Patents Represented by Attorney Richard J. Schlott
  • Patent number: 6562447
    Abstract: Foamable polypropylene composition comprising a polypropylene resin having an D1238L melt flow rate of from about 0.5 to about 30 g/10 min, and a method for extruding rigid, foamed polypropylene sheet with improved surface appearance having a density in the range 0.4 to about 0.
    Type: Grant
    Filed: September 25, 2001
    Date of Patent: May 13, 2003
    Assignee: BP Corporation North America Inc.
    Inventors: Jesse Wu, James H. Han, Phil Jacoby, Mark C. Novak, Constantine Metaxas, Chin Choi-Feng, Ray O. Mills, Daan Feng
  • Patent number: 6521675
    Abstract: Foamable polypropylene composition comprising a polypropylene resin having an D1238L melt flow rate of from about 0.5 to about 30 g/10 min, and a method for extruding rigid, foamed polypropylene sheet with improved surface appearance having a density in the range 0.4 to about 0.8 g/cm3.
    Type: Grant
    Filed: August 31, 1999
    Date of Patent: February 18, 2003
    Assignee: BP Corporation North America Inc.
    Inventors: Jesse Wu, James H. Han, Phil Jacoby, Mark C. Novak, Constantine Metaxas, Chin Choi-Feng, Ray O. Mills
  • Patent number: 6432536
    Abstract: Self-reinforcing, pitch-based carbon articles having an unique combination of excellent thermal conductivity and outstanding mechanical properties are produced by carbonizing acid-treated mesophase pitch fiber, preferably in the form of a preform structure The carbon articles having varying degrees of porosity are particularly desirable for use in thermal management and stiffness applications, and in carbon vapor infiltration processes employed in making complex solid carbon articles.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: August 13, 2002
    Assignee: Cytec Carbon Fibers LLC
    Inventors: Daniel H. Hecht, David A. Schulz
  • Patent number: 6383425
    Abstract: An improved coat hanger extrusion die wherein the aperture of the die land widens along the extrusion axis of said die to the die exit opening, thereby forming an expansion zone, and a method for extruding foamed polypropylene sheet having an improved surface appearance.
    Type: Grant
    Filed: August 31, 1999
    Date of Patent: May 7, 2002
    Assignee: BP Corporation North America Inc.
    Inventors: Jesse Wu, James H. Han
  • Patent number: 6228970
    Abstract: A new poly (biphenyl ether sulfone) having improved polydispersity and also having low levels of low molecular weight oligomer.
    Type: Grant
    Filed: September 22, 1999
    Date of Patent: May 8, 2001
    Assignee: BP Amoco Corporation
    Inventor: Selvaraj Savariar
  • Patent number: 6207745
    Abstract: This invention is a flame-retardant, anti-dripping polyamide composition comprising a high temperature polyphthalamide, a halogen-containing organic compound, and an anti-drip effective amount of an anti-drip component comprising a polymer formed from at least one ethylenically unsaturated monomer and at least one carboxylic acid containing monomer.
    Type: Grant
    Filed: January 25, 1999
    Date of Patent: March 27, 2001
    Assignee: BP Amoco Corporation
    Inventors: Bruce H. Bersted, Mark G. Reichmann
  • Patent number: 6187718
    Abstract: Superconducting composites comprising a high thermal conductivity carbon substrate and a layer of ceramic-type superconductor. Particularly attractive for use as a superconducting flexible conductor are composites comprising a high thermal conductivity, low resistivity carbon fiber disposed within a non-adherent sleeve layer formed of the superconducting ceramic material.
    Type: Grant
    Filed: September 14, 1994
    Date of Patent: February 13, 2001
    Assignee: BP Amoco Corporation
    Inventor: David A. Schulz
  • Patent number: 6124399
    Abstract: High impact polysulfone blends containing a polysulfone and from about 10 to about 25 wt % of an impact modifier formulation comprising an acrylate rubber and a polycarbonate, and a method for providing supertough polysulfones.
    Type: Grant
    Filed: December 16, 1997
    Date of Patent: September 26, 2000
    Assignee: Bz Amoco Corporation
    Inventor: M. Jamal El-Hibri
  • Patent number: 5916958
    Abstract: Compositions comprising poly(biphenyl ether sulfone) PTFE and titanium dioxide exhibit enhanced flame retardant characteristics. Blends of the formulations may further comprise poly(aryl ether ketone) or another poly (aryl ether sulfone).
    Type: Grant
    Filed: February 19, 1993
    Date of Patent: June 29, 1999
    Assignee: Amoco Corporation
    Inventors: William Edward Kelly, Lloyd Joseph Male, Gregory Constantine Plithides
  • Patent number: 5905120
    Abstract: Blends containing a polyetherimide and from about 8 to about 20 wt. % of a modifier formulation comprising an acrylate rubber and a polycarbonate, and a method for improving the ESCR properties of polyetherimides.
    Type: Grant
    Filed: December 16, 1997
    Date of Patent: May 18, 1999
    Inventor: M. Jamal El-Hibri
  • Patent number: 5750058
    Abstract: Self-reinforcing, pitch-based carbon articles having a unique combination of excellent thermal conductivity and outstanding mechanical properties are produced by carbonizing an acid-treated, mesophase pitch fiber preform. The carbon articles having varying degrees of porosity are particularly desirable for use in thermal management and stiffness applications, and in carbon vapor infiltration processes employed in making complex solid carbon articles.
