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:
Jul. 22, 2008
Filed:
May. 27, 2005
David J. Irvin, Ridgecrest, CA (US);
Mark H. Mason, Inyokern, CA (US);
Stephen Fallis, Ridgecrest, CA (US);
Andrew Chafin, Ridgecrest, CA (US);
Richard Hollins, Ridgecrest, CA (US);
David J. Irvin, Ridgecrest, CA (US);
Mark H. Mason, Inyokern, CA (US);
Stephen Fallis, Ridgecrest, CA (US);
Andrew Chafin, Ridgecrest, CA (US);
Richard Hollins, Ridgecrest, CA (US);
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
A process for making energetic urethane cured binders by making poly-tetrazoles to produce multi-functional tetrazole polyols for producing tetrazole base polymers. Embodiments of the present invention relate generally to a process for preparation of a monomer including reacting an effective amount of nitrile(s) with inorganic azide and a divalent zinc salt in a first solvent, cooling to room temperature producing poly tetrazole purifying the poly tetrazole by recrystallization or precipitation in a second solvent, and reacting an effective amount of the purified poly-tetrazole with a third solvent, a soluble reversible or non-reversible base, and 2-chloro-ethanol, cooling to room temperature producing tetrazole polyol. Embodiments of the present invention further include the monomers produced by the processes described herein.