Patents by Inventor John H. Hain, JR.

John H. Hain, 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).

  • Process of making modified metallocene catalyst, catalyst produced and use thereof
    Patent number: 9045569
    Abstract: Olefin polymerization catalysts or catalyst systems comprising a mixture, contact product, reaction product or complex comprising as elements or components: (A) at least one metallocene pre-catalyst compound or polymerization active metallocene compound; (B) at least one titanium containing metallocene compound; and when (A) is a metallocene pre-catalyst compound, (C) at least one activator; provided however: (I) the titanium-containing metallocene compound is inactive or substantially inactive for the polymerization of olefins prior to or concurrently with the use of the catalyst system for olefin polymerization.
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: June 2, 2015
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Michael D. Jensen, Michael J. Elder, Andrew G. Singleton, Stephen R. Schmidt, Patrick J. Kerwin, John H. Hain, Jr., Fengjun Hua
  • PROCESS OF MAKING MODIFIED METALLOCENE CATALYST, CATALYST PRODUCED AND USE THEREOF
    Publication number: 20130289227
    Abstract: Olefin polymerization catalysts or catalyst systems comprising a mixture, contact product, reaction product or complex comprising as elements or components: (A) at least one metallocene pre-catalyst compound or polymerization active metallocene compound; (B) at least one titanium containing metallocene compound; and when (A) is a metallocene pre-catalyst compound, (C) at least one activator; provided however: (I) the titanium-containing metallocene compound is inactive or substantially inactive for the polymerization of olefins prior to or concurrently with the use of the catalyst system for olefin polymerization.
    Type: Application
    Filed: January 12, 2012
    Publication date: October 31, 2013
    Applicant: W.R. GRACE & CO.-CONN
    Inventors: Michael D. Jensen, Michael J. Elder, Andrew G. Singleton, Stephen R. Schmidt, Patrick J. Kerwin, John H. Hain, JR., Fengjun Hua