Patents by Inventor Fabrice Domingues Dos Santos

Fabrice Domingues Dos Santos 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).

  • Latex based on hydrophobic polymers core/shell structures film forming at low temperature without coalescent agent
    Patent number: 6531185
    Abstract: The invention concerns hydrophobic films for coating surfaces obtained by drying at low temperature, not requiring coalescent agents, latex containing a core-structured polymer with soft characteristic having a glass transition temperature lower than 20° C. enclosed in a shell with hard characteristic having a glass transition temperature higher than 50° C.
    Type: Grant
    Filed: May 5, 2000
    Date of Patent: March 11, 2003
    Assignee: Elf Atochem, S.A.
    Inventors: Xavier Drujon, Pascale Fabre, Ludwik Leibler, Gilles Meunier, Fabrice Domingues Dos Santos
  • Low-temperature film-forming latex based on hydrophobic polymers having a core/shell structure without coalescents
    Publication number: 20020132055
    Abstract: A latex which forms a film by evaporation at a temperature of less than 40° C. is based on hydrophobic polymer particles having a core/shell structure. The particles consist of 70 to 90% by weight of at least one polymer with a soft character having a glass transition temperature of less than 20° C. forming the core, and 10 to 30% by weight of at least one polymer with a hard character having a glass transition temperature of greater than 50° C. forming the shell. When applied to any surface and after drying at low temperature, the latex, without the use of any coalescents or volatile organic compounds, provides a continuous film which is homogeneous, has no surface tack and has good mechanical integrity.
    Type: Application
    Filed: April 30, 2002
    Publication date: September 19, 2002
    Inventors: Xavier Drujon, Pascale Fabre, Ludwik Leibler, Gilles Meunier, Fabrice Domingues Dos Santos