Patents by Inventor Wendy S. Gustavich

Wendy S. Gustavich 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).

  • Faster cure polyaspartic resins for faster physical property development in coatings
    Patent number: 11827788
    Abstract: A polyaspartate composition is provided which comprises a reaction product of a diamine and a diester reacted at a ratio of diamine equivalents to diester equivalents of from 1:0.95 to 1:0.50. The polyaspartate compositions of the invention may be combined with polyisocyanates to produce polyurea compositions, e.g., coatings, adhesives, sealants, composites, castings, and films, which exhibit a faster cure time along with faster development time for physical properties such as hardness and tensile strength.
    Type: Grant
    Filed: October 7, 2019
    Date of Patent: November 28, 2023
    Assignee: Covestro LLC
    Inventors: Matthew Stewart, Joseph Pierce, Wendy S. Gustavich, Michael Jeffries, Robert A. Wade, Myron W. Shaffer
  • Faster cure polyaspartic resins for faster physical property development in coatings
    Patent number: 11732132
    Abstract: A polyaspartate composition is provided which comprises a reaction product of a diamine and a diester reacted at a ratio of diamine equivalents to diester equivalents of from 1:0.95 to 1:0.50. The polyaspartate compositions of the invention may be combined with polyisocyanates to produce polyurea compositions, e.g., coatings, adhesives, sealants, composites, castings, and films, which exhibit a faster cure time along with faster development time for physical properties such as hardness and tensile strength.
    Type: Grant
    Filed: October 7, 2019
    Date of Patent: August 22, 2023
    Assignee: Covestro LLC
    Inventors: Matthew Stewart, Joseph Pierce, Wendy S. Gustavich, Michael Jeffries, Robert A. Wade, Myron W. Shaffer
  • POLYASPARTATE COMPOSITIONS
    Publication number: 20210230365
    Abstract: A polyaspartate composition can include a reaction product of a diamine and an amine-reactive component. The amine reactive-component can include a diester and an acrylate combined at an equivalent ratio of diester equivalents to acrylate equivalents of from less than 0.9:greater than 0.1 to greater than 0.3:less than 0.7. The diamine and the amine-reactive component can be combined at an equivalent ratio of diamine equivalents to amine-reactive component equivalents of from 1:0.8 to 0.8:1.
    Type: Application
    Filed: January 22, 2021
    Publication date: July 29, 2021
    Inventors: Matthew Stewart, Joseph Pierce, Michael K. Jeffries, Wendy S. Gustavich, Charles A. Gambino, Andrew Bradburn, Robert A. Wade, Myron W. Shaffer
  • FASTER CURE POLYASPARTIC RESINS FOR FASTER PHYSICAL PROPERTY DEVELOPMENT IN COATINGS
    Publication number: 20210102064
    Abstract: A polyaspartate composition is provided which comprises a reaction product of a diamine and a diester reacted at a ratio of diamine equivalents to diester equivalents of from 1:0.95 to 1:0.50. The polyaspartate compositions of the invention may be combined with polyisocyanates to produce polyurea compositions, e.g., coatings, adhesives, sealants, composites, castings, and films, which exhibit a faster cure time along with faster development time for physical properties such as hardness and tensile strength.
    Type: Application
    Filed: October 7, 2019
    Publication date: April 8, 2021
    Inventors: Matthew Stewart, Joseph Pierce, Wendy S. Gustavich, Michael Jeffries, Robert A. Wade, Myron W. Shaffer
  • ALLOPHANATE MODIFIED DIPHENYLMETHANE DIISOCYANATES, PREPOLYMERS THEREOF, AND THEIR USE IN THE PREPARATION OF POLYUREAS AND POLYURETHANES
    Publication number: 20110263797
    Abstract: This invention relates to novel allophanate-modified diphenylmethane diisocyanates, prepolymers of these allophanate-modified diphenylmethane diisocyanates, and two-component polyureas and one-component polyureaurethanes prepared from these prepolymers. In addition, the invention also relates to processes for the preparation of these various compositions, and to the preparation of sealants from the two-component polyureas and caulking agents from the one-component polyureaurethanes.
    Type: Application
    Filed: July 1, 2011
    Publication date: October 27, 2011
    Applicant: BAYER MATERIALSCIENCE LLC
    Inventors: JAY A JOHNSTON, KARL W. HAIDER, WENDY S. GUSTAVICH
  • Allophanate modified diphenylmethane diisocyanates, prepolymers thereof, and their use in the preparation of polyureas and polyurethanes
    Publication number: 20090030161
    Abstract: This invention relates to novel allophanate-modified diphenylmethane diisocyanates, prepolymers of these allophanate-modified diphenylmethane diisocyanates, and two-component polyureas and one-component polyureaurethanes prepared from these prepolymers. In addition, the invention also relates to processes for the preparation of these various compositions, and to the preparation of sealants from the two-component polyureas and caulking agents from the one-component polyureaurethanes.
    Type: Application
    Filed: July 27, 2007
    Publication date: January 29, 2009
    Inventors: Jay A. Johnston, Karl W. Haider, Wendy S. Gustavich