The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 19, 2025
Filed:
Jun. 02, 2023
Instituto Mexicano Del Petróleo, Mexico City, MX;
Ricardo Cerón Camacho, Mexico City, MX;
Raúl Oviedo Roa, Mexico City, MX;
Jorge Francisco Ramírez Pérez, Mexico City, MX;
Enrique Soto Castruita, Mexico City, MX;
Rodolfo Cisneros Dévora, Mexico City, MX;
David Aaron Nieto Álvarez, Mexico City, MX;
José Manuel Martínez Magadan, Mexico City, MX;
Ana Graciela Servín Nájera, Mexico City, MX;
Luis Silvestre Zamudio Rivera, Mexico City, MX;
Instituto Mexicano del Petróleo, Mexico City, MX;
Abstract
The present invention relates to supramolecular surfactants (SS) with detergent-dispersant of heavy organic compounds (deposits and/or organic scales) and corrosion inhibition properties, and methods for preparing these surfactants. The invention also relates to the corresponding uses and applications of these surfactants to prevent and control the formation of deposits in internal combustion machines, as well as to prevent and protect pipelines, tanks, motors and complements of ferrous materials against corrosion where there is contact with liquid hydrocarbons such as gasoline, turbosine, and diesel, where gasoline may contain oxygenated compounds such as ethers and/or alcohols. The supramolecular surfactants are obtained from the self-assembly process between oxazolidines derived from polyalkyl/polyalkenyl N-hydroxyalkyl succinimides with alkyl/alkenyl-amine-propanoic acids and alkyl/alkenyl-amine-di-propanoic acids. The concentration of supramolecular surfactants in liquid fuels is quantified through a process based on determining the interfacial tension in a fuel/water/supramolecular surfactant system.