Patents by Inventor Silvio Barettini

Silvio Barettini 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).

  • Process for rigid polyurethane foams
    Patent number: 6339110
    Abstract: Process for the preparation of a rigid polyurethane or urethane-modified polyisocyanurate foam in the presence of a hydrocarbon blowing agent using a tolylenediamine-initiated polyether polyol in an amount of between 10 and 40% by weight based on total isocyanate-reactive compounds.
    Type: Grant
    Filed: June 10, 1997
    Date of Patent: January 15, 2002
    Assignee: Imperial Chemical Industries PLC
    Inventors: Andrea Cappella, Werner Hoffmann, Silvio Barettini, Maria Vittoria Franco, Walter Bazzo