Patents by Inventor James R. Beren

James R. Beren 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).

  • Patent number: 9150717
    Abstract: A process of extruding a blend of an irradiated first propylene polymer and a non-irradiated second propylene polymer, where the first propylene polymer comprises a non-phenolic stabilizer. The irradiation of the first propylene polymer extrudate is conducted in a reduced oxygen environment, and the irradiated first propylene polymer and the non-irradiated second propylene polymer are blended at a temperature below their respective melting points. The blend has a viscosity retention of 20 to 35%.
    Type: Grant
    Filed: October 2, 2013
    Date of Patent: October 6, 2015
    Assignee: Equistar Chemicals, LP
    Inventors: Chun Lee, Dinshong Dong, Charles S. Holland, James R. Beren
  • Publication number: 20140031462
    Abstract: A process of extruding a blend of an irradiated first propylene polymer and a non-irradiated second propylene polymer, where the first propylene polymer comprises a non-phenolic stabilizer. The irradiation of the first propylene polymer extrudate is conducted in a reduced oxygen environment, and the irradiated first propylene polymer and the non-irradiated second propylene polymer are blended at a temperature below their respective melting points. The blend has a viscosity retention of 20 to 35%.
    Type: Application
    Filed: October 2, 2013
    Publication date: January 30, 2014
    Applicant: Equistar Chemicals, LP
    Inventors: Chun Lee, Dinshong Dong, Charles S. Holland, James R. Beren
  • Patent number: 8575252
    Abstract: A process of extruding a blend of an irradiated first propylene polymer and a non-irradiated second propylene polymer, where the first propylene polymer comprises a non-phenolic stabilizer. The irradiation of the first propylene polymer extrudate is conducted in a reduced oxygen environment, and the irradiated first propylene polymer and the non-irradiated second propylene polymer are blended at a temperature below their respective melting points. The blend has a viscosity retention of 20 to 35%.
    Type: Grant
    Filed: February 9, 2011
    Date of Patent: November 5, 2013
    Assignee: Equistar Chemicals, LP
    Inventors: Chun Lee, Dinshong Dong, Charles S. Holland, James R. Beren, Anthony J. De Nicola, Jr.
  • Patent number: 8546504
    Abstract: The present invention relates to a process comprising extruding a blend of an first propylene polymer comprising a non-phenolic stabilizer and a non-irradiated second propylene polymer, wherein the irradiation of the first propylene polymer was conducted in a reduced oxygen environment, and the irradiated first propylene polymer and the non-irradiated second propylene polymer were blended at a temperature below the melting point of the first and second propylene polymers.
    Type: Grant
    Filed: February 9, 2011
    Date of Patent: October 1, 2013
    Assignee: Equistar Chemicals, LP
    Inventors: Chun Lee, Dinshong Dong, Charles S. Holland, James R. Beren, Anthony J. De Nicola, Jr., Sameer D. Mehta, Vu A. Dang, Richard J. Fezza
  • Patent number: 8389632
    Abstract: A process of extruding a blend of an irradiated extrudate of a first propylene polymer and a non-irradiated second propylene polymer, where the first propylene polymer comprises a non-phenolic stabilizer. The irradiation of the first propylene polymer extrudate is conducted in a reduced oxygen environment, and the irradiated extrudate of the first propylene polymer and the non-irradiated second propylene polymer are blended at a temperature below their respective melting points. The blend has an ARPSW of ?3.0 micron.
    Type: Grant
    Filed: February 9, 2011
    Date of Patent: March 5, 2013
    Assignee: Equistar Chemicals, LP
    Inventors: Chun Lee, Charles S. Holland, James R. Beren, Anthony J. De Nicola, Jr.
  • Publication number: 20120202933
    Abstract: A process of extruding a blend of an irradiated extrudate of a first propylene polymer and a non-irradiated second propylene polymer, where the first propylene polymer comprises a non-phenolic stabilizer. The irradiation of the first propylene polymer extrudate is conducted in a reduced oxygen environment, and the irradiated extrudate of the first propylene polymer and the non-irradiated second propylene polymer are blended at a temperature below their respective melting points. The blend has an ARPSW of ?3.0 micron.
    Type: Application
    Filed: February 9, 2011
    Publication date: August 9, 2012
    Applicant: EQUISTAR CHEMICALS, LP
    Inventors: Chun LEE, Charles S. HOLLAND, James R. BEREN, Anthony J. DE NICOLA, JR.
