Patents by Inventor Marie-Laure Perard

Marie-Laure Perard 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 the preparation of aqueous suspensions of anionic colloidal silica having a neutral PH and applications thereof
    Patent number: 8308985
    Abstract: The instant invention relates to a process for the preparation of an aqueous suspension of anionic colloidal silica having a neutral pH which is stable over time and comprises individualized particles of colloidal silica which are not bound to one another by siloxane bonds. The instant suspensions show high storage stability and are particularly useful for the clarification of beer, for the preparation of cosmetic formulations, for the production of ink for printers, for paints and for anticorrosive treatments.
    Type: Grant
    Filed: March 6, 2012
    Date of Patent: November 13, 2012
    Assignee: AZ Electronic Materials USA Corp.
    Inventors: Eric Jacquinot, Marie-Laure Perard, Uwe Falk, Torsten Henning
  • PROCESS FOR THE PREPARATION OF AQUEOUS SUSPENSIONS OF ANIONIC COLLOIDAL SILICA HAVING A NEUTRAL PH AND APPLICATIONS THEREOF
    Publication number: 20120187342
    Abstract: The instant invention relates to a process for the preparation of an aqueous suspension of anionic colloidal silica having a neutral pH which is stable over time and comprises individualized particles of colloidal silica which are not bound to one another by siloxane bonds. The instant suspensions show high storage stability and are particularly useful for the clarification of beer, for the preparation of cosmetic formulations, for the production of ink for printers, for paints and for anticorrosive treatments.
    Type: Application
    Filed: March 6, 2012
    Publication date: July 26, 2012
    Applicant: AZ ELECTRONIC MATERIALS USA CORP.
    Inventors: Eric JACQUINOT, Marie-Laure PERARD, Uwe FALK, Torsten HENNING
  • Process for the preparation of aqueous suspensions of anionic colloidal silica having a neutral pH and applications thereof
    Patent number: 8153107
    Abstract: The instant invention relates to a process for the preparation of an aqueous suspension of anionic colloidal silica having a neutral pH which is stable over time and comprises individualized particles of colloidal silica which are not bound to one another by siloxane bonds. The instant suspensions show high storage stability and are particularly useful for the clarification of beer, for the preparation of cosmetic formulations, for the production of ink for printers, for paints and for anticorrosive treatments.
    Type: Grant
    Filed: January 26, 2011
    Date of Patent: April 10, 2012
    Assignee: AZ Electronic Materials USA Corp.
    Inventors: Eric Jacquinot, Marie-Laure Perard, Uwe Falk, Torsten Henning
  • PROCESS FOR THE PREPARATION OF AQUEOUS SUSPENSIONS OF ANIONIC COLLOIDAL SILICA HAVING A NEUTRAL PH AND APPLICATIONS THEREOF
    Publication number: 20110117035
    Abstract: The instant invention relates to a process for the preparation of an aqueous suspension of anionic colloidal silica having a neutral pH which is stable over time and comprises individualized particles of colloidal silica which are not bound to one another by siloxane bonds. The instant suspensions show high storage stability and are particularly useful for the clarification of beer, for the preparation of cosmetic formulations, for the production of ink for printers, for paints and for anticorrosive treatments.
    Type: Application
    Filed: January 26, 2011
    Publication date: May 19, 2011
    Inventors: Eric Jacquinot, Marie-Laure Perard, Uwe Falk, Torsten Henning
  • Process for the preparation of aqueous suspensions of anionic colloidal silica having a neutral pH and applications thereof
    Patent number: 7651719
    Abstract: The instant invention relates to a process for the preparation of an aqueous suspension of anionic colloidal silica having a neutral pH which is stable over time and comprises individualized particles of colloidal silica which are not bound to one another by siloxane bonds. The instant suspensions show high storage stability and are particularly useful for the clarification of beer, for the preparation of cosmetic formulations, for the production of ink for printers, for paints and for anticorrosive treatments.
