, 2007Publication date: June 3, 2010Inventors: Shaun Thomas Melville, John Gerard Taylor, Steven David Gerald Harvey
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Patent number: 7727440Abstract: A method of forming a fastener is provided, including (a) forming, from a thermoformable material, a preform product having a sheet-form base and an array of preform stems integrally molded with and extending from the base to corresponding terminal ends; (b) heating the terminal ends of the stems to a predetermined softening temperature, while maintaining the sheet-form base and a lower portion of each stem at a temperature lower than the softening temperature; and (c) contacting the terminal ends with a contact surface that is at a predetermined forming temperature, lower than the softening temperature, to deform the terminal ends to form heads therefrom that overhang the sheet-form base. Fasteners and other methods of forming them are also provided.Type: GrantFiled: December 6, 2004Date of Patent: June 1, 2010Assignee: Velcro Industries B.V.Inventors: Luis Parellada Armela, Juan Sánchez, William Clune, Jefferson Davis, Christopher M. Gallant, Melissa Spezzafero, Mark A. Clarner, William L. Huber, David P. Kraus, Jr., George A. Provost, Howard A. Kingsford, Michel Labrecque
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Patent number: 7718103Abstract: A process for forming flexible noise attenuating cutting line for use in rotary vegetation trimmers formed of at least two monofilament polymer strands bonded together in a twisted disposition or a single strand twisted about its central axis in which the strand or strands are extruded in a molten disposition through a single die that is rotated during the extruding step either to twist the two strands together about a central longitudinal axis or a single strand about its own longitudinal axis such that upon cooling, stretching and heating, a flexible noise attenuating line is created in a continuous online process.Type: GrantFiled: May 5, 2006Date of Patent: May 18, 2010Assignee: Proulx Manufacturing, Inc.Inventors: Richard A. Proulx, William P. Conley, Rodger D. Thomason
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Patent number: 7713601Abstract: A heat-shrinkable polylactic acid (PLA) film and a method of its manufacture are provided. In an exemplary embodiment, the PLA films exhibit heat-induced shrinkage in the transverse direction with little to no concomitant shrinkage in the machine direction. The films may comprise any grade of PLA polymer, optionally including additives, such as antiblock, slip, plasticizers, viscosity enhancers and combinations thereof. A method of cast and tenner manufacture is disclosed, which includes a temperature conditioning step.Type: GrantFiled: November 20, 2006Date of Patent: May 11, 2010Assignee: Plastic Suppliers, Inc.Inventors: Edward Carl Tweed, Joseph B. McDaniel
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Patent number: 7695655Abstract: A molded body cutting apparatus according to the present invention comprising a first conveyer member that conveys an extrusion-molded pillar-shaped ceramic molded body a cutting member that moves in a direction parallel to a movement direction of the above mentioned first conveyer member while moving also in a vertical direction, and cuts the above mentioned ceramic molded body to a predetermined length by passing through the interior of the above mentioned ceramic molded body and a second conveyer member that conveys a cut ceramic molded body cut to a predetermined length by the above mentioned cutting member, wherein a conveyance speed of the above mentioned first conveyer member and a movement speed of the above mentioned cutting member in the above mentioned parallel direction are almost the same, before the above mentioned ceramic molded body is cut, and each of the conveyance speed of the above mentioned first conveyer member, the movement speed of the above mentioned cutting member in the above mentioType: GrantFiled: April 6, 2007Date of Patent: April 13, 2010Assignee: Ibiden Co., Ltd.Inventors: Norihiko Yamamura, Kazuya Naruse, Eiji Sumiya
