Patents Assigned to Shamrock Chemicals Corporation
  • Method of providing friable polytetrafluoroethylene products
    Patent number: 5891573
    Abstract: A method is disclosed for providing a friable polytetrafluoroethylene (PTFE) product that has particles of a desired size which are flowable and do not tend to agglomerate. To achieve this result, the PTFE starting material is handled at a temperature below 66.degree. F., and preferably below 55.degree. F., before irradiating. The PTFE starting material may be mixed with a wetting agent before irradiating to provide a product that has enhanced dispersibility. The source of radiation may include electron beam radiation, nuclear radiation, or radiation from a cobalt-60 (CO.sub.60) source.
    Type: Grant
    Filed: August 8, 1997
    Date of Patent: April 6, 1999
    Assignee: Shamrock Chemicals Corporation
    Inventors: Nicholas W. Neuberg, George Poszmik, Manshi Sui
  • Apparatus and method for radiation processing of materials
    Patent number: 4777192
    Abstract: A method and apparatus for radiation degradation processing of polytetrafluoroethylene makes use of a simultaneous irradiation, agitation and cooling. The apparatus is designed to make efficient use of radiation in the processing.
    Type: Grant
    Filed: July 22, 1983
    Date of Patent: October 11, 1988
    Assignee: Shamrock Chemicals Corporation
    Inventors: William B. Neuberg, Robert Luniewski
  • Apparatus and method for radiation processing of materials
    Patent number: 4748005
    Abstract: A method and apparatus for radiation degradation processing of polytetrafluoroethylene makes use of a simultaneous irradiation, agitation and cooling. The apparatus is designed to make efficient use of radiation in the processing.
    Type: Grant
    Filed: May 3, 1982
    Date of Patent: May 31, 1988
    Assignee: Shamrock Chemicals Corporation
    Inventors: William B. Neuberg, Robert Luniewski
  • Method of using powders to cure solvent free inks
    Patent number: 4729918
    Abstract: An improved process for curing solvent free inks using resin powder makes use of a caulstock laminate which is applied against a printed surface bearing ink and resin powder. The printed material and the caulstock are heated, pressed together and then cooled.
    Type: Grant
    Filed: October 6, 1986
    Date of Patent: March 8, 1988
    Assignee: Shamrock Chemical Corporation
    Inventors: William B. Neuberg, John J. Aclin
  • Method of using powders to cure solvent free inks
    Patent number: 4615911
    Abstract: An improved process for curing solvent free inks using resin powder makes use of a caulstock laminate which is applied against a printed surface bearing ink and resin powder. The printed material and the caulstock are heated, pressed together and then cooled.
    Type: Grant
    Filed: August 13, 1984
    Date of Patent: October 7, 1986
    Assignee: Shamrock Chemicals Corporation
    Inventors: William B. Neuberg, John J. Aclin