Fibers with chemical markers used for coding

US11231408B2 · kind B2 · utility

Assignee

• Eastman Chemical Company · US

Inventors

• Scott Gregory Gaynor · Bristol, US
• Andrew Ervin McLeod · Jonesborough, US
• Michael John Rodig · Johnson City, US
• Jeremy Kenneth Steach · Kingsport, US
• Humberto Collazo · Kingsport, US
• Steven Anthony Wilson · Kingsport, US
• Lydia Juanita Salyer · Kingsport, US
• Brian Douglas Seiler · Kingsport, US
• Jonathan Horton · Big Stone Gap, US

Key dates

• Filing date: Nov 8, 2017
• Grant date: Jan 25, 2022
• Expiry date: Mar 17, 2038

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2223/056
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Disclosed are fibers which contain identification fibers. The identification fibers can comprise one or more chemical markers, or taggants, which may vary among the fibers or be incorporated throughout all of the fibers. The disclosure also relates to the method for making and characterizing the fibers. Characterization of the fibers can include identifying chemical markers and correlating the chemical markers and a taggant chemical marker amounts of at least one of the chemical markers to manufacturer-specific taggants to determine supply chain information. The supply chain information can be used to track the fibers from manufacturing through intermediaries, conversion to final product, and/or the consumer.