Utilizing Electron Arc Or Electron Beam Patents (Class 264/456)
  • Patent number: 11430655
    Abstract: Techniques for deposition of high-density dielectric films for patterning applications are described. More particularly, a method of processing a substrate is provided. The method includes flowing a precursor-containing gas mixture into a processing volume of a processing chamber having a substrate positioned on an electrostatic chuck. The substrate is maintained at a pressure between about 0.1 mTorr and about 10 Torr. A plasma is generated at the substrate level by applying a first RF bias to the electrostatic chuck to deposit a dielectric film on the substrate. The dielectric film has a refractive index in a range of about 1.5 to about 3.
    Type: Grant
    Filed: October 13, 2020
    Date of Patent: August 30, 2022
    Assignee: Applied Materials, Inc.
    Inventors: Eswaranand Venkatasubramanian, Samuel E. Gottheim, Pramit Manna, Abhijit Basu Mallick
  • Patent number: 10759097
    Abstract: Provided is a molded article comprising an aliphatic polyester. The aliphatic polyester is at least one selected from the group consisting of polyglycolic acid and a copolymer of a glycolic acid monomer and a monomer other than the glycolic acid monomer. The molded article has a uniaxial compressive strength at a temperature of 23° C. of greater than 250 MPa and not greater than 350 MPa.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: September 1, 2020
    Assignee: KUREHA CORPORATION
    Inventors: Fuminori Kobayashi, Takahiro Watanabe, Hiroyuki Sato, Yoshinori Suzuki
  • Patent number: 10699916
    Abstract: To provide a mold release film which has excellent mold releasing property and is capable of reducing contamination of a mold in a sealing step; a process for producing the mold release film; and a process for producing a semiconductor package by using the mold release film. The mold release film 1 is a mold release film to be disposed on a surface of a mold which is to be in contact with a curable resin, in the production of a semiconductor package by disposing a semiconductor element in the mold, and sealing it with the curable resin to form a resin sealed portion. This mold release film 1 comprises a resin-side mold release layer 2 to be in contact with the curable resin at the time of forming the resin sealed portion, and a gas barrier layer 3. The gas barrier layer 3 contains at least one polymer (I) selected from the group consisting of a polymer having vinyl alcohol units and a polymer having vinylidene chloride units, and the thickness of the gas barrier layer 3 is from 0.1 to 5 ?m.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: June 30, 2020
    Assignee: AGC Inc.
    Inventors: Wataru Kasai, Masami Suzuki
  • Patent number: 9874390
    Abstract: A refrigerator is provided that includes a low energy refrigerator heat source. The refrigerator includes a heat source positioned at a source of latent heat. The heat source harvested heat from the source of latent heat and stores said heat in a fluid within that heat reservoir or heat exchanger. The warmed fluid is then supplied via a fluid pathway to an application requiring a heat output. Thus, the heat reservoir provides heat to the application without use of an energy-consuming device, which reduces the energy consumption of the refrigerator.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: January 23, 2018
    Assignee: Whirlpool Corporation
    Inventor: Patrick J. Boarman
  • Patent number: 9371702
    Abstract: The invention relates to well tubings, in particular oil well tubings, having an improved resistance to abrasion and corrosion. A well tubing comprises a plurality of tubing sections each having a bore and an inside diameter, wherein at least part of the tubing sections has polymer liners disposed within said bore of said tubing section, characterized in that said polymer liners are comprised of crosslinked polyethylene.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: June 21, 2016
    Assignee: Borealis AG
    Inventors: Martin Anker, Siegfried Liedauer, Markus Oberndorfer, Karin Thayer
  • Publication number: 20150061194
    Abstract: A vessel is configured to hold a product in an interior region formed in the vessel. The vessel includes an inner layer arranged to define the interior region and an outer layer. The vessel is formed using a blow-molding process in which a multiple layer parison is blow molded to form the vessel. The multiple layer parison is formed in an extrusion process in which a number of extruders are arranged to co-extrude associated inner and outer parisons to establish the multiple layer parison.
    Type: Application
    Filed: September 2, 2014
    Publication date: March 5, 2015
    Inventors: David Dezhou Sun, Philip A. Driskill, Jeffrey C. Minnette, Birju A. Surti, Jonathan K. Williams
  • Publication number: 20150061193
    Abstract: A vessel is configured to hold a product in an interior region formed in the vessel. The vessel includes an inner layer arranged to define the interior region and an outer layer. The vessel is formed using a blow-molding process in which a multiple layer parison is blow molded to form the vessel. The multiple layer parison is formed in an extrusion process in which a number of extruders are arranged to co-extrude associated.
