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:
May. 11, 2021
Filed:
Sep. 27, 2018
United States of America As Represented BY the Secretary of the Army, Alexandria, VA (US);
Luke A Gurtowski, Vicksburg, MS (US);
Manoj K Shukla, Clinton, MS (US);
David P Martin, Clinton, MS (US);
Christopher S Griggs, Vicksburg, MS (US);
UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE ARMY, Alexandria, VA (US);
Abstract
The invention is a renewable adsorbent material, amine-functionalized chitin (AFC) that can remove the following munitions compounds from solution while providing a concentration-dependent color change: NTO, DNAN, and TNT. Adsorption of the munitions constituents can be adjusted by pH; neutral pH provides maximum adsorption. NTO can desorb from the AFC at pH levels of 2 and 12; DNAN and TNT remain attached to AFC once adsorbed.