Patents by Inventor Pulikkottil J. Thomas

Pulikkottil J. Thomas 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 systems for olefin polymerization
    Patent number: 10214622
    Abstract: The instant invention provides procatalysts and catalyst systems for olefin polymerization, olefin based polymers polymerized therewith, and process for producing the same.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: February 26, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Jerzy Klosin, Ruth Figueroa, Pulikkottil J. Thomas, Mehmet Demirors, Sylvie Desjardins, Mridula Kapur, Philip P. Fontaine
  • Polymerization process for producing ethylene based polymers
    Patent number: 10214602
    Abstract: The instant invention provides a polymerization process for producing ethylene based polymers.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: February 26, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Mehmet Demirors, Ruth Figueroa, Jerzy Klosin, Pulikkottil J. Thomas, Sylvie Desjardins, Mridula Kapur, Philip P. Fontaine
  • Polymerization process for producing ethylene based polymers
    Patent number: 10059787
    Abstract: The instant invention provides a polymerization process for producing ethylene based polymers.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: August 28, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: Mehmet Demirors, Ruth Figueroa, Jerzy Klosin, Pulikkottil J. Thomas, Sylvie Desjardins, Mridula Kapur, Philip P. Fontaine
  • CATALYST SYSTEMS FOR OLEFIN POLYMERIZATION
    Publication number: 20180009958
    Abstract: The instant invention provides procatalysts and catalyst systems for olefin polymerization, olefin based polymers polymerized therewith, and process for producing the same.
    Type: Application
    Filed: July 18, 2017
    Publication date: January 11, 2018
    Applicant: Dow Global Technologies LLC
    Inventors: Jerzy Klosin, Ruth Figueroa, Pulikkottil J. Thomas, Mehmet Demirors, Sylvie Desjardins, Mridula Kapur, Philip P. Fontaine
  • Catalyst systems for olefin polymerization
    Patent number: 9751998
    Abstract: The instant invention provides procatalysts and catalyst systems for olefin polymerization, olefin based polymers polymerized therewith, and process for producing the same. In one embodiment, the instant invention provides a procatalyst comprising a metal-ligand complex of formula (I).
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: September 5, 2017
    Assignee: Dow Global Technologies LLC
    Inventors: Jerzy Klosin, Ruth Figueroa, Pulikkottil J. Thomas, Mehmet Demirors, Sylvie Desjardins, Mridula Kapur, Philip P. Fontaine
  • POLYMERIZATION PROCESS FOR PRODUCING ETHYLENE BASED POLYMERS
    Publication number: 20170066858
    Abstract: The instant invention provides a polymerization process for producing ethylene based polymers.
    Type: Application
    Filed: November 21, 2016
    Publication date: March 9, 2017
    Inventors: Mehmet Demirors, Ruth Figueroa, Jerzy Klosin, Pulikkottil J. Thomas, Sylvie Desjardins, Mridula Kapur, Philip P. Fontaine
  • POLYMERIZATION PROCESS FOR PRODUCING ETHYLENE BASED POLYMERS
    Publication number: 20170066859
    Abstract: The instant invention provides a polymerization process for producing ethylene based polymers.
    Type: Application
    Filed: November 21, 2016
    Publication date: March 9, 2017
    Inventors: Mehmet Demirors, Ruth Figueroa, Jerzy Klosin, Pulikkottil J. Thomas, Sylvie Desjardins, Mridula Kapur, Philip P. Fontaine
  • Polymerization process for producing ethylene based polymers
    Patent number: 9527940
    Abstract: The instant invention provides a polymerization process for producing ethylene based polymers.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: December 27, 2016
    Assignee: Dow Global Technologies LLC
    Inventors: Mehmet Demirors, Ruth Figueroa, Jerzy Klosin, Pulikkottil J. Thomas, Sylvie Desjardins, Mridula Kapur, Philip P. Fontaine
  • Polymerization process for producing ethylene based polymers
    Patent number: 9527941
    Abstract: The instant invention provides a polymerization process for producing ethylene based polymers.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: December 27, 2016
    Assignee: Dow Global Technologies LLC
    Inventors: Mehmet Demirors, Ruth Figueroa, Jerzy Klosin, Pulikkottil J. Thomas, Sylvie Desjardins, Mridula Kapur, Philip P. Fontaine
  • Process for producing low molecular weight ethylene- and alpha-olefin-based materials
    Patent number: 9522855
    Abstract: The present invention generally relates to a process that prepares polyethylenes, poly-?-olefins or poly(co-ethylene-?-olefin) having backbone weight average molecular weights less than 2500 daltons. The process uses a metal-ligand complex as a precatalyst and can be carried out at temperatures ranging from 30° C. to 300° C. The relatively low molecular weight of the products enables improved viscosity control for a wide variety of applications.
    Type: Grant
    Filed: November 28, 2012
    Date of Patent: December 20, 2016
    Assignee: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Jerzy Klosin, Pulikkottil J. Thomas
  • Aromatic polyacetals and articles comprising them
    Patent number: 9410016
    Abstract: A polymer includes repeat units having the structure wherein R1, R2, Ar1, Ar2, and Ar3 are defined herein. The polymer can be prepared by Suzuki polycondensation. The acetal and/or ketal functionality in the polymer backbone make the backbone-cleavable in acid. The polymer is useful in applications including lithographic photoresists.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: August 9, 2016
    Assignee: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Matthias S. Ober, Duane R. Romer, John B. Etienne, Pulikkottil J. Thomas
  • An Ethylene Based Polymer
    Publication number: 20150344601
    Abstract: The instant invention provides an ethylene based polymer.