    Type: Application
    Filed: September 2, 2014
    Publication date: March 5, 2015
    Inventors: David Dezhou Sun, Philip A. Driskill, Jeffrey C. Minnette, Birju A. Surti, Anthony R. Guarnera, Jonathan K. Williams
  • Publication number: 20150061192
    Abstract: A vessel is configured to hold a product in an interior region formed in the vessel. The vessel includes an inner layer arranged to define the interior region and an outer layer. The vessel is formed using a blow-molding process in which a multiple layer parison is blow molded to form the vessel. The multiple layer parison is formed in an extrusion process in which a number of extruders are arranged to co-extrude associated inner and outer parisons to establish the multiple layer parison.
    Type: Application
    Filed: September 2, 2014
    Publication date: March 5, 2015
    Inventor: David Dezhou Sun
  • Patent number: 8871011
    Abstract: A method for manufacturing an electret filter element includes preparing fibers and producing, by a spray device, a spray mist of fluid droplets which include an electrical charge formed by an electric field between detaching fluid droplets and a counter-electrode. The fibers are passed through the spray mist so as to wet the fibers with the fluid droplets. The fibers are laid down to form a fibrous layer.
    Type: Grant
    Filed: August 27, 2009
    Date of Patent: October 28, 2014
    Assignee: Carl Freudenberg KG
    Inventors: Klaus Veeser, Martin Krause, Toan-Hieu Giang, Jochen Zabold
  • Patent number: 7850898
    Abstract: The invention relates to a process for manufacturing a water reservoir with an inlet and an outlet which are compressively sealingly engaged with the water reservoir tank by utilizing the latent heat of extrusion of the extrudate to bond with the exterior surfaces of the inlet and outlet profiles.
    Type: Grant
    Filed: March 6, 2007
    Date of Patent: December 14, 2010
    Assignee: Mercury Plastics, Inc.
    Inventors: William W. Rowley, Grandin A. Rushlander
  • Publication number: 20100025892
    Abstract: A method of making a composite filter media includes, in an exemplary embodiment, forming a nonwoven fabric mat that includes a plurality of synthetic fibers by a spunbond process, and calendering the nonwoven fabric mat with embossing calender rolls to form a bond area pattern comprising a plurality of substantially parallel discontinuous lines of bond area to bond the synthetic fibers together to form a nonwoven fabric, the nonwoven fabric having a filtration efficiency of about 35% to less than 50%, measured in accordance with EN 1822 (1998) test procedure. The method also includes applying a nanofiber layer by electro-blown spinning a polymer solution to form a plurality of nanofibers on at least one side of the nonwoven fabric mat to form the composite filter media, the composite filter media having a minimum filtration efficiency of about 70%, measured in accordance with EN 1822 (1998) test procedure.
    Type: Application
    Filed: August 1, 2008
    Publication date: February 4, 2010
    Inventors: David Charles Jones, Hyun Sung Lim
  • Publication number: 20090056808
    Abstract: A dye-sensitized solar cell having improved photoelectric conversion characteristic includes a metal oxide layer having dye-adsorbed metal oxide nanoparticles, wherein the metal oxide nanoparticles are formed by electrospinning a mixed solution of a metal oxide precursor and a polymer into ultrafine composite fibers, and thermally compressing and sintering the ultrafine composite fibers.
    Type: Application
    Filed: August 27, 2008
    Publication date: March 5, 2009
    Inventors: Seong-Mu JO, Dong-Young Kim, Sung-Yeon Jang, Nam-Gyu Park, Byoung-Hong Yi
  • Patent number: 7485250
    Abstract: A medical device (10) includes a catheter shaft (11) including inner and outer catheter shafts (12 and 14), and an expandable balloon (18) carried by the catheter shaft (11). The balloon (18) is made from an irradiation cross-linked mixture of a polyamide elastomer and at least one additional cross-linking reactant. The polyamide elastomer can be a polyester amide, a polyether ester amide or a polyether amide, and is preferably a nylon block copolymer. The cross-linking reactant can be: (a) a difunctional material, (b) a trifunctional material, (c) a tetrafunctional material, or (d) an aromatic molecule containing at least two ring substituents, each of the ring substituents having labile hydrogens at a benzylic site therein. The cross-linking reactant can also be diallyl phthalate or meta-phenylene dimaleimide. Irradiation is carried out by exposure to an electron beam or to ultraviolet, X- or gamma radiation, preferably at a total fluence of about 0.5 to about 20 megarads.
    Type: Grant
    Filed: June 16, 2003
    Date of Patent: February 3, 2009
    Assignee: Cook Incorporated
    Inventors: Scott E. Boatman, David G. Burton, Michael C. Hoffa, David R. Lessard, David A. Drewes, Jr., Maggie A. Z. Hupcey
  • Publication number: 20080217241
    Abstract: A composite filter media structure is provided. In an exemplary embodiment, the composite filter media structure includes a corrugated base substrate that includes a nonwoven synthetic fabric formed by a dry-laid process that corrugates the base substrate during the forming process. The composite filter media structure also includes a nanofiber membrane deposited on at least one side of the base substrate by an electro-blown spinning process.
