Patents by Inventor Sandro Campestrini

Sandro Campestrini 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).

  • ANHYDROUS COMPOSITIONS COMPRISING A PERACID
    Publication number: 20010001786
    Abstract: The present invention relates to liquid anhydrous compositions comprising a mono- or di-peracid having from 5 to 12 carbon atoms or a mixture thereof, an anhydrous peracid compatible organic solvent and a peracid compatible conventional detergent ingredient. These compositions are stable upon prolonged periods of time as well as in use conditions. These compositions also deliver improved bleaching performance in various washing conditions.
    Type: Application
    Filed: September 29, 1998
    Publication date: May 24, 2001
    Applicant: Stefano Scialla
    Inventors: STEFANO SCIALLA, RAFAELLE SCOCCIANTI, FULVIA DIFURIA, SANDRO CAMPESTRINI, GIULIA OTTAVIA BIANCHETTI
  • Stable strongly acidic aqueous compositions containing persulfate salts
    Patent number: 6028045
    Abstract: Stable, aqueous compositions having a pH of from 0 to 0.9 are disclosed, which comprise a persulfate salt, or mixtures of such salts, and a free radical scavenger, or mixtures thereof. Preferred compositions are emulsions of nonionic surfactants comprising the persulfate salt and a free radical scavenger.
    Type: Grant
    Filed: September 16, 1996
    Date of Patent: February 22, 2000
    Assignee: The Procter & Gamble Company
    Inventors: Giulia Ottavia Bianchetti, Stefano Scialla, Sandro Campestrini, Fulvio DiFuria
  • Process for manufacturing aqueous compositions comprising peracids
    Patent number: 5879584
    Abstract: A process for manufacturing an aqueous composition of a peracid by reacting an acid anhydride with concentrated hydrogen peroxide. Preferably the aqueous peracid composition is further converted into an emulsion having improved stability wherein said emulsion contains a surfactant having an HLB above 11 and a surfactant having an HLB below 11.
    Type: Grant
    Filed: June 13, 1997
    Date of Patent: March 9, 1999
    Assignee: The Procter & Gamble Company
    Inventors: Giulia Ottavia Bianchetti, Stefano Scialla, Sandro Campestrini, Fulvio Di Furia
  • Process for the production of aldehyde or ketone compounds and aldehydes and ketones obtained by means of this process
    Patent number: 4859799
    Abstract: Process for the production of aldehydes or ketones by oxidative cleavage of olefinic double bonds by means of a coordination complex of a ligand and a peroxo derivative of a metal of group 6b.Aldehydes and ketones obtained by said process are used among others as intermediates in the synthesis of organic products.
    Type: Grant
    Filed: May 20, 1988
    Date of Patent: August 22, 1989
    Assignee: Interox (Societe Anonyme)
    Inventors: Sandro Campestrini, Fulvio Di Furia, Giorgio Modena, Lucia Pasquato