Patents by Inventor Andrea Lukas VECCHIONE

Andrea Lukas VECCHIONE 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).

  • Polymerization catalyst for polythiourethanes, polymerizable liquid composition and process for the production of organic polythiourethane glass with a high refractive index
    Patent number: 9568644
    Abstract: Polymerizable liquid compositions containing three components (A), (B) and (C) are provided, wherein component (A) contains at least one cycloaliphatic diisocyanate monomer wherein the weight percentage of free isocyanate groups in component (A) ranges from about 20% to about 50% by weight with respect to the total weight of component (A); component (B) contains at least one polythiol having a molecular weight ranging from 50 to 1,200 g/moles and a functionality ranging from 2 to 5, the components (A) and (B) being present in a weight ratio varying from 0.5:1 to 2:1; and component (C) being a defined polymerization catalyst. A process for the production of organic glass using the polymerizable liquid composition is further provided.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: February 14, 2017
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Fiorenzo Renzi, Roberto Forestieri, Andrea Lukas Vecchione, Willem Bos
  • POLYMERIZATION CATALYST FOR POLYTHIOURETHANES, POLYMERIZABLE LIQUID COMPOSITION AND PROCESS FOR THE PRODUCTION OF ORGANIC POLYTHIOURETHANE GLASS WITH A HIGH REFRACTIVE INDEX
    Publication number: 20140323678
    Abstract: Polymerizable liquid compositions containing three components (A), (B) and (C) are provided, wherein component (A) contains at least one cycloaliphatic diisocyanate monomer wherein the weight percentage of free isocyanate groups in component (A) ranges from about 20% to about 50% by weight with respect to the total weight of component (A); component (B) contains at least one polythiol having a molecular weight ranging from 50 to 1,200 g/moles and a functionality ranging from 2 to 5, the components (A) and (B) being present in a weight ratio varying from 0.5:1 to 2:1; and component (C) being a defined polymerization catalyst. A process for the production of organic glass using the polymerizable liquid composition is further provided.
    Type: Application
    Filed: July 11, 2014
    Publication date: October 30, 2014
    Inventors: Fiorenzo RENZI, Roberto FORESTIERI, Andrea Lukas VECCHIONE, Willem BOS