Lead-free ammunition projectile
AssigneeLUMAS Polymers LLC
InventorsZachary Peterson, Thomas Fry
Life of this patent
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Abstract
A bullet (ammunition projectile) comprising a branched condensation polymer and a filler, wherein the filler is present in an amount from about 10% to 65% by volume of the branched condensation polymer and filler is described. The bullet may be made by heating a mixture comprised of a branched condensation polymer and a filler comprised of a first and second filler having differing densities and differing particle size distribution to form a molten mixture and injecting the molten mixture into a mold to form the ammunition projectile allowing for the tailoring of the characteristics of the bullet for differing applications.
Claims20
An ammunition projectile comprising:
- a branched condensation polymer, and
- a filler, wherein the filler is present in an amount from about 10% to 65% by volume of the branched condensation polymer and filler, wherein the branched condensation polymer has a melt flow rate of 10 g/10 min to 100 g/10 min (2.16 kg @ 235° C.).
A method of forming an ammunition projectile comprising:
- (i) heating a mixture comprised of a branched condensation polymer and a filler comprised of a first and second filler having differing densities and differing particle size distribution to form a molten mixture, and
- (ii) injecting the molten mixture into a mold to form the ammunition projectile, wherein the first filler has a density of less than about 10 g/cc and the second filler has a density of greater than about 10 g/cc, the first filler has an average particle size of about 25 μm to about 110 μm, and the second filler has an average particle size of about 5 μm to about 10 μm.
Dependencies are inferred from the claim text.