Fuel markers and methods of producing and using same

US9631152B2 · kind B2 · utility

Assignee

• Authentix, Inc. · US

Inventors

• Jeffrey L. Conroy · Allen, US
• Philip B. Forshee · McKinney, US
• John-Christopher Boyer · Montréal, CA

Key dates

• Filing date: Jul 22, 2015
• Grant date: Apr 25, 2017
• Expiry date: Jul 22, 2035

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2030/025
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method of forming a composition comprising contacting a fuel and at least one compound of Formula I:wherein X is carbon, oxygen, or sulfur; R1 and R2 each independently are hydrogen, a C1 to C20 alkyl, or a C6 to C10 aryl; R3 and R3′ each independently are hydrogen or a C1 to C4 alkyl; R4 and R4′ each independently are hydrogen, a C1 to C4 alkyl, a C4 to C10 cycloalkyl, or a C6 to C10 aryl; R5 and R5′ each independently are a C4 to C10 alkyl; R6 and R6′ each independently are hydrogen or a C1 to C6 alkyl; and R7 and R7′ each independently are hydrogen or C1 to C4 alkyl; and wherein the compound of Formula I when subjected to GC-MS using electron ionization at greater than 70 eV produces at least one ion having a mass-to-charge ratio of 300 to 600.