Patents Examined by Melanie Bissett
  • Patent number: 6797789
    Abstract: This invention relates to the process of preparation and application of a plural component, fast cure phenolic/polyurea elastomer coating co-polymer system. The disclosed coating system is prepared from the reaction of an isocyanate component and an amine terminated resin blend component. Each of the two components may individually or both contain a phenolic resin based product as part of the active hydrogen donation for the reaction with the isocyanate. These phenolic/polyurea co-polymers are characterized as having significantly improved chemical resistance and lower moisture vapor transmission through the coating system over conventional polyurea elastomer coating systems, thus making the coatings suitable for highly corrosive environments.
    Type: Grant
    Filed: October 19, 2001
    Date of Patent: September 28, 2004
    Assignee: Visuron Technologies, Inc.
    Inventors: Thomas E. Davis, Dudley J. Primeaux, II
  • Patent number: 6797383
    Abstract: A synthetic resin laminate having both phtochromism characteristic and polarization characteristic consisting essentially of two transparent synthetic resin layers, a resin layer having phtochromism characteristic and a resin layer having polarization characteristic interposed between said two transparent synthetic resin layers and an adhesive layer to adhere said resin layer having polarization characteristic to said one transparent synthetic resin layer, wherein said one transparent synthetic resin layer to contact said resin layer having phtochromism characteristic has a thickness of 50 &mgr;m or above and a retardation value of 150 nm or below, or 3000 nm or above.
    Type: Grant
    Filed: June 11, 2001
    Date of Patent: September 28, 2004
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Chiharu Nishizawa, Kenji Kouno
  • Patent number: 6797737
    Abstract: This invention relates to crosslinked polymer foam compositions of an ethylene vinyl acetate copolymer, an acid copolymer or ionomer, and a crosslinking agent. Such compositions exhibit enhanced melt strength, as well as lower density and compression set. They are especially useful as midsoles or insoles for footwear.
    Type: Grant
    Filed: June 23, 2000
    Date of Patent: September 28, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Chin-Fu Hsu, Richard T. Chou, Wayne C. Whelchel, Yun-Tong Ou
  • Patent number: 6797393
    Abstract: A gelatin-based substrate for fabricating protein arrays, the substrate containing: gelatin and a trifunctional compound A—L—B; wherein A is a functional group capable of interacting with the gelatin; L is a linking group capable of interacting with A and with B; and B is a functional group capable of interacting with a protein capture agent. A may be the same or different from B.
    Type: Grant
    Filed: November 30, 2001
    Date of Patent: September 28, 2004
    Assignee: Eastman Kodak Company
    Inventors: Tiecheng A. Qiao, Krishnan Chari, Thomas L. Penner, Zhihao Yang
  • Patent number: 6797215
    Abstract: The present invention relates to membranes including an urethane including a polyester polyol, wherein the membrane has a gas transmission rate of 15.0 or less for nitrogen gas wherein the membrane has an average thickness of approximately 20.0 mils. Under certain embodiments, the membranes include blends of one or more polyester polyol based thermoplastic urethanes and one or more barrier materials. The membranes can be employed in a variety of applications and can be used as either monolayers or multi-layered laminates.
    Type: Grant
    Filed: September 27, 2001
    Date of Patent: September 28, 2004
    Assignee: Nike, Inc.
    Inventors: Henry W. Bonk, David Goldwasser
  • Patent number: 6794039
    Abstract: A flame retardant resin coating which comprises a flame retardant base resin and a transparent resin top layer. The base resin is selected from the group consisting of polyester, polyether, epoxy, polyurethane, and acrylic acrylates, melamine acrylates, and silicone (meth)acrylates and comprises color pigments and flame retardant additives. The base resin further comprises color pigments and at least one flame retardant additive ranging from about 2.5 to about 50% by weight, based on the weight of base resin. The flame retardant additive is preferably selected from the group consisting of melamine polyphosphates, melamine pyrophosphates, ammonium polyphosphates, and mixtures thereof. Furthermore, the transparent resin comprises at least one sterically hindered amine.
    Type: Grant
    Filed: June 11, 2001
    Date of Patent: September 21, 2004
    Assignee: Trespa International, B.V.
    Inventor: Robert Huusken
  • Patent number: 6794048
    Abstract: A multilayer composite comprising the following layers bound directly to one another: I. a layer I of a polyamide molding composition; II. a layer II of a bonding agent comprising at least 50% by weight of a mixture of a) from 30 to 70 parts by volume of polyamide and b) from 70 to 30 parts by volume of polyolefin, where the sum of the parts by volume is 100 and in addition at least some of the polyamide is present either in the form of a polyamide-polyolefin graft copolymer or as a highly branched polyamine-polyamide copolymer; III. if desired a layer III of a polyolefin molding composition, displays good adhesion between layers which remains largely intact even on prolonged contact with alcohol-containing or aqueous media at elevated temperature.
