Patents by Inventor Francis Larche

Francis Larche 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).

  • Suspensions Comprising Calcium Carbonate Particles Exhibiting a Controlled State of Aggregation
    Publication number: 20070287758
    Abstract: Aqueous suspension of particles of precipitated calcium carbonate meeting the following requirements: dP?D50?q.dP where dP is the mean diameter of the particles (nm), measured by the Lea-Nurse method, D50 is the diameter of the particles (nm) for which 50% of the distribution (measured by the sedimentation technique) is smaller and 50% of the distribution is greater, q is a number between 1.0 and 20.0, and comprising an additive chosen from nonionic compounds comprising more than one carbon atom, the content of which, with respect to the calcium carbonate, is greater than 0.4% by weight.
    Type: Application
    Filed: October 24, 2005
    Publication date: December 13, 2007
    Applicant: SOLVAY (SOCIETE ANONYME)
    Inventors: Myriam Ricaud, Karine Cavalier, Roberto Rosa, Francis Larche