GB2153809A - Pyrotechnic composition for the production of flashes of light - Google Patents
Pyrotechnic composition for the production of flashes of light Download PDFInfo
- Publication number
- GB2153809A GB2153809A GB08406946A GB8406946A GB2153809A GB 2153809 A GB2153809 A GB 2153809A GB 08406946 A GB08406946 A GB 08406946A GB 8406946 A GB8406946 A GB 8406946A GB 2153809 A GB2153809 A GB 2153809A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pyrotechnic composition
- carrier substance
- mixture
- composition
- effect
- 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.)
- Withdrawn
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 82
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 239000000126 substance Substances 0.000 claims abstract description 40
- 239000002245 particle Substances 0.000 claims abstract description 26
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 22
- UBXAKNTVXQMEAG-UHFFFAOYSA-L strontium sulfate Chemical compound [Sr+2].[O-]S([O-])(=O)=O UBXAKNTVXQMEAG-UHFFFAOYSA-L 0.000 claims description 21
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 13
- 238000004200 deflagration Methods 0.000 claims description 12
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 claims description 12
- 150000003839 salts Chemical class 0.000 claims description 10
- GDDNTTHUKVNJRA-UHFFFAOYSA-N 3-bromo-3,3-difluoroprop-1-ene Chemical compound FC(F)(Br)C=C GDDNTTHUKVNJRA-UHFFFAOYSA-N 0.000 claims description 6
- 239000005956 Metaldehyde Substances 0.000 claims description 6
- AXZAYXJCENRGIM-UHFFFAOYSA-J dipotassium;tetrabromoplatinum(2-) Chemical compound [K+].[K+].[Br-].[Br-].[Br-].[Br-].[Pt+2] AXZAYXJCENRGIM-UHFFFAOYSA-J 0.000 claims description 6
- 235000010299 hexamethylene tetramine Nutrition 0.000 claims description 6
- 239000004312 hexamethylene tetramine Substances 0.000 claims description 6
- 229910052749 magnesium Inorganic materials 0.000 claims description 6
- 239000011777 magnesium Substances 0.000 claims description 6
- GKKDCARASOJPNG-UHFFFAOYSA-N metaldehyde Chemical compound CC1OC(C)OC(C)OC(C)O1 GKKDCARASOJPNG-UHFFFAOYSA-N 0.000 claims description 6
- 229960004011 methenamine Drugs 0.000 claims description 6
- 229910001487 potassium perchlorate Inorganic materials 0.000 claims description 6
- 239000000779 smoke Substances 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 239000002585 base Substances 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000011159 matrix material Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052783 alkali metal Inorganic materials 0.000 claims description 3
- 150000001340 alkali metals Chemical class 0.000 claims description 3
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 3
- -1 alkaline earth metal sulphates Chemical class 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 238000004806 packaging method and process Methods 0.000 claims description 2
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 claims 1
- 229910021653 sulphate ion Inorganic materials 0.000 claims 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B29/00—Compositions containing an inorganic oxygen-halogen salt, e.g. chlorate, perchlorate
- C06B29/02—Compositions containing an inorganic oxygen-halogen salt, e.g. chlorate, perchlorate of an alkali metal
- C06B29/08—Compositions containing an inorganic oxygen-halogen salt, e.g. chlorate, perchlorate of an alkali metal with an organic non-explosive or an organic non-thermic component
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B29/00—Compositions containing an inorganic oxygen-halogen salt, e.g. chlorate, perchlorate
- C06B29/02—Compositions containing an inorganic oxygen-halogen salt, e.g. chlorate, perchlorate of an alkali metal
- C06B29/04—Compositions containing an inorganic oxygen-halogen salt, e.g. chlorate, perchlorate of an alkali metal with an inorganic non-explosive or an inorganic non-thermic component
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B4/00—Fireworks, i.e. pyrotechnic devices for amusement, display, illumination or signal purposes
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Air Bags (AREA)
Abstract
A pyrotechnic composition for the production of flashes of light, is described and comprises a combustible carrier substance, in which there are distributed particles of an effect mixture which deflagrates in the manner of a lightning flash. <IMAGE>
Description
SPECIFICATION
Pyrotechnic composition for the production of flashes of light
This invention relates to a pyrotechnic composition for the production of flashes of light, which may also be presented in the form of a table firework.
According to the present invention there is provided a pyrotechnic composition for the production of flashes of light, comprising a combustible carrier substance in which particles of an effect mixture which deflagrates in the manner of a lightning flash are distributed.
