Patents by Inventor Joseph Coalter III

Joseph Coalter III 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).

  • Catalyst composition and system having extended lifetime
    Patent number: 11945896
    Abstract: A Ziegler-Natta catalyst composition is disclosed. The catalyst composition includes an internal electron donor with improved polymerization kinetics, a long lifetime, improved stereoselectivity and/or improved hydrogen response.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: April 2, 2024
    Assignee: W.R. Grace & Co.-CONN.
    Inventors: Joseph Coalter, III, Rose Kent, Adam Marwitz, Ronald Epstein, Michael Elder
  • CATALYST COMPOSITION AND SYSTEM HAVING EXTENDED LIFETIME
    Publication number: 20220380491
    Abstract: A Ziegler-Natta catalyst composition is disclosed. The catalyst composition includes an internal electron donor with improved polymerization kinetics, a long lifetime, improved stereoselectivity and/or improved hydrogen response.
    Type: Application
    Filed: September 10, 2020
    Publication date: December 1, 2022
    Applicant: W.R. Grace & Co.-CONN
    Inventors: Joseph COALTER, III, Rose KENT, Adam MARWITZ, Ronald EPSTEIN, Michael ELDER
  • Morphology controlled olefin polymerization process
    Publication number: 20060142152
    Abstract: A catalyst composition, method of formation and process of use in the polymerization of olefin monomers, said composition comprising a catalyst compound, an activator capable of converting said catalyst compound into an active catalyst for addition polymerization, optionally a carrier, further optionally a liquid diluent, and a hydroxycarboxylate metal salt additive.
    Type: Application
    Filed: February 20, 2004
    Publication date: June 29, 2006
    Inventors: Joseph Coalter III, Curt Theriault, Jan Van Egmond, Roger Painter