Patents by Inventor Sergio Alejandro Guillen-Castellanos

Sergio Alejandro Guillen-Castellanos 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 polymerization in a fluidized bed reactor
    Patent number: 9708427
    Abstract: A polymerization process for stable gas phase reactor start-up when making ethylene copolymers having relatively high molecular weight distribution and melt flow ratio.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: July 18, 2017
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Victoria Ker, Sergio Alejandro Guillen-Castellanos, Yan Jiang
  • PROCESS FOR POLYMERIZATION IN A FLUIDIZED BED REACTOR
    Publication number: 20160347878
    Abstract: A polymerization process for stable gas phase reactor start-up when making ethylene copolymers having relatively high molecular weight distribution and melt flow ratio.
    Type: Application
    Filed: May 24, 2016
    Publication date: December 1, 2016
    Applicant: NOVA Chemicals (International) S.A.
    Inventors: Victoria Ker, Sergio Alejandro Guillen-Castellanos, Yan Jiang
  • Modified phosphinimine catalysts for olefin polymerization
    Patent number: 9315591
    Abstract: Olefin polymerization is carried out with a supported phosphinimine catalyst which has been treated with a long chain substituted amine compound.
    Type: Grant
    Filed: August 19, 2014
    Date of Patent: April 19, 2016
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Peter Phung Minh Hoang, Victoria Ker, Charles Ashton Garret Carter, Sergio Alejandro Guillen-Castellanos
  • Modified phosphinimine catalysts for olefin polymerization
    Patent number: 9221935
    Abstract: Olefin polymerization is carried out with a supported phosphinimine catalyst which has been treated with a long chain substituted amine compound.
    Type: Grant
    Filed: August 19, 2014
    Date of Patent: December 29, 2015
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Peter Phung Minh Hoang, Victoria Ker, Charles Ashton Garret Carter, Sergio Alejandro Guillen-Castellanos, Yan Jiang
  • Controlling resin properties in a gas phase polymerization process
    Patent number: 9062138
    Abstract: Methods for dramatically altering the processability of ethylene copolymers made with a supported phosphinimine polymerization catalyst. The method involves changing the polymerization reactor temperature during the polymerization of ethylene and a least one alpha-olefin when a phosphinimine catalyst which comprises a substituted or unsubstituted indenyl ligand and a phosphinimine type ligand.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: June 23, 2015
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Victoria Ker, Yan Jiang, Sergio Alejandro Guillen-Castellanos
  • MODIFIED PHOSPHINIMINE CATALYSTS FOR OLEFIN POLYMERIZATION
    Publication number: 20140357818
    Abstract: Olefin polymerization is carried out with a supported phosphinimine catalyst which has been treated with a long chain substituted amine compound.
    Type: Application
    Filed: August 19, 2014
    Publication date: December 4, 2014
    Applicant: NOVA Chemicals (International) S.A.
    Inventors: Peter Phung Minh Hoang, Victoria Ker, Charles Ashton Garret Carter, Sergio Alejandro Guillen-Castellanos, Yan Jiang
  • MODIFIED PHOSPHINIMINE CATALYSTS FOR OLEFIN POLYMERIZATION
    Publication number: 20140357819
    Abstract: Olefin polymerization is carried out with a supported phosphinimine catalyst which has been treated with a long chain substituted amine compound.
    Type: Application
    Filed: August 19, 2014
    Publication date: December 4, 2014
    Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.
    Inventors: Peter Phung Minh Hoang, Victoria Ker, Charles Ashton Garret Carter, Sergio Alejandro Guillen-Castellanos
  • CONTROLLING RESIN PROPERTIES IN A GAS PHASE POLYMERIZATION PROCESS
    Publication number: 20140155561
    Abstract: Methods for dramatically altering the processability of ethylene copolymers made with a supported phosphinimine polymerization catalyst. The method involves changing the polymerization reactor temperature during the polymerization of ethylene and a least one alpha-olefin when a phosphinimine catalyst which comprises a substituted or unsubstituted indenyl ligand and a phosphinimine type ligand.
    Type: Application
    Filed: November 8, 2013
    Publication date: June 5, 2014
    Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A
    Inventors: Victoria Ker, Yan Jiang, Sergio Alejandro Guillen-Castellanos