Patents by Inventor Augusto Nanni

Augusto Nanni 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).

  • Method of preparing additives and additives prepared according to said method
    Patent number: 4025690
    Abstract: Dusty additives intended to be used as stabilizer, lubricants, etc. in a polymer or copolymer of vinylchloride are firstly mixed with said polymer or copolymer of vinylchloride, or of acrylonitrile, or of butadiene or of styrene in granular form, e.g. in the form in which they are rendered by a suspension polymerization process, at a temperature of 167.degree. to 230.degree. F., and then cooled to obtain that these additives come into the granules of polymer or copolymer, retaining the same granulometry of this polymer or copolymer granules, with said additive constituting up to 5/6 of the resulting mixture.
    Type: Grant
    Filed: April 19, 1974
    Date of Patent: May 24, 1977
    Assignee: Reagens S.p.A. Industria Chimica
    Inventor: Augusto Nanni