Patents by Inventor James W. Waterman

James W. Waterman 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).

  • Menthanol extraction of polar organic compounds and modifier compounds from poly(arylene sulfide) polymer and oligomer streams
    Patent number: 6437024
    Abstract: A process is provided to recover at least one modifier compound and at least one polar organic compound from a poly(arylene sulfide) reaction mixture comprising high molecular weight poly(arylene sulfide), low molecular weight poly(arylene sulfide), cyclic and linear poly(arylene sulfide) oligomers, at least one polar organic compound, at least one modifier compound, and an alkali metal halide by-product.
    Type: Grant
    Filed: September 13, 1999
    Date of Patent: August 20, 2002
    Assignee: Phillips Petroleum Company
    Inventors: Fernando C. Vidaurri, Jr., James W. Waterman, Jon F. Geibel
  • Process for producing poly(arylene sulfide)
    Patent number: 6331608
    Abstract: A process is provided to recover at least one modifier compound and at least one polar organic compound from a reaction mixture comprising high molecular weight Poly(arylene sulfide) product, low molecular weight P(AS), cyclic and linear P(AS) oligomers, at least one POC, at least one modifier, an alkali metal halide by-product, and water.
    Type: Grant
    Filed: September 13, 1999
    Date of Patent: December 18, 2001
    Assignee: Phillips Petroleum Company
    Inventors: Fernando C. Vidaurri, Jon F. Geibel, James W. Waterman, Jay M. Chaffin, Aubrey South, Jr., Jeffrey S. Fodor, Glenn F. Kile
  • Method of particulating agglomerated catalyst materials
    Patent number: 4681266
    Abstract: A method for producing particles having a controlled particle size from agglomerated material is provided. Agglomerated material is passed through a beater mill and subjected simultaneously to the beating action of a plurality of blades and a vigorous stream of air as the agglomerated material impacts the peripheral screen of the beater mill.
    Type: Grant
    Filed: January 21, 1986
    Date of Patent: July 21, 1987
    Assignee: Phillips Petroleum Company
    Inventors: Ronald G. Mason, Emory W. Pitzer, Max P. McDaniel, David L. Rogers, James W. Waterman