Patents by Inventor Kevin M. Snow

Kevin M. Snow has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Electrically conductive article made of polyphenylene ether electrical insulation compositions
    Patent number: 5364898
    Abstract: Improved thermoplastic compositions characterized by high tensile elongation values are described. They comprise polyphenylene ether resin, a hydrogenated elastomeric block copolymer having an A-B-A' structure, with specific molecular weight values for the copolymer blocks and a phenylsiloxane fluid of particular composition. Electrical conductor articles which include polymerized thermoplastic compositions as mentioned above represent another embodiment of this invention.
    Type: Grant
    Filed: December 14, 1993
    Date of Patent: November 15, 1994
    Assignee: General Electric Company
    Inventors: Gim F. Lee, Jr., Kevin M. Snow
  • Method for making thermoplastic silicone-polyphenylene ether block copolymers and block copolymer blends and products obtained therefrom
    Patent number: 5357022
    Abstract: An oxidative coupling method is provided using a diorganophenol such as 2,6-xylenol and a silicone macromer having terminal phenol groups such as the hydrosilylation reaction product of eugenol. Thermoplastic polymeric products such as silicone-polyphenylene ether block copolymers, which can be flame retardant, as well as blends thereof with thermoplastic polymers, such as polyphenylene ether, also are provided.
    Type: Grant
    Filed: April 16, 1993
    Date of Patent: October 18, 1994
    Assignee: General Electric Company
    Inventors: Timothy E. Banach, Margaret L. Blohm, Kevin M. Snow
  • Polyphenylene ether electrical insulation compositions
    Patent number: 5294655
    Abstract: Improved thermoplastic compositions characterized by high tensile elongation values are described. They comprise polyphenylene ether resin, a hydrogenated elastomeric block copolymer having an A-B-A' structure, with specific molecular weight values for the copolymer blocks and a phenylsiloxane fluid of particular composition. Electrical conductor articles which include polymerized thermoplastic compositions as mentioned above represent another embodiment of this invention.
    Type: Grant
    Filed: May 15, 1992
    Date of Patent: March 15, 1994
    Assignee: General Electric Company
    Inventors: Gim F. Lee, Jr., Kevin M. Snow
  • Silicone macromers and thermoplastic flame retardant silicone-polyphenylene ether graft copolymers obtained therefrom
    Patent number: 5204438
    Abstract: A silicone cyclic, such as hexaorganotrisiloxane is lithiated with an alkyl lithium compound followed by treatment with a diorganohalosilane to produce a polydiorganosiloxane having a terminal diorganohydridesiloxy unit. The platinum catalyzed addition of a 2-alkenyl-6-organophenol results in the production of a phenol-siloxane macromer. Conversion of the phenol-siloxane macromer to a silicone polyphenylene ether graft copolymer is effected by oxidatively coupling the 2,6-diorganophenol to the phenol-siloxane macromer.
    Type: Grant
    Filed: January 15, 1992
    Date of Patent: April 20, 1993
    Assignee: General Electric Company
    Inventors: Kevin M. Snow, James E. Pickett, Larry N. Lewis
  • Method for enhancing the flame retardance of polyphenylene ethers
    Patent number: 5169887
    Abstract: Improved flame retardance and smoke/heat reduction has been imparted to polyphenylene ethers by blending the polyphenylene ethers with organopolysiloxane fluids having a critical mole % range of chemically combined phenylsiloxane units.
    Type: Grant
    Filed: January 15, 1992
    Date of Patent: December 8, 1992
    Assignee: General Electric Company
    Inventors: Kevin M. Snow, Gary C. Davis, Gim F. Lee
  • Flame retardant organopolysiloxane-polycarbonate graft copolymers
    Patent number: 5039772
    Abstract: Flame retardant graft organopolysiloxane-polycarbonate copolymers are provided which can be made by effecting addition between a silicon-hydride siloxane and an aliphatically unsaturated substituted bisphenol followed by phosgenation of the resulting adduct. Alternatively, direct addition of the silicon-hydride siloxane onto an aliphatically unsaturated substituted polycarbonate backbone also can be effected.
    Type: Grant
    Filed: August 27, 1990
    Date of Patent: August 13, 1991
    Assignee: General Electric Company
    Inventors: Gary C. Davis, Barbara E. McGrath, Kevin M. Snow
  • Flame retardant organopolysiloxane-polycarbonate triblock copolymers
    Patent number: 5025074
    Abstract: Phenol-organopolysiloxane chainstoppers are phosgenated in combination with a bisphenol to make flame retardant organopolysiloxane-polycarbonate triblock copolymers. The phenol-organopolysiloxane chainstoppers can be made by effecting addition between an aliphatically unsaturated phenol and a silicon-hydride organopolysiloxane.
    Type: Grant
    Filed: August 27, 1990
    Date of Patent: June 18, 1991
    Assignee: General Electric Company
    Inventors: Gary C. Davis, Barbara E. McGrath, Kevin M. Snow