Processing Or Treatment After Extrusion (e.g., Support, Guide, Etc.) Patents (Class 264/177.17)
  • Patent number: 8192663
    Abstract: 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: Grant
    Filed: February 5, 2002
    Date of Patent: June 5, 2012
    Assignee: Pirelli Pneumaticai S.p.A.
    Inventors: Rodolfo Noto, Ignazio De Gese, Gaetano Lo Presti
  • Publication number: 20120126446
    Abstract: 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: Application
    Filed: April 23, 2010
    Publication date: May 24, 2012
    Inventors: Maik Rower, Benno Bohm, Burkhard Marczok
  • Publication number: 20120128974
    Abstract: 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: Application
    Filed: January 31, 2012
    Publication date: May 24, 2012
    Applicant: TORAY PLASTICS (AMERICA), INC.
    Inventor: Mark S. LEE
  • Publication number: 20120104645
    Abstract: 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: Application
    Filed: January 6, 2012
    Publication date: May 3, 2012
    Applicant: BRADFORD COMPANY
    Inventor: Judson A. Bradford
  • Patent number: 8168104
    Abstract: 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: Grant
    Filed: November 13, 2006
    Date of Patent: May 1, 2012
    Assignee: LG Chem, Ltd.
    Inventors: Yousoo Han, Seongchan Park, Jungil Son, Dongjin Kim, Sangho Han, Yunhwan Hwang
  • Patent number: 8147644
    Abstract: 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: Grant
    Filed: June 19, 2006
    Date of Patent: April 3, 2012
    Assignee: Firestone Building Products Company, LLC
    Inventor: William D. Tippins
  • Publication number: 20120077005
    Abstract: 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: Application
    Filed: September 1, 2011
    Publication date: March 29, 2012
    Inventors: Hongyu Chen, Ronald Wevers, David G. McLeod
  • Publication number: 20110305913
    Abstract: 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: Application
    Filed: June 9, 2011
    Publication date: December 15, 2011
    Applicant: Toray Plastics (America), Inc. Lumirror Division
    Inventors: Carlos HINTON, Nao Yokota, Hirokazu Tajima, Roberto Siu
  • Patent number: 8075812
    Abstract: 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: Grant
    Filed: April 4, 2007
    Date of Patent: December 13, 2011
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Christina Louise Braidwood, Alvaro Carrillo, Hua Guo, Gerardo Rocha-Galicia
  • Publication number: 20110281982
    Abstract: 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: Application
    Filed: May 12, 2011
    Publication date: November 17, 2011
    Applicant: Saudi Arabian Oil Company
    Inventors: Ahmed Ali Basfar, Khondoker Muhammad Idriss Ali, Milind M. Vaidya, Ahmed Abdullah Bahamdan
  • Publication number: 20110260355
    Abstract: 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: Application
    Filed: July 7, 2011
    Publication date: October 27, 2011
    Inventors: Edward Carl TWEED, Joseph B. MCDANIEL
  • Patent number: 8046097
    Abstract: 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: Grant
    Filed: September 17, 2008
    Date of Patent: October 25, 2011
    Assignee: 3D Systems, Inc.
    Inventors: Charles W. Hull, Rajeev Kulkarni, Medhi Mojdeh, Hongqing V. Wang, John Corbin West
  • Publication number: 20110254194
    Abstract: 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: Application
    Filed: June 28, 2011
    Publication date: October 20, 2011
    Applicant: THE GOODYEAR TIRE & RUBBER COMPANY
    Inventors: Jean Luc Dheur, Erich Nicolaus Lemaire, Michel Meunier
  • Patent number: 8039066
    Abstract: 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: Grant
    Filed: May 18, 2007
    Date of Patent: October 18, 2011
    Assignee: FUJIFILM Corporation
    Inventor: Yasuyuki Sasada
  • Patent number: 8039067
    Abstract: 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: Grant
    Filed: May 18, 2007
    Date of Patent: October 18, 2011
    Assignee: FUJIFILM Corporation
    Inventor: Yasuyuki Sasada
  • Publication number: 20110236465
    Abstract: 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: Application
    Filed: February 25, 2011
    Publication date: September 29, 2011
    Inventors: Mark J. Hall, Michael D. Read, Uma Shrestha
  • Publication number: 20110236666
    Abstract: 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: Application
    Filed: February 25, 2011
    Publication date: September 29, 2011
    Inventors: Mark J. Hall, Michael D. Read, Uma Shrestha
  • Publication number: 20110236443
    Abstract: 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: Application
    Filed: February 25, 2011
    Publication date: September 29, 2011
    Inventors: Mark J. Hall, Karen A. Coppens, Michael D. Read, Uma Shrestha
  • Publication number: 20110221092
    Abstract: 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: Application
    Filed: March 28, 2011
    Publication date: September 15, 2011
    Applicant: BURKE INDUSTRIES, INC.
