Patents by Inventor Renato Spiti

Renato Spiti 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).

  • Polishes for metal surfaces containing cationic emulsifiers, and cationic emulsifiers contained therein
    Patent number: 5424438
    Abstract: Polishes for metal surfaces, based on dispersions of waxes, fluorinated polymers and perfluoropolyoxyalkylene oils acquire high gloss characteristics combined with improved water-repellency and resistance to soiling of 0.1-5% by weight of at least a cationic emulsifier comprised in the general formula(I) R-L-Q.sup.+ X.sup.-where:R=a chain of perfluoropolyoxyalkylene units;L=a divalent organic group;Q=a polar group;X=a halogen, or a group of formulaCH.sub.3 -Phenylene-SO.sub.3.sup.-R"SO.sub.3.sup.-R"=F-(CF.sub.2).sub.m -;t=1 or 2;m=1-4.The polished containing the emulsifiers of formula (I) as well as the compounds comprised in said formula are claimed as new products.
    Type: Grant
    Filed: January 6, 1994
    Date of Patent: June 13, 1995
    Assignee: Ausimont S.p.A.
    Inventors: Alba Chittofrati, Viviana Boselli, Giovanni Gavazzi, Ezio Strepparola, Renato Spiti, Silvia Tresoldi
  • Polishes for metal surfaces containing cationic emulsifiers, and cationic emulsifiers contained therein
    Patent number: 5294248
    Abstract: Polishes for metal surfaces, based on dispersions of waxes, fluorinated polymers and perfluoropolyoxyalkylene oils acquire high gloss characteristics combined with improved water-repellency and resistance to soiling of 0.1-5% by weight of at least a cationic emulsifier comprised in the general formulaR--L--Q.sup.+ X.sup.-.sub.t (I)where:R=a chain of perfluoropolyoxyalkylene units;L=a divalent organic group;Q=a polar group;X=a halogen, or a group of formulaCH.sub.3 -Phenylene-SO.sub.3.sup.-R"SO.sub.3 --R"=F-(CF.sub.2).sub.m -;t=1 or 2;m=1-4.The polished containing the emulsifiers of formula (I) as well as the compounds comprised in said formula are claimed as new products.
    Type: Grant
    Filed: February 19, 1993
    Date of Patent: March 15, 1994
    Assignee: Ausimont S.p.A.
    Inventors: Alba Chittofrati, Viviana Boselli, Giovanni Gavazzi, Ezio Strepparola, Renato Spiti, Silvia Tresoldi