    Type: Application
    Filed: August 22, 2007
    Publication date: September 11, 2008
    Inventors: Alan Smithies, Jack T. Clements, Jason Mei, Hyun Sung Lim, David Charles Jones
  • Patent number: 7179521
    Abstract: A multilayer shrink film and methods of making same comprising high speed polyethylenic outer layers along with one or more cyclic-olefin copolymer (COC) containing inner layers. The multilayer shrink films of the invention are produced using film biaxial orienting means, have haze values of 5 or less and Young's modulus of 50,000 psi or greater and superior hot slip properties. In order to achieve the desired modulus, films of the present invention comprise from 10% to 30% COC and from 2% to 25% softening olefin copolymer. Preferably the film comprises large proportion of linear low density polyethylene (LLDPE). Suitable COCs for use in the invention are limited to single site catalyzed COC.
    Type: Grant
    Filed: March 3, 2004
    Date of Patent: February 20, 2007
    Assignee: Central Products Company
    Inventors: Trevor Arthurs, Shane Taghavi
  • Patent number: 6896838
    Abstract: A container made without employing a mold release agent, comprised of halogenated polymeric material provides an extended shelf-life for 1,1-disubstituted ethylene adhesive monomer compositions.
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: May 24, 2005
    Assignee: Closure Medical Corporation
    Inventor: Keith R. D'Alessio
  • Patent number: 6852267
    Abstract: The invention relates to a method for producing tubular containers with an open filling opening and with an end that is provided with a seal. The inventive method comprises the following steps: separately producing a preform with a neck with definitive dimensions and a tubular body with smaller dimensions than the definitive form, the tubular body containing the open filling opening; fixing the preform that is produced to a drawing head by its neck and subjecting it to at least one partial heating process; introducing the heated preform that is attached to the drawing head into the inside of a multi-part closed blow mold in such a way that the open filling opening is air-tightly held at the lower end of the blow mold; fitting a blow nozzle to the filling opening of the preform.
    Type: Grant
    Filed: June 2, 2000
    Date of Patent: February 8, 2005
    Assignee: Aisa Automation Industrielle SA
    Inventor: Gerhard Keller
  • Patent number: 6785455
    Abstract: A dispersion compensating fiber 1 is placed in the form of a coil or bundle within a housing 2, and a filling material 3 having a viscosity of 0.01 Pa·s to 0.6 Pa·s at normal temperature before curing is filled in a space around the dispersion compensating fiber 1 within the housing 2 and then the filling material is cured. As a result, a change of transmission loss caused by a temperature variation due to heat cycles of the dispersion compensator can be reduced. A difference in transmission loss can be further reduced by employing a method of placing the dispersion compensating fiber in the housing in the form of a loosely wound bundle and then pouring the filling material, or a method of applying vibration to the housing, in which the dispersion compensating fiber is placed, when pouring the filling material.
    Type: Grant
    Filed: September 11, 2002
    Date of Patent: August 31, 2004
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Takashi Fujii, Toshifumi Hosoya
  • Patent number: 6709714
    Abstract: The present invention relates to a method of producing high-density polyidimide (HPI) films and its production equipment. The production equipment comprises a raw material supplying means, a vacuum cavity, an energy supplier, a clad laminator, and a baked solidified polymer. The foregoing components constitutes the production equipment, using the monomer with the CONH bond or copolymer as raw materials to extract the unsaturated C═N bond by heat, electrons, light, radiation rays or ions as energy under low-pressure environment, so that the H in vacuum can extract the non-solidified HPI film from the electronic radical covalent polymers and via heat or light to rearrange the structure into a solidified HPI film. By means of the method according to the present invention, the original HPI that is not easily to produce as a film can be easily made in form of a film of HPI polymer on the clad laminator.
    Type: Grant
    Filed: October 23, 2001
    Date of Patent: March 23, 2004
    Inventor: Tien Tsai Lin
  • Patent number: 6599462
    Abstract: A method for manufacturing balloon catheters, and the catheters manufactured thereby. In accordance with the method, a workpiece comprising a tube-within-a-tube is placed within a mold, and a first region of the outer tube is distended into contact with the mold to form a seamless balloon of a desired configuration. The distension of the first region of the outer tube may be facilitated by electron beam irradiation, heating and/or longitudinal drawing of the workpiece concurrently with the introduction of a pressurized fluid into the space between the inner surface of the outer tube and the outer surface of the inner tube so as to exert the required outwardly distending pressure against the first region of the outer tube.