    Inventors: Craig Allen Carnes, Robert Francis Pitman
  • Patent number: 8017052
    Abstract: 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: Grant
    Filed: January 7, 2010
    Date of Patent: September 13, 2011
    Assignee: CertainTeed Corporation
    Inventors: Thomas Kevin MacKinnon, Robert E. Dodd, Joong Youn Kim, Douglas H. Wylie
  • Publication number: 20110217509
    Abstract: 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: Application
    Filed: December 29, 2010
    Publication date: September 8, 2011
    Applicant: SHIN-ETSU POLYMER CO., LTD.
    Inventors: Takashi NOGAMI, Kenro TAKIZAWA, Kazuhiro SUZUKI, Junya ISHIDA
  • Publication number: 20110209747
    Abstract: 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: Application
    Filed: February 25, 2011
    Publication date: September 1, 2011
    Applicant: FUJIFILM CORPORATION
    Inventor: Zemin SHI
  • Publication number: 20110207840
    Abstract: 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: Application
    Filed: November 18, 2009
    Publication date: August 25, 2011
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Shota Abe, Atsushi Morita, Kazuto Sugiyama, Mineo Kubo
  • Patent number: 7998545
    Abstract: 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: Grant
    Filed: May 7, 2010
    Date of Patent: August 16, 2011
    Assignee: Plastic Suppliers, Inc.
    Inventors: Edward Carl Tweed, Joseph B. McDaniel
  • Patent number: 7993552
    Abstract: 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: Grant
    Filed: April 20, 2006
    Date of Patent: August 9, 2011
    Assignee: Century-Board USA LLC
    Inventor: Wade Brown
  • Patent number: 7993553
    Abstract: 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: Grant
    Filed: April 20, 2006
    Date of Patent: August 9, 2011
    Assignee: Century-Board USA LLC
    Inventor: Wade Brown
  • Patent number: 7964126
    Abstract: 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: Grant
    Filed: November 14, 2008
    Date of Patent: June 21, 2011
    Assignee: Corning Incorporated
    Inventor: Michael Edward DeRosa
  • Publication number: 20110143117
    Abstract: 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: Application
    Filed: February 22, 2011
    Publication date: June 16, 2011
    Applicant: KUREHA CORPORATION
    Inventors: Naomitsu Nishihata, Tatsuya Kawasaki
  • Patent number: 7943683
    Abstract: 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: Grant
    Filed: October 31, 2007
    Date of Patent: May 17, 2011
    Assignee: Tepha, Inc.
    Inventors: Said Rizk, David P. Martin, Kicherl Ho, Simon F. Williams
  • Publication number: 20110101561
    Abstract: 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: Application
    Filed: August 26, 2010
    Publication date: May 5, 2011
    Applicant: KYORAKU CO., LTD.
    Inventors: Tadatoshi TANJI, Shingo NAGASHIMA
  • Patent number: 7919028
    Abstract: 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: Grant
    Filed: May 14, 2010
    Date of Patent: April 5, 2011
    Assignee: Proulx Manufacturing, Inc.
    Inventors: Richard A. Proulx, William P. Conley, Rodger D. Thomason
  • Patent number: 7914841
    Abstract: 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: Grant
    Filed: February 1, 2007
    Date of Patent: March 29, 2011
    Assignee: Cook Medical Technologies LLC
    Inventors: Scott E. Eells, David R. Lessard
  • Patent number: 7883332
    Abstract: 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: Grant
    Filed: September 10, 2004
    Date of Patent: February 8, 2011
    Assignee: Metzeler Automotive Profile Systems Italy S.p.A.
