EP0019458A2
Expired / Lapsed
EP
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Blasting composition
Assignee: Ireco Inc
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Filing: 1980-05-14
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Granted: —
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Expires: 2000-05-14
Abstract
Abstract A cap sensitive water-in-oil emulsion blasting composition comprises a water-immiscible liquid organic fuel as a continuous phase, an emulsified aqueous, inorganic oxidizer salt solution as a discontinuous phase and an emulsifier. Perlite having an average particle size ranging from about 100 microns to about 150 microns is included as a density reducing agent in an amount sufficient to reduce the density of the composition to within the range of from about 0.9 to about 1.4 g/cc and to render the composition cap-sensitive.
Inventors
- 👤 Walter B. Sudweeks
- 👤 Larry D. Lawrence
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 17:22
CPC Classifications
C; C06; C06B; C06B23/00; C06B47/00; C06B47/14; C06B47/145
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
77 words
A cap-sensitive water-in-oil emulsion blasting composition comprising a water-immiscible/liquid organic fuel as a continuous phase, an emulsified aqueous, inorganic oxidizer salt solution as a discontinuous phase, an emulsifier, and perlite having an average particle size ranging from about 100 microns to about 150 microns as a density reducing agent in an amount sufficient to reduce the density of the composition to within the range of from about 0.9 to about'l.4 g/cc and to render the composition cap-sensitive.
Claim 2
Dependent Claim
77 words
A cap-sensitive water-in-oil emulsion blasting composition comprising a water-immiscible/liquid organic fuel as a continuous phase, an emulsified aqueous, inorganic oxidizer salt solution as a discontinuous phase, an emulsifier, and perlite having an average particle size ranging from about 100 microns to about 150 microns as a density reducing agent in an amount sufficient to reduce the density of the composition to within the range of from about 0.9 to about'l.4 g/cc and to render the composition cap-sensitive.
Claim 3
Dependent Claim
29 words
A blasting composition according to Claim 1, wherein the perlite is present in an amount of from about 1.0% to about 8% by weight based on the total composition.
Claim 4
Dependent Claim
22 words
A blasting composition according to Claim 1 or 2, wherein about 90% of the perlite particles are smaller than about 300 microns.
Claim 5
Dependent Claim
26 words
A blasting composition according to Claim 1 or 2, wherein the perlite has an average particle size ranging from about 100 microns to about 200 microns.
Claim 6
Dependent Claim
19 words
A blasting composition according to Claim 4, wherein about 90% of the particles are smaller than about 200 microns.
Claim 7
Dependent Claim
30 words
A blasting composition according to any preceding Claim, wherein the perlite is present in an amount of from about 2% to about 4% by weight based on the total composition.
Claim 8
Dependent Claim
29 words
A blasting composition according to any preceding Claim, wherein the liquid organic fuel is selected from the group consisting of mineral oil, waxes, benzene, toluene, xylene, and petroleum distillates.
Claim 9
Dependent Claim
17 words
A blasting composition according to Claim 7, wherein the liquid organic fuel is gasoline, kerosene, diesel fuel.
Claim 10
Dependent Claim
39 words
A blasting composition according to any preceding Claim, comprising an additional density reducing agent in the form of small, dispersed glass or plastic spheres or microballoons, a chemical foaming or gassing agent, or any two or more such agents.
Claim 11
Dependent Claim
101 words
A cap-sensitive water-in-oil emulsion blasting composition comprising a water-immiscible liquid organic fuel as a continuous phase in an amount of from about 1% to about 10% by weight based on the total composition; an emulsified aqueous inorganic oxidizer salt solution comprising water in an amount from about 5% to about 20% and inorganic oxidizer salt in an amount from about 60% to about 94%; an emulsifier in an amount from about 0.2% to about 5.0%, and perlite having an average particle size ranging from about 100 microns to about 120 microns in an amount of from about 1% to about 8%.
Claim 12
Dependent Claim
101 words
A cap-sensitive water-in-oil emulsion blasting composition comprising a water-immiscible liquid organic fuel as a continuous phase in an amount of from about 1% to about 10% by weight based on the total composition; an emulsified aqueous inorganic oxidizer salt solution comprising water in an amount from about 5% to about 20% and inorganic oxidizer salt in an amount from about 60% to about 94%; an emulsifier in an amount from about 0.2% to about 5.0%, and perlite having an average particle size ranging from about 100 microns to about 120 microns in an amount of from about 1% to about 8%.
Claim 13
Dependent Claim
26 words
A blasting composition according to Claim 10, wherein the oxidizer salt solution contains additionally from about 1% to about 10% of a water-immiscible organic liquid fuel.
Claim 14
Dependent Claim
22 words
A blasting composition according to Claim 10 or 11, wherein about 90% of the perlite particles are smaller than about 200 microns.
Claim 15
Dependent Claim
25 words
A blasting composition according to Claim 10, 11 or 12, wherein the perlite is present in an amount of from about 2% to about 4%.
References Cited (Backward Citations)
No citation records indexed.
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