    Type: Grant
    Filed: July 29, 1999
    Date of Patent: July 29, 2003
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventor: Manouchehr Miraki
  • Patent number: 6166099
    Abstract: The melt of polyvinyl aromatic polymers comprising from 10 to 45 weight % of star branched polymer prepared using a combination of thermal and tetra functional peroxide initiation has an improved melt strength permitting better foam formation for extrusion foam blown with conventional blowing agents and inert gases including CO.sub.2.
    Type: Grant
    Filed: April 20, 2000
    Date of Patent: December 26, 2000
    Assignee: Nova Chemicals Inc
    Inventor: Steven M. Krupinski
  • Patent number: 6146892
    Abstract: Methods and compositions are described that provide three-dimensional fibrillar matrices useful as, among other things, structural prosthetics and scaffolds for cells. The porous fibrillar matrices of the present invention have desirable mechanical properties suitable to a variety of applications, including platforms for in vitro cell cultivation, implants for tissue and organ engineering, implants as tendon and facia prosthetics, and product packaging.
    Type: Grant
    Filed: September 28, 1998
    Date of Patent: November 14, 2000
    Assignee: The Regents of the University of Michigan
    Inventors: Peter X. Ma, Ruiyun Zhang
  • Patent number: 6086796
    Abstract: A method is provided for manufacturing a diamond-like carbon (DLC) coated optical phase-change recording medium for use with near-field optical head devices and which exhibits superior wear resistance and improved lifetime. According to the method, the surface of a composite optical phase-change media structure deposited onto a substrate is subjected to ion beam deposition of a DLC over-coat to a thickness of no greater than about 450 .ANG.. Preferably the DLC is ion beam deposited onto the phase-change recording layer at the surface of the medium structure or onto a germanium-containing adhesion-promoting interlayer to achieve the desired adhesion of the DLC to the surface of the medium structure.
    Type: Grant
    Filed: July 2, 1997
    Date of Patent: July 11, 2000
    Assignee: Diamonex, Incorporated
    Inventors: David Ward Brown, Edward George Thear, Leonard Joseph Mahoney, Rudolph Hugo Petrmichl
  • Patent number: 6030476
    Abstract: An insulating container comprising a container body having at least one side wall and a bottom wall with the side wall including a base layer, an insulating layer on at least a portion of the base layer and a printed pattern, mineral oil application or combination thereof on at least a portion of the surface of the insulating layer is disclosed wherein a thickness of the insulating layer is controlled by the printed pattern and/or mineral oil on the selected portion of the insulating layer. Similarly, stock material incorporating the present invention includes a base layer, an insulating layer formed on at least a portion of the base layer and a printed pattern printed on and or mineral oil applied to the insulating layer is disclosed wherein the thickness of the insulating layer is again controlled by the printed pattern and/or mineral oil on the portion of the insulating layer.
    Type: Grant
    Filed: April 11, 1997
    Date of Patent: February 29, 2000
    Assignee: Fort James Corporation
    Inventors: Daniel James Geddes, Michael Andrew Breining, Michael Schmelzer
  • Patent number: 5993922
    Abstract: The present invention generally relates to polymeric compositions capable of providing enhanced crosslinking efficiency, to single and multilayer films having the subject composition contained within at least one layer of said film, to a method of treating said film to provide enhanced crosslink within said at least one layer of the film and to the resultant cross-linked film product as well as articles made from said cross-linked film product.
    Type: Grant
    Filed: March 24, 1997
    Date of Patent: November 30, 1999
    Assignee: Cryovac, Inc.
    Inventors: Robert Babrowicz, William John Gauthier, Charles Robert Morgan, William Peyton Roberts, Drew Ve Speer, Andrew W. Van Putte
  • Patent number: 5976434
    Abstract: Polypropylene (PP) membranes having a hydrophilic surface have been prepared by extracting a fugitive hydrophilic pore-forming agent from a gelled film prepared by evaporating the solvent from a homogeneous solution of isotactic polypropylene, functionalized polypropylene and the fugitive agent in a solvent, such as xylene. Most of the functional groups, such as --OH, --NH.sub.2 and --COOH, in the functionalized polypropylene are located on the surfaces of the membrane, including pore surfaces. The resulting membranes, especially membranes having an asymmetric structure, are useful for ultrafiltration, dialysis and/or microfiltration.
