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Raul Hernandez Altamirano, Violeta Yasmin Mena Cervantes, Luis Silvestre Zamudio Rivera, Hiram Isaac Beltran Conde, Simon Lopez Ramirez: Gemini surfactants, process of manufacture and use as multifunctional corrosion inhibitors. Instituto Mexicano del Petroleo, Roylance Abrams Berdo & Goodman L, August 27, 2013: US08518868 (2 worldwide citation)

Gemini surfactants having the structural formula: where: R1 is a radical represented by —H or —CH3, R2 is an alkyl or alkenyl chain, or cycloalkyl or aryl; R3 is a radical represented by —H, —CH3, —CH═CH—CH3, or —COOX; R4 is a radical represented by —H, —CH3, or —CH2—COOX; R5 is a radical represente ...


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Raul Hernandez Altamirano, Violeta Yasmin Mena Cervantes, Luis Silvestre Zamudio Rivera, Hiram Isaac Beltran Conde, Simon Lopez Ramirez: Gemini surfactants, process of manufacture and use as multifunctional corrosion inhibitors. Instituto Mexicano del Petroleo, Roylance Abrams Berdo & Goodman L, May 5, 2015: US09023785

Gemini surfactants of bis-N-alkyl polyether, bis-N-alkenyl polyether, bis-N-cycloalkyl polyether, bis-N-aryl polyether bis-beta or alpha-amino acids or their salts, are produced for use as multifunctional corrosion inhibitors, which protect and prevent corrosion of ferrous metals exposed to acidic, ...


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Raúl HERNÁNDEZ ALTAMIRANO, Violeta Yasmín MENA CERVANTES, Luis Silvestre ZAMUDIO RIVERA, Hiram Isaac BELTRÁN CONDE, Simón LÓPEZ RAMÍREZ: Gemini surfactants, process of manufacture and use as multifunctional corrosion inhibitors. Instituto Mexicano Del Petroleo, June 16, 2011: US20110138683-A1

The disclosure relates to new surfactants of bis-N-alkyl polyether, bis-N-alkenyl polyether, bis-N-cycloalkyl polyether, bis-N-aryl polyether bis-beta or alpha-imino acids or their salts, process for obtaining and using mainly as multifunctional corrosion inhibitors, which protect and prevent corros ...


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Gemini surfactants, process of manufacture and use as multifunctional corrosion inhibitors. INSTITUTO MEXICANO DEL PETROLEO, December 26, 2013: US20130340326-A1

Gemini surfactants of bis-N-alkyl polyether, bis-N-alkenyl polyether, bis-N-cycloalkyl polyether, bis-N-aryl polyether bis-beta or alpha-amino acids or their salts, are produced for use as multifunctional corrosion inhibitors, which protect and prevent corrosion of ferrous metals exposed to acidic, ...


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HYDROXYSULTAINE- AND SULFOBETAINE-BASED GEMINAL ZWITTERIONIC LIQUIDS, METHOD FOR OBTAINING SAME, AND USE THEREOF AS WETTABILITY MODIFIERS HAVING CORROSION INHIBITING PROPERTIES. November 9, 2017: US20170320817-A1

The present invention is related to obtaining and using sulfobetaine and hidroxisultaine-based geminal zwitterionic liquids as wettability modifiers for rocks such as limestone, dolomite, sandstone, quartz or heterogeneous lithologies, under the presence of brines having high content of divalent ion ...