Patents Examined by Paul Thibodeau
  • Patent number: 6440551
    Abstract: Composite film structures exhibit a predetermined finished color tone comprised of a transparent film layer which exhibits a color deficiency as compared to the finished color tone, and a pigment which is visually associated with, and satisfies the color deficiency of, the film layer. Most preferably, the pigment is provided as a homogenous dispersion in a transparent color-matching layer positioned adjacent to the film layer. Thus, when the film and color-matching layers are viewed collectively as a unit, the perceived color tone will be that of the finished predetermined color tone. That is, the color-matching layer provides visually an additive effect on the perceived color of the composite film structure.
    Type: Grant
    Filed: June 14, 1999
    Date of Patent: August 27, 2002
    Assignee: CPFilms, Inc.
    Inventors: James P. Enniss, Steven A. Barth, Mary E. Lawless, Anthony B. Port, Elizabeth J. Packer
  • Patent number: 6436481
    Abstract: The present invention describes coated articles and methods for preparing such articles, wherein the primary coating comprises a plasma-induced polymer carrying reactive groups. The invention further relates to the reaction of said primary coatings carrying reactive groups with monomeric, oligomeric or macromolecular compounds of synthetic, semisynthetic or biological origin to provide hybrid-type coated articles (secondary coatings).
    Type: Grant
    Filed: June 22, 1999
    Date of Patent: August 20, 2002
    Assignee: Novartis AG
    Inventors: Peter Chabrecek, Dieter Lohmann
  • Patent number: 6436525
    Abstract: Described are articles having a polyanhydride photochromic coating. The coatings exhibit a Fischer microhardness of from 50 to 130 Newtons per mm2 and desirable photochromic properties, i.e., the formation of darker activated colors and faster rates of photochromic activation and fade when irradiated with ultraviolet light. Also described are polyanhydride photochromic articles.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: August 20, 2002
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Cletus N. Welch, Robert W. Walters, Shanti Swarup
  • Patent number: 6436544
    Abstract: The invention concerns composite metallized polyester films with good barrier properties relative to gases. More precisely, it concerns a biaxially drawn composite metallized film based on polyester and having improved barrier properties to gases, characterized in that the composite comprises a polyester film base of 5 &mgr;m to 50 &mgr;m, directly coated on one of its two faces with a layer including a mixture of a polyvinyl alcohol which has an average degree of polymerization in number equal to or in excess of 350 and a water-dispersible copolyester with sulphonyloxy residues, the layer including the polyvinyl alcohol and the water-dispersible copolyester being in turn coated with a metal layer, the composite film exhibiting a permeability to oxygen, measured at 23° C. under 50% relative humidity, equal to or lesser than 0.4 cm3/m2/24 h. The composite metallized polyester films have, besides their barrier properties, excellent resistance to mechanical stresses, such as in particular crumpling.
    Type: Grant
    Filed: March 16, 2000
    Date of Patent: August 20, 2002
    Assignee: Toray Plastics Europe S.A.
    Inventors: Didier Veyrat, Eric Maitre
  • Patent number: 6432562
    Abstract: High areal density magnetic recording media exhibiting high magnetic performance, e.g., narrow PW50, and high OW, and high SNR, are formed with a NiAlRu seedlayer. Embodiments of the present invention include sputter depositing a NiAlRu seedlayer on a non-magnetic substrate and sequentially depositing thereon a Cr or Cr alloy underlayer, e.g., CrMo, CrMn, CrV or CrW, a magnetic layer, e.g., a Co—Cr-containing magnetic alloy layer, and a protective overcoat, e.g., a carbon-containing protective overcoat.
    Type: Grant
    Filed: September 10, 1999
    Date of Patent: August 13, 2002
    Assignee: Seagate Technology LLC
    Inventors: Stella Z. Wu, Qixu Chen, Samuel D. Harkness, IV, Rajiv Y. Ranjan
  • Patent number: 6432542
    Abstract: The present invention provides halopolymer-containing multicomponent structures comprising at least one halopolymer layer and at least one adhesive layer. The adhesive layer comprises a base polymer having at least one functional moiety selected from the group consisting of unsaturated acids and anhydrides thereof, amines and epoxy compounds, wherein said adhesive layer has an ASTM D-2240 shore hardness number of less than about 25 in the D scale and less than about 75 in the A scale. Multicomponent structures such as films, tubing, sheet and injection molded and blow molded articles prepared with these adhesives exhibit superior adhesion as well as the excellent barrier properties typically associated with halopolymer-containing multicomponent structures. A method of improving the adhesion of halopolymers is disclosed as well.