    Type: Grant
    Filed: October 16, 2007
    Date of Patent: January 26, 2010
    Assignee: AZ Electronic Materials USA Corp.
    Inventors: Eric Jacquinot, Marie-Laure Perard, Uwe Falk, Torsten Henning
  • Process for the preparation of aqueous suspensions of anionic colloidal silica having a neutral pH and applications thereof
    Patent number: 7629391
    Abstract: The instant invention relates to a process for the preparation of an aqueous suspension of anionic colloidal silica having a neutral pH which is stable over time and comprises individualized particles of colloidal silica which are not bound to one another by siloxane bonds. The instant suspensions show high storage stability and are particularly useful for the clarification of beer, for the preparation of cosmetic formulations, for the production of ink for printers, for paints and for anticorrosive treatments.
    Type: Grant
    Filed: January 8, 2002
    Date of Patent: December 8, 2009
    Assignee: AZ Electronic Materials USA Corp.
    Inventors: Eric Jacquinot, Marie-Laure Perard, Uwe Falk, Torsten Henning
  • PROCESS FOR THE PREPARATION OF AQUEOUS SUSPENSIONS OF ANIONIC COLLOIDAL SILICA HAVING A NEUTRAL PH AND APPLICATIONS THEREOF
    Publication number: 20080159972
    Abstract: The instant invention relates to a process for the preparation of an aqueous suspension of anionic colloidal silica having a neutral pH which is stable over time and comprises individualized particles of colloidal silica which are not bound to one another by siloxane bonds. The instant suspensions show high storage stability and are particularly useful for the clarification of beer, for the preparation of cosmetic formulations, for the production of ink for printers, for paints and for anticorrosive treatments.
    Type: Application
    Filed: October 16, 2007
    Publication date: July 3, 2008
    Inventors: Eric Jacquinot, Marie-Laure Perard, Uwe Falk, Torsten Henning
  • PROCESS FOR THE PREPARATION OF AQUEOUS SUSPENSIONS OF ANIONIC COLLOIDAL SILICA HAVING A NEUTRAL PH AND APPLICATIONS THEREOF
    Publication number: 20080160154
    Abstract: The instant invention relates to a process for the preparation of an aqueous suspension of anionic colloidal silica having a neutral pH which is stable over time and comprises individualized particles of colloidal silica which are not bound to one another by siloxane bonds. The instant suspensions show high storage stability and are particularly useful for the clarification of beer, for the preparation of cosmetic formulations, for the production of ink for printers, for paints and for anticorrosive treatments.
    Type: Application
    Filed: October 16, 2007
    Publication date: July 3, 2008
    Inventors: Eric Jacquinot, Marie-Laure Perard, Uwe Falk, Torsten Henning
  • Use of colloidal anionic silica sols as clarifying agents
    Publication number: 20050276891
    Abstract: The invention relates to the use of colloidal, anionic silica sols of a pH of 1 to 5.5, a particle diameter of 4 to 150 nm and a surface area of 20 to 700 m2/g for clarifying and stabilizing liquid foods.
    Type: Application
    Filed: June 13, 2003
    Publication date: December 15, 2005
    Inventors: Uwe Falk, Eric Jacquinot, Marie-Laure Perard
  • Process for the preparation of aqueous suspensions of anionic colloidal silica having a neutral ph and applications thereof
    Publication number: 20040052901
    Abstract: The instant invention relates to a process for the preparation of an aqueous suspension of anionic colloidal silica having a neutral pH which is stable over time and comprises individualized particles of colloidal silica which are not bound to one another by siloxane bonds. The instant suspensions show high storage stability and are particularly useful for the clarification of beer, for the preparation of cosmetic formulations, for the production of ink for printers, for paints and for anticorrosive treatments.
    Type: Application
    Filed: June 25, 2003
    Publication date: March 18, 2004
    Inventors: Eric Jacquinot, Marie-Laure Perard, Uwe Falk, Torsten Henning