Patents by Inventor Angelo L. Presti

Angelo L. Presti 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 shortstopping emulsion polymerizations which does not generate nitrosamines
    Patent number: 5504168
    Abstract: Method for the shortstopping of polymerizations of conjugated dienes possibly mixed with vinyl-substituted aromatic products in a radicalic emulsion polymerization process using a redox initiator, in particular radicalic emulsion polymerizations of butadiene possibly mixed with styrene or acrylonitrile, a method which enables the production of polymers without nitrosamines (NA) and/or their precursors.
    Type: Grant
    Filed: November 10, 1994
    Date of Patent: April 2, 1996
    Assignee: Enichem Elastomeri S.r.l.
    Inventors: Piero Maestri, Angelo L. Presti