Ammunition and explosive-charge making – Ammunition making – Caps and cartridges
Patent
1989-11-22
1991-06-04
Nelson, Peter A.
Ammunition and explosive-charge making
Ammunition making
Caps and cartridges
86 2011, 149 45, 149 44, 1491082, 149 195, 1491096, 149106, 149116, 149 1992, 264 31, 102336, 102361, F42B 702, F42B 3300, F42B 426, C06B 3100
Patent
active
H00009253
ABSTRACT:
An encapsulated signal illuminant flare composition is comprised of powde magnesium from about 45 to about 60 weight percent, of powdered sodium nitrate from about 32 to about 49 weight percent, and of capsular adhesives containing about 91 weight liquid materials contained within capsules having cell walls of equal parts Arabic gum and gelatin of about 9 weight percent to yield a binder from about 6 to about 12 weight percent. The composition ingredients are blended in a dry mixer to achieve a homogeneously, blended signal illuminant flare composition. The blended signal illuminant flare composition is incrementally fed into a flare press for compacting into cartridges in two increments at about 14,000 psi pressure which ruptures the capsular adhesives by hydraulic forces to achieve polymer mixing and the surrounding of the powder ingredients with the binder ingredients to form a very homogenous signal illuminant flare composition mass. The flare composition mass is cured for about 16 hours at a minimum temperature of about 170.degree. F. The capsular adhesives are blended of about one part of an epoxy adhesive to two parts of a polyester adhesive. The capsular epoxy adhesive is comprised of about 79 weight percent diglycidyl ether of Bisphenol A and of about 12 weight percent of benzoyl peroxide contained in capsules having cell walls comprised of Arabic gum and gelatin of about 9 weight percent. The capsular polyester adhesive is comprised of about 86 weight percent polyester resin, of about 5 weight percent N, N'-dimethyl-o-toluidine contained in capsules having cell walls comprised of Arabic gum and gelatin of about 9 weight percent.
Bush Fred M.
Deaton James T.
Nelson Peter A.
The United States of America as represented by the Secretary of
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