    Type: Grant
    Filed: September 28, 1998
    Date of Patent: August 13, 2002
    Assignee: AlliedSignal Inc.
    Inventor: Mingliang Lawrence Tsai
  • Patent number: 6432510
    Abstract: A fluorinated resin having enhanced wettability to water prepared by roughening a surface of the fluorinated resin such that a central line roughness average (Ra) of the surface is increased to at least 0.1 &mgr;m, and then depositing thereon a thin hydrophilic film while maintaining the central line roughness average (Ra) of at least 0.1 &mgr;m, the thin hydrophilic film being formed from a hydrophilic substance having a contact angle of water of less that 90°, and the resulting fluorinated resin having up to 20° of contact angle of water. The fluorinated resins are able to maintain high hydrophilicity even after prolonged exposure to the atmosphere and can be used in various fields that require bio-compatibility and in permeable membranes or filters.
    Type: Grant
    Filed: November 10, 1999
    Date of Patent: August 13, 2002
    Assignee: Samyang Corporation
    Inventors: Sung Ryong Kim, Sung Chul Park, Jun Seob Song
  • Patent number: 6428856
    Abstract: A method is provided of forming multilayer coating films having a high quality appearance while controlling interfacial bleeding or inversion between coating film layers otherwise found when a water-borne intermediate coating film and a water-borne metallic coating film are formed in that order. The method comprising forming coating films one after another on a substrate, namely forming an intermediate coating film using a water-borne intermediate coating, a metallic base coating film using a water-borne metallic base coat and a clear coating film using a clear coat, wherein said water-borne intermediate coating and/or said water-borne metallic base coat contains a polycarbodiimide compound and a carboxyl-containing aqueous resin.
    Type: Grant
    Filed: May 1, 2000
    Date of Patent: August 6, 2002
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Kazuaki Masuda, Tsuyoshi Harakawa, Teruaki Kuwajima, Yutaka Takeuchi
  • Patent number: 6428882
    Abstract: A biaxially oriented polyester film is disclosed which has a base layer of at least 80% by weight of a thermoplastic polyester, and which has a cover layer and, located on the cover layer, a layer functioning as an O2 barrier, wherein said cover layer is composed of a polymer or of a mixture of polymers which comprises at least 40% by weight of ethylene 2,6-naphthalate units; 0% up to 40% by weight of ethylene terephthalate units; and, if desired, up to 60% by weight of units from other aliphatic, cycloaliphatic or aromatic diols and/or aliphatic, cycloaliphatic or aromatic dicarboxylic acids; with the proviso that the Tg2 value of the polyester film is above the Tg2 value of the base layer but below the Tg2 value of the cover layer. The film has particularly low atmospheric oxygen transmission and has high gloss. It is particularly suitable for packaging light- and air-sensitive foodstuffs and other light- and air-sensitive consumable items, and also for producing insulating materials.
    Type: Grant
    Filed: May 14, 1998
    Date of Patent: August 6, 2002
    Assignee: Mitsubishi Polyester Film GmbH
    Inventors: Herbert Peiffer, Cynthia Bennett, Gottfried Hilkert, Werner Roth
  • Patent number: 6428886
    Abstract: A method for fabricating an object to attenuate thermal sensation when handling the object at non-body temperature, and an object fabricated in accord with the method. There is first provided a substrate which has a first surface subject to handling. There is then formed upon the first surface of the substrate a coating. The coating has an optimal density, an optimal thermal conductivity and an optimal thickness such that when the substrate having the coating formed thereupon is equilibrated at a non-body temperature differing from a body temperature and the coating is subsequently contacted with a body at the body temperature during handling, the temperature of the surface of the coating at a contact point of the body with the coating changes precipitously to a temperature near the body temperature and subsequently returns towards the non-body temperature at a rate which permits handling of the coating at the location of the first surface of the substrate by the body with attenuated thermal sensation.