After ignition of the present pyrotechnic composition, firstly only the carrier substance deflagrates, utilizing the atmospheric oxygen. As this proceeds, the particles of the effect mixture which are embedded in the carrier substance are gradually exposed and are heated up by the burning of the carrier substance so that they are ignited when their ignition temperature is reached, upon which, owing to their composition, a deflagration in the manner of a lightning flash takes place. The carrier substance continues to burn off, so that this process is repeated at time intervals corresponding to the distribution of the effect particles until the carrier substance is altogether spent.
In an embodiment of the invention, the pyrotechnic composition comprising the carrier substance and the effect particles is in the form of a pourable mixture. A pourable mixture such as this, when applied onto a non-combustible base, then burns up slowly after ignition, upon which, according to the progress of deflagration, flashes of light are produced consecutively.
In another embodiment of the invention, the carrier substance is formed as a shaped body into which the effect particles are embedded. The carrier substance here may be compressed, for example, in tablet form, so that the handling of the pyrotechnic composition is simplified considerably with regard to packaging, transporting and use; in particular the composition may be in the form of unit "doses".
The carrier substance preferably consists of a material which burns without smoke and as far as possible without colour, metaldehyde and hexamethylene-tetramine being preferred carrier substances.
The effect mixture preferably consists of a mixture of magnesium powder, potassium perchlorate or ammonium perchlorate and a metallic salt, alkali metal or alkaline earth metal sulphates conveniently being used as metallic salts. As a deflagration with an intense colour may not in fact be desired for such pyrotechnic applications, barium sulphate or strontium sulphate is preferably used as the metallic salt. In order to be able to bring about a deflagration of the effect particles in the manner of a lightning flash, ie. to produce a clean discharge of the flash, the magnesium powder is preferably used in a grain size of less than 100 microns, more preferably less than 50 microns.
By adding xylocoll to the total mixture, it is pos
sible to control the rate of flash.
A preferred composition according to the inven
tion comprises by weight a mixture of:
52% hexamethylene-tetramine
25% potassium perchlorate
13% strontium sulphate or barium sulphate
10% magnesium.
Another preferred composition of a pyrotechnic composition according to the invention comprises
by weight a mixture of
30% metaldehyde
15% strontium sulphate or barium sulphate
15% magnesium
15% ammonium perchlorate
25% xylocoll.
In order to enable the invention to be more readily understood, reference will now be made to the accompanying drawing, which illustrates diagrammatically and by way of example an embodiment and which is a side view of a pyrotechnic composition during combustion.
The drawing shows of combustion of a pyrotechnic composition according to the invention, constructed as a shaped body. The shaped body consists of a matrix 1, which is formed by the combustible carrier substance, in which are embedded effect particles 2 of a mixture which deflag rates in the manner of a lightning flash. A shaped body such as this is placed onto a noncombustible base 3 and is ignited. Firstly, only the carrier substance forming the matrix of the shaped body burns, utilizing the atmospheric oxygen in the vicinity.As the deflagration progresses, as illustrated, effect particles are respectively exposed, which are heated by the flame 4 which burns without smoke and practically without colour, and when the ignition temperature is reached react with each other in the manner of a lightning flash, so that an intense flash of light occurs on the burning surface, as is indicated in the drawing. If barium sulphate or strontium sulphate is used, a green or red coloured flash of light respectively is produced. Corresponding to the progress of the deflagration of the carrier substance, gradually all the effect particles are exposed and can react with each other.
1. A pyrotechnic composition for the production of flashes of light, comprising a combustible carrier substance in which particles of an effect mixture which deflagrates in the manner of a lightning flash are distributed.
2. A pyrotechnic composition as claimed in claim 1, wherein the composition comprising the carrier substance and the effect particles is in the form of a pourable mixture.
3. A pyrotechnic composition as claimed in claim 1, wherein the carrier substance is formed as a shaped body, into which the effect particles are embedded.
4. A pyrotechnic composition as claimed in any one of claims 1 to 3, wherein the carrier substance comprises a material which burns without smoke.
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (16)
1. A pyrotechnic composition for the production of flashes of light, comprising a combustible carrier substance in which particles of an effect mixture which deflagrates in the manner of a lightning flash are distributed.
2. A pyrotechnic composition as claimed in claim 1, wherein the composition comprising the carrier substance and the effect particles is in the form of a pourable mixture.
3. A pyrotechnic composition as claimed in claim 1, wherein the carrier substance is formed as a shaped body, into which the effect particles are embedded.
4. A pyrotechnic composition as claimed in any one of claims 1 to 3, wherein the carrier substance comprises a material which burns without smoke.
