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Unsupported propellant charge element and compact charge produced therefrom

  • US 4,724,017 A
  • Filed: 03/27/1987
  • Issued: 02/09/1988
  • Est. Priority Date: 03/27/1986
  • Status: Expired due to Fees
First Claim
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1. Unsupported, compressed propellant charge elements of nitrocellulose powder grains, coated with a resin layer, characterized in that:

  • (a) the nitrocellulose powder grains are coated with an acrylate resin layer constituting 0.5-6% by weight of the grains,(b) compressing takes place with a pressure force of between 500 and 1,500 kg/cm2 [49,000 N/m2 to 150,000 N/m2 ] and without concomitant use of an additional adhesive, and(c) the thus-obtained element is fashioned as a cylinder having a continuous axial bore, the height of which is between 70 and 200% of the diameter of the cylinder and the axial bore of which has a diameter of 15-30% of the diameter of the cylinder.

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