US3881970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Explosive composition having a liquid hydroxyalkyl nitrate as sensitizer
Assignee: PPG Architectural Coatings Canada Inc
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Filing: 1973-11-28
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Granted: 1975-05-06
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Expires: 1993-11-28
Abstract
Abstract Hydroxyalkyl nitrates, particularly ethylene glycol mononitrate, propylene glycol mononitrate and hydroxychloropropyl nitrate are employed as part or whole replacements for nitroglycerine and/or ethyleneglycol dinitrate in substantially non-aqueous gelatins, semi-gelatins, dynamites and dry explosive compositions.
Inventors
- 👤 Errol Linton Falconer
- 👤 Harold William Holden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:29
CPC Classifications
C; C06; C06B; C06B47/00; C06B47/14; C06B25/00; C06B25/10; C06B25/12
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
26 words
A SUBSTANTIALLY NON-AQUEOUS EXPLOSIVE COMPOSITION HAVING A WATER CONTENT OF LESS THAN 3% BY WEIGHT AND HAVING AS A SENSITIZER AT LEAST ONE LIQUID HYDROXYALKYL NITRATE.
Claim 2
Dependent Claim
26 words
A SUBSTANTIALLY NON-AQUEOUS EXPLOSIVE COMPOSITION HAVING A WATER CONTENT OF LESS THAN 3% BY WEIGHT AND HAVING AS A SENSITIZER AT LEAST ONE LIQUID HYDROXYALKYL NITRATE.
Claim 3
Dependent Claim
28 words
An explosive composition as claimed in claim 1 wherein the liquid hydroxyalkyl nitrate sensitizer is selected from ethylene glycol mononitrate, propylene glycol mononitrate, hydroxychloropropyl nitrate and mixtures thereof.
Claim 4
Dependent Claim
57 words
An explosive composition as claimed in claim 1 having an extrudable gelatinous consistency comprising essentially from 40 to 80% by weight of oxygen-supplying salt, from 1 to 15% by weight of carbonaceous material, at least 5% by weight of liquid hydroxxyalkyl nitrate sensitizer and adjusted to a gelatinous consistency by the further incorporation of gel-producing liquid/thickener combination.
Claim 5
Dependent Claim
57 words
An explosive composition as claimed in claim 1 having a tampable, cohesive consistency comprising essentially from 5 to 40% by weight of liquid hydroxyalkyl nitrate sensitizer, from 40 to 90% by weight of oxygen-supplying salt, from 1 to 15% by weight of carbonaceous material, up to 10% by weight of a gel-extending liquid and a thickening additive.
Claim 6
Dependent Claim
47 words
An explosive composition as claimed in claim 1 having a Dry blasting agent consistency comprising essentially from 65 to 95% by weight of particulate ammonium nitrate, from 0.5 to 15% by weight of carbonaceous material and from 2 to 20% by weight of liquid hydroxyalkyl nitrate sensitizer.
Claim 7
Dependent Claim
16 words
An explosive composition as claimed in claim 1 also containing at least one supplementary sensitizer material.
Claim 8
Dependent Claim
34 words
An explosive composition as claimed in claim 6 wherein the supplementary sensitizer material is selected from particulate metal, ethylene glycol dinitrate, nitroglycerine, pentaerythritol tetranitrte, dinitrotoluene, alkylamine nitrate. alkanolamine nitrate, ammonium perchlorate and mixtures thereof.
References Cited (Backward Citations)
US3653992A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-05 | 1978-11-04 | 1979-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-05 | 1982-11-04 | 1983-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-05 | 1986-11-04 | 1987-05-06 | $7700.00 | Window Closed / Lapsed |