US3634155A - Priming composition - Google Patents
Priming composition Download PDFInfo
- Publication number
- US3634155A US3634155A US836159A US3634155DA US3634155A US 3634155 A US3634155 A US 3634155A US 836159 A US836159 A US 836159A US 3634155D A US3634155D A US 3634155DA US 3634155 A US3634155 A US 3634155A
- Authority
- US
- United States
- Prior art keywords
- lead
- mixture
- cellulose
- trinitroresorcinate
- percent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000203 mixture Substances 0.000 title abstract description 33
- 230000037452 priming Effects 0.000 title description 6
- 238000000034 method Methods 0.000 claims description 12
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 10
- 229920002678 cellulose Polymers 0.000 claims description 9
- 239000000020 Nitrocellulose Substances 0.000 claims description 6
- 229920001220 nitrocellulos Polymers 0.000 claims description 6
- SMEGJBVQLJJKKX-HOTMZDKISA-N [(2R,3S,4S,5R,6R)-5-acetyloxy-3,4,6-trihydroxyoxan-2-yl]methyl acetate Chemical compound CC(=O)OC[C@@H]1[C@H]([C@@H]([C@H]([C@@H](O1)O)OC(=O)C)O)O SMEGJBVQLJJKKX-HOTMZDKISA-N 0.000 claims description 3
- 229940081735 acetylcellulose Drugs 0.000 claims description 3
- 239000001913 cellulose Substances 0.000 claims description 3
- 229920002301 cellulose acetate Polymers 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- LNAZSHAWQACDHT-XIYTZBAFSA-N (2r,3r,4s,5r,6s)-4,5-dimethoxy-2-(methoxymethyl)-3-[(2s,3r,4s,5r,6r)-3,4,5-trimethoxy-6-(methoxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6r)-4,5,6-trimethoxy-2-(methoxymethyl)oxan-3-yl]oxyoxane Chemical compound CO[C@@H]1[C@@H](OC)[C@H](OC)[C@@H](COC)O[C@H]1O[C@H]1[C@H](OC)[C@@H](OC)[C@H](O[C@H]2[C@@H]([C@@H](OC)[C@H](OC)O[C@@H]2COC)OC)O[C@@H]1COC LNAZSHAWQACDHT-XIYTZBAFSA-N 0.000 claims description 2
- 239000001856 Ethyl cellulose Substances 0.000 claims description 2
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 claims description 2
- 235000010944 ethyl methyl cellulose Nutrition 0.000 claims description 2
- 229920000609 methyl cellulose Polymers 0.000 claims description 2
- 239000001923 methylcellulose Substances 0.000 claims description 2
- 235000010981 methylcellulose Nutrition 0.000 claims description 2
- 229920003087 methylethyl cellulose Polymers 0.000 claims description 2
- 150000001540 azides Chemical class 0.000 abstract description 18
- WETZJIOEDGMBMA-UHFFFAOYSA-L lead styphnate Chemical compound [Pb+2].[O-]C1=C([N+]([O-])=O)C=C([N+]([O-])=O)C([O-])=C1[N+]([O-])=O WETZJIOEDGMBMA-UHFFFAOYSA-L 0.000 abstract description 17
- 239000011230 binding agent Substances 0.000 abstract description 8
- 239000003999 initiator Substances 0.000 abstract description 7
- 239000002360 explosive Substances 0.000 abstract description 5
- 239000008187 granular material Substances 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000009969 flowable effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 244000007835 Cyamopsis tetragonoloba Species 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 229910000004 White lead Inorganic materials 0.000 description 1
- 235000010443 alginic acid Nutrition 0.000 description 1
- 229920000615 alginic acid Polymers 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- 239000008240 homogeneous mixture Substances 0.000 description 1
- ISEQAARZRCDNJH-UHFFFAOYSA-N lead(ii) azide Chemical compound [N-]=[N+]=N[Pb]N=[N+]=[N-] ISEQAARZRCDNJH-UHFFFAOYSA-N 0.000 description 1
- -1 methyl- Chemical group 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B41/00—Compositions containing a nitrated metallo-organic compound
- C06B41/02—Compositions containing a nitrated metallo-organic compound the compound containing lead
- C06B41/08—Compositions containing a nitrated metallo-organic compound the compound containing lead with a metal azide or a metal fulminate
Definitions
- PRlMllNG COMPGSITION This invention relates to explosive compositions. lt more particularly refers to a novel explosive composition and form useful as an initiator.
