Patents by Inventor Donald H. Shomake

Donald H. Shomake 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).

  • Process for sizing spun yarns
    Patent number: 5626952
    Abstract: A process for sizing spun yarns by adding urea in an amount of about 10 to 50% by weight of the weight of a polyacrylamide polymer, wherein the polymer and urea are applied in an amount sufficient to impart a high order of abrasion resistance to the yarn.
    Type: Grant
    Filed: December 15, 1995
    Date of Patent: May 6, 1997
    Assignee: Callaway Corporation
    Inventors: Michael L. McAbee, Warren S. Perkins, Donald H. Shomake
  • Process for sizing spun cotton yarns
    Patent number: 5397633
    Abstract: This invention is to a process for sizing spun cotton yarns, especially dyed spun cotton yarns. The process entails treating a cotton-containing yarn with a solution polyacrylamide polymer. The use of this polymer system with a spun cotton yarn has been discovered both to overcome the previous excessive brittleness which had precluded use of polyacrylamide polymers as a size and to produce a fabric which can be overdyed without prior removal of the size.
    Type: Grant
    Filed: June 18, 1993
    Date of Patent: March 14, 1995
    Assignee: Exxon Chemical Patents, Inc.
    Inventors: Michael L. McAbee, Donald H. Shomake