Patents by Inventor Miles Q. Fetterman

Miles Q. Fetterman 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).

  • Scorch retardants for rubber reinforced with siliceous pigment and mercapto-type coupling agent
    Patent number: 4002594
    Abstract: Rubber vulcanizates reinforced with siliceous pigment have desirable properties. The addition of a mercapto-type coupling agent hastens curing and strengthens adhesion between the rubber polymer and the silica, but tends to cause premature vulcanization or scorch. The further addition of a thiomorpholine compound such as 4,4'-dithiodimorpholine or 2-(4-morpholinothio)-benzothiazole retards scorch and improves stress/strain properties and abrasion resistance, but affects curing time only moderately.
    Type: Grant
    Filed: July 8, 1975
    Date of Patent: January 11, 1977
    Assignee: PPG Industries, Inc.
    Inventor: Miles Q. Fetterman