Patents by Inventor Sung Whee Hong

Sung Whee Hong 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).

  • Rubber compositions and methods for decreasing the tangent delta value and maintaining the abrasion resistance index
    Patent number: 7714050
    Abstract: A rubber composition is disclosed wherein the rubber composition contains at least (a) a rubber component; (b) a silica filler; (c) a coupling agent; (d) an effective amount of a nitrogen-containing compound; and, (e) a thiuram disulfide having a molecular weight of at least about 400.
    Type: Grant
    Filed: October 13, 2004
    Date of Patent: May 11, 2010
    Assignee: Crompton Corporation
    Inventor: Sung Whee Hong
  • Free curing rubber composition
    Patent number: 3965055
    Abstract: A vulcanizable rubber is modified by the addition of a resin at a temperature above the melting point of said resin. Shaped articles are formed from the resulting blend and cured without restraining pressure at a temperature below the melting point of said resin. The resin portion is present in said articles in the form of particles having a cross sectional dimension (D) not greater than 1/2 micron and a length (L) to cross sectional dimension (D) ratio of 2 or greater.
    Type: Grant
    Filed: February 14, 1974
    Date of Patent: June 22, 1976
    Assignee: Uniroyal Inc.
    Inventors: Daniel Shichman, Sung Whee Hong