Patents by Inventor Antonio Guttierrez

Antonio Guttierrez 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).

  • Novel dispersants for oleaginous compositions
    Patent number: 4936867
    Abstract: According to the present invention, novel oil soluble compositions useful as dispersants are provided by reaction of a mono- or polycarboxylic acid acylating reactant with at least one heterocyclic polyol of the formula: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are the same or different and are selected from the group consisting of H, alkyl and --CH(OH)R.sup.5, wherein R.sup.5 is C.sub.1 to C.sub.10 alkyl, and wherein X and Y are the same or different and are H or C.sub.1 to C.sub.10 alkyl, with the proviso that at least one of R.sup.1, R.sub.2, R.sub.3 and R.sup.4 is the --CH(OH)R.sup.5 moiety.
    Type: Grant
    Filed: August 2, 1989
    Date of Patent: June 26, 1990
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Antonio Guttierrez, Jack Ryer
  • Novel dispersants for oleaginous compositions
    Patent number: 4797219
    Abstract: According to the present invention, novel oil soluble compositions useful as dispersants are provided by reaction of a mono- or polycarboxylic acid acylating reactant with at least one heterocyclic polyol of the formula: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are the same or different and are selected from the group consisting of H, alkyl and --CH(OH)R.sup.5, wherein R.sup.5 is C.sub.1 to C.sub.10 alkyl, and wherein X and Y are the same or different and are H or C.sub.1 to C.sub.10 alkyl, with the proviso that at least one of R.sup.1, R.sup.2, R.sup.3 and R.sup.4 is the --CH(OH)R.sup.5 moiety.
    Type: Grant
    Filed: April 24, 1987
    Date of Patent: January 10, 1989
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Antonio Guttierrez, Jack Ryer