  • Publication number: 20120199278
    Abstract: A process of extruding a blend of an irradiated first propylene polymer and a non-irradiated second propylene polymer, where the first propylene polymer comprises a non-phenolic stabilizer. The irradiation of the first propylene polymer extrudate is conducted in a reduced oxygen environment, and the irradiated first propylene polymer and the non-irradiated second propylene polymer are blended at a temperature below their respective melting points. The blend has a viscosity retention of 20 to 35%.
    Type: Application
    Filed: February 9, 2011
    Publication date: August 9, 2012
    Applicant: EQUISTAR CHEMICALS, LP
    Inventors: Chun LEE, Dinshong DONG, Charles S. HOLLAND, James R. BEREN, Anthony J. DE NICOLA, JR.
  • Publication number: 20120199279
    Abstract: The present invention relates to a process comprising extruding a blend of an first propylene polymer comprising a non-phenolic stabilizer and a non-irradiated second propylene polymer, wherein the irradiation of the first propylene polymer was conducted in a reduced oxygen environment, and the irradiated first propylene polymer and the non-irradiated second propylene polymer were blended at a temperature below the melting point of the first and second propylene polymers.
    Type: Application
    Filed: February 9, 2011
    Publication date: August 9, 2012
    Applicant: EQUISTAR CHEMICALS, LP
    Inventors: Chun LEE, Anthony J. DE NICOLA, JR., Vu A. DANG, Richard J. FEZZA, Dinshong DONG, Charles S. HOLLAND, Sameer D. MEHTA, James R. BEREN
  • Publication number: 20040137191
    Abstract: A carpet having improved tuft and fiber lock, which includes: (i) a primary carpet fabric, (ii) a secondary carpet backing or backcoat material of an olefin polymer material, and (iii) an acrylate adhesive applied to the primary carpet fabric.
    Type: Application
    Filed: January 15, 2003
    Publication date: July 15, 2004
    Inventor: James R. Beren
  • Patent number: 6143825
    Abstract: An adhesive composition suitable for coating onto a substrate, containing a blend of the following components:(a) a propylene polymer;(b) a high melt strength propylene polymer having a branching index of less than 0.9 or a melt tension of 3 to 28 cN; and(c) a modified propylene polymer grafted with an unsaturated compound having a polar group. Also disclosed is a coated article including (a) a primer-coated substrate, and (b) a layer of the composition applied to the primer surface of the primer-coated substrate.
    Type: Grant
    Filed: May 14, 1999
    Date of Patent: November 7, 2000
    Assignee: Montell Technology Company BV
    Inventors: James R. Beren, Edward M. Phillips
  • Patent number: 5552104
    Abstract: A normally solid, high molecular weight, gel-free, irradiated ethylene polymer is characterized by high melt strength due to strain hardening elongational viscosity, which is believed to be caused by free-end long chain branching of the molecular chains forming the polymer. The polymer is prepared by (1) irradiating a normally solid, high molecular weight ethylene polymer without strain hardening elongational viscosity while in the solid state in an environment in which the active oxygen concentration is less than 15% by volume, maintaining the irradiated material in this environment while in the solid state for a specific period of time, and then deactivating free radicals present in the material.
    Type: Grant
    Filed: April 13, 1995
    Date of Patent: September 3, 1996
    Assignee: Montell North America Inc.
    Inventors: Anthony J. DeNicola, Jr., John W. Mayfield, Thomas F. McLaughlin, James R. Beren
  • Patent number: 5508319
    Abstract: Disclosed is a normally solid, high molecular weight, gel-free, irradiated ethylene polymer having a density of from 0.89 to 0.97 g/cc characterized by high melt strength due to strain hardening which is believed to be caused by free-end long chain branches of the molecular chains forming the polymer.Also disclosed is a process for making the polymer by high energy radiation of a normally solid, high molecular weight, ethylene polymer in a reduced active oxygen environment, maintaining the irradiated material in such environment for a specific period of time, and then deactivating free radicals in the material.
    Type: Grant
    Filed: August 19, 1994
    Date of Patent: April 16, 1996
    Assignee: Montell North America Inc.
    Inventors: Anthony J. DeNicola, Jr., John W. Mayfield, Thomas F. McLaughlin, James R. Beren