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Publication number: 20100075075Abstract: A flexible tube is constituted of a flexible tubular structure, a jacket for covering the periphery of the tubular structure, and a coating layer for coating the jacket. The jacket has a soft resin layer and hard resin layer, and has constant thickness throughout its length. The thickness of the soft resin layer is tapered from a distal end to a proximal end of the tubular structure. The hard resin layer applied on the soft resin layer gradually thickens from the distal end to the proximal end, conversely. While an assembly, which includes a plurality of tubular structures coupled in series, is passing through a head section, two layers of the soft resin layer and hard resin layer are successively formed thereon. The assembly with the jacket is wound up after cooling. After a dust removing step, a coating layer is applied on the hard resin layer.Type: ApplicationFiled: September 22, 2009Publication date: March 25, 2010Applicant: Fujifilm CorporationInventor: Nobuharu TAKAHASHI
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Publication number: 20100068962Abstract: The invention relates to a multilayered material sheet comprising a consolidated stack of unidirectional monolayers of drawn ultra high molecular weight polyolefine. The draw direction of two subsequent monolayers in the stack differs. Moreover the thickness of at least one monolayer does not exceed 50 ?m, and the strength of at least one monolayer is comprised between 1.2 GPa and 3 GPa. The invention also relates to a ballistic resistant article comprising the multilayered material sheet and to a process for the preparation of the ballistic resistant article.Type: ApplicationFiled: April 26, 2007Publication date: March 18, 2010Inventor: Roelof MARISSEN
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Patent number: 7670540Abstract: Disclosed herein are an apparatus and method for manufacturing a balloon catheter in which a non-contact type laser perforator and printer are separately provided above a primary extruder such that inflation apertures can be uniformly perforated through a non-vulcanized lumen tube and simultaneously, tube cutting positions can be printed on the lumen tube at positions uniformly spaced apart from the inflation apertures without stopping a primary extrusion process. Also, a bond preventing agent layer is coated on the lumen tube at balloon inflating portions prior to cutting the tube, to facilitate a secondary extrusion of the tube. With this configuration, continuous and accurate perforation of inflation apertures is possible and automatic tube cutting can be achieved based on the printed tube cutting positions. Also, the present invention can compensate for a time delay due to a bond preventing agent application process and achieve high productivity and minimized loss of material.Type: GrantFiled: May 30, 2006Date of Patent: March 2, 2010Inventor: Keun-Ho Lee
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Publication number: 20100032861Abstract: A building product which includes a hollow extrudate, unitary reinforcing ribs resisting collapse of the hollow extrudate and, in an embodiment, an exterior surface comprises a low gloss, textured pattern having a gloss level of less than about 50 on a 60° glossmeter, in which the textured pattern extends for about 2-20 feet. Methods and an apparatus for manufacturing such products are also provided by this invention.Type: ApplicationFiled: October 14, 2009Publication date: February 11, 2010Inventors: CHRISTOPHER B. PIETRUCZYNIK, KENNETH D. BOSLER, THOMAS GILBERT, MARK SUCHYNA, MARK DUNMIRE
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Publication number: 20090311503Abstract: The present invention provides the following multilayer heat-shrinkable styrene-based film having an appropriate surface shape, together with excellent lubricity and blocking resistance, and resistance to ink skipping and like problems during the printing process: a multilayer heat-shrinkable styrene-based film having: layers (A) each containing 0.8 to 2.5 parts by weight of high impact polystyrene resin and 0.02 to 0.15 parts by weight of organic fine particles having a mean particle diameter of 0.5 to 5 ?m per 100 parts by weight of a block copolymer of 75 to 90 wt % vinyl aromatic hydrocarbon and 10 to 25 wt % conjugated diene hydrocarbon; and a layer (B1) containing a block copolymer of 70 to 85 wt % vinyl aromatic hydrocarbon and 15 to 30 wt % conjugated diene hydrocarbon; or a layer (B2) containing a resin composition containing a copolymer of 98 to 40 wt % vinyl aromatic hydrocarbon and 2 to 60 wt % aliphatic unsaturated carboxylic acid ester.Type: ApplicationFiled: July 20, 2007Publication date: December 17, 2009Inventors: Masaharu Maruo, Naoki Ohno, Tadayoshi Tanaka, Hiroyuki Furukawa
