Patents by Inventor Antonio Gutterrez

Antonio Gutterrez 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).

  • Polymer substituted amido-amine Mannich Base lubricant dispersant additives
    Patent number: 5124056
    Abstract: The present invention is directed to oil-soluble lubricating oil additives comprising Mannich Base condensates of a polymer substituted hydroxy aromatic compound with formaldehyde and an amido-amine or thioamido-amine, wherein the polymer substituent is derived from a polymer of 300 to 10,000 number average molecular weight, and wherein the amido-amine and thioamido-amine comprises the reaction product of a polyamine and an alpha, beta-ethylenically unsaturated compound. The Mannich Base condensates of this invention are useful as dispersants in oleaginous compositions, including fuel and lubricating oil compositions, and in concentrates containing these additives.
    Type: Grant
    Filed: May 30, 1989
    Date of Patent: June 23, 1992
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Antonio Gutterrez, Robert D. Lundberg