Patents by Inventor Stefano G. Savastano

Stefano G. Savastano 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).

  • Water sheeting zwitterionomeric aminofunctional siloxanes
    Patent number: 5008424
    Abstract: A polish formulation containing as components at least one member selected from the group consisting of waxes, solvents, surfactants, thickening agents, abrasives, dyes, odorants, and other ingredients normally used in making polishes, and as an improvement incorporating a composition which is the reaction product of an acid anhydride and an aminofunctional siloxane. The resulting zwitterionic aminofunctional siloxane can, if desired, be further reacted with a strong acid to provide an equilibrium of the zwitterion and a conjugate acid base pair of the zwitterion and the acid. The invention also includes a method of sheeting water on a surface with the polish, a method of making an aminofunctional siloxane zwitterionomer, and an aminofunctional zwitterionomeric siloxane compound which is the reaction product.
    Type: Grant
    Filed: May 4, 1990
    Date of Patent: April 16, 1991
    Assignee: Dow Corning Corporation
    Inventors: Daniel J. Halloran, Kenneth A. Kasprzak, Stefano G. Savastano, Terence J. Swihart
  • Water sheeting zwitterionomeric aminofunctional siloxanes
    Patent number: 4950506
    Abstract: A polish formulation containing as components at least one member selected from the group consisting of waxes, solvents, surfactants, thickening agents, abrasives, dyes, odorants, and other ingredients normally used in making polishes, and as an improvement incorporating a composition which is the reaction product of an acid anhydride and an aminofunction siloxane. The resulting zwitterionic aminofunctional siloxane can, if desired, be further reacted with a strong acid to provide an equilibrium of the zwitterion and a conjugate acid base pair of the zwitterion and the acid. The invention also includes a method of sheeting water on a surface with the polish, a method of making an aminofunctional siloxane zwitterionomer, and an aminofunctional zwitterionomeric siloxane compound which is the reaction product.
    Type: Grant
    Filed: January 4, 1990
    Date of Patent: August 21, 1990
    Assignee: Dow Corning Corporation
    Inventors: Daniel J. Halloran, Kenneth A. Kasprzak, Stefano G. Savastano, Terence J. Swihart
  • Water sheeting zwitterionomeric aminofunctional siloxanes
    Patent number: 4898614
    Abstract: A polish formulation containing as components at least one member selected from the group consisting of waxes, solvents, surfactants, thickening agents, abrasives, dyes, odorants, and other ingredients normally used in making polishes, and as an improvement incorporating a composition which is the reaction product of an acid anhydride and an aminofunctional siloxane. The resulting zwitterionic aminofunctional siloxane can, if desired, be further reacted with a strong acid to provide an equilibrium of the zwitterion and a conjugate acid base pair of the zwitterion and the acid. The invention also includes a method of sheeting water on a surface with the polish, a method of making an aminofunctional siloxane zwitterionomer, and an aminofunctional zwitterionomeric siloxane compound which is the reaction product.
    Type: Grant
    Filed: January 5, 1989
    Date of Patent: February 6, 1990
    Assignee: Dow Corning Corporation
    Inventors: Daniel J. Halloran, Kenneth A. Kasprzak, Stefano G. Savastano, Terence J. Swihart