US2123201A - Pyrotechnic compositions - Google Patents
Pyrotechnic compositions Download PDFInfo
- Publication number
- US2123201A US2123201A US155023A US15502337A US2123201A US 2123201 A US2123201 A US 2123201A US 155023 A US155023 A US 155023A US 15502337 A US15502337 A US 15502337A US 2123201 A US2123201 A US 2123201A
- Authority
- US
- United States
- Prior art keywords
- pyrotechnic
- pyrotechnic compositions
- composition
- compositions
- magnesium
- 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 description 16
- 239000000344 soap Substances 0.000 description 11
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 6
- 229910052749 magnesium Inorganic materials 0.000 description 6
- 239000011777 magnesium Substances 0.000 description 6
- 239000000446 fuel Substances 0.000 description 4
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 4
- ZJRXSAYFZMGQFP-UHFFFAOYSA-N barium peroxide Chemical compound [Ba+2].[O-][O-] ZJRXSAYFZMGQFP-UHFFFAOYSA-N 0.000 description 3
- 150000002978 peroxides Chemical class 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 235000021314 Palmitic acid Nutrition 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 235000021313 oleic acid Nutrition 0.000 description 1
- 150000002889 oleic acids Chemical class 0.000 description 1
- 150000002943 palmitic acids Chemical class 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
- 239000000700 radioactive tracer Substances 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
- C06C15/00—Pyrophoric compositions; Flints
Definitions
- This invention relates generally to pyrotechnic compositions, and more particularly it has reference to a composition in which an insoluble soap is employed as a waterproofing agent for the pur- 10 pose of prolonging its storage life.
- pyrotechnic compositions I will show a marked resistanceto the effects of humid air when they include a small quantity of an insoluble soap.
- a composition containing approximately 10% magnesium and 90% barium peroxide will be almost completely stable in air of 90% relative humidity if from 0.5% to 2.5% zinc stearate is included.
- Zinc stearate is only one of many insoluble soaps which may be used for this purpose.
- Some of the better known are stearates of aluminum, lead. magnesium, calcium. copper. and iron.
- Such soaps can also be made from oleic or palmitic acids. These latter soaps are soft, due to a lower titre of the fatty acid and are consequently not satisfactory for use with pyrotechnics. Examples of compositions which have remained stable in storage tests, are as follows:
- the zinc soap is of more suitable density and, therefore, can be more easily blended with other ingredients. It is preferred for pyrotechnic use.
- a pyrotechnic composition comprising Percent Magnesium 5 -25 Barium peroxide Zinc stearate I 05-10 2.
- a pyrotechnic composition comprising Percent Magnesium 5 -25 Barium peroxide 75 -95 An insoluble soap 05-10 3.
- a pyrotechnic composition comprising Percent Magnesium 5 -25 An alkaline earth peroxide '75 -95 An insoluble soap 0.5-10
- a pyrotechnic composition comprising Percent A metallic fuel 5 --25 An alkaline earth peroxide 75 -95 An insoluble soap 0.5-10
- a pyrotechnic composition containing a metallic fuel, an alkaline earth peroxide and an insoluble soap.
- a pyrotechnic composition containing a metallic fuel and an insoluble soap.
Landscapes
- Engineering & Computer Science (AREA)
- Metallurgy (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Air Bags (AREA)
Description
Patented July 12, 1938 QFFIC PYROTECHNIC COMPOSITIONS Charles H. Prltham, Philadelphia, Pa.
No Drawin 6 Claims.
Application July 22, 1937, Serial No. 155,023
(Granted under the act of March 3, 1883, as
' amended April 30, 1928; 370 0. G. 757) The invention described herein may be manufactured and used by or for the Government for governmental purposes, without the payment to me of any royalty thereon.
5 This invention relates generally to pyrotechnic compositions, and more particularly it has reference to a composition in which an insoluble soap is employed as a waterproofing agent for the pur- 10 pose of prolonging its storage life.
The problem of increasing the stability of pyrotechnic compositions is especially important in the case of tracer ammunition where the composition is exposed to the moist air in the cartridge 'case. Propellant powders in current use contain approximately 1% moisture, and in a closed space, the air in contact with the powder contains enough moisture to produce a relative humidity of 70% to 90%. When easily oxidized metallic fuels are present in the composition, such as magnesium, deterioration may be rapid enough to render the ammunition useless within a few y ars.
