Patents by Inventor Warren Reed

Warren Reed 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).

  • Polymer blends
    Patent number: 6608140
    Abstract: A polymer blend is disclosed which comprises a blend of (1) one or more polymers made using a late transition metal catalyst, and (2) one or more polyolefins made using a free radical process or polymerized using a Phillips type (chromium oxide) catalyst, a metallocene catalyst, or a Ziegler-Natta catalyst.
    Type: Grant
    Filed: February 6, 2001
    Date of Patent: August 19, 2003
    Assignee: BP Chemicals Limited
    Inventors: Susan Katherine Christie, Warren Reed, John Norman Reid Samson
  • Polymer blends
    Publication number: 20020004560
    Abstract: A polymer blend is disclosed which comprises a blend of
    Type: Application
    Filed: February 6, 2001
    Publication date: January 10, 2002
    Inventors: Susan Katherine Christie, Warren Reed, John Norman Reid Samson
  • Supported polymerisation catalysts
    Patent number: 6015767
    Abstract: An olefin polymerization catalyst system comprising a complex having the general formula I or II: ##STR1## wherein in formula (I) M is V, Nb or Ta and in formula (II) M is Cr, Mo or W; R is selected from alkyl and aryl, and in formula II the R groups may be the same or different; X is an organic group containing a cyclopentadienyl nucleus, Y is a univalent anionic ligand, the Y groups may be the same or different; n is 0 or 1; the complex of formula (I) or (II) being supported on a substrate comprising a polyaminostyrene or a copolymer of styrene and aminostyrene.
    Type: Grant
    Filed: July 1, 1997
    Date of Patent: January 18, 2000
    Assignee: BP Chemicals Limited
    Inventors: Vernon Charles Gibson, Warren Reed