Patents by Inventor C. Wayne Emerson

C. Wayne Emerson 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).

  • Low density acrylic fiber
    Patent number: 6740722
    Abstract: An acrylic fiber having cotton-like properties with modified, internal void structure and optical characteristics, the acrylic fiber comprising a BYK Gardner Luster (BYL) reflectance measurement of less than about 44.
    Type: Grant
    Filed: September 25, 2001
    Date of Patent: May 25, 2004
    Assignee: Solutia Inc.
    Inventors: Gary J. Capone, Danny W. Carter, C. Wayne Emerson
  • Low density acrylic fiber
    Publication number: 20030057593
    Abstract: An acrylic fiber having cotton-like properties with modified, internal void structure and optical characteristics, the acrylic fiber comprising a BYK Gardner Luster (BYL) reflectance measurement of less than about 44.
    Type: Application
    Filed: September 25, 2001
    Publication date: March 27, 2003
    Inventors: Gary J. Capone, Danny W. Carter, C. Wayne Emerson
  • Polyacrylonitrile polymer treatment
    Patent number: 6143835
    Abstract: The present invention relates to a method for exchanging derivatizing agents onto ionic functional groups, preferably sulfate, sulfonate, and carboxylate functional groups, in a polymer, and then thereby holding these derivatizing agents in place by strong ionic bonds. The ionic functional groups are those currently used in industry to enhance dyeability, and therefore do not present a problem with textile treatments normally encountered in the industry. Polyacrylonitrile polymer is synthesized with an ionic comonomer to obtain a number of dye sites above that required for dying. The sodium or other cation that is ionically bound to the ionic comonomer, as well as the sulfonate and sulfate end groups, is then exchanged with a derivatizing agent. The preferred derivatizing agents comprise a quaternary ammonium compound.
    Type: Grant
    Filed: April 3, 1998
    Date of Patent: November 7, 2000
    Assignee: Solutia Inc.
    Inventors: Gary J. Capone, C. Wayne Emerson, Bruce E. Wade