Patents Represented by Attorney Carl T. Severin

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  • Electrodeposition of epoxy compositions
    Patent number: 4001101
    Abstract: Synthetic resins which are water-dispersible epoxy resins having epoxy groups, chemically-bound quaternary ammonium base salts, can be dissolved or dispersed in water to provide aqueous coating compositions. Such compositions, in which these resins are the major resinous component, can be applied by electrodeposition and deposit on the cathode to provide coatings of improved properties, including a high degree of resistance to corrosion or staining.
    Type: Grant
    Filed: July 29, 1971
    Date of Patent: January 4, 1977
    Assignee: PPG Industries, Inc.
    Inventors: Joseph F. Bosso, Marco Wismer