Patents by Inventor Lynn M. Martynowicz

Lynn M. Martynowicz 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).

  • Expandable polyphenylene ether and polyolefin blend and process of making same
    Patent number: 5506276
    Abstract: A process for producing expandable particles of a melt compounded blend of polyphenylene ether resin and polyolefin resin. A melt compounded blend of polyphenylene ether resin and polyolefin resin, a blowing agent and water are mixed in a pressure vessel to form a dispersion; the dispersion is heated in the sealed pressure vessel to impregnate the blowing agent in the melt compounded blend of resin particles; the dispersion is then cooled in the sealed pressure vessel; and a cooled blowing agent-impregnated, melt compounded blend of resin particles is removed from the reactor. A preferred blowing agent is Freon.RTM. 11. The particles are pre-expanded by heating, and the pre-expanded particles can be foamed in a conventional mold when heat is applied thereto. A resin molding composition comprising a melt compounded blend of heat-pre-expanded, low density, resilient polyphenylene ether resin and polyolefin resin particles having about 95.0 weight percent to about 5.
    Type: Grant
    Filed: November 14, 1994
    Date of Patent: April 9, 1996
    Assignee: General Electric Company
    Inventor: Lynn M. Martynowicz
  • Method of making expandable polyphenylene ether and polyolefin blend
    Patent number: 5389320
    Abstract: A process for producing expandable particles of a melt compounded blend of polyphenylene ether resin and polyolefin resin. A melt compounded blend of polyphenylene ether resin and polyolefin resin, a blowing agent and water are mixed in a pressure vessel to form a dispersion; the dispersion is heated in the sealed pressure vessel to impregnate the blowing agent in the melt compounded blend of resin particles; the dispersion is then cooled in the sealed pressure vessel; and a cooled blowing agent-impregnated, melt compounded blend of resin particles is removed from the reactor. A preferred blowing agent is Freon.RTM. 11. The particles are pre-expanded by heating, and the pre-expanded particles can be foamed in a conventional mold when heat is applied thereto. A resin molding composition comprising a melt compounded blend of heat-pre-expanded, low density, resilient polyphenylene ether resin and polyolefin resin particles having about 95.0 weight percent to about 5.
    Type: Grant
    Filed: October 28, 1991
    Date of Patent: February 14, 1995
    Assignee: General Electric Company
    Inventor: Lynn M. Martynowicz
  • Polyphenylene ether foams from low I.V. polyphenylene ether expandable microparticles
    Patent number: 5091256
    Abstract: Expandable thermoplastic resin microparticle compositions comprising low intrinsic viscosity polyphenylene ethers and a method for producing foam therefrom are disclosed.
    Type: Grant
    Filed: September 5, 1991
    Date of Patent: February 25, 1992
    Assignee: General Electric Company
    Inventors: Richard C. Bopp, Lynn M. Martynowicz
  • Polyphenlene ether foams from low I.V. polyphenylene ether expandable microparticles
    Patent number: 5064869
    Abstract: Expandable thermoplastic resin microparticle compositions comprising low intrinsic viscosity polyphenylene ethers and a method for producing foam therefrom are disclosed.
    Type: Grant
    Filed: December 27, 1989
    Date of Patent: November 12, 1991
    Assignee: General Electric Company
    Inventors: Richard C. Bopp, Lynn M. Martynowicz
  • Expandable thermoplastic resin beads
    Patent number: 4968466
    Abstract: A process for producing expandable thermoplastic resin beads which comprises suspending in an aqueous medium interpolymer beads comprising a polyphenylene ether resin and a polymerized vinyl aromatic monomer such as styrene, polymerizing the vinyl aromatic monomer in the presence of a polymerization catalyst to interpolymerize the vinyl aromatic monomer with the polyphenylene ether and, optionally, adding a cross-linking agent, to form interpolymerized thermoplastic resin beads, and introducing a blowing agent under pressure into the thermoplastic resin beads. The resulting resin beads have excellent foamability and molding fusability, and a foamed shaped article having superior thermal stability can be prepared from these beads.
    Type: Grant
    Filed: March 30, 1990
    Date of Patent: November 6, 1990
    Assignee: GE Plastics
    Inventors: Richard B. Allen, William E. Gibbs, Lynn M. Martynowicz