- a mixture, as a priming composition, of lead azide and lead trinitroresorcinate granulated in the wet state with binders It is preferred that the ratio of lead trinitroresorcinate to lead azide is about 5:95 to 95:5 weight percent with about 0.1 to 0.5 weight percent binder referred to the total weight. Because of the high sensitiveness to percussion and shock of a mixture of lead azide and lead trinitroresorcinate, the prior art did not consider production of such a mixture in granulated form.
- Suitable for use as binders are nitrocellulose, methyl-, ethylacetylor similar cellulose derivatives or alginates, guar flower and high polymers which are water-soluble or capable of swelling with water such as polyvinyl alcohols, polykylene glycols (ethers) or polyvinyl pyrrolidenes.
- nitrocellulose with a nitrogen content of l2to 14 percent and acetone-soluble acetyl cellulose.
- the lead trinitroresorcinate particle sizes can vary from coarse to fine. The distribution of components in the particles is better in fine particle sizes.
- the lead azide can be added in difierent percentages, Le, 88 percent 90 percent, 92 percent, 94 percent, and 98 percent.
- the granulating of the lead azide trinitroresorcinate mixtures can take place by precipitation of the binder from a solution (l) or by machine granulating or by hand.
- the formed cake is filtered off by suction, washed with alcohol, and then dried at an air temperature of 40 to 50 C.
- the dry product forms into readily flowable granules, which may be separated by sifting into the desired granular size fractions.
- the priming force of this mixture is now only at 50 percent of the mixture of 70 percent lead azide and 30 percent lead trinitroresorcinate.
- a further advantage of the priming composition in accordance with the invention is the fact that the same may be produced in large charges. Furthermore, the mixture which constitutes the initial primer is readily flowable. The impact and friction sensitivity is strongly diminished without having appreciably reduced the ignition sensitivity or priming limit.
- Method for the production of explosive initiator compositions comprising free-flowing granules of about 5 to weight percent lead azide, about 5 to 95 weight percent lead trinitroresorcinate and a binder; which method comprises forming a fluid form mixture of lead azide, lead trinitroresorcinate, a cellulose ester and a solvent for said cellulose ester; adding a nonsolvent liquid to said mixture in an amount and at a temperature sufficient to precipitate said lead azide, said lead trinitroresorcinate and said cellulose ester from said fluid form mixture; removing substantially all of the liquid from said precipitate; and recovering free-flowing granules of lead azide and lead trinitroresorcinate in the proportions specified above which granules are bonded by said cellulose ester.
- cellulose ester is a member selected from the group consisting of nitrocellulose, acetone soluble acetyl cellulose, methyl cellulose and ethyl cellulose.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Air Bags (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1771720A DE1771720B2 (de) | 1968-06-29 | 1968-06-29 | Initialsatz |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3634155A true US3634155A (en) | 1972-01-11 |
Family
ID=5700961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US836159A Expired - Lifetime US3634155A (en) | 1968-06-29 | 1969-06-24 | Priming composition |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3634155A (enrdf_load_stackoverflow) |
| DE (1) | DE1771720B2 (enrdf_load_stackoverflow) |
| FR (1) | FR2014445A1 (enrdf_load_stackoverflow) |
| GB (1) | GB1252816A (enrdf_load_stackoverflow) |
| NO (1) | NO125847B (enrdf_load_stackoverflow) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE28473E (en) * | 1971-08-23 | 1975-07-08 | Primary explosive compositions for explosive bonding or forming | |
| US3895980A (en) * | 1971-04-28 | 1975-07-22 | Kretschmer & Co F G | Coated lead azide compositions sensitive to flames but insensitive to friction |
