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. 28, 2026
Filed:
Jan. 24, 2019
Aerojet Rocketdyne, Inc., Sacramento, CA (US);
Robert K. Masse, Redmond, WA (US);
AEROJET ROCKETDYNE, INC., Melbourne, FL (US);
Abstract
The hydrazine-containing composition is a liquid mixture that includes from 5 mol % to 95 mol % of unprotonated hydrazine selected from hydrazine, monomethylhydrazine, dimethylhydrazine, ethylhydrazine, and combinations thereof, and from 5 mol % to 90 mol % of at least one oxygen-containing solute or solvent selected from acetals, acetyls, alcoxyamines having two or more carbon atoms, aldehydes, amides, amides and particularly carboxamides, aminoalcohols, carbazides, semicarbazides, carbon-containing nitrate salts comprising cations with logarithmic dissociation constants less than 9.2, hydroxyalkyl nitro compounds, hydroxyalkylhydrazines, carbonates, carboxylic acids and anhydrides of carboxylic acids, esters, ethers, ketals, ketones, mono- and poly-alcohols in 31% or greater mass fraction, nitrate esters, nitrosamines, sugars, and combinations thereof. The unprotonated hydrazine has a first vapor pressure and the oxygen-containing solvent has a second vapor pressure that is less than the first vapor pressure.