Patents by Inventor Carl N. Iverson

Carl N. Iverson 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 FOR POLYMERIZING A POLYMERIZABLE OLEFIN AND CATALYST THEREFOR
    Publication number: 20130144018
    Abstract: The present invention generally relates to a process that copolymerizes two or more polymerizable olefins, and to cataclyst comprising a metal-ligand complex (precatalyst). The present invention also generally relates to ligands useful for preparing the metal-ligand complex.
    Type: Application
    Filed: August 24, 2011
    Publication date: June 6, 2013
    Applicant: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Jerzy Klosin, Pulikkottil J. Thomas, Carl N. Iverson, Nermeen W. Aboelella, Kevin A. Frazier
  • Long chain branched propylene-alpha-olefin copolymers
    Patent number: 8420760
    Abstract: Substantially isotaclic propylene interpolyraets comprise (A) at least 60 weight percent (wt %) units derived from propylene, and (B) between greater than zero and 40 wt % units derived from ethylene, the propylene interpolyrner further characterized by at least one of the following properties: (1) a ratio of less than 1 measured at interpolyraer number average molecular weight (Mn), (2) a relative compositional drift of less than 50%, arid (3) propylene chain segments having a chain isotacticity triad index of at least 70 mole percent.
    Type: Grant
    Filed: November 6, 2008
    Date of Patent: April 16, 2013
    Assignee: Dow Global Technologies LLC
    Inventors: Morgan M. Hughes, Patricia Ansems, Carl N. Iverson, Lisa S. Madenjian, Daniel D. VanderLende
  • Hafnium complexes of heterocyclic organic ligands
    Patent number: 8362265
    Abstract: Hafnium complexes of heterocyclic organic ligands having improved solubility in aliphatic hydrocarbon solvents and their use as components of olefin polymerization catalysts as well as novel syntheses of component parts thereof are disclosed.
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: January 29, 2013
    Assignee: Dow Global Technologies, LLC
    Inventors: Paul C. Vosejpka, Harold W. Boone, Kevin A. Frazier, Carl N. Iverson
  • Ethylene/?-olefin/diene solution polymerization process and polymer
    Patent number: 8299189
    Abstract: A catalyst composition comprising a zirconium complex of a polyvalent aryloxyether and the use thereof in a continuous solution polymerization of ethylene, one or more C3-30 olefins, and a conjugated or nonconjugated diene to prepare interpolymers having improved processing properties are disclosed.
    Type: Grant
    Filed: April 24, 2007
    Date of Patent: October 30, 2012
    Assignee: Dow Global Technologies, LLC
    Inventors: Harold W. Boone, Carl N. Iverson, Wayde V. Konze, Daniel D. VanderLende
  • ETHYLENE/a-OLEFIN/DIENE SOLUTION POLYMERIZATION PROCESS AND POLYMER
    Publication number: 20120101241
    Abstract: A catalyst composition comprising a zirconium complex of a polyvalent aryloxyether and the use thereof in a continuous solution polymerization of ethylene, one or more C3-30 olefins, and a conjugated or nonconjugated diene to prepare interpolymers having improved processing properties are disclosed.
    Type: Application
    Filed: April 24, 2007
    Publication date: April 26, 2012
    Inventors: Harold W Boone, Carl N. Iverson, Wayde V. Konze, Daniel D. VanderLende
  • Long Chain Branched Propylene-Alpha-Olefin Copolymers
    Publication number: 20100285253
    Abstract: Substantially isotaclic propylene interpolyraets comprise (A) at least 60 weight percent (wt %) units derived from propylene, and (B) between greater than zero and 40 wt % units derived from ethylene, the propylene interpolyrner further characterized by at least one of the following properties: (1) a ratio of less than 1 measured at interpolyraer number average molecular weight (Mn), (2) a relative compositional drift of less than 50%, arid (3) propylene chain segments having a chain isotacticity triad index of at least 70 mole percent.
    Type: Application
    Filed: November 6, 2008
    Publication date: November 11, 2010
    Inventors: Morgan M. Hughes, Patricia Ansems, Carl N. Iverson, Lisa S. Madenjian, Daniel D. VanderLende
  • ORTHO-METALLATED HAFNIUM COMPLEXES OF IMIDAZOLE LIGANDS
    Publication number: 20090306318
    Abstract: Hafnium complexes of heterocyclic organic imidazol-2-yl ligands containing internal orthometallation and their use as components of olefin polymerization catalyst compositions, especially supported catalyst compositions, are disclosed.
    Type: Application
    Filed: April 26, 2007
    Publication date: December 10, 2009
    Inventors: Harold W. Boone, Joseph N. Coalter, III, Kevin A. Frazier, Carl N. Iverson, Ian M. Munro, Kevin P. Peil, Paul C. Vosejpka
  • HAFNIUM COMPLEXES OF CARBAZOLYL SUBSTITUTED IMIDAZOLE LIGANDS
    Publication number: 20090186996
    Abstract: Hafnium complexes of carbazolyl substituted imidazol ligands and their use as components of olefin polymerization catalyst compositions are disclosed.
    Type: Application
    Filed: April 26, 2007
    Publication date: July 23, 2009
    Inventors: Harold W. Boone, Joseph N. Coalter, III, Kevin A. Frazier, Carl N. Iverson, Ian M. Munro, Kevin P. Peil, Paul C. Vosejpka
  • HAFNIUM COMPLEXES OF HETEROCYCLIC ORGANIC LIGANDS
    Publication number: 20090111956
    Abstract: Hafnium complexes of heterocyclic organic ligands containing internal orthometallation and their use as components of olefin polymerization catalysts, especially for gas-phase olefin polymerizations, are disclosed.
    Type: Application
    Filed: April 26, 2007
    Publication date: April 30, 2009
    Inventors: Harold W. Boone, Joseph N. Coalter III, Kevin A. Frazier, Carl N. Iverson, Ian M. Munro, Paul C. Vosejpka
  • HAFNIUM COMPLEXES OF HETEROCYCLIC ORGANIC LIGANDS
    Publication number: 20090069567
    Abstract: Hafnium complexes of heterocyclic organic ligands having improved solubility in aliphatic hydrocarbon solvents and their use as components of olefin polymerization catalysts as well as novel syntheses of component parts thereof are disclosed.
    Type: Application
    Filed: March 29, 2007
    Publication date: March 12, 2009
    Inventors: Paul C. Vosejpka, Harold W. Boone, Kevin A. Frazier, Carl N. Iverson