| FR2478808A1 (fr) * | 1980-03-21 | 1981-09-25 | France Etat | Module a retard pyrotechnique et son procede de chargement |
| FR2556338A1 (fr) * | 1983-12-07 | 1985-06-14 | France Etat Armement | Procede de preparation d'explosifs par voie humide |
| US5557061A (en) * | 1989-03-20 | 1996-09-17 | Breed Automotive Technology, Inc. | High temperature stable, low input energy primer/detonator |
| DE4012663A1 (de) * | 1990-04-04 | 1998-05-07 | Breed Automotive Tech | Hochtemperaturstabile Zünd- oder Sprengkapsel mit geringer Auslöseenergie |
| CN104098416A (zh) * | 2014-07-23 | 2014-10-15 | 安徽理工大学 | 一种含有dnt的复合起爆药 |
| RU2826053C1 (ru) * | 2023-10-18 | 2024-09-03 | Акционерное общество "Муромский приборостроительный завод" | Неоржавляющий ударный состав |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB156429A (en) * | 1920-02-14 | 1921-01-13 | Wilhelm Eschbach | Process for the manufacture of initial explosive priming compositions |
| US2295104A (en) * | 1939-06-29 | 1942-09-08 | Western Cartridge Co | Manufacture of normal lead trinitroresorcinate and double salts thereof |
| US2421778A (en) * | 1943-12-24 | 1947-06-10 | Olin Ind Inc | Initiating explosives |
| US2464777A (en) * | 1945-11-26 | 1949-03-15 | Ici Ltd | Lead azide detonators |
| US3291663A (en) * | 1964-04-29 | 1966-12-13 | Taylor George William Charles | Lead styphnate containing methyl cellulose |
-
1968
- 1968-06-29 DE DE1771720A patent/DE1771720B2/de active Granted
-
1969
- 1969-06-24 US US836159A patent/US3634155A/en not_active Expired - Lifetime
- 1969-06-27 FR FR6921741A patent/FR2014445A1/fr not_active Withdrawn
- 1969-06-27 GB GB1252816D patent/GB1252816A/en not_active Expired
- 1969-06-28 NO NO2714/69A patent/NO125847B/no unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB156429A (en) * | 1920-02-14 | 1921-01-13 | Wilhelm Eschbach | Process for the manufacture of initial explosive priming compositions |
| US2295104A (en) * | 1939-06-29 | 1942-09-08 | Western Cartridge Co | Manufacture of normal lead trinitroresorcinate and double salts thereof |
| US2421778A (en) * | 1943-12-24 | 1947-06-10 | Olin Ind Inc | Initiating explosives |
| US2464777A (en) * | 1945-11-26 | 1949-03-15 | Ici Ltd | Lead azide detonators |
| US3291663A (en) * | 1964-04-29 | 1966-12-13 | Taylor George William Charles | Lead styphnate containing methyl cellulose |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3895980A (en) * | 1971-04-28 | 1975-07-22 | Kretschmer & Co F G | Coated lead azide compositions sensitive to flames but insensitive to friction |
| USRE28473E (en) * | 1971-08-23 | 1975-07-08 | Primary explosive compositions for explosive bonding or forming | |
| FR2478808A1 (fr) * | 1980-03-21 | 1981-09-25 | France Etat | Module a retard pyrotechnique et son procede de chargement |
| EP0036810A1 (fr) * | 1980-03-21 | 1981-09-30 | ETAT-FRANCAIS représenté par le Délégué Général pour l' Armement | Procédé pour le chargement d'un module à retard pyrotechnique |
| FR2556338A1 (fr) * | 1983-12-07 | 1985-06-14 | France Etat Armement | Procede de preparation d'explosifs par voie humide |
| US5557061A (en) * | 1989-03-20 | 1996-09-17 | Breed Automotive Technology, Inc. | High temperature stable, low input energy primer/detonator |
| DE4012663A1 (de) * | 1990-04-04 | 1998-05-07 | Breed Automotive Tech | Hochtemperaturstabile Zünd- oder Sprengkapsel mit geringer Auslöseenergie |
| DE4012663C2 (de) * | 1990-04-04 | 2001-06-28 | Breed Automotive Tech | Zündeinleitungszusammensetzung |
| CN104098416A (zh) * | 2014-07-23 | 2014-10-15 | 安徽理工大学 | 一种含有dnt的复合起爆药 |
| RU2826053C1 (ru) * | 2023-10-18 | 2024-09-03 | Акционерное общество "Муромский приборостроительный завод" | Неоржавляющий ударный состав |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1252816A (enrdf_load_stackoverflow) | 1971-11-10 |
| NO125847B (enrdf_load_stackoverflow) | 1972-11-13 |
| DE1771720B2 (de) | 1975-12-04 |
| FR2014445A1 (enrdf_load_stackoverflow) | 1970-04-17 |
| DE1771720A1 (de) | 1972-02-03 |
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