    Type: Grant
    Filed: December 26, 2001
    Date of Patent: September 21, 2004
    Assignee: Degussa AG
    Inventors: Guido Schmitz, Harald Haeger
  • Patent number: 6794066
    Abstract: The invention relates to coated optical elements, coatings therefor and methods of producing such coatings, the coatings having improved characteristics of adhesion and of resistance to abrasion. In a preferred embodiment the coating includes a plurality of superimposed layers, namely: a hardcoat layer, a thin adhesion layer, a first dielectric layer including a material having a high refraction index selected from the group comprising: CrxOy, TiO2, ZnSe, ZnS and mixtures thereof, wherein x is a number comprised between 1 and 2 and y is a number comprised between 1 and 3; and a second dielectric layer having a refraction index lower than the refraction index of the second material.
    Type: Grant
    Filed: April 16, 2002
    Date of Patent: September 21, 2004
    Assignee: Sola International Holdings, Limited
    Inventors: Marco Macchi, Sabrina Malnati, Brandon Yip
  • Patent number: 6794030
    Abstract: The invention is directed toward a heat conductive sheet that has flexibility, can follow a specific shape such as ruggedness and curvature, which can therefore insure high adhesion and, at the same time, excellent heat releasing property, is free from the occurrence of wrinkle and rupture or elongation, even when the thickness is decreased, and is excellent in formability of sheet formation and in bonding work. Such heat conductive sheet includes a substrate and a heat conductive resin layer applied to at least one surface of the substrate, wherein the heat conductive resin layer is constituted as to contain a binder resin and a heat conductive filler dispersed in the binder resin.
    Type: Grant
    Filed: December 19, 2000
    Date of Patent: September 21, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Mitsuhiko Okada, Tomoaki Uchiya
  • Patent number: 6790537
    Abstract: Composite elements have the following layer structure: (i) from 2 to 20 mm of metal, (ii) from 10 to 300 mm of polyisocyanate polyaddition products obtainable by reacting (a) isocyanates with (b) compounds which are reactive toward isocyanates in the presence of from 1 to 50% by volume, based on the volume of the polyisocyanate polyaddition products, of at least one gas (c) and also, if desired, (d) catalysts and/or (f) auxiliaries and/or additives, (iii) from 2 to 20 mm of metal.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: September 14, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Thomas Bartz, Georg Knoblauch, Heike Wild, Heinz Forster, Jürgen Mertes, Hans-Juergen Reese, Mathäus Rank, Karl-Werner Hohl
  • Patent number: 6790391
    Abstract: Scrap material having both a thermoplastic polyurethane and a copolymer of ethylene and vinyl alcohol is recycled by blending the scrap material into a thermoplastic polyurethane composition and preparing a barrier membrane from theblended material. The virgin thermoplastic polyurethane and the thermoplastic polyurethane of the scrap material are polymerized using at least about 60 percent by weight, based on the weight of the polyurethane produced, of a polyester diol having a weight average molecular weight of at least about 500 and having from four to five carbon atoms between substantially all of the ester [—O—C(═O)—] groups. The blend material containing the virgin thermoplastic urethane and the scrap material is formed into a layer of a barrier membrane. The resulting membrane has a haze of no more than about 12%.
    Type: Grant
    Filed: March 7, 2002
    Date of Patent: September 14, 2004
    Assignee: Nike International, Ltd.
    Inventor: Richard L. Watkins
  • Patent number: 6790870
    Abstract: A method of producing a foamed material comprises contacting a mixture comprising a first thermoplastic polymer and a second thermoplastic polymer with a blowing agent, wherein the first thermoplastic polymer has a higher percent crystallinity that the second thermoplastic polymer; and subjecting the mixture to conditions sufficient to create a thermodynamic instability in the blend foam the mixture, wherein the mixture comprising the first and second thermoplastic polymers has a percent crystallinity lower than the first thermoplastic polymer.
    Type: Grant
    Filed: March 1, 2000
    Date of Patent: September 14, 2004
    Assignees: North Carolina State University, The University of North Carolina at Chapel Hill
    Inventors: Joseph M. DeSimone, Saad A. Khan, Joseph R. Royer, Richard J. Spontak, Teri Anne Walker, Yvon J. Gay, Srinivas Siripurapu
  • Patent number: 6783865
    Abstract: Surface modified solid polyethylene and high density polyethylene products, together with compositions and methods for producing these products, are provided. Polymer coatings comprising vinyl, urethane, and/or epoxy are covalently grafted to polyethylene substrates. The grafted coatings optionally colorants, flame retardants, and the like, that impart desired improved properties to polyethylene substrates. Grafted substrates include, for example, boards, sheets, tubing, pipes and the like. The treated products are more fire resistant than untreated polyethylene and unlike untreated polyethylene, are also capable of retaining post-manufacturing paint, markings, or adhesives, as desired.
