Patents by Inventor Marilyn Bokota

Marilyn Bokota 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).

  • Pseudo-block copolymers and process employing chain shuttling agent
    Patent number: 7989551
    Abstract: A process for the polymerization of one or more addition polymerizable monomers to form a copolymer comprising multiple regions or segments of differentiated polymer composition or properties comprising contacting an addition polymerizable monomer or mixture of monomers under addition polymerization conditions with a composition comprising at least one olefin polymerization catalyst, a cocatalyst and a chain shuttling agent, said process being characterized by formation of at least some of the growing polymer chains under differentiated process conditions such that two or more blocks or segments formed within at least some of the resulting polymer are chemically or physically distinguishable.
    Type: Grant
    Filed: January 30, 2006
    Date of Patent: August 2, 2011
    Assignee: Dow Global Technologies LLC
    Inventors: Daniel J. Arriola, Edmund M. Carnahan, Marilyn Bokota, Phillip D. Hustad, Roger L. Kuhlman, Timothy T. Wenzel, Pamela J. Stirn
  • PSEUDO-BLOCK COPOLYMERS AND PROCESS EMPLOYING CHAIN SHUTTLING AGENT
    Publication number: 20090111944
    Abstract: A process for the polymerization of one or more addition polymerizable monomers to form a copolymer comprising multiple regions or segments of differentiated polymer composition or properties comprising contacting an addition polymerizable monomer or mixture of monomers under addition polymerization conditions with a composition comprising at least one olefin polymerization catalyst, a cocatalyst and a chain shuttling agent, said process being characterized by formation of at least some of the growing polymer chains under differentiated process conditions such that two or more blocks or segments formed within at least some of the resulting polymer are chemically or physically distinguishable.
    Type: Application
    Filed: January 30, 2006
    Publication date: April 30, 2009
    Inventors: Roger L. Kuhlman, Timothy T. Wenzel, Daniel J. Arriola, Marilyn Bokota, Edmund M. Carnahan, Phillip D. Hustad, Pamela J. Stirn
  • Process for manufacture of polymers
    Publication number: 20060004157
    Abstract: A process for preparing interpolymers of ethylene and one or more C3-8 olefin monomers comprising contacting a monomer mixture comprising ethylene and one or more C3-8 olefin monomers with a catalyst composition comprising a Group 4 metal complex of a polyvalent, Lewis base ligand under addition polymerization conditions.
    Type: Application
    Filed: September 12, 2003
    Publication date: January 5, 2006
    Inventors: Daniel Arriola, Marilyn Bokota, Francis Timmers
  • Polymerization process
    Patent number: 6630545
    Abstract: An improved catalyst composition for addition polymerizations comprising: (A) a Group 4 metal complex the includes an anionic, polycyclic, fused ring ligand system containing at least 4 fused rings, and bonded to M by means of delocalized &pgr;-electrons, (B) a cocatalyst, and (C) a C4-5 conjugated diene.
    Type: Grant
    Filed: September 17, 2001
    Date of Patent: October 7, 2003
    Assignee: The Dow Chemical Company
    Inventors: Daniel J. Arriola, Marilyn Bokota, Francis J. Timmers
  • Polymerization process
    Publication number: 20020037981
    Abstract: An improved catalyst composition for addition polymerizations comprising: (A) a Group 4 metal complex the includes an anionic, polycyclic, fused ring ligand system containing at least 4 fused rings, and bonded to M by means of delocalized &pgr;-electrons, (B) a cocatalyst, and (C) a C4-5 conjugated diene.
    Type: Application
    Filed: September 17, 2001
    Publication date: March 28, 2002
    Inventors: Daniel J. Arriola, Marilyn Bokota, Francis J. Timmers