    Type: Application
    Filed: December 10, 2013
    Publication date: December 3, 2015
    Applicant: Dow Global Technologies LLC
    Inventors: Mehmet Demirors, Ruth Figueroa, Jerzy Klosin, Pulikkottil J. Thomas, Sylvie Desjardins, Mridula Kapur, Philip P. Fontaine
  • A Polymerization Process for Producing Ethylene Based Polymers
    Publication number: 20150344602
    Abstract: The instant invention provides a polymerization process for producing ethylene based polymers.
    Type: Application
    Filed: December 10, 2013
    Publication date: December 3, 2015
    Inventors: Mehmet Demirors, Ruth Figueroa, Jerzy Klosin, Pulikkottil J. Thomas, Sylvie Desjardins, Mridula Kapur, Philip P. Fontaine
  • Ethylene Based Polymer
    Publication number: 20150337062
    Abstract: The instant invention provides an ethylene based polymer.
    Type: Application
    Filed: December 10, 2013
    Publication date: November 26, 2015
    Inventors: Mehmet Demirors, Ruth Figueroa, Jerzy Klosin, Pulikkottil J. Thomas, Sylvie Desjardins, Mridula Kapur, Philip P. Fontaine
  • Polymerization Process for Producing Ethylene Based Polymers
    Publication number: 20150337063
    Abstract: The instant invention provides a polymerization process for producing ethylene based polymers.
    Type: Application
    Filed: December 10, 2013
    Publication date: November 26, 2015
    Inventors: Mehmet DEMIRORS, Ruth FIGUEROA, Jerzy KLOSIN, Pulikkottil J. THOMAS, Sylvie DESJARDINS, Mridula KAPUR, Philip P. FONTAINE
  • CATALYST SYSTEMS FOR OLEFIN POLYMERIZATION
    Publication number: 20150291713
    Abstract: The instant invention provides procatalysts and catalyst systems for olefin polymerization, olefin based polymers polymerized therewith, and process for producing the same. In one embodiment, the instant invention provides a procatalyst comprising a metal-ligand complex of formula (I).
    Type: Application
    Filed: December 10, 2013
    Publication date: October 15, 2015
    Inventors: Jerzy Klosin, Ruth Figueroa, Pulikkottil J. Thomas, Mehmet Demirors, Sylvie Desjardins, Mridula Kapur, Philip P. Fontaine
  • Process for polymerizing a polymerizable olefin and catalyst therefor
    Patent number: 9029487
    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: Grant
    Filed: August 24, 2011
    Date of Patent: May 12, 2015
    Assignee: Dow Global Technologies LLC
    Inventors: Jerzy Klosin, Pulikkottil J. Thomas, Carl N. Iverson, Nermeen W. Aboelella, Kevin A. Frazier
  • Process for selectively polymerizing ethylene and catalyst therefor
    Patent number: 9000108
    Abstract: The present invention generally relates to a process that selectively polymerizes ethylene in the presence of an alpha-olefin, and to a metal-ligand complex (precatalyst) and catalyst useful in such processes, and to related compositions. The present invention also generally relates to ligands and intermediates useful for preparing the metal-ligand complex and to processes of their preparation.
    Type: Grant
    Filed: November 11, 2013
    Date of Patent: April 7, 2015
    Assignee: Dow Global Technologies LLC
    Inventors: Jerzy Klosin, Pulikkottil J. Thomas, Robert D. Froese, Xiuhua Cui
  • BIS(ARYL)ACETAL COMPOUNDS
    Publication number: 20150025262
    Abstract: A bis(aryl)acetal has the formula wherein Y1 and Y2 are each independently chloro, bromo, iodo, mesylate, tosylate, triflate, or Bx, provided that Y1 and Y2 are not both selected from chloro, bromo, and iodo; each occurrence of Bx is independently a boron-containing functional group bonded to Ar1 or Ar2 via a boron atom; Ar1 and Ar2 are each independently unsubstituted or substituted C6-18 arylene, or unsubstituted or substituted C3-18 heteroarylene; provided that Ar1 and Ar2 are not covalently linked to each other to form a ring structure that includes -Ar1-O—C—O-Ar2-; and R1 and R2 are each independently hydrogen, unsubstituted or substituted C1-18 linear or branched alkyl, unsubstituted or substituted C3-20 cycloalkyl, unsubstituted or substituted C6-18 aryl, or unsubstituted or substituted C3-20 heteroaryl. The bis(aryl)acetal is useful as a monomer for oligoacetal and polyacetal synthesis via Suzuki polycondensation.
    Type: Application
    Filed: July 16, 2013
    Publication date: January 22, 2015
    Inventors: Matthias S. OBER, Duane R. ROMER, John B. ETIENNE, Pulikkottil J. THOMAS
  • AROMATIC POLYACETALS AND ARTICLES COMPRISING THEM
    Publication number: 20150025278
    Abstract: A polymer includes repeat units having the structure wherein R1, R2, Ar1, Ar2, and Ar3 are defined herein. The polymer can be prepared by Suzuki polycondensation. The acetal and/or ketal functionality in the polymer backbone make the backbone-cleavable in acid. The polymer is useful in applications including lithographic photoresists.
    Type: Application
    Filed: July 16, 2013
    Publication date: January 22, 2015
    Inventors: Matthias S. OBER, Duane R. ROMER, John B. ETIENNE, Pulikkottil J. THOMAS