5. A pyrotechnic substance as claimed in any one of claims 1 to 4, wherein the combustible carrier substance is metaldehyde.
6. A pyrotechnic composition as claimed in any one of claims 1 to 4, wherein the combustible carrier substance is hexamethylene-tetramine.
7. A pyrotechnic composition as claimed in any one of claims 1 to 6, wherein the effect particles comprise a mixture of magnesium powder, potassium perchlorate or ammonium perchlorate and a metallic salt.
8. A pyrotechnic composition as claimed in claim 7, wherein the metallic salt is an alkali metal or alkaline earth metal sulphate.
9. A pyrotechnic composition as claimed in claim 7 or 8, wherein the metallic salt is barium sulphate.
10. A pyrotechnic composition as claimed in claim 7 or 8, wherein the metallic salt is strontium sulphate.
11. A pyrotechnic composition as claimed in any one of claims 1 to 10, wherein xylocoll is added to the composition to control the rate of flash.
12. A pyrotechnic composition as claimed in any one of claims 1 to 10, wherein the composition comprises by weight a mixture of
52% hexamethylene tetramine,
25% potassium perchlorate,
13% strontium or barium sulphate and
10% magnesium.
13. A pyrotechnic composition as claimed in any one of claims 1 to 11, wherein the composition comprises, by weight, a mixture of
30% metaldehyde
15% strontium sulphate or barium sulphate,
15% magnesium,
15% ammonium perchlorate and
25% xylocoll.
14. A pyrotechnic composition as claimed in any one one of claims 1 to 13, wherein the effect mixture comprises magnesium powder having a grain size of a maximum of 100 microns.
15. A pyrotechnic composition as claimed in any one of claims 1 to 14, wherein the effect mixture comprises magnesium powder having a grain size of a maximum of 50 microns.
16. A pyrotechnic composition for the production of flashes of light substantially as hereinbefore described with reference to the accompanying drawing.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19843402546 DE3402546A1 (en) | 1984-01-26 | 1984-01-26 | PYROTECHNICAL SET FOR THE PRODUCTION OF FLASHES |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB8406946D0 GB8406946D0 (en) | 1984-04-18 |
| GB2153809A true GB2153809A (en) | 1985-08-29 |
Family
ID=6225901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08406946A Withdrawn GB2153809A (en) | 1984-01-26 | 1984-03-16 | Pyrotechnic composition for the production of flashes of light |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE3402546A1 (en) |
| FR (1) | FR2558947A1 (en) |
| GB (1) | GB2153809A (en) |
| IT (1) | IT1177588B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2681678A1 (en) * | 1991-09-19 | 1993-03-26 | Hesto Jean Francois | Method for causing naked flames to rise |
| CN100398974C (en) * | 2002-04-04 | 2008-07-02 | 石柏青 | Non-pollution safety fireworks |
| WO2005123272A3 (en) * | 2004-02-27 | 2009-06-11 | Univ Michigan | Liquid feed flame spray modification of nanoparticles |
| GB2472648A (en) * | 2009-08-14 | 2011-02-16 | John Douglas Michael Wraige | Pyrotechnic composition and device |
| GB2502459A (en) * | 2009-08-14 | 2013-11-27 | John Douglas Michael Wraige | Pyrotechnic device consolidated to form a tablet |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19614007C2 (en) * | 1996-04-09 | 2001-06-13 | Nico Pyrotechnik | Pyrotechnic kit for producing acoustic and optical effects and process for its production |
| DE102004047231B4 (en) * | 2004-09-28 | 2008-08-21 | Rheinmetall Waffe Munition Gmbh | submunitions |
| DE102005020159B4 (en) * | 2005-04-29 | 2007-10-04 | Rheinmetall Waffe Munition Gmbh | Camouflage and deception ammunition for the protection of objects against missiles |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1084944A (en) * | 1964-01-29 | 1967-09-27 | Bofors Ab | Illuminating composition |
| GB1202390A (en) * | 1967-11-06 | 1970-08-19 | Astra Fireworks Ltd | Improvements in or relating to pyrotechnic compositions |
