A multispectral smoke obscurant composition effective in reducing transmittance in the visual, infrared, and ultraviolet regions of the electromagnetic spectrum, comprising at least one metal organic framework (MOF), at least one fuel, at least one oxidizer, and optionally one or more additives selected from the group consisting of binders, coolants, and accelerants. The MOF or MOF composite is present from about 10 to 90 weight percent of the smoke obscurant composition, while the fuel and the oxidizer in combination comprise about at least 10 weight percent of the smoke obscurant composition.

A tackifier is used resin in an energic material formulation comprising active materials and a polymeric binder to reduce or eliminate the use of a plasticiser in the formulation wherein the tackifier resin is compatible with the polymeric material.

A tackifier is used resin in an energic material formulation comprising active materials and a polymeric binder to reduce or eliminate the use of a plasticiser in the formulation wherein the tackifier resin is compatible with the polymeric material.

A solid propellant rocket motor may comprise a core-burning propellant grain extending along a longitudinal axis of the solid propellant rocket motor between an exhaust end of the solid propellant rocket motor and a forward end of the solid propellant rocket motor, a first burn inhibitor layer surrounding the core-burning propellant grain, an end-burning propellant grain surrounding the first burn inhibitor layer, a second burn inhibitor layer surrounding the end-burning propellant grain, and an aperture at least partially defined by the first burn inhibitor layer. The end-burning propellant grain is ignited by the core-burning propellant grain via the aperture.

A solid propellant rocket motor may comprise a core-burning propellant grain extending along a longitudinal axis of the solid propellant rocket motor between an exhaust end of the solid propellant rocket motor and a forward end of the solid propellant rocket motor, a first burn inhibitor layer surrounding the core-burning propellant grain, an end-burning propellant grain surrounding the first burn inhibitor layer, a second burn inhibitor layer surrounding the end-burning propellant grain, and an aperture at least partially defined by the first burn inhibitor layer. The end-burning propellant grain is ignited by the core-burning propellant grain via the aperture.

A gas propelled munitions anti-fouling system has a case having an open forward mouth end, a rear end, and an interior, the rear end defining a pocket that receives a primer and a passage communicating between the pocket and the interior of the case, a quantity of propellant received within the interior of the case, a quantity of anti-fouling composition received within the interior of the case, and a bullet having a rear portion inserted into the open forward mouth end of the case. The anti-fouling composition may have at least one salt and at least one acid. The acid may be anhydrous. The salt may be sodium chloride or sodium nitrate. The acid may be anhydrous citric acid. The anti-fouling composition may have at least one abrasive. The abrasive may be stannic acid. The anti-fouling composition may be 50% salt by weight and 50% acid by weight.

A gas propelled munitions anti-fouling system has a case having an open forward mouth end, a rear end, and an interior, the rear end defining a pocket that receives a primer and a passage communicating between the pocket and the interior of the case, a quantity of propellant received within the interior of the case, a quantity of anti-fouling composition received within the interior of the case, and a bullet having a rear portion inserted into the open forward mouth end of the case. The anti-fouling composition may have at least one salt and at least one acid. The acid may be anhydrous. The salt may be sodium chloride or sodium nitrate. The acid may be anhydrous citric acid. The anti-fouling composition may have at least one abrasive. The abrasive may be stannic acid. The anti-fouling composition may be 50% salt by weight and 50% acid by weight.

Disclosed herein are energetic compositions and methods of making thereof. A composition includes perchlorate or nitrate containing oxidizer particles, a polymeric binder, and a borylated ferrocene derivative bonding agent bonded to a surface of at least a portion the perchlorate or nitrate containing oxidizer particles to form a Lewis complex.

Disclosed herein are energetic compositions and methods of making thereof. A composition includes perchlorate or nitrate containing oxidizer particles, a polymeric binder, and a borylated ferrocene derivative bonding agent bonded to a surface of at least a portion the perchlorate or nitrate containing oxidizer particles to form a Lewis complex.

A precursor formulation comprising, before curing, a hydroxyl-terminated polybutadiene (HTPB) prepolymer or a hydroxyl-terminated polyether (HTPE) prepolymer, an oxidizer, a dimer fatty diol, and an isocyanate curative. A solid propellant comprising a reaction product of the HTPB prepolymer or HTPE prepolymer, the dimer fatty diol, and the isocyanate curative is also disclosed, as is a rocket motor comprising a case and a solid propellant in the case, the solid propellant comprising the reaction product and an oxidizer. A method of reducing a burn rate of a solid propellant is also disclosed.