Patents by Inventor Yvonnick Chevallier

Yvonnick Chevallier 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).

  • Publication number: 20020168324
    Abstract: The invention relates to precipitated silica microbeads having sensory properties in the mouth, and a specific surface CTAB of at least 100 m2/g, an oil uptake of at least 200 ml/g, a mean particle diameter from 50 &mgr;m to 600 &mgr;m, at the surface from 0.5 to 2 parts by weight, (expressed as zinc metal) of a zinc derivative with a degree of oxidation of 2 per 100 parts by weight of silica, a pH from about 7 to 9, and possibly between 0.2 and 5 parts by weight of a white pigment for 100 parts by weight of silica The invention also relates to a method for producing said microbeads by precipitation, treatment of the silica slurry with a soluble zinc compound, mechanical thinning of the cake resulting from the separation of the treated silica slurry, and drying by atomization. The invention further relates to their use in toothpaste preparations as sensory agents acting in the mouth.
    Type: Application
    Filed: March 18, 2002
    Publication date: November 14, 2002
    Inventors: Frederic Amiche, Adrien Dromard, Yvonnick Chevallier, Pierre-Yves Lahary