Patents by Inventor Christophe Bochu

Christophe Bochu 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).

  • Polymer compositions based on polythiourethanes for the manufacture of organic glasses
    Patent number: 5310847
    Abstract: The present patent application relates to a polyurethane composition for organic glasses characterized in that it comprises: a first constituent formed by a polyisocyanate at least di-functional, and a second constituent formed by an acyclic saturated monomer bearing at least three reactive functions with respect to isocyanates to form carbamate links, among which reactive functions at least 40% in number are --SH mercapto groups, the proportion of the reactive functions being at least 45% by weight with respect to the molecular weight of the monomer.
    Type: Grant
    Filed: June 9, 1992
    Date of Patent: May 10, 1994
    Assignee: Essilor International (Compagnie Generale d'Optique)
    Inventors: Leanirith Yean, Christophe Bochu