Patents by Inventor Joseph F. Porinchak

Joseph F. Porinchak 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).

  • Alumina-silica cogel
    Patent number: 4780446
    Abstract: A precipitated alumina-silica cogel which possesses a high total pore volume and wide pore size distribution. The precipitated cogel is used to prepare catalysts and catalyst supports that are used in the catalytic conversion and processing of hydrocarbons.
    Type: Grant
    Filed: February 1, 1985
    Date of Patent: October 25, 1988
    Assignee: W. R. Grace & Co.
    Inventors: Richard J. Nozemack, Joseph F. Porinchak
  • Ethylene-vinyl acetate copolymer film laminate
    Patent number: 4278738
    Abstract: A film of ethylene vinyl acetate having a narrow molecular weight distribution and a saran composition that is a blend of emulsion and suspension polymerized saran or a saran composition that includes emulsion polymerized saran of the type generally considered suitable for liquid coating. A laminate including the film and composition and the method for production thereof including sequentially melt extruding tubular films of ethylene vinyl acetate which is irradiated, saran and ethylene vinyl acetate and then bubble orienting the three-ply laminate. The laminate is employed for packaging and forming packages of bone-in fresh red meat.
    Type: Grant
    Filed: July 16, 1979
    Date of Patent: July 14, 1981
    Assignee: W. R. Grace & Co.
    Inventors: Harri J. Brax, Joseph F. Porinchak, Alan S. Weinberg
  • Process for melt extruding coating grade saran
    Patent number: 4082829
    Abstract: A melt extrusion process is taught which employs a saran of the type generally considered suitable for liquid coating.
    Type: Grant
    Filed: January 2, 1976
    Date of Patent: April 4, 1978
    Assignee: W. R. Grace & Co.
    Inventors: Harri J. Brax, Joseph F. Porinchak, Alan S. Weinberg
  • Polymer film with narrow molecular weight distribution and saran and laminates thereof
    Patent number: 4031162
    Abstract: A film of ethylene vinyl acetate having a narrow molecular weight distribution and a saran composition that is a blend of emulsion and suspension polymerized saran or a saran composition that includes emulsion polymerized saran of the type generally considered suitable for liquid coating. A laminate including the film and composition and the method for production thereof including sequentially melt extruding tubular films of ethylene vinyl acetate which is irradiated, saran and ethylene vinyl acetate and then bubble orienting the three-ply laminate. The laminate is employed for packaging and forming packages of bone-in fresh red meat.
    Type: Grant
    Filed: January 2, 1976
    Date of Patent: June 21, 1977
    Assignee: W. R. Grace & Co.
    Inventors: Harri J. Brax, Joseph F. Porinchak, Alan S. Weinberg
  • Polymer film with narrow molecular weight distribution and saran and laminates thereof
    Patent number: 3953557
    Abstract: A film of ethylene vinyl acetate having a narrow molecular weight distribution and a saran composition that is a blend of emulsion and suspension polymerized saran or a saran composition that includes emulsion polymerized saran of the type generally considered suitable for liquid coating. A laminate including the film and composition and the method for production thereof including sequentially melt extruding tubular films of ethylene vinyl acetate which is irradiated, saran and ethylene vinyl acetate and then bubble orienting the three-ply laminate. The laminate is employed for packaging and forming packages of bone-in fresh red meat.
    Type: Grant
    Filed: March 22, 1973
    Date of Patent: April 27, 1976
    Assignee: W. R. Grace & Co.
    Inventors: Harri J. Brax, Joseph F. Porinchak, Alan S. Weinberg