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. 05, 2009
Filed:
May. 27, 2005
David J. Irvin, Ridgecrest, CA (US);
Mark H. Mason, Inyokern, CA (US);
David J. Irvin, Ridgecrest, CA (US);
Mark H. Mason, Inyokern, CA (US);
Other;
Abstract
A process for making energetic cast cured binders by making di-tetrazoles to produce di-functional tetrazole diols for producing tetrazole base polymers. Embodiments of the present invention relates 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 a di-tetrazole, purifying the di-tetrazole by recrystallization in a second solvent; and reacting an effective amount of the purified di-tetrazole with a third solvent, a soluble reversible or non-reversible base, and 2-chloro-ethanol, cooling to room temperature producing a di-functional tetrazole diol.