    Type: Grant
    Filed: April 6, 1998
    Date of Patent: November 2, 1999
    Assignee: The Penn State Research Foundation
    Inventor: Tze-Chiang Chung
  • Patent number: 5840139
    Abstract: An insulating container comprising a container body having at least one side wall and a bottom wall with the side wall including a base layer, an insulating layer on at least a portion of the base layer and a printed pattern, mineral oil application or combination thereof on at least a portion of the surface of the insulating layer is disclosed wherein a thickness of the insulating layer is controlled by the printed pattern and/or mineral oil on the selected portion of the insulating layer. Similarly, stock material incorporating the present invention includes a base layer, an insulating layer formed on at least a portion of the base layer and a printed pattern printed on and or mineral oil applied to the insulating layer is disclosed wherein the thickness of the insulating layer is again controlled by the printed pattern and/or mineral oil on the portion of the insulating layer.
    Type: Grant
    Filed: April 11, 1997
    Date of Patent: November 24, 1998
    Assignee: Fort James Corporation
    Inventors: Daniel James Geddes, Michael Andrew Breining, Michael Schmelzer
  • Patent number: 5766711
    Abstract: A composite camel structure includes an elongate hollow, rigid cylindrical core, opposite ends of the core having respective caps sealingly connected thereto, a buoyant material of cured urethane foam substantially filling the core and being sealingly enclosed therein. A cushion is thermally bonded to and sealingly surrounds the core, the cushion having a substantially unbroken outside surface, being formed of a polymeric component consisting of polyethylene being at least 80 percent low-density polyethylene, and a process additive component including an effective amount of an ultraviolet inhibitor. A pair of parallel-spaced, transversely oriented guides extend between opposite sides of the cushion in axially spaced relation to the core, each guide defining a guide opening through the cushion for receiving hawser chains whereby the camel structure rides up and down with the tide.
    Type: Grant
    Filed: August 29, 1996
    Date of Patent: June 16, 1998
    Inventor: Andrew Barmakian
  • Patent number: 5686091
    Abstract: A structurally rigid biodegradable foam scaffold useful for cell transplantation is provided. The foam can be loaded with nutrients and/or drugs that elute from the foam during transplant to promote growth of the cells. The foam, which features a continuous network of pores, is fabricated using a novel method involving phase separation and consequent expansion upon sublimation of a liquid solvent, preferably naphthalene.
    Type: Grant
    Filed: March 28, 1994
    Date of Patent: November 11, 1997
    Assignee: The Johns Hopkins University School of Medicine
    Inventors: Kam W. Leong, Hungnan Lo, Sudhakar Kadiyala
  • Patent number: 5620636
    Abstract: A foam molded product of a synthetic resin having a continuous hardened surface layer formed uniformly on a part or the whole of its surface during its foam-in-place molding and having a desired thickness. A mold and a process which can make such a product without bringing about any substantial change in an ordinary foam-molding operation. A part of foamable resin particles which are fed into the mold for making the product are caused to contact a mold surface heated to or above the melting point of the particles and melt to form a molten resin layer, and the molten resin layer is hardened to form the hardened surface layer.
    Type: Grant
    Filed: August 22, 1995
    Date of Patent: April 15, 1997
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Tamotsu Kawai, Kinzo Masuda, Masao Ando, Fukuzo Imada, Masahiro Chikada
  • Patent number: 5605660
    Abstract: A process for the manufacture of a multilayer, cross-linked, heat shrinkable, polyolefin film, the film having at least one inner layer including a thermoplastic polymer sandwiched between two outer layers including a thermoplastic polymer different from the thermoplastic polymer of the inner layer, including the steps of coextruding the polymers into a tape; cross-linking the tape; and converting the cross-linked tape into a heat shrinkable film by orientation; wherein scrap material produced in the manufacture of the heat shrinkable film is incorporated by recycling the film into the coextrusion step in an amount up to 50% by weight of the total film weight.
    Type: Grant
    Filed: April 20, 1995
    Date of Patent: February 25, 1997
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Livio Buongiorno, Paolo Ciocca
  • Patent number: 5595705
    Abstract: A method of manufacturing a monolayer heat-shrinkable, puncture-resistant biaxially oriented film is disclosed. The method includes a double bubble orientation step and extruding a primary tube that includes at least one substantially linear ethylene homopolymer or interpolymer, wherein the substantially linear ethylene homopolymer or interpolymer has an uniform branching distribution, a melt flow ratio I.sub.10 /I.sub.2, .gtoreq.5.63, and a molecular weight distribution, M.sub.w /M.sub.n, defined by the equation M.sub.w /M.sub.n .ltoreq.(I.sub.10 /I.sub.2)-4.63, and is also characterized as having essentially no linear polymer fraction, a single DSC melting peak, a density greater than about 0.85 g/cc, and a favorable gas extrusion critical shear rate at the onset of surface melt fracture.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: January 21, 1997
    Assignee: The Dow Chemical Company
    Inventors: Kim L. Walton, Rajen M. Patel, Pak-Wing S. Chum, Todd J. Obijeski
  • Patent number: 5591496
    Abstract: A method of making a composite sheet material in which at least one lamina of previously unused expanded polystyrene is bonded to a second lamina of recycled expanded polystyrene. The laminae are continuously formed from separate extruders and are merged promptly after extrusion. Heat is applied to the laminae just before they are merged.