    Type: Grant
    Filed: November 7, 1997
    Date of Patent: August 6, 2002
    Assignee: International Business Machines Corporation
    Inventors: David Andrew Lewis, Lawrence Shungwei Mok
  • Patent number: 6426157
    Abstract: The present invention provides a perpendicular magnetic recording medium 11 having a perpendicular magnetization film 22 formed on a substrate 20, wherein a high perpendicular orientation film 24 having higher perpendicular orientation than that of the perpendicular magnetization film 22 is formed over or/and under the perpendicular magnetization film 22.
    Type: Grant
    Filed: August 3, 1999
    Date of Patent: July 30, 2002
    Assignee: NEC Corporation
    Inventors: Hirotaka Hokkyo, Shinzo Tsuboi, Katsumichi Tagami
  • Patent number: 6423412
    Abstract: The invention is embodied in an electrical device which includes at least a layer of a ferroelectric polyvinylidine fluoride polymer that has been processed to exhibit an electrostrictive strain of 4% or more when an electric field gradient of 50 megavolts per meter or greater is applied thereacross. The processing of the polymer preferably involves subjecting it to either electron beam radiation or gamma radiation. The polyvinylidine flouride polymer is selected from the group of: polyvinylidine fluoride, polyvinylidine fluoride-trifluoroethylene P(VDF-TrFE), polyvinylidine fluoride tetrafluoroethylene P(VDF-TFE), polyvinylidine fluoride trifluoroethylene-hexafluoropropylene P(VDF-TFE-HFE) and polyvinylidine fluoride-hexafluoropropylene P(VDF-HFE).
    Type: Grant
    Filed: November 18, 1998
    Date of Patent: July 23, 2002
    Assignee: The Penn State Research Foundation
    Inventors: Qiming Zhang, Vivek Bharti
  • Patent number: 6423431
    Abstract: In a magnetic recording medium such as a magnetic disk which has a multilayer structure including a supporting substrate, at least one underlayer supported by the substrate, and a magnetic layer overlying the underlayer, magnetic and parametric performance of the recording layer is enhanced by providing an underlayer comprising a chromium-aluminum ternary alloy (Cr—Al—X). The aluminum in the Cr—Al—X alloy is 0.5%-4.0% by atomic weight. A second underlayer of chromium or chrome alloy can be provided under the first underlayer in a multilayer structure.
    Type: Grant
    Filed: May 30, 2000
    Date of Patent: July 23, 2002
    Assignee: Maxtor Corporation
    Inventors: Bunsen Y. Wong, Ji Feng Ying
  • Patent number: 6420041
    Abstract: A skin layer of a thermoplastic polymer includes an additive to promote metal adhesion to the surface of this layer. This additive is one or more compounds of the formula, R-X, where R is an aliphatic hydrocarbyl group having an average of from 20 to 200 carbon atoms and X is a polar group, such as —COOH or —CH2OH. The film may be biaxially oriented and include a polypropylene core layer. The film may be metallized with an appropriate metal, such as aluminum. A heat sealable skin layer may be provided on the opposite side of the film from the metallizable skin layer.
    Type: Grant
    Filed: December 20, 1999
    Date of Patent: July 16, 2002
    Assignee: ExxonMobil Oil Corporation
    Inventors: Moris Amon, Eldridge M. Mount, III, Francis Tran
  • Patent number: 6420035
    Abstract: A metal material subjected to a treatment for seizure prevention is provided. The metal material includes a metal base material and a film formed thereon, the film being composed of a carbodiimide group-containing resin obtained from an aromatic polyisocyanate or of a mixture of said carbodiimide group-containing resin and a lubricant. A method for producing a metal material subjected to a treatment for seizure prevention is also provided. The method includes coating, on a metal base material, a carbodiimide group-containing resin obtained from an aromatic polyisocyanate or a mixture of said carbodiimide group-containing resin and a lubricant, and then subjecting the coated metal base material to a heat treatment at a temperature of 120° C. or higher.
