Water-in-oil emulsion explosive composition
AssigneeNippon Oil and Fats Co., Ltd.
InventorsFumio Takeuchi, Masao Takahashi
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Abstract
A water-in-oil emulsion explosive composition comprising an aqueous solution of ammonium nitrate alone or in admixture with the other inorganic oxidizer salt, fuel oil and/or wax, an emulsifier of dipentaerythritol fatty acid ester, polyoxyalkylenedipentaerythritol fatty acid ester, sugar fatty acid ester, polyoxyalkylenesugar fatty acid ester or sorbitol fatty acid ester, and hollow microspheres or microbubbles, has excellent storage stability in the detonation sensitivity in a small diameter cartridge and at low temperature.
Claims8
A water-in-oil emulsion explosive composition, comprising a disperse phase formed of an aqueous oxidizer solution consisting of (a) ammonium nitrate or a mixture of ammonium nitrate and sodium nitrate and (b) water;
- a continuous phase formed of a combustible material consisting of (c) fuel oil and/or wax;
- (d) at least one emulsifier selected from the group consisting of dipentaerythritol fatty acid ester, polyoxyalkylenedipentaerythritol fatty acid ester, sugar fatty acid ester and polyoxyalkylenesugar fatty acid ester;
- and (e) hollow microspheres or microbubbles.
Dependencies are inferred from the claim text.