US4077820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gelled-water bearing explosive composition
Assignee: Orica Ltd
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Filing: 1976-03-02
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Granted: 1978-03-07
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Expires: 1996-03-02
Abstract
Abstract A gelled water-bearing explosive comprising a water-soluble oxygen releasing salt such as ammonium nitrate, a fuel, water and a gelling agent. The gelling agent is an organic metallic complex of a metal with a copolymer of a water-soluble monomer and a monomer which forms, with a metal, a chelate ring.
Inventors
- 👤 Frederick Bolza
- 👤 Thomas Jellinek
- 👤 Keith Gordon Neill
- 👤 Howard William Tankey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:30
CPC Classifications
C; C08; C08F; C08F246/00; A; A01; A01N; A01N25/00; A01N25/08; A01N25/10; C06; C06B; C06B47/00; C06B47/14
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
91 words
A gelled water-bearing explosive composition comprising at least one water soluble inorganic oxygen releasing salt, at least one fuel, from 5 to 35% by weight of water; and 0.1 to 5% by weight of a gelling agent comprising an organic metallic complex of a metal selected from the group consisting of zinc, cerium, aluminum, uranium, titanium, zirconium, lead, tin, vanadium, chromium, manganese and iron, and a copolymer of a water-soluble monomer and a monomer containing a bidentate group which contains two donor groups which forms with a metal, a chelate ring.
Claim 2
Dependent Claim
91 words
A gelled water-bearing explosive composition comprising at least one water soluble inorganic oxygen releasing salt, at least one fuel, from 5 to 35% by weight of water; and 0.1 to 5% by weight of a gelling agent comprising an organic metallic complex of a metal selected from the group consisting of zinc, cerium, aluminum, uranium, titanium, zirconium, lead, tin, vanadium, chromium, manganese and iron, and a copolymer of a water-soluble monomer and a monomer containing a bidentate group which contains two donor groups which forms with a metal, a chelate ring.
Claim 3
Dependent Claim
24 words
A gelled explosive composition according to claim 2 wherein the copolymer comprises up to 20 molar percent of the monomer containing a bidentate group.
Claim 4
Dependent Claim
21 words
A gelled explosive composition according to claim 1 wherein the monomer containing a bidentate group comprises methacryloyl acetone or 2-acetoacetoxyethyl methacrylate.
Claim 5
Dependent Claim
27 words
A gelled explosive composition according to any one of claim 1 wherein the water soluble monomer comprises acrylamide, vinyl pyrrolidone, vinyl alcohol, methacrylic acid or dimethylaminoethyl methacrylate.
Claim 6
Dependent Claim
37 words
A gelled explosive composition according to claim 1 wherein the copolymer is derived from a further monomer comprising an alkyl methacrylate or acrylonitrile in addition to the water soluble monomer and the monomer containing the bidentate groups.
Claim 7
Dependent Claim
13 words
A gelled explosive composition according to claim 1 wherein the metal is chromium.
References Cited (Backward Citations)
US3940297A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-03-06 | 1981-09-05 | 1982-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-03-06 | 1985-09-05 | 1986-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-03-06 | 1989-09-05 | 1990-03-07 | $7700.00 | Window Closed / Lapsed |