Patents by Inventor Gianluigi Semeghini

Gianluigi Semeghini 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).

  • Biodegradable polyamide, films and products obtained from said polyamide and process for its preparation
    Patent number: 5140095
    Abstract: This invention relates to a biodegradable polyamide. In particular, this invention relates to a polyamide containing keto carbonyl groups set out in monomeric units along the main chain of the polymer and having structure (I), wherein n and m are equal or different whole numbers ranging from 8 to 10, preferably 8. Said polyamides are high light-sensitive to the solar U.V. radiation, so that the exposure of the products obtained by means of such polyamides to the U.V. solar radiation causes the product to be transformed into a fragile or friable material, that is biodegradable.
    Type: Grant
    Filed: January 31, 1991
    Date of Patent: August 18, 1992
    Assignee: SNIA Tecnopolimeri S.p.A.
    Inventors: Cesare Guaita, Gianluigi Semeghini