    Type: Grant
    Filed: May 10, 2001
    Date of Patent: August 31, 2004
    Assignee: Logstor Ror A/S
    Inventors: Mohan L. Sanduja, Carl Horowitz, Robert Mishiyev, Paul Thottathil
  • Patent number: 6780522
    Abstract: Described is a single or multi-layered film having at least one polyamide layer (I) containing dispersed nanoscale nucleating particles. The smallest components of the dispersed nanoscale nucleating particles in layer (I) have an extension of less than 100 nm in at least one randomly selected direction for each component, based on a weighted average of all components of the dispersed nanoscale nucleating particles. Crystalline structures emanating from the surface of the dispersed nanoscale nucleating particles are formed after the layer (I) is cooled from the molten state at a rate of from 10 to 20° C. per minute. The dispersed nanoscale nucleating particles are present in the polyamide layer (I) in an amount of from 10 ppm to 3000 ppm, based on the total weight of layer (I).
    Type: Grant
    Filed: April 10, 2001
    Date of Patent: August 24, 2004
    Assignee: Wolff Walsrode AG
    Inventors: Holger Eggers, Andreas Gasse, Gregor Kaschel, Rainer Brandt, Bernd Eilers
  • Patent number: 6777102
    Abstract: A curable composition that is curable by polymerizing both a group capable of ring-opening polymerization and an ethylenically unsaturated group includes a cross-linkable polymer containing a repeating unit represented by the formula below, the group capable of ring-opening polymerization being present in a side chain of the polymer. A hardcoated article is formed by curing the curable composition. Its hardcoat layer has a pencil hardness of 4H to 9H. A hardcoated film is formed by coating on a plastic film the curable composition and curing it. The hardcoated film is used, for example, to laminate the front face of an image display device. In the formula, R1 denotes hydrogen or an alkyl group having 1 to 4 carbon atoms, P1 is a monovalent group containing a group capable of ring-opening polymerization, and L1 is a single bond or a divalent linking group.
    Type: Grant
    Filed: February 22, 2002
    Date of Patent: August 17, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Seiya Sakurai, Yuuzou Muramatsu, Akihiro Matsufuji, Kenichirou Hatayama
  • Patent number: 6777079
    Abstract: Pressure sensitive adhesive compositions, and adhesive articles based thereon, crosslinked using a bis-amide crosslinking agent that are thermally stable, yet cleanly removable from a variety of substrates following exposure to high temperatures.
    Type: Grant
    Filed: November 30, 2001
    Date of Patent: August 17, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Zhiming Zhou, Lori P. Engle
  • Patent number: 6770374
    Abstract: Composite elements having the following layer structure: (i) 2-20 mm of metal, (ii) 10-100 mm of compact polyisocyanate polyaddition products obtainable by reacting (a) isocyanates with (b) polyether polyalcohols, if desired in the presence of (c) catalysts and/or (d) auxiliaries and/or additives, (iii) 2-20 mm of metal.
    Type: Grant
    Filed: December 5, 2000
    Date of Patent: August 3, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Heike Wild, Hans-Juergen Reese, Georg Knoblauch, Thomas Bartz, Mathäus Rank, Heinz Forster
  • Patent number: 6770376
    Abstract: An article is coated with a multi-layer coating having the appearance of nickel. The coating comprises a polymeric layer on the surface of said article and vapor deposited on the polymeric layer a refractory metal nitride or refractory metal alloy nitride where the nitrogen content of said nitride is from about 6 to about 45 atomic percent.
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: August 3, 2004
    Assignee: Vapor Technologies, Inc.
    Inventor: Guocun Chen
  • Patent number: 6762223
    Abstract: The present invention relates to printing plate coating compositions comprising: (a) a carbon pigment dispersible in water; (b) at least one polymer comprising at least one ionomeric polymer subunit; and (c) at least one high molecular weight thickening agent which shows pseudoplastic behavior. The printing plate precursor of this invention is prepared by coating a printing plate substrate with the coating composition.
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: July 13, 2004
    Assignee: Kodak Polychrome Graphics LLC
    Inventors: Paul R. West, Nicki R. Miller, Jeffrey W. Leon
  • Patent number: 6759476
    Abstract: A flexible thermal control composite comprising a natural or synthetic polymer and an endotherm dispersed, distributed and suspended within said natural or synthetic polymer i.e. “P”olymer “C”ontaining an “E”ndothermic “A”gent (PCEA). The PCEA can be formed into thin and thick films. It can be drawn, molded, extruded and spun into fibers or all dimensions. It can be formed and chopped into PCEA mulch. Irrespective its final form, the PCEA can be used in insulating, thermoprotecting, heat absorbing applications on the one hand, and heat maintenance applications of all types on the other.
    Type: Grant
    Filed: July 13, 2000
    Date of Patent: July 6, 2004
    Inventor: Claude Q. C. Hayes