Patents by Inventor Anny Mazzacavallo

Anny Mazzacavallo 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).

  • Paper/paper laminate-opacifying TiO.sub.2 particulates
    Patent number: 5705033
    Abstract: Unique titanium dioxide (TiO.sub.2) particulates have an especially high physicochemical affinity for cellulosic fibers and, thus, are well suited as opacifying pigments for paper and paper laminates, and include a zeta potential-adjusting amount of at least one cationic polymer, e.g., a polymer of a quaternary ammonium, sulfonium or phosphonium salt or a copolymer of acrylamide with a cationic comonomer, fixed to the face surfaces thereof.
    Type: Grant
    Filed: December 30, 1992
    Date of Patent: January 6, 1998
    Assignee: Rhone-Poulenc Chimie
    Inventors: Bernard Gerard, Remy Lorang, Anny Mazzacavallo