Patents by Inventor Philippe Villaine

Philippe Villaine 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).

  • Pneumatic tire--the carcass of which is formed of a regenerated cellulose fiber
    Patent number: 4926920
    Abstract: A pneumatic tire has a carcass which is formed, at least in part, of a regenerated cellulose fiber. The fiber is formed of at least one filament having a base of cellulose and/or at least one cellulose derivative containing cellulose ester groups, at least a part of these ester groups being formate groups.
    Type: Grant
    Filed: October 22, 1986
    Date of Patent: May 22, 1990
    Assignee: Michelin Recherche et Technique S.A.
    Inventors: Jacques Gouttebessis, Philippe Villaine
  • Anistropic compositions of cellulose esters; processes for obtaining such compositions; fibers of cellulose esters or cellulose
    Patent number: 4839113
    Abstract: Composition (M) having a base of a cellulose ester having formate groups, this composition being an anisotropic solution containing:(a) the cellulose ester;(b) formic acid;(c) at least one phosphoric acid.A process for obtaining this composition by dissolving the cellulose and a process for obtaining articles by transformation of this composition, and, for example, regenerating the cellulose of these articles. A cellulose fiber is provided in which a degree of substitution of the cellulose by formate groups is either at least equal to 2% or is zero or less than 2%.
    Type: Grant
    Filed: December 19, 1985
    Date of Patent: June 13, 1989
    Assignee: Michelin Recherche et Technique S.A.
    Inventors: Philippe Villaine, Claude Janin