Patents Represented by Attorney Malcolm M. Sutherland

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  • Castor based quaternaries
    Patent number: 4220581
    Abstract: The castor based quaternaries of the instant invention are prepared by condensing a castor fatty acid with the amino protons of a diamine containing a tertiary amino group at one end to form an intermediate product and then quaternizing the intermediate product.
    Type: Grant
    Filed: July 1, 1977
    Date of Patent: September 2, 1980
    Assignee: NL Industries, Inc.
    Inventors: Murray C. Cooperman, Francis Duneczky, Francis C. Naughton, Robert W. White