Patents by Inventor Elizabeth G. Zylla

Elizabeth G. Zylla 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).

  • Citric ester diluents
    Patent number: 5157089
    Abstract: Citric ester compositions wherein the ester components contain about 1.5 to about 3 hydroxyl groups per molecule are useful as pigment grinding vehicles and as reactive diluents for thermosetting coatings.
    Type: Grant
    Filed: May 13, 1991
    Date of Patent: October 20, 1992
    Assignee: Hi-Tek Polymers, Inc.
    Inventors: Jimmy D. Elmore, Elizabeth G. Zylla, George A. Roy, II
  • Citric ester diluents
    Patent number: 5089658
    Abstract: Citric ester compositions wherein the ester components contain about 1.5 to about 3 hydroxyl groups per molecule are useful as pigment grinding vehicles and as reactive diluents for thermosetting coatings.
    Type: Grant
    Filed: September 27, 1990
    Date of Patent: February 18, 1992
    Assignee: Hi-Tek Polymers, Inc.
    Inventors: Jimmy D. Elmore, Elizabeth G. Zylla
  • Thermosetting acrylic copolymers modified with citric esters
    Patent number: 4972036
    Abstract: Modified acrylic copolymer compositions are made by polymerizing acrylic monomers in admixture with a citric ester. Such compositions are useful as pigment grinding vehicles and as vehicles for thermosetting coatings.
    Type: Grant
    Filed: August 28, 1989
    Date of Patent: November 20, 1990
    Assignee: Hi-Tek Polymers, Inc.
    Inventors: Jim D. Elmore, Elizabeth G. Zylla, William J. DeGooyer