    Type: Grant
    Filed: July 13, 1993
    Date of Patent: January 7, 1997
    Assignee: Linpac Plastics International Limited
    Inventors: Michael C. Anderson, Anthony J. Heap, Horst-Ditmar Grone
  • Patent number: 5591390
    Abstract: A method of manufacturing a multilayer heat-shrinkable, puncture-resistant biaxially oriented film is disclosed. The method includes a double bubble orientation step and extruding a primary tube that includes at least one substantially linear ethylene homopolymer or interpolymer, wherein the substantially linear ethylene homopolymer or interpolymer has an uniform branching distribution, a melt flow ratio, I.sub.10 /I.sub.2,.gtoreq.5.63, and a molecular weight distribution, M.sub.w /M.sub.n, defined by the equation M.sub.w /M.sub.n .ltoreq.(I.sub.10 /I.sub.2)-4.63, and is also characterized as having essentially no linear polymer fraction, a single DSC melting peak, a density greater than about 0.85 g/cc, and a favorable gas extrusion critical shear rate at the onset of surface melt fracture.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: January 7, 1997
    Assignee: The Dow Chemical Company
    Inventors: Kim L. Walton, Rajen M. Patel, Pak-Wing S. Chum, Todd J. Obijeski
  • Patent number: 5552104
    Abstract: A normally solid, high molecular weight, gel-free, irradiated ethylene polymer is characterized by high melt strength due to strain hardening elongational viscosity, which is believed to be caused by free-end long chain branching of the molecular chains forming the polymer. The polymer is prepared by (1) irradiating a normally solid, high molecular weight ethylene polymer without strain hardening elongational viscosity while in the solid state in an environment in which the active oxygen concentration is less than 15% by volume, maintaining the irradiated material in this environment while in the solid state for a specific period of time, and then deactivating free radicals present in the material.
    Type: Grant
    Filed: April 13, 1995
    Date of Patent: September 3, 1996
    Assignee: Montell North America Inc.
    Inventors: Anthony J. DeNicola, Jr., John W. Mayfield, Thomas F. McLaughlin, James R. Beren
  • Patent number: 5512319
    Abstract: The present invention is directed to a method of applying a polyurethane foam to a fabric and the product produced thereof. This method involves (a) coating the fabric with a silicone surfactant dissolved in water, and (b) expanding the polyurethane foaming mixture in contact with the coated portion of the fabric.
    Type: Grant
    Filed: August 22, 1994
    Date of Patent: April 30, 1996
    Assignee: BASF Corporation
    Inventors: John H. Cook, Egils Grinbergs
  • Patent number: 5273597
    Abstract: A trim member for use as an interior furnishing in a motor vehicle includes a covering sheet including one surface having an embossed pattern, a first foamed body disposed on the other surface of the covering sheet, with a first component embedded partly in the first foamed body, and a second foamed body disposed on the other surface and/or the first foamed body, with a second component partly embedded in the second foamed body. The covering sheet, the first foamed body, and the second foamed body are integrally formed as a unitary construction. Since the trim member is constructed as an integral unitary assembly, it does not squeak while the motor vehicle is running, and does not have visible steps and joints on its outer surface.
    Type: Grant
    Filed: November 25, 1992
    Date of Patent: December 28, 1993
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Shuno Kumagai, Tamio Furuya, Eiji Tuyuki, Yoshitsugu Nishi, Nozomu Hama, Takaaki Sato, Akihiko Koshiro, Shingo Noguchi, Hitoshi Nakazawa
  • Patent number: 5265558
    Abstract: An improved method of manufacturing a basic structure for an animal bed and the article of manufacture resulting from the process are disclosed. The bed structure has a bottom wall and side walls. Chemical components for a foamable polyurethane base are mixed. Then the foamable base is placed in a mould which has the shape of the animal bed. The foam is cured for forming a one-piece integral foam bed structure which has a liquid-impermeable closed pore skin formed thereon. Then the structure is removed from the mould and may be covered with any desired fabric.
    Type: Grant
    Filed: May 19, 1992
    Date of Patent: November 30, 1993
    Inventor: Thomas Schonrock
  • Patent number: 5188777
    Abstract: There are disclosed opaque, biaxially oriented polymeric film structures each comprising a thermoplastic polymer matrix material, e.g., polypropylene, within which is located a stratum of voids, and positioned within each of at least a substantial number of the voids is at least one spherical void-initiating solid particle (i.e., a cavitating agent) of cross-linked polystyrene (CLPS) which is phase-distinct and incompatable with the matrix material, the volume of the particle being substantially less than the volume of the void, with one generally cross-sectional dimension of the particle at least approximating a corresponding cross-sectional dimension of the void.Also disclosed is a method of preparing the foregoing film structure by extruding into a film a combination of the matrix material and CLPS particles dispersed therein, and biaxially orienting the film either simultaneously or sequentially.
