Patents Represented by Attorney Richard J. Schlott

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  • Prepreg resin from aromatic bismaleimide and ethylenically unsaturated coreactant
    Patent number: 4743647
    Abstract: Described herein are novel bismaleimides and prepregable resin compositions comprising these bismaleimides and one or more liquid coreactants and optionally, one or more other additives. The novel bismaleimides, such as alpha, alpha-bis-(4-maleimidophenyl)-meta-diisopropylbenzene, are characterized by the presence of three aromatic rings in the molecular structure and in some respects optimize the desirable characteristics of the one or two and four atomatic ring-containing bismaleimides in resins prepared therefrom.
    Type: Grant
    Filed: December 18, 1986
    Date of Patent: May 10, 1988
    Assignee: Amoco Corporation
    Inventor: Linda A. Domeier
  • Alloys of styrenic resins and polyamides
    Patent number: 4740552
    Abstract: An improved method for making alloys of styrenic resins and polyamides. The styrenic resin is first melt-processed with an ethylenically-unsaturated carboxylic compound, optionally in the presence of a free-radical generator, then combined with the polyamide under melt-processing conditions. The compositions remain thermally-processable and generally exhibit good impact properties with little or no delamination.
    Type: Grant
    Filed: February 14, 1986
    Date of Patent: April 26, 1988
    Assignee: Borg-Warner Chemicals, Inc.
    Inventors: Thomas S. Grant, David V. Howe
  • Thermoplastic polyamide--polyphenylene ether compositions
    Patent number: 4732938
    Abstract: Compositions comprising a carboxylated PPE resin and a polyamide having good compatibility and impact properties. The carboxylated PPE resin/polyamide alloys are produced by a process wherein a mixture consisting essentially of the PPE resin and a minor amount of an unsaturated carboxylic compound are first melt processed, then compounded with the polyamide.
    Type: Grant
    Filed: December 6, 1985
    Date of Patent: March 22, 1988
    Assignee: Borg-Warner Chemicals, Inc.
    Inventors: Thomas S. Grant, Ronald L. Jalbert, David Whalen
  • Multielectrolyte shear treatment of carbon fibers
    Patent number: 4729820
    Abstract: Carbon fibers subjected to an electrolytic treatment in an oxidizer bath followed by electrolytic treatment in an ammonium bath have surface elemental content of oxygen greater than 7% and nitrogen greater than 4%. Composites based on the carbon fiber in combination with bis-maleimide type matrix resins have improved toughness and interfacial bonding.
    Type: Grant
    Filed: February 11, 1987
    Date of Patent: March 8, 1988
    Assignee: Amoco Corporation
    Inventor: Stuart Mitchell
  • Hexagonal underground electrical conduit
    Patent number: 4729409
    Abstract: An underground electrical conduit hexagonal in cross-section and having internal partition walls subdividing the conduit into a plurality of longitudinal ducts. The internal partition walls are symmetrically disposed about a central longitudinal axis of the conduit and serve as bracing structure to strengthen and support the outer walls of the conduit.
    Type: Grant
    Filed: August 6, 1982
    Date of Patent: March 8, 1988
    Assignee: Borg-Warner Corporation
    Inventor: Howard C. Paul
  • Epoxy resins based on tetraglycidyl diamines
    Patent number: 4721799
    Abstract: Novel tetraglycidates have the formula ##STR1## wherein R.sup.1 and R.sup.2 are independently hydrogen, alkyl of 1 to 8 carbon atoms, perfluoroalkyl, or cycloalkylidene of 5 to 7 carbon atoms. Epoxy resin systems exhibiting good tensile properties and moisture sensitivity can be made by copolymerizing the tetraglycidates with a polyamine curing agent. Prepregs can be made by combining the epoxy resin systems with a fiber reinforcement. The epoxy resin system may include a co-epoxide.
    Type: Grant
    Filed: March 3, 1986
    Date of Patent: January 26, 1988
    Assignee: Amoco Corporation
    Inventor: Richard H. Newman-Evans
  • Grafted nitrile rubber blends as thermoplastic elastomers
    Patent number: 4703083
    Abstract: Compositions comprising 100 parts by weight high (>50 wt %) nitrile rubber graft copolymer and from 20 to 50 pbw nitrile rubber are thermoplastic elastomers. These elastomers exhibit improved abrasion resistance and compression set properties, and have good oil resistance.
