Patents by Inventor William Gandy

William Gandy 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).

  • High purity diphenyl sulfone, preparation and use thereof for the preparation of a poly(aryletherketone)
    Patent number: 9765185
    Abstract: The presence of certain impurities in diphenyl sulfone have a deleterious effect on the properties of the poly(aryletherketone)s produced therein, including one or more of color, melt stability, molecular weight, crystallinity, etc. and here identify those impurities and provide processes for the recovery of the diphenyl sulfone.
    Type: Grant
    Filed: August 10, 2015
    Date of Patent: September 19, 2017
    Assignee: Solvay Advanced Polymers, L.L.C.
    Inventors: Chantal Louis, William Gandy, Edward Ryan, Geoffrey Scott Underwood, Kong Yi
  • HIGH PURITY DIPHENYL SULFONE, PREPARATION AND USE THEREOF FOR THE PREPARATION OF A POLY(ARYLETHERKETONE)
    Publication number: 20150344418
    Abstract: The presence of certain impurities in diphenyl sulfone have a deleterious effect on the properties of the poly(aryletherketone)s produced therein, including one or more of color, melt stability, molecular weight, crystallinity, etc. and here identify those impurities and provide processes for the recovery of the diphenyl sulfone.
    Type: Application
    Filed: August 10, 2015
    Publication date: December 3, 2015
    Applicant: Solvay Advanced Polymers, LLC
    Inventors: Chantal Louis, William Gandy, Edward Ryan, Geoffrey Scott Underwood, Kong Yi
  • High purity diphenyl sulfone, preparation and use thereof for the preparation of a poly(aryletherketone)
    Patent number: 9133111
    Abstract: The presence of certain impurities in diphenyl sulfone have a deleterious effect on the properties of the poly(aryletherketone)s produced therein, including one or more of color, melt stability, molecular weight, crystallinity, etc. and here identify those impurities and provide processes for the recovery of the diphenyl sulfone.
    Type: Grant
    Filed: April 7, 2014
    Date of Patent: September 15, 2015
    Assignee: Solvay Advanced Polymers, L.L.C.
    Inventors: Chantal Louis, William Gandy, Edward Ryan, Geoffrey Scott Underwood, Kong Yi
  • Poly(aryletherketone)s and process for making them
    Patent number: 8969504
    Abstract: Poly(aryletherketone)s comprising fluoride end groups having improved melt stability, lower gel content and lower color are provided.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: March 3, 2015
    Assignee: Solvay Specialty Polymers USA, L.L.C.
    Inventors: Chantal Louis, Satchit Srinivasan, William Gandy
  • HIGH PURITY DIPHENYL SULFONE, PREPARATION AND USE THEREOF FOR THE PREPARATION OF A POLY(ARYLETHERKETONE)
    Publication number: 20140221595
    Abstract: The presence of certain impurities in diphenyl sulfone have a deleterious effect on the properties of the poly(aryletherketone)s produced therein, including one or more of color, melt stability, molecular weight, crystallinity, etc. and here identify those impurities and provide processes for the recovery of the diphenyl sulfone.
    Type: Application
    Filed: April 7, 2014
    Publication date: August 7, 2014
    Applicant: SOLVAY ADVANCED POLYMERS, LLC
    Inventors: Chantal Louis, William Gandy, Edward Ryan, Geoffrey Scott Underwood, Kong Yi
  • POLY(ARYLETHERKETONE)S AND PROCESS FOR MAKING THEM
    Publication number: 20140163192
    Abstract: Poly(aryletherketone)s comprising fluoride end groups having improved melt stability, lower gel content and lower color are provided.
    Type: Application
    Filed: December 5, 2013
    Publication date: June 12, 2014
    Applicant: SOLVAY ADVANCED POLYMERS, L.L.C.
    Inventors: Chantal Louis, Satchit Srinivasan, William Gandy
  • High purity diphenyl sulfone, preparation and use thereof for the preparation of a poly(aryletherketone)
    Patent number: 8710171
    Abstract: The presence of certain impurities in diphenyl sulfone have a deleterious effect on the properties of the poly(aryletherketone)s produced therein, including one or more of color, melt stability, molecular weight, crystallinity, etc. and here identify those impurities and provide processes for the removal of such impurities.
    Type: Grant
    Filed: October 23, 2009
    Date of Patent: April 29, 2014
    Assignee: Solvay Advanced Polymers, L.L.C.
    Inventors: Chantal Louis, William Gandy, Edward Ryan, Geoffrey Scott Underwood, Kong Yi
  • Poly(aryletherketone)s and process for making them
    Patent number: 8642713
    Abstract: Improved poly(aryletherketone)s with superior melt stability, lower gel content and lower color and a new process for their manufacture.
    Type: Grant
    Filed: August 8, 2008
    Date of Patent: February 4, 2014
    Assignee: Solvay Advanced Polymers, L.L.C.
    Inventors: Chantal Louis, Satchit Srinivasan, William Gandy
  • Improved poly(aryletherketone)s and process for making them
    Publication number: 20110224399
    Abstract: Improved poly(aryletherketone)s with superior melt stability, lower gel content and lower color and a new process for their manufacture.
    Type: Application
    Filed: August 8, 2008
    Publication date: September 15, 2011
    Applicant: SOLVAY ADVANCED POLYMERS, L.L.C.
    Inventors: Chantal Louis, Satchit Srinivasan, William Gandy
  • High purity diphenyl sulfone, preparation and use thereof for the preparation of a poly(aryletherketone)
    Publication number: 20110201775
    Abstract: The presence of certain impurities in diphenyl sulfone have a deleterious effect on the properties of the poly(aryletherketone)s produced therein, including one or more of color, melt stability, molecular weight, crystallinity, etc. and here identify those impurities and provide processes for the removal of such impurities.
    Type: Application
    Filed: October 23, 2009
    Publication date: August 18, 2011
    Applicant: SOLVAY ADVANCED POLYMERS, L.L.C.
    Inventors: Chantal Louis, William Gandy, Edward Ryan, Geoffrey Scott Underwood, Kong Yi