    Type: Grant
    Filed: July 15, 1992
    Date of Patent: February 23, 1993
    Assignee: Mobil Oil Corporation
    Inventors: Burdette L. Joesten, Tien-Kuei Su
  • Patent number: 4801380
    Abstract: The present invention relates to a method of producing micropores having diameters of less than 20 nanometers in straight sides in silicon film. The silicon film produced by this process may be attached to a substrate material and used as a filter in molecular separation processes.
    Type: Grant
    Filed: December 23, 1987
    Date of Patent: January 31, 1989
    Assignee: The Texas A&M University System
    Inventors: Donald L. Parker, Kenneth R. Hall, James C. Holste
  • Patent number: 4761307
    Abstract: The present invention is directed to a process for the production of optionally foamed polyurethanes which are combined or fabricated with another material, comprising reacting compounds with molecular weights from 400 to 10,000 containing at least 2 isocyanate reactive hydrogen atoms with polyisocyanates in the presence of catalysts containing tertiary amino groups and combining or fabricating the resulting polyurethane with another material, characterized in that the catalysts used are diffusion resistant aminoalkanols corresponding to the general formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 may be identical or different and represent hydrogen or a C.sub.1 -C.sub.6 alkyl group,R.sup.5, R.sup.6, R.sup.7 and R.sup.8 may be identical or different and represent a C.sub.1 -C.sub.6 alkyl group or together form a C.sub.2 -C.sub.6 alkylene group which may contain hetero atoms such as O or NR (R=C.sub.1 -C.sub.4 alkyl), and n and m may be identical or different and represent integers from 1 to 6.
    Type: Grant
    Filed: January 8, 1986
    Date of Patent: August 2, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventors: Peter Haas, Hans-Albrecht Freitag, Geza Avar
  • Patent number: 4704130
    Abstract: A microporous biocompatible material is formed by preparing a segmented polyether urethane urea solution containing 25%.+-.1.5% solids dissolved in a solvent. The solution has sufficient viscosity to be preshaped and formed into the desired thickness of the finished article, then immediately immersed into a precipitation bath in which the solvent in the solution is miscible for a time interval sufficient to cause the solution to set up into an opaque elastomeric article. The article is immediately removed from the bath, any excess solvent extracted and then dried at a temperature on the order of 35.degree. C. to 70.degree. C. followed by heat treating by annealing for approximately sixty minutes at a temperature at 100.degree. C. to 130.degree. C. The void volume of the membrane solution is controlled to within the 50% to 80% range and the pore size from ca <0.1 to several mms.
    Type: Grant
    Filed: October 18, 1985
    Date of Patent: November 3, 1987
    Assignee: Mitral Medical, International, Inc.
    Inventors: D. Keith Gilding, Andrew M. Reed, Ian N. Askill, Stephen G. Briana
  • Patent number: 4701473
    Abstract: Amine catalysts useful for producing polyurethane foams coated with skin by reaction of an organic polyisocyanate with a polyol. The catalysts comprise 4-methyl-1-(2-hydroxyalkyl)-piperazine, and emit no bad odor, give excellent moldability and are free from deterioration of skin and discoloration of covering materials.
    Type: Grant
    Filed: June 23, 1986
    Date of Patent: October 20, 1987
    Assignee: Toyo Soda Manufacturing Co., Ltd.
    Inventors: Masazumi Hasegawa, Shoji Arai, Shinya Mizoe
  • Patent number: 4652495
    Abstract: A resilient coat for a direct connection-type tie (Danchoku tie) which is composed of a concrete tie body and a microcellular polyurethane elastomer coating layer which adheres to and coats the lower portion of the tie body to form an integral body therewith, and said microcellular polyurethane elastomer having urethane bonds and a bulk density of 0.4-0.75 g/cm.sup.3 and being prepared from the starting foamable liquid of urethane elastomer composed substantially of (a) a polyether polyol having an average number of functional groups of 2.5-4.5 and a number average molecular weight of 2000-8500, (b) a vinyl monomer-grafted polyol having an average number of functional groups of 2.5-4.0, and the graft ratio of 4-20% by weight, (c) a liquid polybutadiene polyol having hydroxyl terminal group(s), an average number of functional groups of 2.0-3.
    Type: Grant
    Filed: January 31, 1986
    Date of Patent: March 24, 1987
    Assignees: Japanese National Railways, Nisshinbo Industries, Inc.
