US 12,391,895 B2
Supramolecular surfactants with detergent-dispersant and corrosion inhibitor properties
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); and Luis Silvestre Zamudio Rivera, Mexico City (MX)
Assigned to Instituto Mexicano del Petróleo, Mexico City (MX)
Filed by Instituto Mexicano del Petróleo, Mexico City (MX)
Filed on Jun. 2, 2023, as Appl. No. 18/205,261.
Claims priority of application No. MX/a/2022/06983 (MX), filed on Jun. 8, 2022.
Prior Publication US 2023/0399576 A1, Dec. 14, 2023
Int. Cl. C10L 10/04 (2006.01); C09K 15/20 (2006.01); C09K 15/30 (2006.01)
CPC C10L 10/04 (2013.01) [C09K 15/20 (2013.01); C09K 15/30 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A supramolecular surfactant with detergent-dispersant and corrosion inhibition properties characterized by the non-covalent condensate formula A:B of components A and B wherein:
Component A is a compound of structural formula (1):

OG Complex Work Unit Chemistry
wherein
R1 is an alkenyl or polyalkenyl group of average molecular weight in the interval between 400 and 5,000 Da;
m is an integer number between 1 and 5;
n is an integer number between 0 and 1;
R2, R3, R4, and R5 are any of the following independent substituents: —H, —CH2(CH2)uV, —C6H3WX, or —C10H4YZ, wherein
U is an integer number between 0 and 8;
V is any of the substituents —H, —NH2, —OH, y-COOH; and
W, X, Y, and Z are independent substituents selected of the following groups: linear or branched alkyl chain containing from 1 to 6 carbon atoms, —OH, —NH2, aromatic, methoxy, ethylene oxide, propylene oxide, —COOH, or SO3;
Component B is a mixture of compounds of structural formula (2a) and (2b):

OG Complex Work Unit Chemistry
wherein:
R6 is a linear or branched alkyl or alkenyl chain that contains from 1 to 30 carbon atoms, or a cycloalkyl or aryl group that can contain from 5 to 12 carbon atoms;
R7 is the substituent —H; and
R1 is the substituent —H or —CH3;
and, the compounds of structural formula (2a) and (2b) are in equilibrium with compounds of structural formulas (3a) and (3b), respectively, as shown below:

OG Complex Work Unit Chemistry
wherein components A and B are in a molar ratio from 0.1:10 to 10:0.1, and
wherein the surfactant has a supramolecular structure of any one of formulas (4a), (4b), (5a), (5b), (6a), and (6b):

OG Complex Work Unit Chemistry

OG Complex Work Unit Chemistry