US4233095A
Expired / Lapsed
US
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Method for producing improved gelatine explosive compositions
Assignee: Indian Explosives Ltd
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Filing: 1978-11-13
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Granted: 1980-11-11
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Expires: 1998-11-13
Abstract
Abstract A process is disclosed for preparing a gelatine explosive composition comprising the steps of adding at least one dispersing agent to a mixture of liquid nitric esters and ortho-nitrotoluene, adding the resulting mixture to blasting soluble nitrocotton to form a gel and subsequently adding oxidizing salts, fuels, and when desired, a water-proofing agent such as tamarind seed flour or guar gum to form a homogeneous mixture.
Inventors
- 👤 Bidhan C. Ghosh
- 👤 Gopal M. Chopra
- 👤 Soumendra N. Sen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:28
CPC Classifications
C; C06; C06B; C06B23/00; C06B23/009; C06B21/00; C06B21/0008; C06B25/00; C06B25/28; C06B25/30
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
94 words
A method of producing a gelatine explosive composition comprising mixtures of liquid nitric esters, blasting soluble nitrocotton, oxidizing salts, fuels and at least one dispersing agent with a marked reduction in the quantities of liquid nitric esters and blasting soluble nitrocotton content, the method comprising the steps of adding at least one of said dispersing agent to said liquid nitric esters, adding the resulting mixtures to said blasting soluble nitrocotton in a conventional mixer for the formation of a gel and subsequently adding said oxidizing salts and said fuels to form a homogenous mixture.
Claim 2
Independent Claim
94 words
A method of producing a gelatine explosive composition comprising mixtures of liquid nitric esters, blasting soluble nitrocotton, oxidizing salts, fuels and at least one dispersing agent with a marked reduction in the quantities of liquid nitric esters and blasting soluble nitrocotton content, the method comprising the steps of adding at least one of said dispersing agent to said liquid nitric esters, adding the resulting mixtures to said blasting soluble nitrocotton in a conventional mixer for the formation of a gel and subsequently adding said oxidizing salts and said fuels to form a homogenous mixture.
Claim 3
Dependent Claim
26 words
A method as claimed in claim 1, wherein a water proofing agent is added to said gel in addition to said oxidizing salts and said fuels.
Claim 4
Dependent Claim
19 words
A method as claimed in claim 2, wherein said water proofing agent is tamarind seed flour or guar gum.
Claim 5
Dependent Claim
23 words
A method as claimed in claim 1, wherein said dispersing agent is added to a mixture of said liquid nitric esters and ortho-nitrotoluene.
Claim 6
Dependent Claim
28 words
A method as claimed in claim 1, wherein the dispersing agent is modified by adjusting the pH and alkanity to make it compatible with the liquid nitric esters.
Claim 7
Dependent Claim
21 words
A method as claimed in claim 1, wherein the dispersing agent is added in an amount of 0.10 to 1.0% w/w.
Claim 8
Dependent Claim
21 words
A method as claimed in claim 6, wherein the dispersing agent is added in an amount of 0.10 to 0.40% w/w.
Claim 9
Dependent Claim
20 words
A method as claimed in claim 3, wherein the amount of tamarind seed flour added is up to 3% w/w.
Claim 10
Dependent Claim
18 words
A method as claimed in claim 1, wherein the dispersing agent used is an amide of fatty acid.
Claim 11
Dependent Claim
21 words
A method as claimed in claim 1, wherein the dispersing agent is a condensation product of formaldehyde and sodium naphathalene sulphonate.
Claim 12
Dependent Claim
20 words
A method as claimed in claim 1, wherein the dispersing agent is a sodium salt of sulphated oleyl/cetyl alcohol mixture.
Claim 13
Dependent Claim
18 words
A method as claimed in claim 1, wherein the dispersing agent is a condensation product of polyethylene glycol.
Claim 14
Dependent Claim
20 words
A method as claimed in claim 1, wherein the dispersing agent is a highly sulphonated methyl ester of fatty alcohol.
Claim 15
Dependent Claim
21 words
A method as claimed in claim 1, wherein the dispersing agent is a mixture of fatty acid amine and sulphated alcohol.
Claim 16
Dependent Claim
18 words
A method as claimed in claim 1, wherein the dispersing agent is an alkyl aryl sulphonated sodium salt.
Claim 17
Dependent Claim
16 words
A method as claimed in claim 1, wherein the dispersing agent is soya oil fatty amine.
Claim 18
Dependent Claim
16 words
A method as claimed in claim 1, wherein the dispersing agent is triethanol amine fatty acid.
Claim 19
Dependent Claim
14 words
A method as claimed in claim 1, wherein the dispersing agent is monoethylene glycol.
Claim 20
Dependent Claim
25 words
A method as claimed in claim 1, wherein the dispersing agent is mixed with nitroglycerine, nitroglycol and ortho-nitrotoluene before the addition of the other ingredients.
References Cited (Backward Citations)
US4047989A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-11-11 | 1984-05-12 | 1984-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-11-11 | 1988-05-12 | 1988-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-11-11 | 1992-05-12 | 1992-11-11 | $7700.00 | Window Closed / Lapsed |