    Inventors: Yoshihiko Sato, Fujio Ohishi, Tatsuya Hongu, Toshio Suzuki, Yoshihiko Ogawa
  • Patent number: 4644733
    Abstract: Loose fill packing material comprising a plurality of expanded, resilient, thermoplastic dunnage particles, which particles are rendered more effective by coating an outer surface thereof with an additive which additive results in the packing material having improved cushioning properties and reduces the tendency of articles to migrate through the dunnage particles, wherein the particles have an average maximum cross-sectional dimension of at least 0.5 inch.
    Type: Grant
    Filed: January 16, 1986
    Date of Patent: February 24, 1987
    Assignee: The Dow Chemical Company
    Inventor: Blair E. Dolinar
  • Patent number: 4435344
    Abstract: A heat-insulating paper container having good heat-insulating property which can be prepared easily at low cost is disclosed. The paper container is prepared by heating a paper container comprising a body member and a bottom member, wherein one surface of at least the container body member is coated or laminated with a thermoplastic synthetic resin film and the other surface of the body member is coated or laminated with the same or different thermoplastic synthetic resin film or an aluminum foil, to thereby foam the thermoplastic synthetic resin film and form a heat-insulating layer on at least one surface of the container.
    Type: Grant
    Filed: December 29, 1981
    Date of Patent: March 6, 1984
    Assignee: Nihon Dixie Company, Limited
    Inventor: Akira Iioka
  • Patent number: 4390584
    Abstract: A composite structure for absorbing sound energy, comprising an outer porous layer covering a cellular layer, wherein said porous layer is made by forming a supple loose fabric from slivers each constituted by a plurality of relatively free mineral or synthetic fibres, substantially parallel to one another and shaping said supple fabric to its final form and rendering it rigid by means of a hardenable resin, while being subjected to pressure so as to become a thin, rigid lattice, with wide crossed lines, virtually uniformly smooth on at least its face opposite said cellular layer.
    Type: Grant
    Filed: January 21, 1981
    Date of Patent: June 28, 1983
    Assignee: Societe Nationale Industrielle Aerospatiale
    Inventor: Guy Briens
  • Patent number: 4252855
    Abstract: Surface-modified cellulose acetate filaments having a microporous structure located in the peripheral surface layer thereof are prepared by bringing non-modified cellulose acetate filaments which have an average degree of acetylation of 50 to 62% into contact with an organic solvent which is capable of dissolving or swelling the non-modified filaments and by rapidly evaporating the solvent from the filaments. The microporous structure causes the surface-modified filaments to exhibit a desirable silklike touch and an increased intensity in dye exhaustion of from 1.1 to 2.0 times that of the non-modified filaments.
    Type: Grant
    Filed: December 7, 1978
    Date of Patent: February 24, 1981
    Assignees: Mitsubishi Acetate Co., Ltd, Mitsubishi Rayon Co., Ltd.
    Inventors: Ryohei Noguchi, Seigi Suzuki, Yutaka Maeda, Koichi Minami
  • Patent number: 4202716
    Abstract: A lightweight wall covering and method of making same are provided wherein such wall covering has a substantially smooth inside surface and a textured outer layer comprised of a substrate having an exposed surface defining the inside surface, a fluid impervious film bonded against the substrate, and an embossed expanded vinyl plastisol bonded against the film and defining the textured outer layer with the textured outer layer being defined by alternating recesses and dense projections substantially free of air spaces and with the textured outer layer having a substantially fluid impervious skin.
    Type: Grant
    Filed: March 21, 1979
    Date of Patent: May 13, 1980
    Assignee: Dayco Corporationp
    Inventor: Charles A. Roman
  • Patent number: 4190712
    Abstract: An impact energy-absorbing, low density urethane foam for use in automobile bumpers has good moldability and is relatively temperature insensitive, i.e. gives approximately the same physical performance over a wide range of temperatures. This foam is characterized by its good multiple impact performance and low compression set values. The foam is water blown in a closed mold from a quasi-prepolymer system. The molded density is preferably in the range of 5 to 10 PCF.The foam formulation is based on a polymer polyol of a poly (oxypropylene/ethylene) triol reacted with a styrene/acrylonitrile monomer mixture which triol thus modified is reacted with (1) a roughly 1/5 to 1.5/1 weight amount of a hydroxy terminated polybutadiene homopolymer based on polymer polyol, (2) a 50 to 150 equivalent weight polyol crosslinker of 2 to 6 functionality, (3) a MDI glycol or triol quasi-prepolymer, and (4) some water.
    Type: Grant
    Filed: August 25, 1978
    Date of Patent: February 26, 1980
    Assignee: McCord Corporation
    Inventor: Kirby E. L. Flanagan