Explosive and thermic compositions or charges – Structure or arrangement of component or product
Reexamination Certificate
2005-05-03
2005-05-03
Felton, Aileen B. (Department: 3641)
Explosive and thermic compositions or charges
Structure or arrangement of component or product
C149S046000, C149S109600, C423S396000
Reexamination Certificate
active
06887323
ABSTRACT:
This invention relates to a method of reducing density in an ammonium nitrate product. The method comprises providing a gas generating agent in the form of a water-insoluble solid compound capable of generating gas by chemical reaction and providing an ammonium nitrate product. The water-insoluble solid gas generating agent is introduction into the ammonium nitrate product under conditions causing gas generation by the gas generating agent in the ammonium nitrate product. The ammonium nitrate product is particulated to form a particulated prilled ammonium nitrate product with reduced density. The invention also relates to a particulated ammonium nitrate product produced by this method and to the use of a gas generating agent in the form of a water-insoluble solid compound reduce density in a particulate ammonium nitrate product.
REFERENCES:
patent: 4997494 (1991-03-01), Nguyen
patent: 5540793 (1996-07-01), Bals et al.
patent: 5936194 (1999-08-01), Marlow et al.
patent: 0 514 037 (1992-11-01), None
patent: 0 831 079 (1998-03-01), None
patent: 767025 (1980-09-01), None
Bals Edwin
Breedt Jacobus
Spiteri William Luciano
Stephens Hugh Albert Sandry
Felton Aileen B.
Finnegan Henderson Farabow Garrett & Dunner L.L.P.
Sasol Chemistry Industries Limited
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