Patents by Inventor Luc Froment

Luc Froment 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).

  • Controlled catalysis
    Patent number: 8729295
    Abstract: The present invention provides methods of using a novel sulfonated resin catalyst, showing improved performance. The catalyst has reduced or partial functionalization, throughout the sulfonated region of the polymer, leading to reduced by-product formation and other desirable features. This catalyst has particular usefulness in reactions or processes sensitive to high acidity, e.g., esterification-transesterification.
    Type: Grant
    Filed: October 24, 2008
    Date of Patent: May 20, 2014
    Assignee: The Purolite Company
    Inventors: James A. Dale, Luc Froment, Satish Bapat
  • Macroporous copolymers with large pores
    Patent number: 8496121
    Abstract: The present invention provides a macroporous copolymer having large pores, typically in the range of 5,000-200,000 ? and a typical breaking weight of at least 175 g/bead. The macroporous copolymers can be made using an interpenetrating polymer network (IPN) techniques. These macroporous copolymers may also form macroporous resins. The present invention also provides methods of using the macroporous copolymers and resins.
    Type: Grant
    Filed: March 26, 2008
    Date of Patent: July 30, 2013
    Assignee: The Purolite Company
    Inventors: James A. Dale, Vladimir Sochilin, Luc Froment
  • CONTROLLED CATALYSIS
    Publication number: 20090112016
    Abstract: The present invention provides methods of using a novel sulfonated resin catalyst, showing improved performance. The catalyst has reduced or partial functionalization, throughout the sulfonated region of the polymer, leading to reduced by-product formation and other desirable features. This catalyst has particular usefulness in reactions or processes sensitive to high acidity, e.g., esterification-transesterification.
    Type: Application
    Filed: October 24, 2008
    Publication date: April 30, 2009
    Applicant: THE PUROLITE COMPANY
    Inventors: James A. Dale, Luc Froment, Satish Bapat
  • MACROPOROUS COPOLYMERS WITH LARGE PORES
    Publication number: 20080237133
    Abstract: The present invention provides a macroporous copolymer having large pores, typically in the range of 5,000-200,000 ? and a typical breaking weight of at least 175 g/bead. The macroporous copolymers can be made using an interpenetrating polymer network (IPN) techniques. These macroporous copolymers may also form macroporous resins. The present invention also provides methods of using the macroporous copolymers and resins.
    Type: Application
    Filed: March 26, 2008
    Publication date: October 2, 2008
    Applicant: THE PUROLITE COMPANY
    Inventors: James A. Dale, Vladimir Sochilin, Luc Froment