    Type: Grant
    Filed: May 28, 1986
    Date of Patent: October 27, 1987
    Assignee: Borg-Warner Chemicals, Inc.
    Inventors: Claudio Giori, Stamatios G. Mylonakis
  • Thermoplastic compositions containing nitrile rubber
    Patent number: 4703084
    Abstract: Compositions comprising a vinyl aromatic compound-acrylonitrile copolymer, a nitrile rubber and a graft copolymer thereof possess good rubbery characteristics and are processible as thermoplastics with low mold shrinkage.
    Type: Grant
    Filed: May 28, 1986
    Date of Patent: October 27, 1987
    Assignee: Borg-Warner Chemicals, Inc.
    Inventors: Claudio Giori, Stamatios G. Mylonakis
  • Controlled atmosphere capsule for fluxless brazing
    Patent number: 4701127
    Abstract: A controlled environment capsule for fluxless brazing comprising an open-bottom box, an end-plate and a foil gasket sealing means. Diffusion plates are disposed within the interior of the box and connected to an external source of inert gas. The inert gas is uniformly distributed over the work piece, excluding air from the capsule and the work piece by being maintained at a positive pressure relative to the external environment.
    Type: Grant
    Filed: December 10, 1982
    Date of Patent: October 20, 1987
    Assignee: Borg-Warner Corporation
    Inventors: Kostas F. Dockus, John L. Zambrow
  • Bismaleimides and prepreg resins therefrom
    Patent number: 4691025
    Abstract: Described herein are novel bismaleimides and prepregable resin compositions comprising these bismaleimides and one or more liquid coreactants and optionally, one or more other additives.
    Type: Grant
    Filed: December 22, 1983
    Date of Patent: September 1, 1987
    Assignee: Amoco Corporation
    Inventors: Linda A. Domeier, Hugh C. Gardner
  • Moisture resistant, wet winding epoxy resin system containing aromatic diamines
    Patent number: 4686250
    Abstract: Curable thermosetting resin compositions comprising at least one cycloaliphatic epoxy resin having at least two 1,2-epoxy groups per molecule, and certain aromatic diamines having three aromatic rings in the molecule are disclosed. Resin compositions comprised of, for example, bis(2,3-epoxycyclopentyl)ether and 1,3-bis(4-aminophenoxy)benzene exhibit a highly desirable balance of physical and chemical properties which renders such compositions ideally suited for use in the fabrication of wet winding composites. The resin compositions prepared in accordance with the invention have unexpectedly low viscosity, high glass transition temperatures, high tensile properties and unexpectedly low water uptake. Accordingly, the resin compositions find particular application in the preparation of composites by wet winding procedures.
    Type: Grant
    Filed: December 27, 1985
    Date of Patent: August 11, 1987
    Assignee: Amoco Corporation
    Inventor: Shahid P. Qureshi
  • Chopped carbon fibers and methods for producing the same
    Patent number: 4686096
    Abstract: Chopped carbon yarn is produced by spinning continuous pitch yarn, treating the pitch yarn with an oxidizing composition, chopping the pitch yarn into short lengths, collecting the chopped pitch yarn into a bulk form, and subjecting the chopped pitch yarn to a heat treatment in a substantially non-reactive atmosphere to produce chopped carbon yarn.
    Type: Grant
    Filed: July 20, 1984
    Date of Patent: August 11, 1987
    Assignee: Amoco Corporation
    Inventors: David A. Schulz, Loren C. Nelson
  • Turbulent flow liquid application apparatus and a method of turbulently applying a liquid onto a substrate
    Patent number: 4686123
    Abstract: An apparatus is disclosed for continuously applying a treating medium onto a moving substrate in a turbulent manner. The apparatus is provided with a chamber through which the substrate and the treating medium are passed. Both the upper and lower portions of the chamber each have at least one cavity which is perpendicular to the direction of travel of the substrate, wherein the respective cavities of the upper and lower portions are coaxial with one another. Each cavity contains an applicator which is capable of turbulently applying the treating medium onto the substrate. A method of treating a substrate with a treating medium using this apparatus is also disclosed. By means of the apparatus and method disclosed, a substrate can be treated in a more controlled and efficient manner.
