Patents by Inventor Phillip R. James

Phillip R. James 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).

  • Method for improved reactive monomer production with membrane filtration
    Patent number: 10532320
    Abstract: The present invention relates to production processes for reactive monomer species. The method described herein may be used in a variety of reactive monomer production processes to optimize the use of polymerization inhibitor compounds, which may lead to further advantages such as debottlenecking or elimination of process plant separation unit(s). The method provides for the separation of oligomeric/polymeric species, inhibitor compounds and reactive monomer, optionally in the presence of unreacted raw materials or solvent(s), within the production process by means of membrane filtration, particularly through the use of solvent stable membranes, and in particular by applying organic solvent nanofiltration membranes.
    Type: Grant
    Filed: September 22, 2015
    Date of Patent: January 14, 2020
    Assignee: Evonik Degussa GmbH
    Inventors: Andrew Boam, Yuri Bouwhuis, Phillip R. James, Velichka Yordanova Koleva, Felix Nissen
  • METHOD FOR IMPROVED REACTVE MONOMER PRODUCTION WITH MEMBRANE FILTRATION
    Publication number: 20180361319
    Abstract: The present invention relates to production processes for reactive monomer species. The method described herein may be used in a variety of reactive monomer production processes to optimise the use of polymerisation inhibitor compounds, which may lead to further advantages such as debottlenecking or elimination of process plant separation unit(s). The method provides for the separation of oligomeric/polymeric species, inhibitor compounds and reactive monomer, optionally in the presence of unreacted raw materials or solvent(s), within the production process by means of membrane filtration, particularly through the use of solvent stable membranes, and in particular by applying organic solvent nanofiltration membranes.
    Type: Application
    Filed: September 22, 2015
    Publication date: December 20, 2018
    Applicant: Evonik Degussa GmbH
    Inventors: Andrew BOAM, Yuri BOUWHUIS, Phillip R. JAMES, Velichka Yordanova KOLEVA, Felix NISSEN
  • Process and composition for inhibiting the polymerization of cyclopentadiene compounds
    Patent number: 10138183
    Abstract: A process for inhibiting the polymerization of cyclopentadiene compounds (B) by contacting the cyclopentadiene compound with a quinone methide compound (A) of structure (I), Compositions (AB) comprising (A) and (B) are also provided.
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: November 27, 2018
    Assignee: Evonik Degussa GmbH
    Inventors: Stefanie Rinker, Bettina Ludwig, Manfred Neumann, Felix Nissen, Oliver Erpeldinger, Phillip R. James, Peter Watkins
  • Process and composition for inhibiting the polymerization of cyclopentadiene compounds
    Patent number: 9670116
    Abstract: A process for inhibiting the polymerization of cyclopentadiene compounds (B) by contacting the cyclopentadiene compound with a quinone methide compound (A) of structure (I), Compositions (AB) comprising (A) and (B) are also provided.
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: June 6, 2017
    Assignee: Evonik Degussa GmbH
    Inventors: Stefanie Rinker, Bettina Ludwig, Manfred Neumann, Felix Nissen, Oliver Erpeldinger, Phillip R. James, Peter Watkins
  • Process and composition for inhibiting the polymerization of cyclopentadiene compounds
    Patent number: 9493382
    Abstract: A process for inhibiting the polymerization of cyclopentadiene compounds (B) by contacting the cyclopentadiene compound with a quinone methide compound (A) of structure (I), Compositions (AB) comprising (A) and (B) are also provided.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: November 15, 2016
    Assignee: Evonik Degussa GmbH
    Inventors: Stefanie Rinker, Bettina Ludwig, Manfred Neumann, Felix Nissen, Oliver Erpeldinger, Phillip R. James, Peter Watkins
  • PROCESS AND COMPOSITION FOR INHIBITING THE POLYMERIZATION OF CYCLOPENTADIENE COMPOUNDS
    Publication number: 20160237346
    Abstract: A process for inhibiting the polymerization of cyclopentadiene compounds (B) by contacting the cyclopentadiene compound with a quinone methide compound (A) of structure (I), Compositions (AB) comprising (A) and (B) are also provided.
    Type: Application
    Filed: April 25, 2016
    Publication date: August 18, 2016
    Applicant: Evonik Degussa GmbH
    Inventors: Stefanie RINKER, Bettina Ludwig, Manfred Neumann, Felix Nissen, Oliver Erpeldinger, Phillip R. James, Peter Watkins
  • PROCESS AND COMPOSITION FOR INHIBITING THE POLYMERIZATION OF CYCLOPENTADIENE COMPOUNDS
    Publication number: 20160237008
    Abstract: A process for inhibiting the polymerization of cyclopentadiene compounds (B) by contacting the cyclopentadiene compound with a quinone methide compound (A) of structure (I), Compositions (AB) comprising (A) and (B) are also provided.
    Type: Application
    Filed: April 25, 2016
    Publication date: August 18, 2016
    Applicant: Evonik Degussa GmbH
    Inventors: Stefanie RINKER, Bettina Ludwig, Manfred NEUMANN, Felix NISSEN, Oliver ERPELDINGER, Phillip R. JAMES, Peter WATKINS
  • PROCESS AND COMPOSITION FOR INHIBITING THE POLYMERIZATION OF CYCLOPENTADIENE COMPOUNDS
    Publication number: 20140288337
    Abstract: A process for inhibiting the polymerization of cyclopentadiene compounds (B) by contacting the cyclopentadiene compound with a quinone methide compound (A) of structure (I), Compositions (AB) comprising (A) and (B) are also provided.
    Type: Application
    Filed: March 18, 2014
    Publication date: September 25, 2014
    Applicant: Evonik Industries AG
    Inventors: Stefanie RINKER, Bettina Bressel, Manfred Neumann, Felix Nissen, Oliver Erpeldinger, Phillip R. James, Peter Watkins
  • Process for preparing substituted 1,4-quinone methides
    Patent number: 8212081
    Abstract: A method for preparing a substituted 1,4-quinone methide from a 3,5-disubstituted 4-hydroxybenzaldehyde is provided. Also provided is a method to prepare a 3,5-disubstituted 4-hydroxybenzaldehyde from the corresponding 2,6-disubstituted phenol.
    Type: Grant
    Filed: April 20, 2010
    Date of Patent: July 3, 2012
    Assignee: Evonik Degussa GmbH
    Inventors: Stefanie Rinker, Phillip R. James, Manfred Neumann, Oliver Erpeldinger, Frank Kraushaar
  • PROCESS FOR PREPARING SUBSTITUTED 1,4-QUINONE METHIDES
    Publication number: 20100267992
    Abstract: A method for preparing a substituted 1,4-quinone methide from a 3,5-disubstituted 4-hydroxybenzaldehyde is provided. Also provided is a method to prepare a 3,5-disubstituted 4-hydroxybenzaldehyde from the corresponding 2,6-disubstituted phenol.
    Type: Application
    Filed: April 20, 2010
    Publication date: October 21, 2010
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Stefanie RINKER, Phillip R. James, Manfred Neumann, Oliver Erpeldinger, Frank Kraushaar