Lead-free precussion primer mixes based on metastable interstiti

Details Lead-free precussion primer mixes based on metastable interstiti Lead-free precussion primer mixes based on metastable interstiti

1997-02-19

1998-02-10

Nelson, Peter A.

Explosive and thermic compositions or charges

Metal or alloy or metalloid, each in particulate form, with...

Plural oxygen yielding compounds

149 37, 1491082, 102204, 102205, C06B 3312, F41F 140

Patent

active

057171599

ABSTRACT:
A lead-free percussion primer composition and a percussion cup containing e composition. The lead-free percussion primer composition is comprised of a mixture of about 45 wt % aluminum powder having an outer coating of aluminum oxide and molybdenum trioxide powder or a mixture of about 50 wt % aluminum powder having an outer coating of aluminum oxide and polytetrafluoroethylene powder. The aluminum powder, molybdenum trioxide powder and polytetrafluoroethylene powder has a particle size of 0.1 .mu.m or less, more preferably a particle size of from about 200-500 angstroms.

REFERENCES:
patent: 3703144 (1972-11-01), Colburn, Jr.
patent: 4041217 (1977-08-01), Collins
patent: 4089715 (1978-05-01), Scherzinger
patent: 4090895 (1978-05-01), Outten
patent: 5462306 (1995-10-01), Barcaskey
patent: 5552001 (1996-09-01), Fearon

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