Patent US4414450A successfully refreshed from Google Patents.
Patent US3790415A successfully refreshed from Google Patents.
US3790415A
Expired / Lapsed
US
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Chemical foaming and sensitizing of water-bearing explosives with hydrogen peroxide
Assignee: ETI EXPLOSIVES TECHNOLOGIES INTE
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Filing: 1970-08-18
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Granted: 1974-02-05
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Expires: 1990-08-18
Abstract
Abstract Making foamed semisolid colloidal dispersions of water-bearing blasting agents containing an inorganic oxidizing salt, e.g., ammonium nitrate, fuel, water and adding thereto the gasgenerating material hydrogen peroxide that foams and sensitizes the blasting agent.
Inventors
- 👤 E Tomic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:10
CPC Classifications
C; C06; C06B; C06B47/00; C06B47/14
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
21 words
The process of claim 1 wherein the amount of hydrogen peroxide added is about from 0.05 to 5 percent by weight.
Claim 2
Dependent Claim
21 words
The process of claim 1 wherein the amount of hydrogen peroxide added is about from 0.2 to 2 percent by weight.
Claim 3
Dependent Claim
10 words
The process of claim 2 wherein the thickener is polyacrylamide.
Claim 4
Dependent Claim
12 words
The process of claim 2 wherein inorganic oxidizing salt is ammonium nitrate.
Claim 5
Dependent Claim
25 words
The process of claim 2 wherein the mix is at a temperature of about from 130* to 150*F when the gas-generating material is added thereto.
Claim 6
Dependent Claim
14 words
The process of claim 2 wherein a nitrogen-base salt is added to the mix.
Claim 7
Dependent Claim
12 words
The process of claim 7 wherein the nitrogen-base salt is monomethylammonium nitrate.
References Cited (Backward Citations)
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US3447978A
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US3582411A
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US3574011A
Cited
US3660182A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-04 | 1977-08-06 | 1978-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-04 | 1981-08-06 | 1982-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-04 | 1985-08-06 | 1986-02-05 | $7700.00 | Window Closed / Lapsed |