    Type: Grant
    Filed: July 8, 1996
    Date of Patent: May 12, 1998
    Assignee: Amoco Corporation
    Inventors: Daniel H. Hecht, David A. Schulz
  • Patent number: 5705008
    Abstract: The present invention relates to the fabrication of thick, three-dimensional structures comprising discontinuous thermoset pitch fiber, and to composites comprising such structures embedded in a matrix material such as a thermoset resin, ceramic, metal or carbon. Carbon-carbon fiber composite articles produced from porous carbon preforms obtained by carbonizing such structures followed by infiltration with pyrolytic carbon using CVD processes exhibit surprisingly high through-thickness thermal conductivity and isotropic properties.
    Type: Grant
    Filed: July 23, 1996
    Date of Patent: January 6, 1998
    Assignee: Amoco Corporation
    Inventor: Daniel H. Hecht
  • Patent number: 5665806
    Abstract: Polyphthalamide formulations containing from 0.1 to about 2 wt % alkali metal halide have a significantly reduced melt viscosity and both filled and untitled resin formulations containing the requisite amount of alkali metal halide are more readily processed by thermal means. When stabilized with a copper-containing stabilizer and, optionally, a polyolefin synergist the formulations exhibit substantially improved dry heat stability and are particularly useful in the production of thermally-stabilized melt spun polyphthalamide fiber for applications where extended exposure to elevated temperatures in air is contemplated.
    Type: Grant
    Filed: February 8, 1996
    Date of Patent: September 9, 1997
    Assignee: Amoco Corporation
    Inventor: Mark G. Reichmann
  • Patent number: 5654059
    Abstract: The present invention relates to the fabrication of thick, three-dimensional structures comprising discontinuous thermoset pitch fiber, and to composites comprising such structures embedded in a matrix material such as a thermoset resin, ceramic, metal or carbon. Carbon-carbon fiber composite articles produced from porous carbon preforms obtained by carbonizing such structures followed by infiltration with pyrolytic carbon using CVD processes exhibit surprisingly high through-thickness thermal conductivity and isotropic properties.
    Type: Grant
    Filed: August 5, 1994
    Date of Patent: August 5, 1997
    Assignee: Amoco Corporation
    Inventor: Daniel H. Hecht
  • Patent number: 5643995
    Abstract: A method for improving the processability of a crystalline polyphthalamide having high heat deflection temperature when filled with glass fibers by compounding with an amount of a polyarylene sulfide sufficient to reduce melt viscosity.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: July 1, 1997
    Assignee: Amoco Corporation
    Inventors: M. Jamal El-Hibri, Yu-Tsai Chen, David P. Sinclair
  • Patent number: 5631086
    Abstract: Filled thermoplastic pitch comprising particulate filler and advanced mesophase pitch having a TMA deformation temperature of at least 400.degree. C., and a method for the manufacture thereof. The filled thermoplastic pitch may be shaped and densified in one or more thermoforming operations. The resulting preform may be thermoset and carbonized in ordinary baking operations without requiring molds and pressurized vessels.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: May 20, 1997
    Assignee: Amoco Corporation
    Inventors: Leonard S. Singer, David T. Orient
  • Patent number: 5599629
    Abstract: Described herein is a composition comprising an epoxy resin containing at least one glycidyl amine group wherein the resin contains three or more epoxide groups per molecule and a particular aromatic amine hardener. These compositions possess the necessary balance of properties required for making prepreg and afford unreinforced castings with high moduli and strength.
    Type: Grant
    Filed: March 1, 1984
    Date of Patent: February 4, 1997
    Assignee: Amoco Corporation
    Inventors: Hugh C. Gardner, Shahid P. Qureshi
  • Patent number: 5599628
    Abstract: Described herein are compositions containing (a) a cycloaliphatic epoxy resin, (b) an aromatic amine hardener, and (c) a particular cure accelerator. These compositions afford unreinforced castings with a high level of mechanical properties and improved heat deflection temperatures.
    Type: Grant
    Filed: March 1, 1984
    Date of Patent: February 4, 1997
    Assignee: Amoco Corporation
    Inventor: Hugh C. Gardner
  • Patent number: 5599856
    Abstract: Described herein are compositions useful for the preparation of high modulus matrix resins for composites comprising a cycloaliphatic epoxide and a particular modifier.
    Type: Grant
    Filed: March 1, 1984
    Date of Patent: February 4, 1997
    Assignee: Amoco Corporation
    Inventor: Hugh C. Gardner
  • Patent number: 5596050
    Abstract: Described herein are resinous compositions comprising a particular cycloaliphatic epoxy resin and the adduct of these epoxy resins with an aromatic active hydrogen-containing compound. These compositions afford unreinforced castings with higher heat deflection temperatures, faster cure rates, and reduced water uptake than similar compositions containing epoxy adducts made from aliphatic polyols.
    Type: Grant
    Filed: March 1, 1984
    Date of Patent: January 21, 1997
    Assignee: Amoco Corporation
    Inventors: Hugh C. Gardner, Michael J. Michno, Jr., Robert J. Cotter