    Type: Grant
    Filed: April 11, 2000
    Date of Patent: July 16, 2002
    Assignees: Nisshinbo Industries, Inc., Takenaka Seisakusho Co., Ltd
    Inventors: Satoshi Amano, Norimasa Nakamura, Shoji Kuroyama
  • Patent number: 6420058
    Abstract: The invention aims to prevent inadvertent rewriting or erasure of servo information in a patterned medium based on the perpendicular recording mode. The magnetic recording medium of the invention includes recording tracks each having an array of unit minute recording portions of a magnetic material separated by non-recording portions of a nonmagnetic material. The recording tracks include data regions and servo regions. The unit minute recording portions in the data regions have substantially the same surface area as the unit minute recording portions in the servo regions. The invention satisfies ARS/ARD≧1.5 provided that the unit minute recording portion has an aspect ratio which is the thickness divided by the square root of the surface area, the unit minute recording portion in the data region has an aspect ratio ARD, and the unit minute recording portion in the servo region has an aspect ratio ARS.
    Type: Grant
    Filed: February 18, 2000
    Date of Patent: July 16, 2002
    Assignee: TDK Corporation
    Inventors: Susumu Haratani, Tsutomu Aoyama
  • Patent number: 6420032
    Abstract: An adhesion promoting layer is formed between a transparent substrate and a metal oxide layer to prevent the metal oxide layer from delaminating from the substrate. Preferably, the substrate is a transparent polycarbonate, the adhesion promoting layer is a thin, transparent Al or Ag layer, and the metal oxide layer is ZnO, AZO or IZO UV radiation absorption layer. The layers are preferably deposited by arc plasma deposition or by sputtering.
    Type: Grant
    Filed: March 17, 1999
    Date of Patent: July 16, 2002
    Assignee: General Electric Company
    Inventor: Charles Dominic Iacovangelo
  • Patent number: 6420033
    Abstract: A film comprising at least one layer of fluorine polymers and poly(meth)acrylates is prepared by (i) preparing a mixture of fluorine polymer and poly(meth)acrylate; and (ii) extruding the mixture maintained below its gel-forming temperature through the die of an extruder having a filter placed before entry of the mixture into the die, the temperature of the die being maintained higher than the temperature of the composition upon entry into the die but lower than the gel-forming temperature of the mixture, onto a roll having a temperature ≦100° C., thereby forming the at least one layer in the shape of a film.
    Type: Grant
    Filed: January 6, 1999
    Date of Patent: July 16, 2002
    Assignee: Roehm GmbH & Co. KG
    Inventors: Uwe Numrich, Bernhard Schaefer
  • Patent number: 6420010
    Abstract: The invented film comprises a layer A composed of a copolyester A, a layer B composed of a copolyester B, and a layer C composed of copolyester C. Layer A is laminated to one side of the layer B. Layer C is laminated to the other side of Layer B. Copolyester A contains 0-15 wt % of rutile titanium oxide (average particle diameter 0.1-0.5 &mgr;m). Copolyester B contains 10-50 wt % of the rutile titanium oxide. Copolyester C contains 0-15 wt % of the rutile titanium oxide. Each of Copolyester A, B, and C has a melting point of 210-245° C. The intrinsic viscosity (&eegr;A) of the polymer part of copolyester A, the intrinsic viscosity (&eegr;B) of the polymer part of copolyester B, and the intrinsic viscosity (&eegr;C) of the polymer part of copolyester C satisfy the following relationship. 0.46≦&eegr;B≦0.66, |&eegr;A-&eegr;B|<0.15, |&eegr;C-&eegr;B|<0.15, and |&eegr;A-&eegr;C|<0.15.
    Type: Grant
    Filed: June 4, 1998
    Date of Patent: July 16, 2002
    Assignee: Teijin Limited
    Inventors: Tetsuya Hasegawa, Hirofumi Murooka, Koji Kubo, Tetsuo Yoshida
  • Patent number: 6416866
    Abstract: There is provided a molded product comprising: a molded substrate comprising a polyolefin resin and an ethylene-propylene rubber; a chlorinated polyolefin resin layer laminated onto the molded substrate, the chlorinated polyolefin resin layer being in contact with the molded substrate; and a surface layer of a thermoplastic resin layer laminated as an outermost layer onto the chlorinated polyolefin resin layer either directly or through other layer(s).
    Type: Grant
    Filed: November 29, 1999
    Date of Patent: July 9, 2002
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Hiroyuki Atake, Hajime Takeuchi