Patents by Inventor John S. Kucsan

John S. Kucsan 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).

  • Foam control compositions for aqueous systems, its preparation, and process using same
    Patent number: 3935121
    Abstract: A foam control composition, and methods for its production and use, is disclosed, which comprises a liquid hydrocarbon carrier, an organic emulsifier, an amide of a fatty acid, and, optionally, a silicone oil. Composition is useful in controlling foam encountered in preparation of paper pulp, resinous materials, and in the treatment of waste systems and cooling towers. The foam control composition is prepared by (a.) combining the amide, emulsifier and from about 1/5 to about 1/2 of the liquid hydrocarbon carrier, (b.) heating until a clear melt is obtained, (c.) rapidly adding to said melt the remainder of said liquid hydrocarbon carrier to cool the melt to a temperature of from ca. 150.degree.F. to ca. 200.degree.F., and (d.) allowing the cooled mixture to further cool to a temperature of from about ambient to about 135.degree.F.
    Type: Grant
    Filed: June 29, 1973
    Date of Patent: January 27, 1976
    Assignee: Betz Laboratories, Inc.
    Inventors: Hillel Lieberman, Anthony J. Graffeo, John S. Kucsan