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Patent number: 7628945Abstract: Extruding radiused plastic articles with an extruding machine terminating in die defining a path of travel between upstream and downstream ends. The die has an outlet opening extending longitudinally in the direction of the path of travel, the opening oriented so a polymeric material is extruded therefrom in a direction approximately perpendicular to the path of travel through the die. Oppositely rotating rollers of tapered diameters are disposed side by side to receive the extrudate therebetween, the rollers arranged so their longitudinal axes intersect and their smaller diameters are oriented towards the downstream end of the die. Extrudate passing through the opening is characterized by a higher flow rate proximate the upstream end thereof to thereby form a radiused extrusion. The rollers draw the extrudate from the die outlet opening without significantly altering the radiused shape of the fluid plastic material.Type: GrantFiled: February 17, 2006Date of Patent: December 8, 2009Inventor: Larry P. Collins
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Publication number: 20090290982Abstract: A deformable trailing edge section (3) of a wind turbine blade (1), at least part of said section (3) being formed in a deformable material. The blade section (3) comprises one or more cavities (5) being in connection with or connectable to a fluid source in a way that allows fluid to stream from the fluid source to the cavity or cavities (5), so that the shape of the deformable trailing edge section (3) and thereby the camber of the blade cross-section (3) is changeable by the pressure of fluid in the cavity or cavities (5) with insignificant changes of the thickness and chord wise length of the deformable trailing edge section. Furthermore a wind turbine blade (1) is described, having at least one of such trailing edge section (s) (3) and to a system (11) for mounting a blade section (3) on a main blade (2) of a wind turbine. In addition a method of manufacturing a deformable trailing edge section (3) of a wind turbine blade (1) is disclosed.Type: ApplicationFiled: July 6, 2007Publication date: November 26, 2009Inventors: Helge Aagaard Madsen, Flemming Rasmussen, Thomas Buhl, Morten Hartvig Hansen, Dan Christian Bak, Mac Gaunaa, Peter Bjørn Andersen
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Patent number: 7611660Abstract: The present invention relates to an apparatus and method for cooling material during continuous vacuum forming. The apparatus includes one or more cooling regions positioned adjacent one or more vacuum regions. A rotatable support belt including perforations therein supports a flexible patterned belt. The flexible patterned belt includes apertures spaced along the length and width thereof. The one or more cooling regions provide a cooling fluid to be drawn through the apertures in the flexible patterned belt to form an area of cooling fluid on the flexible patterned belt which contacts a bottom surface of a hot material received on the flexible patterned belt in order to cool the bottom surface of the material and the flexible patterned belt. The vacuum regions are in fluid flow communication with the perforations of the support belt and the apertures of the flexible patterned belt for drawing the material onto the flexible patterned belt.Type: GrantFiled: July 18, 2006Date of Patent: November 3, 2009Assignee: Bosler Design Services, Inc.Inventor: Kenneth D. Bosler
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Patent number: 7585444Abstract: A method of winding a length of plastic ribbon (such as a zipper of the type used in reclosable packaging) around a cylinder of a spool having a first flange at one end and a second flange at the other end, comprising the following steps: (a) winding the ribbon with a winding tension in a first range when the portion of the ribbon being wound is within a first volume surrounding a central region of the cylinder; and (b) winding the ribbon with a winding tension in a second range when the portion of the ribbon being wound is within second and third volumes surrounding respective portions of the cylinder disposed between the central region and the first and second flanges respectively. To reduce camber in the portions of the wound ribbon disposed in the second and third volumes, i.e., near the respective spool flanges, the upper limit of the second range of winding tension is less than the lower limit of the first range of winding tension, i.e.Type: GrantFiled: June 14, 2005Date of Patent: September 8, 2009Assignee: Illinois Tool Works Inc.Inventors: Carroll F. Baranowske, III, Rusty Koenigkramer, Hugh K. Schedler, Carolyn Cannan, legal representative