Crosslinked double base propellant binders

C - Chemistry – Metallurgy – 08 – B

Patent

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Details

400/1324, 52/51

C08B 3/12 (2006.01) C06B 25/26 (2006.01) C06B 45/10 (2006.01) C08G 18/40 (2006.01) C08G 18/64 (2006.01)

Patent

CA 1102482

Abstract of the Disclosure A crosslinked binder for crosslinked double base pro- pellant is provided. The binder is prepared from nitrocell- ulose having a nitrogen content of 11 to 13.4% N and an intrinsic viscosity of 0.55 dl./gram to 2.0 dl./gram, a polymeric diol having a hydroxyl functionality of 1.9 to 2.1 and a polyfunctional isocyanate having an NCO functionality of at least three. The propellant prepared from the binder exhibits improved mechanical properties without detriment to ballistic performance.

327914

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