Co-oxidizers in solid crosslinked double base propellants (U)
AssigneeHercules Incorporated
InventorMarvin L. Jones
Life of this patent
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Abstract
Use of mixtures of certain solid oxidizers in minimum smoke crosslinked propellants dramatically enhances burn rates.
Claims8
In a minimum smoke, crosslinked, double base propellant consisting essentially of solid oxidizer and binder consisting of elements selected from carbon, hydrogen, nitrogen and oxygen, the improvement wherein said solid oxidizer comprises (a) fine triaminoguanidium nitrate particles and (b) coarse nitramine particles, the ratio between the weight mean diameter of said fine particles to said coarse particle being at least about 1:10 and said coarse particles having a weight mean diameter greater than one hundred microns.
In a minimum smoke, crosslinked, double base propellant consisting essentially of solid oxidizer and binder consisting of elements selected from carbon, hydrogen, nitrogen and oxygen, the improvement wherein said solid oxidizer consists essentially of fine and coarse oxidizer particles wherein the weight mean diameter of said coarse oxidizer particles is greater than 100 microns and the ratio of the weight mean diameter of said fine particles to said coarse particles being between about 1:10 and 1:60, said fine oxidizer particles consisting of triaminoguanidium nitrate and said coarse oxidizer particles selected from trimethylenetrinitramine and cyclotetramethylenetetranitramine.
Dependencies are inferred from the claim text.