US 11,912,635 B2
Explosive compositions for use in reactive ground and related methods
Jade Pettersen, Singleton (AU); Emma McPhail, Singleton (AU); and Jeff Gore, Singleton (AU)
Assigned to Dyno Nobel Asia Pacific Pty Limited, (AU)
Filed by Dyno Nobel Asia Pacific Pty Limited, Southbank (AU)
Filed on Dec. 11, 2020, as Appl. No. 17/118,986.
Application 17/118,986 is a division of application No. 16/242,836, filed on Jan. 8, 2019, granted, now 10,865,162.
Claims priority of application No. 2018900058 (AU), filed on Jan. 9, 2018.
Prior Publication US 2021/0094889 A1, Apr. 1, 2021
Int. Cl. F42D 5/00 (2006.01); C06B 31/28 (2006.01); F42D 1/10 (2006.01); C06B 21/00 (2006.01); C06B 23/00 (2006.01); C06B 47/14 (2006.01)
CPC C06B 31/285 (2013.01) [C06B 21/0008 (2013.01); C06B 23/006 (2013.01); C06B 47/145 (2013.01); F42D 1/10 (2013.01); F42D 5/00 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An explosive composition comprising an emulsion comprising:
a continuous organic phase comprising fuel oil;
a discontinuous oxidizer phase comprising:
urea, wherein the urea is about 0.5% to about 35% of the discontinuous oxidizer phase by weight;
a non-Group I or Group II nitrate; and
one or more Group I or Group II nitrates, wherein the Group I or Group II nitrates are about 3% to about 35% of the discontinuous oxidizer phase by weight,
wherein a ratio of the non-Group I or Group II nitrate to the one or more Group I or Group II nitrates is 6:1 to 9:1 by weight, and
wherein the emulsion has a sleep time of at least 3 hours in contact with high temperature ground, reactive ground, or both.