C - Chemistry – Metallurgy – 06 – B
Patent
C - Chemistry, Metallurgy
06
B
52/16, 52/51
C06B 45/02 (2006.01) C06B 47/14 (2006.01)
Patent
CA 1103033
ABSTRACT The invention relates to water-in-oil emulsion blasting compositions having a discontinuous aqueous phase and a continuous oil or water-immiscible liquid organic phase. The compositions comprise (a) discrete droplets of an aqueous sol- ution of inorganic oxidizer salt(s), (b) a water-immiscible liquid organic fuel forming a continuous phase throughout which the droplets are dispersed, and (c) an emulsifier that forms an emulsion of the oxidizer salt solution droplets throughout the continuous liquid organic phase. Preferably, the composit- ions contain a uniformly dispersed density reducing agent such as small glass or plastic spheres or microballoons, which increase composition sensitivity under relatively high pressures. The emulsifier of the present invention is cationic and has an unsaturated hydrocarbon chain for its lipophilic portion. Synergistic combinations of this emulsifier with particular fuels is another aspect of the present invention.
341871
Jessop Harvey A.
Sudweeks Walter B.
Borden Ladner Gervais Llp
Ireco Chemicals
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