Patents by Inventor Claude Hosotte-Filbert

Claude Hosotte-Filbert 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).

  • Use of acrylic block copolymers as wetting and/or dispersing agents for solid particles, and resulting dispersions
    Patent number: 5681877
    Abstract: Block copolymers denoted by AB from acrylic or methacrylic acid, the corresponding blocks being denoted by A, and from alkyl acrylate or methacrylate with the alkyl chain being C.sub.1 -C.sub.10, the corresponding blocks being denoted by B. Said copolymer blocks are used as wetting and/or dispersing agents for solid particles in an essentially organic medium consisting of a solvent or a mixture of solvents solubilizing the block B.The invention also concerns solid particle dispersions using the above-defined block copolymers.It also concerns compositions, in particular cosmetic compositions, containing said dispersions.
    Type: Grant
    Filed: March 27, 1996
    Date of Patent: October 28, 1997
    Assignee: LVMH Recherche
    Inventors: Claude Hosotte-Filbert, Carole Tondeur, Henri-Gerard Riess, Alain Meybeck, Jean-Fran.cedilla.ois Tranchant