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Patent US4398976A successfully refreshed from Google Patents.
US4398976A
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Water-in-oil emulsion explosive composition
Assignee: NOF Corp
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Filing: 1981-12-23
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Granted: 1983-08-16
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Expires: 2001-12-23
Abstract
Abstract A water-in-oil emulsion explosive composition having excellent storage stability, low-temperature detonability and explosion reactivity is disclosed, which comprises (a) a disperse phase formed of an inorganic nitrate consisting mainly of ammonium nitrate, (b) a continuous phase formed of an oil, (c) an emulsifier, (d) hollow microspheres and/or a chemical foaming agent, and (e) an inorganic chlorate.
Inventors
- 👤 Katsuhide Hattori
- 👤 Yoshiaki Fukatsu
- 👤 Akio Torii
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:35
CPC Classifications
C; C06; C06B; C06B47/00; C06B47/14; C06B47/145
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
52 words
A water-in-oil emulsion explosive composition comprising (a) a disperse phase formed of an aqueous solution of inorganic nitrate consisting mainly of ammonium nitrate, (b) a continuous phase formed of an oil, (c) an emulsifier, (d) hollow microspheres and/or a chemical foaming agent, and (e) 2-15% by weight of an inorganic chlorate sensitizer.
Claim 2
Dependent Claim
52 words
A water-in-oil emulsion explosive composition comprising (a) a disperse phase formed of an aqueous solution of inorganic nitrate consisting mainly of ammonium nitrate, (b) a continuous phase formed of an oil, (c) an emulsifier, (d) hollow microspheres and/or a chemical foaming agent, and (e) 2-15% by weight of an inorganic chlorate sensitizer.
Claim 3
Dependent Claim
30 words
A composition according to claim 1 wherein said inorganic chlorate sensitizer is selected from the group consisting of alkali metal salts and alkaline earth metal salts of inorganic chloric acid.
Claim 4
Dependent Claim
54 words
A water-in-oil emulsion explosive composition consisting essentially of (a) a disperse phase formed of an aqueous solution of inorganic nitrate consisting mainly of ammonium nitrate, (b) a continuous phase formed of an oil, (c) an emulsifier, (d) hollow microspheres and/or a chemical foaming agent, and (e) 2-15% by weight of an inorganic chlorate sensitizer.
Claim 5
Dependent Claim
54 words
A water-in-oil emulsion explosive composition consisting essentially of (a) a disperse phase formed of an aqueous solution of inorganic nitrate consisting mainly of ammonium nitrate, (b) a continuous phase formed of an oil, (c) an emulsifier, (d) hollow microspheres and/or a chemical foaming agent, and (e) 2-15% by weight of an inorganic chlorate sensitizer.
Claim 6
Dependent Claim
55 words
A water-in-oil emulsion explosive composition comprising (a) a disperse phase formed of an aqueous solution of inorganic nitrate consisting mainly of ammonium nitrate, (b) a continuous phase formed of an oil, (c) an emulsifier, (d) hollow microspheres and/or a chemical foaming agent, and (e) 2-15% by weight of an inorganic chlorate as the only sensitizer.
Claim 7
Dependent Claim
55 words
A water-in-oil emulsion explosive composition comprising (a) a disperse phase formed of an aqueous solution of inorganic nitrate consisting mainly of ammonium nitrate, (b) a continuous phase formed of an oil, (c) an emulsifier, (d) hollow microspheres and/or a chemical foaming agent, and (e) 2-15% by weight of an inorganic chlorate as the only sensitizer.
References Cited (Backward Citations)
US4326900A
Cited
US4322258A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-08-15 | 1987-02-14 | 1987-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-15 | 1991-02-14 | 1991-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-15 | 1995-02-14 | 1995-08-16 | $7700.00 | Window Closed / Lapsed |