Patents by Inventor Paul L. Seitz

Paul L. Seitz 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).

  • Patent number: 4055495
    Abstract: Water used to wash the air in paint or lacquer spray booths in order to remove over-sprayed paint or lacquers is treated with a blend of a primary amino alcohol, a polyether polyamine and a water soluble salt of an amphoteric metal to reduce the tackiness of paint and lacquer solids and thereby reduce the tendency of over-sprayed paints and lacquers to adhere to walls, ceilings and floors of said spray booths and also to condition the paint and lacquer solids removed with the water so that they can be separated and the water recycled for further use in washing the air in the spray booth.
    Type: Grant
    Filed: May 24, 1976
    Date of Patent: October 25, 1977
    Assignee: Nalco Chemical Company
    Inventors: Robert K. Gabel, Paul L. Seitz
  • Patent number: 4029708
    Abstract: Linear surfactant polymers, useful in waterflooding processes and as emulsion breakers, can be prepared by reacting various amines, such as hexamethylene diamine, with monofunctional pendant groups, such as propylene oxide, and then further reacting the substituted amines with a difunctional reactant, such as epichlorohydrin, to produce the polymer. The polymers may be combined with certain water-soluble metal salts to improve their efficiency as emulsion breakers and as coagulants.
    Type: Grant
    Filed: February 10, 1975
    Date of Patent: June 14, 1977
    Assignee: Nalco Chemical Company
    Inventors: Paul L. Seitz, Robert K. Gabel
  • Patent number: 3990986
    Abstract: Water used to wash the air in paint or lacquer spray booths in order to remove over-sprayed paint or lacquers is treated with a blend of a primary amino alcohol, a polyether polyamine and a water soluble salt of an amphoteric metal to reduce the tackiness of paint and lacquer solids and thereby reduce the tendency of over-sprayed paints and lacquers to adhere to walls, ceilings and floors of said spray booths and also to condition the paint and lacquer solids removed with the water so that they can be separated and the water recycled for further use in washing the air in the spray booth.
    Type: Grant
    Filed: December 19, 1974
    Date of Patent: November 9, 1976
    Assignee: Nalco Chemical Company
    Inventors: Robert K. Gabel, Paul L. Seitz