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US 8,813,650 B2Granted
Ammunition casing
AssigneeSolvay Advanced Polymers, L.L.C.
InventorsNikica Maljkovic, Todd S. Rushing
Life of this patent
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Abstract
An ammunition article is provided which comprises a casing and a cap wherein the casing is formed from a polymeric material that has a room temperature notched Izod impact value greater than about 10 ft lbs/in and then has a ratio of notched Izod impact value at room temperature to notch Izod impact value at about −40° C. of less than about 4.
Claims18
An ammunition article comprising:
- an ammunition casing, the casing defining a generally cylindrical hollow body having first and second ends and consisting of at least a caselet and a cap;
- a propellant disposed and confined within said hollow body;
- and
- a primer disposed at the first end of said casing in combustible communication with said propellant;
- wherein at least a portion of the caselet comprises a polymeric material that has a room temperature (about 23° C.) notched Izod impact strength, measured in accordance with ASTM D256-00, greater than about 10 ft lbs/in and that has a ratio of notched Izod impact strength at room temperature to notched Izod impact strength at about −40° C. of less than about 4.
2 more elements
Dependencies are inferred from the claim text.