    Type: Grant
    Filed: January 30, 1986
    Date of Patent: August 11, 1987
    Assignee: Amoco Corporation
    Inventor: Chris D. Levan
  • Process for preparing bis(dialkylphenyl) pentaerythritol diphosphites
    Patent number: 4665211
    Abstract: An improved transesterification process for preparing bis-(2,4-dialkylphenyl) pentaerythritol phosphates using n-alkanes or cycloalkanes as solvents to provide high spiro/cage isomer ratios.
    Type: Grant
    Filed: December 3, 1985
    Date of Patent: May 12, 1987
    Assignee: Borg-Warner Chemicals, Inc.
    Inventors: Gary V. Marlin, James F. York
  • Graft copolymer - plasticized PVC blends as thermoplastic elastomers
    Patent number: 4659766
    Abstract: Compositions comprising high rubber ABS graft copolymers, PVC and plasticizers for PVC are useful as thermoplastic elastomers. Formulations exhibiting good solvent resistance, abrasion and compression set characteristics may be used in shoe soling, wire and cable covering, hose and tubing and automotive applications.
    Type: Grant
    Filed: December 19, 1983
    Date of Patent: April 21, 1987
    Assignee: Borg-Warner Chemicals, Inc.
    Inventors: John C. Falk, Leland B. Kliever
  • Carboxylated phenylene ether resins
    Patent number: 4654405
    Abstract: Melt-processing a mixture of a polyphenylene ether (PPE) and an ethylenically unsaturated carboxylic compound, in the absence of an added free radical initiator such as a peroxide, serves to introduce carboxyl functionality into the PPE resin. The resulting carboxylated PPE resins are useful in forming alloys with more polar resins such as polyamides.
    Type: Grant
    Filed: December 5, 1985
    Date of Patent: March 31, 1987
    Assignee: Borg-Warner Chemicals, Inc.
    Inventors: Ronald L. Jalbert, Thomas S. Grant
  • Stabilization composition for clear, impact-modified PVC
    Patent number: 4614756
    Abstract: A composition comprising a dioctyl tin mercaptide, a zinc salt of a fatty acid such as zinc stearate and a conventional phosphite ester stabilizer is effective in stabilizing PVC resins. The stabilized resins exhibit excellent initial color and stability under processing conditions.
    Type: Grant
    Filed: August 1, 1985
    Date of Patent: September 30, 1986
    Assignee: Borg-Warner Chemicals, Inc.
    Inventor: Leo L. Valdiserri
  • Refrigerant additive and method for reducing corrosion in refrigeration systems
    Patent number: 4599185
    Abstract: The addition of a phospholipid to the halogenated hydrocarbon working fluid of a refrigeration system serves to markedly reduce the corrosion of steel exposed thereto.
    Type: Grant
    Filed: March 25, 1985
    Date of Patent: July 8, 1986
    Assignee: Borg-Warner Corporation
    Inventors: James A. Towers, Robert H. Krueger
  • ABS plastic made transparent and flame retardant with Br.sub.2 -Br.sub.8 diphenyl ethers
    Patent number: 4581403
    Abstract: ABS resins are blended with a Br.sub.2 -Br.sub.8 polybrominated diphenyl ether to yield an ABS resin which is flame retardant and transparent.
    Type: Grant
    Filed: March 18, 1985
    Date of Patent: April 8, 1986
    Assignee: Borg-Warner Chemicals, Inc.
    Inventor: Thomas W. Stemple
  • Resin-reinforced, nodular plated wet friction materials
    Patent number: 4552259
    Abstract: Porous wear facings formed of a nodular plated metallic coating are useful as friction elements in wet clutches and the like. The wear and friction characteristics of the wear elements may be further modified for particular applications by coating with phenolic resins, optionally including wear particles.
    Type: Grant
    Filed: June 27, 1984
    Date of Patent: November 12, 1985
    Assignee: Borg-Warner Corporation
    Inventor: Clarence E. Albertson