Patents by Inventor John Guzi, Jr.

John Guzi, Jr. 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: 4127422
    Abstract: Dry pigment compositions which are easily dispersed in aqueous systems are described. The compositions contain 55 to 80% of a pigment and 45 to 20% of a nonionic material comprising, by weight of the pigment, 15 to 45% of a nonionic dispersing agent and 10 to about 67% of a water-dispersible, at least partially hydrolyzed polymer of vinyl acetate or a polymer of an N-vinyl pyrrolidone.
    Type: Grant
    Filed: May 25, 1977
    Date of Patent: November 28, 1978
    Assignee: Hercules Incorporated
    Inventors: John Guzi, Jr., William J. Hart
  • Patent number: 4056402
    Abstract: Dry, non-dusting pigment compositions which are water-dispersible and which develop good strength and color values upon stirring in water-borne industrial finish systems are described. The pigment compositions contain 55 to 80% pigment and, by weight of the pigment, from 15 to 45% of certain nonionic dispersing agents and from 10 to 67% of at least one water-soluble cellulose ether which is nonionic in nature and has a viscosity of less than 1000 cps. as measured on a 2% aqueous solution at 25.degree. C. The pigment compositions are preferably prepared by milling the pigment in water in the presence of the nonionic dispersing agent, mixing the milled pigment dispersion with the cellulose ether and then removing the water from the resulting mixture.
    Type: Grant
    Filed: August 24, 1976
    Date of Patent: November 1, 1977
    Assignee: Hercules Incorporated
    Inventor: John Guzi, Jr.