Patents by Inventor Emilio Ardrizzi

Emilio Ardrizzi 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).

  • Rubber processing oil and rubber products containing it
    Patent number: 5504135
    Abstract: An oil composition which has a kinematic viscosity at 100.degree. C. of from 32 to 50 cSt and which contains less than 3 wt. percent polynuclear aromatic compounds is employed as a process oil for rubber compounds, especially aromatic rubbers. The process oil is compatible with aromatic rubbers but contains less toxic polynuclear aromatic compounds than conventional aromatic rubber process oils. Rubber products of acceptable quality are produced by the use of the said oil composition.
    Type: Grant
    Filed: September 27, 1993
    Date of Patent: April 2, 1996
    Assignee: Exxon Research and Engineering Company
    Inventors: Emilio Ardrizzi, Rolando Vivirito