    Inventor: Rosario Ocera
  • Patent number: 7879283
    Abstract: 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: Grant
    Filed: August 31, 2009
    Date of Patent: February 1, 2011
    Assignee: Certainteed Corporation
    Inventors: Kevin D. Hartley, Robert C. McEldowney, Thomas G. Gilbert, Thomas A. Gates
  • Patent number: 7829009
    Abstract: 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: Grant
    Filed: March 20, 2003
    Date of Patent: November 9, 2010
    Assignee: NKT Flexibles I/S
    Inventor: Inger-Margrethe Procida
  • Patent number: 7785510
    Abstract: 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: Grant
    Filed: September 15, 2005
    Date of Patent: August 31, 2010
    Assignee: CertainTeed Corporation
    Inventors: Thomas Kevin MacKinnon, Robert E. Dodd, Joong Youn Kim, Douglas H. Wylie
  • Publication number: 20100132824
    Abstract: 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: Application
    Filed: October 3, 2007
    Publication date: June 3, 2010
    Inventors: Shaun Thomas Melville, John Gerard Taylor, Steven David Gerald Harvey
  • Patent number: 7727440
    Abstract: 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: Grant
    Filed: December 6, 2004
    Date of Patent: June 1, 2010
    Assignee: 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
  • Patent number: 7718103
    Abstract: 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: Grant
    Filed: May 5, 2006
    Date of Patent: May 18, 2010
    Assignee: Proulx Manufacturing, Inc.
    Inventors: Richard A. Proulx, William P. Conley, Rodger D. Thomason
  • Patent number: 7713601
    Abstract: 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: Grant
    Filed: November 20, 2006
    Date of Patent: May 11, 2010
    Assignee: Plastic Suppliers, Inc.
    Inventors: Edward Carl Tweed, Joseph B. McDaniel
  • Patent number: 7695655
    Abstract: 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 mentio
    Type: Grant
    Filed: April 6, 2007
    Date of Patent: April 13, 2010
    Assignee: Ibiden Co., Ltd.
    Inventors: Norihiko Yamamura, Kazuya Naruse, Eiji Sumiya
  • Publication number: 20100075075
    Abstract: 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: Application
    Filed: September 22, 2009
    Publication date: March 25, 2010
    Applicant: Fujifilm Corporation
    Inventor: Nobuharu TAKAHASHI
  • Publication number: 20100068962
    Abstract: 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: Application
    Filed: April 26, 2007
    Publication date: March 18, 2010
    Inventor: Roelof MARISSEN
  • Patent number: 7670540
    Abstract: 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: Grant
    Filed: May 30, 2006
    Date of Patent: March 2, 2010
    Inventor: Keun-Ho Lee
  • Publication number: 20100032861
    Abstract: 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: Application
    Filed: October 14, 2009
    Publication date: February 11, 2010
    Inventors: CHRISTOPHER B. PIETRUCZYNIK, KENNETH D. BOSLER, THOMAS GILBERT, MARK SUCHYNA, MARK DUNMIRE
  • Publication number: 20090311503
    Abstract: 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: Application
    Filed: July 20, 2007
    Publication date: December 17, 2009
    Inventors: Masaharu Maruo, Naoki Ohno, Tadayoshi Tanaka, Hiroyuki Furukawa
  • Patent number: 7628945
    Abstract: 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: Grant
    Filed: February 17, 2006
    Date of Patent: December 8, 2009
    Inventor: Larry P. Collins
  • Publication number: 20090290982
    Abstract: 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: Application
    Filed: July 6, 2007
    Publication date: November 26, 2009
    Inventors: Helge Aagaard Madsen, Flemming Rasmussen, Thomas Buhl, Morten Hartvig Hansen, Dan Christian Bak, Mac Gaunaa, Peter Bjørn Andersen
  • Patent number: 7611660
    Abstract: 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: Grant
    Filed: July 18, 2006
    Date of Patent: November 3, 2009
    Assignee: Bosler Design Services, Inc.
    Inventor: Kenneth D. Bosler
  • Patent number: 7585444
    Abstract: 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: Grant
    Filed: June 14, 2005
    Date of Patent: September 8, 2009
    Assignee: Illinois Tool Works Inc.
    Inventors: Carroll F. Baranowske, III, Rusty Koenigkramer, Hugh K. Schedler, Carolyn Cannan, legal representative