Methods of preparing propellant compositions for power loads and firearms that include providing pre-shaped particle sized starting material, shaped consistent with a desired final propellant product shape, and thereafter nitrating and stabilizing the pre-shaped starting material using boiling stabilization processes. The resulting nitrated propellants of the methods reliably exhibit complete stabilization, high nitrogen substitution, high shelf life and acceptable ballistic performance.

Methods of preparing propellant compositions for power loads and firearms that include providing pre-shaped particle sized starting material, shaped consistent with a desired final propellant product shape, and thereafter nitrating and stabilizing the pre-shaped starting material using boiling stabilization processes. The resulting nitrated propellants of the methods reliably exhibit complete stabilization, high nitrogen substitution, high shelf life and acceptable ballistic performance.

Methods of preparing propellant compositions for power loads and firearms that include providing pre-shaped particle sized starting material, shaped consistent with a desired final propellant product shape, and thereafter nitrating and stabilizing the pre-shaped starting material using boiling stabilization processes. The resulting nitrated propellants of the methods reliably exhibit complete stabilization, high nitrogen substitution, high shelf life and acceptable ballistic performance.

Methods of preparing propellant compositions for power loads and firearms that include providing pre-shaped particle sized starting material, shaped consistent with a desired final propellant product shape, and thereafter nitrating and stabilizing the pre-shaped starting material using boiling stabilization processes. The resulting nitrated propellants of the methods reliably exhibit complete stabilization, high nitrogen substitution, high shelf life and acceptable ballistic performance.

Described herein are methods for chemical modification of nitrocellulose to generate lyophobic properties which are useful in propellant compositions. Such methods include the steps of: a) dissolving neat nitrocellulose in an organic solvent; b) adding a silyl based isocyanate and a catalyst to the solution; (d) stirring the solution in a moisture free environment; e) hydrolyzing the solution by exposing said solution to moisture; and (e) adding fluorinated oxysilane. The modified nitrocellulose retains its energetic properties while exhibiting high water and organic solvent phobicity, effectively functioning as a barrier to migration or diffusion of liquid components in propellant compositions.

Described herein are methods for chemical modification of nitrocellulose to generate lyophobic properties which are useful in propellant compositions. Such methods include the steps of: a) dissolving neat nitrocellulose in an organic solvent; b) adding a silyl based isocyanate and a catalyst to the solution; (d) stirring the solution in a moisture free environment; e) hydrolyzing the solution by exposing said solution to moisture; and (e) adding fluorinated oxysilane. The modified nitrocellulose retains its energetic properties while exhibiting high water and organic solvent phobicity, effectively functioning as a barrier to migration or diffusion of liquid components in propellant compositions.

The present disclosure relates to a continuous extrusion process for producing a celluloid article including several steps and a celluloid article prepared by the continuous extrusion process.

A combustible propellant charge sleeve for ammunition which can be fired from an armor barrel includes pulp, nitrocellulose, MO.sub.3 particles, wherein M=Mo and/or W, and cationic surfactant, wherein the average particle size d.sub.50 of the MO.sub.3 particles is 0.5-2.0 m, the maximum particle size d.sub.100 of the MO.sub.3 particles is 20 m, and the quotient of the average MO.sub.3 concentration in % by weight in a volume element of about 0.05 to 1.0 cm.sup.3 (C.sub.VE) at any point in the propellant charge sleeve and the total MO.sub.3 concentration in % by weight (C.sub.total) in the propellant charge sleeve is C.sub.VE:C.sub.total =0.80-1.20.

A combustible propellant charge sleeve for ammunition which can be fired from an armor barrel includes pulp, nitrocellulose, MO.sub.3 particles, wherein M=Mo and/or W, and cationic surfactant, wherein the average particle size d.sub.50 of the MO.sub.3 particles is 0.5-2.0 m, the maximum particle size d.sub.100 of the MO.sub.3 particles is 20 m, and the quotient of the average MO.sub.3 concentration in % by weight in a volume element of about 0.05 to 1.0 cm.sup.3 (C.sub.VE) at any point in the propellant charge sleeve and the total MO.sub.3 concentration in % by weight (C.sub.total) in the propellant charge sleeve is C.sub.VE:C.sub.total =0.80-1.20.