| GB1227191A (en) * | 1967-05-31 | 1971-04-07 | ||
| GB1284499A (en) * | 1970-03-26 | 1972-08-09 | Pains Wessex Ltd | Improvements in and relating to pyrotechnic light-producing compositions |
| GB1317254A (en) * | 1969-06-10 | 1973-05-16 | Pains Wessex Ltd | Pyrotechnic devices |
| GB1362712A (en) * | 1971-05-24 | 1974-08-07 | Kilgore Corp | Sparkler composition |
| GB1493912A (en) * | 1975-03-27 | 1977-11-30 | Dynamit Nobel Ag | Pyrotechnic sealing material |
| GB1505663A (en) * | 1974-07-11 | 1978-03-30 | Dow Corning | Incendiary composition |
| GB1515039A (en) * | 1975-07-03 | 1978-06-21 | Poudres & Explosifs Ste Nale | Illuminating pyrotechnic compositions |
| GB1520601A (en) * | 1977-03-04 | 1978-08-09 | Pains Wessex Ltd | Pyrotechnic composition |
| GB1590762A (en) * | 1976-10-30 | 1981-06-10 | Dynamit Nobel Ag | Tracer compositions |
-
1984
- 1984-01-26 DE DE19843402546 patent/DE3402546A1/en not_active Withdrawn
- 1984-03-07 IT IT47814/84A patent/IT1177588B/en active
- 1984-03-14 FR FR8403942A patent/FR2558947A1/en not_active Withdrawn
- 1984-03-16 GB GB08406946A patent/GB2153809A/en not_active Withdrawn
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1084944A (en) * | 1964-01-29 | 1967-09-27 | Bofors Ab | Illuminating composition |
| GB1227191A (en) * | 1967-05-31 | 1971-04-07 | ||
| GB1202390A (en) * | 1967-11-06 | 1970-08-19 | Astra Fireworks Ltd | Improvements in or relating to pyrotechnic compositions |
| GB1317254A (en) * | 1969-06-10 | 1973-05-16 | Pains Wessex Ltd | Pyrotechnic devices |
| GB1284499A (en) * | 1970-03-26 | 1972-08-09 | Pains Wessex Ltd | Improvements in and relating to pyrotechnic light-producing compositions |
| GB1362712A (en) * | 1971-05-24 | 1974-08-07 | Kilgore Corp | Sparkler composition |
| GB1505663A (en) * | 1974-07-11 | 1978-03-30 | Dow Corning | Incendiary composition |
| GB1493912A (en) * | 1975-03-27 | 1977-11-30 | Dynamit Nobel Ag | Pyrotechnic sealing material |
| GB1515039A (en) * | 1975-07-03 | 1978-06-21 | Poudres & Explosifs Ste Nale | Illuminating pyrotechnic compositions |
| GB1590762A (en) * | 1976-10-30 | 1981-06-10 | Dynamit Nobel Ag | Tracer compositions |
| GB1520601A (en) * | 1977-03-04 | 1978-08-09 | Pains Wessex Ltd | Pyrotechnic composition |
Non-Patent Citations (1)
| Title |
|---|
| }FIREWORKS PRINCIPLES AND PRACTICE} - LANCASTER SHIMIZU, 'BUTLER AND HALL-CHEM PUBLISHING & CO (1972) SEE P105- FLARE COMPOSITIONS; P99-101 BENGAL & COLOURED FIRE P93-PRESSED STARS AND FIG 33 P111; AND P174-FIRE PELLETS * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2681678A1 (en) * | 1991-09-19 | 1993-03-26 | Hesto Jean Francois | Method for causing naked flames to rise |
| CN100398974C (en) * | 2002-04-04 | 2008-07-02 | 石柏青 | Non-pollution safety fireworks |
| WO2005123272A3 (en) * | 2004-02-27 | 2009-06-11 | Univ Michigan | Liquid feed flame spray modification of nanoparticles |
| GB2472648A (en) * | 2009-08-14 | 2011-02-16 | John Douglas Michael Wraige | Pyrotechnic composition and device |
| GB2502459A (en) * | 2009-08-14 | 2013-11-27 | John Douglas Michael Wraige | Pyrotechnic device consolidated to form a tablet |
| GB2502460A (en) * | 2009-08-14 | 2013-11-27 | John Douglas Michael Wraige | Pyrotechnic composition with spark producing material |
| GB2472648B (en) * | 2009-08-14 | 2014-02-12 | John Douglas Michael Wraige | Composition and pyrotechnic device |
| GB2502459B (en) * | 2009-08-14 | 2014-03-12 | John Douglas Michael Wraige | Composition and pyrotechnic device |
| GB2502460B (en) * | 2009-08-14 | 2014-03-26 | John Douglas Michael Wraige | Composition and pyrotechnic device |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8406946D0 (en) | 1984-04-18 |
| IT1177588B (en) | 1987-08-26 |
| IT8447814A0 (en) | 1984-03-07 |
| FR2558947A1 (en) | 1985-08-02 |
| DE3402546A1 (en) | 1985-08-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |