A stabilized water-in-oil energetic emulsion composition comprising a) an aqueous oxidizer phase comprising at least one oxygen supplying component; b) an organic phase comprising at least one organic fuel; c) an emulsifying amount of at least one emulsifying agent suitable for forming a water-in-oi
A stabilized water-in-oil energetic emulsion composition comprising a) an aqueous oxidizer phase comprising at least one oxygen supplying component; b) an organic phase comprising at least one organic fuel; c) an emulsifying amount of at least one emulsifying agent suitable for forming a water-in-oil emulsion; and d) an emulsion stabilizer comprising a hydrocarbon polymer, said hydrocarbon polymer having {overscore (M)}n ranging from about 2,000 to about 6,000, provided that said emulsion composition is essentially free of any polyvalent inorganic agent that is capable of cross-linking with the emulsifying agent or the emulsion stabilizer.
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1. A stabilized water-in-oil energetic emulsion composition comprisinga) an aqueous oxidizer phase comprising at least one oxygen supplying component; b) an organic phase comprising at least one organic fuel: c) an emulsifying amount of at least one emulsifying agent suitable for forming a water-in-
1. A stabilized water-in-oil energetic emulsion composition comprisinga) an aqueous oxidizer phase comprising at least one oxygen supplying component; b) an organic phase comprising at least one organic fuel: c) an emulsifying amount of at least one emulsifying agent suitable for forming a water-in-oil emulsion; and d) an emulsion stabilizer comprising an acylated hydrocarbon polymer, said acylated hydrocarbon polymer having {overscore (M)}n ranging from about 2,000 to about 6,000 and acyl groups selected from carboxylic acids, their anhydrides, and alkyl esters of said carboxylic acids wherein said alkyl groups have 1 to 7 carbon atoms, or combinations thereof provided that the organic phase of said emulsion composition is essentially free of any polyvalent inorganic agent that is capable of cross-linking with the emulsifying agent or the emulsion stabilizer. 2. The composition of claim 1 wherein the emulsifying agent comprises a composition having HLB ranging from about 1 to about 7.3. The composition of claim 1 wherein said oxygen supplying component comprises ammonium nitrate.4. The composition of claim 1 wherein the emulsifying agent comprises at least one aliphatic hydrocarbyl group substituted carboxylic emulsifier composition.5. The composition of claim 4 wherein the aliphatic hydrocarbyl group of the emulsifying agent is a polyalkenyl group derived from at least one member of the group consisting of polybutenes, polypropylene, ethylene-propylene copolymer ethylene-propylene-polyene copolymer, and partially hydrogenated styrene-diene copolymer.6. The composition of claim 5 wherein the polyalkenyl group is derived from polyisobutylene.7. The composition of claim 4 wherein the carboxylic emulsifier composition comprises a succinic emulsifier composition.8. The composition of claim 7 wherein the succinic emulsifier comprises at least one of succinic ester-acid salt groups, succinic amide-acid groups, succinic diester groups, succinic diamide groups, succinimide groups and mixtures thereof.9. The composition of claim 8 wherein at least 60% of said groups have aminoalkyl and hydroxyalkyl substituents.10. The composition of claim 4 wherein the aliphatic hydrocarbyl group of the emulsifying agent has {overscore (M)}n ranging from about 600 to about 5,000.11. The composition of claim 7 wherein the succinic emulsifier amide-acid groups derived from secondary alkanol amines.12. The composition of claim 7 wherein the succinic emulsifier comprises succinic diester groups derived from tertiary alkanol amines.13. The composition of claim 7 wherein the succinic emulsifier comprises succinic diamide groups derived from at least one of primary and secondary amines.14. The composition of claim 7 wherein the succinic emulsifier comprises succinimide groups derived from at least one of primary alkanol amine and primary alkylene polyamines having at least one primary amino group.15. The composition of claim 7 wherein the succinic emulsifier comprises ester groups derived from polyhydroxy compounds.16. The composition of claim 1 wherein the acylated hydrocarbon polymer of the stabilizer comprises at least one polyolefin.17. The composition of claim 16 wherein the polyolefin is an ethylene-olefin copolymer wherein the olefin contains from 3 to about 28 carbon atoms.18. The composition of claim 17 wherein the olefin is an alpha olefin.19. The composition of claim 1 wherein said emulsion composition comprises from about 0.1 to about 3 weight percent of an acylated hydrocarbon polymer.20. The composition of claim 19 wherein the acylated hydrocarbon polymer is prepared by grafting acyl group containing monomers onto a substantially hydrocarbon polymer.21. The composition of claim 19 wherein the acylated hydrocarbon polymer is prepared by copolymerizing acyl group containing monomers with hydrocarbon monomers.22. The composition of claim 19 wherein the acylated hydrocarbon polymer is an ethylene-propylene copolymer having grafted thereon an average of from about 1 to about 6 maleic anhydride monomers per polymer chain.23. The composition of claim 7 wherein the succinic emulsifier composition is made by reaction of 1 mole of at least one polyalkenyl group substituted succinic acylating agent with from about 0.9 to about 1.1 mole of at least one secondary or tertiary alkanolamine.24. The composition of claim 1 wherein the continuous organic phase is present in amounts ranging from about 2% to about 10% by weight, the discontinuous aqueous phase is present in amounts ranging from about 90% to about 98% by weight, both based on the total weight of the emulsion composition, said oxygen-supplying component is present in amounts in the range of about 70% to about 95% by weight based on the weight of said aqueous phase, the emulsifying agent is present in amounts ranging from about 4% to about 40% by weight based on the total weight of the oil phase and the emulsion stabilizer is present in amounts ranging from about 0.1 to about 3% by weight based on the total weight of the emulsion composition.25. The composition of claim 1 further comprising a sensitizing amount of at least one closed-cell, void-containing material.26. The composition of claim 1 further comprising a sensitizing amount of gas bubbles.27. A method for preparing an emulsion explosive composition comprising1) preparing an aqueous component comprising water and at least one oxygen supplying component; 2) preparing an organic component comprising an organic fuel, an emulsifying amount of at least one emulsifying agent suitable for forming a water-in-oil emulsion and an emulsion stabilizer comprising an acylated hydrocarbon polymer, said acylated hydrocarbon polymer having {overscore (M)}n ranging from about 2,000 to about 6,000 and acyl groups selected from carboxylic acids, their anhydrides, and alkyl esters of said carboxylic acids wherein said alkyl groups have 1 to 7 carbon atoms, or combinations thereof; and 3) preparing an emulsion by mixing the aqueous component and the organic component. 28. A method for preparing an emulsion explosive composition comprising1) preparing an aqueous component comprising water and at least one oxygen supplying component; 2) preparing an organic component comprising an organic fuel and an emulsifying amount of at least one emulsifying agent suitable for forming a water-in-oil emulsion; 3) preparing an emulsion by mixing the aqueous component and the organic component, then 4) incorporating into the emulsion an emulsion stabilizer comprising an acylated hydrocarbon polymer, said acylated hydrocarbon polymer having {overscore (M)}n ranging from about 2,000 to about 6,000 and acyl groups selected from carboxylic acids, their anhydrides, and alkyl esters of said carboxylic acids wherein said alkyl groups have 1 to 7 carbon atoms, or combinations thereof. 29. The method of claim 27 wherein said emulsion composition comprises from about 0.1 to about 3 weight percent of an acylated hydrocarbon polymer.
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이 특허에 인용된 특허 (3)
McKenzie Lee F. (Riverton UT) Lawrence Lawrence D. (Sandy UT), Emulsion explosive containing organic microspheres.
Ghosh Pushpito K. (New Bombay INX) Bhattacharyya Dhirendra N. (Bombay INX) Iyer Rama S. (Bombay INX) Chikale Sudhakar V. (New Bombay INX) Chattopadhyay Arun K. (Bihar INX) Paul Sasanka S. (Bihar INX), Water-in-oil emulsion explosive compositions containing organophilic smectite clay.
Borissov, Anatoli; Borissov, Alexander; Jirnov, Alexei; Jirnov, legal representative, Michael, System, apparatus and method for combustion of metals and other fuels.
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