I have found that pyrotechnic compositions I -will show a marked resistanceto the effects of humid air when they include a small quantity of an insoluble soap. For example, a composition containing approximately 10% magnesium and 90% barium peroxide will be almost completely stable in air of 90% relative humidity if from 0.5% to 2.5% zinc stearate is included. Zinc stearate, however. is only one of many insoluble soaps which may be used for this purpose. Some of the better known are stearates of aluminum, lead. magnesium, calcium. copper. and iron. Such soaps can also be made from oleic or palmitic acids. These latter soaps are soft, due to a lower titre of the fatty acid and are consequently not satisfactory for use with pyrotechnics. Examples of compositions which have remained stable in storage tests, are as follows:
The zinc soap is of more suitable density and, therefore, can be more easily blended with other ingredients. It is preferred for pyrotechnic use.
I claim: 1. A pyrotechnic composition comprising Percent Magnesium 5 -25 Barium peroxide Zinc stearate I 05-10 2. A pyrotechnic composition comprising Percent Magnesium 5 -25 Barium peroxide 75 -95 An insoluble soap 05-10 3. A pyrotechnic composition comprising Percent Magnesium 5 -25 An alkaline earth peroxide '75 -95 An insoluble soap 0.5-10
4. A pyrotechnic composition comprising Percent A metallic fuel 5 --25 An alkaline earth peroxide 75 -95 An insoluble soap 0.5-10
5. A pyrotechnic composition containing a metallic fuel, an alkaline earth peroxide and an insoluble soap. I
6. A pyrotechnic composition containing a metallic fuel and an insoluble soap.
CHARLES H. PRITHAM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US155023A US2123201A (en) | 1937-07-22 | 1937-07-22 | Pyrotechnic compositions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US155023A US2123201A (en) | 1937-07-22 | 1937-07-22 | Pyrotechnic compositions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2123201A true US2123201A (en) | 1938-07-12 |
Family
ID=22553821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US155023A Expired - Lifetime US2123201A (en) | 1937-07-22 | 1937-07-22 | Pyrotechnic compositions |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2123201A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2430068A (en) * | 1944-04-19 | 1947-11-04 | Remington Arms Co Inc | Incendiary compositions |
| US3625855A (en) * | 1969-11-03 | 1971-12-07 | Us Navy | White smoke composition |
| US3770522A (en) * | 1970-08-18 | 1973-11-06 | Du Pont | Emulsion type explosive composition containing ammonium stearate or alkali metal stearate |
| EP0310580A3 (en) * | 1987-09-29 | 1990-01-10 | Aktiebolaget Bofors | A pyrotechnical charge |
-
1937
- 1937-07-22 US US155023A patent/US2123201A/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2430068A (en) * | 1944-04-19 | 1947-11-04 | Remington Arms Co Inc | Incendiary compositions |
| US3625855A (en) * | 1969-11-03 | 1971-12-07 | Us Navy | White smoke composition |
| US3770522A (en) * | 1970-08-18 | 1973-11-06 | Du Pont | Emulsion type explosive composition containing ammonium stearate or alkali metal stearate |
| EP0310580A3 (en) * | 1987-09-29 | 1990-01-10 | Aktiebolaget Bofors | A pyrotechnical charge |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101376049A (en) | Extinguishment combination with hot gas sol | |
| US2123201A (en) | Pyrotechnic compositions | |
| US3468730A (en) | Propellant composition containing an organic tetrazole derivative and metal oxidizer | |
| US2362767A (en) | Lubricants | |
| US2987997A (en) | Blasting cap | |
| US2001212A (en) | Priming composition | |
| US2131041A (en) | Nonexplosive pypotechnic composition | |
| ES396853A1 (en) | Detergent compositions | |
| US4129465A (en) | Smoke-generating composition | |
| US1797509A (en) | Electric blasting cap and ignition material for the same | |
| US4376001A (en) | Smoke composition | |
| US2643946A (en) | First fire charge composition | |
| US3645810A (en) | Solid fuel composition | |
| ES394951A1 (en) | Pesticidal compositions containing phosphoric acid esters and elemental sulphur | |
| US2095333A (en) | Ammunition | |
| US2718502A (en) | Lubricant compositions | |
| US2035509A (en) | Pyrotechnic composition | |
| US2327867A (en) | Ammunition | |
| GB1028924A (en) | Lubricating compositions containing heterocyclic thio-ethers of saturated carboxylic acids | |
| US3262824A (en) | Smokeless ashless signal flare composition containing ammonium perchlorate | |
| US3041862A (en) | Flash lamp and ignition means therefor | |
| GB500219A (en) | Improvements in and relating to repeatedly ignitable composition rods | |
| CA1038167A (en) | Agent and method for reducing firearm muzzle flash | |
| GB1033019A (en) | Rodenticide compositions and the manufacture thereof | |
| US2426549A (en) | Lubricant composition |