GB2502459A - Pyrotechnic device consolidated to form a tablet - Google Patents
Pyrotechnic device consolidated to form a tablet Download PDFInfo
- Publication number
- GB2502459A GB2502459A GB1312567.9A GB201312567A GB2502459A GB 2502459 A GB2502459 A GB 2502459A GB 201312567 A GB201312567 A GB 201312567A GB 2502459 A GB2502459 A GB 2502459A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tablets
- tablet
- sparks
- burnt
- composition
- 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.)
- Granted
Links
- 239000000203 mixture Substances 0.000 claims abstract description 35
- 239000000463 material Substances 0.000 claims abstract description 14
- 239000005956 Metaldehyde Substances 0.000 claims abstract description 11
- GKKDCARASOJPNG-UHFFFAOYSA-N metaldehyde Chemical compound CC1OC(C)OC(C)OC(C)O1 GKKDCARASOJPNG-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000000853 adhesive Substances 0.000 claims abstract description 6
- 230000001070 adhesive effect Effects 0.000 claims abstract description 6
- 238000002485 combustion reaction Methods 0.000 claims abstract description 6
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 150000002923 oximes Chemical class 0.000 claims abstract description 5
- 239000004312 hexamethylene tetramine Substances 0.000 claims abstract description 3
- 235000010299 hexamethylene tetramine Nutrition 0.000 claims abstract description 3
- 238000007373 indentation Methods 0.000 claims abstract 2
- 239000004615 ingredient Substances 0.000 description 15
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 8
- 229910052709 silver Inorganic materials 0.000 description 8
- 239000004332 silver Substances 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 6
- 239000010949 copper Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 229910052749 magnesium Inorganic materials 0.000 description 6
- 239000011777 magnesium Substances 0.000 description 6
- NDEMNVPZDAFUKN-UHFFFAOYSA-N guanidine;nitric acid Chemical compound NC(N)=N.O[N+]([O-])=O.O[N+]([O-])=O NDEMNVPZDAFUKN-UHFFFAOYSA-N 0.000 description 5
- 239000006187 pill Substances 0.000 description 5
- 239000010936 titanium Substances 0.000 description 5
- 229910052719 titanium Inorganic materials 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000003610 charcoal Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 description 3
- 229910052808 lithium carbonate Inorganic materials 0.000 description 3
- 229910052712 strontium Inorganic materials 0.000 description 3
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- -1 titanium hydride Chemical compound 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- XTEGARKTQYYJKE-UHFFFAOYSA-M Chlorate Chemical compound [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 description 2
- 229920001353 Dextrin Polymers 0.000 description 2
- 239000004375 Dextrin Substances 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 241000220317 Rosa Species 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 235000019425 dextrin Nutrition 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052758 niobium Inorganic materials 0.000 description 2
- 239000010955 niobium Substances 0.000 description 2
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052715 tantalum Inorganic materials 0.000 description 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229920008712 Copo Polymers 0.000 description 1
- 239000005749 Copper compound Substances 0.000 description 1
- 102100033189 Diablo IAP-binding mitochondrial protein Human genes 0.000 description 1
- 101710101225 Diablo IAP-binding mitochondrial protein Proteins 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 208000010201 Exanthema Diseases 0.000 description 1
- 241001536352 Fraxinus americana Species 0.000 description 1
- 240000006989 Jasminum humile Species 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 244000171022 Peltophorum pterocarpum Species 0.000 description 1
- 241001092500 Photinia x fraseri Species 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- 241000098700 Sarcocheilichthys parvus Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- GANNOFFDYMSBSZ-UHFFFAOYSA-N [AlH3].[Mg] Chemical compound [AlH3].[Mg] GANNOFFDYMSBSZ-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 1
- 239000003830 anthracite Substances 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- KVBYPTUGEKVEIJ-UHFFFAOYSA-N benzene-1,3-diol;formaldehyde Chemical compound O=C.OC1=CC=CC(O)=C1 KVBYPTUGEKVEIJ-UHFFFAOYSA-N 0.000 description 1
- 150000001639 boron compounds Chemical class 0.000 description 1
- RLDQYSHDFVSAPL-UHFFFAOYSA-L calcium;dithiocyanate Chemical compound [Ca+2].[S-]C#N.[S-]C#N RLDQYSHDFVSAPL-UHFFFAOYSA-L 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 150000001880 copper compounds Chemical class 0.000 description 1
- QYCVHILLJSYYBD-UHFFFAOYSA-L copper;oxalate Chemical compound [Cu+2].[O-]C(=O)C([O-])=O QYCVHILLJSYYBD-UHFFFAOYSA-L 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 201000005884 exanthem Diseases 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- ZJYYHGLJYGJLLN-UHFFFAOYSA-N guanidinium thiocyanate Chemical compound SC#N.NC(N)=N ZJYYHGLJYGJLLN-UHFFFAOYSA-N 0.000 description 1
- BDAGIHXWWSANSR-NJFSPNSNSA-N hydroxyformaldehyde Chemical compound O[14CH]=O BDAGIHXWWSANSR-NJFSPNSNSA-N 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 229910001959 inorganic nitrate Inorganic materials 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- MYWUZJCMWCOHBA-VIFPVBQESA-N methamphetamine Chemical compound CN[C@@H](C)CC1=CC=CC=C1 MYWUZJCMWCOHBA-VIFPVBQESA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229940028444 muse Drugs 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000004323 potassium nitrate Substances 0.000 description 1
- 235000010333 potassium nitrate Nutrition 0.000 description 1
- GMVPRGQOIOIIMI-DWKJAMRDSA-N prostaglandin E1 Chemical compound CCCCC[C@H](O)\C=C\[C@H]1[C@H](O)CC(=O)[C@@H]1CCCCCCC(O)=O GMVPRGQOIOIIMI-DWKJAMRDSA-N 0.000 description 1
- 206010037844 rash Diseases 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 150000003388 sodium compounds Chemical class 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910000018 strontium carbonate Inorganic materials 0.000 description 1
- KQAGKTURZUKUCH-UHFFFAOYSA-L strontium oxalate Chemical compound [Sr+2].[O-]C(=O)C([O-])=O KQAGKTURZUKUCH-UHFFFAOYSA-L 0.000 description 1
- FXWRHZACHXRMCI-UHFFFAOYSA-L strontium;diformate Chemical compound [Sr+2].[O-]C=O.[O-]C=O FXWRHZACHXRMCI-UHFFFAOYSA-L 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229910000048 titanium hydride Inorganic materials 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- QSGNKXDSTRDWKA-UHFFFAOYSA-N zirconium dihydride Chemical compound [ZrH2] QSGNKXDSTRDWKA-UHFFFAOYSA-N 0.000 description 1
- 229910000568 zirconium hydride 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
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B21/00—Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
- C06B21/0033—Shaping the mixture
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B33/00—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B43/00—Compositions characterised by explosive or thermic constituents not provided for in groups C06B25/00 - C06B41/00
-
- 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)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
A pyrotechnic device comprises a composition comprises metaldehyde and/or hexamethylenetetramine and/or an oxime, and a material which produces sparks during combustion, wherein the composition is consolidated to form a tablet, the tablet being mounted on a base surface on edge. Preferably the base surface is flat and contains a groove, an indentation, a pattern of raised region, or one or more spigots to receive and retain the tablet. In one embodiment the tablet is affixed to the base surface by an adhesive.
Description
COMPOSITION AND PYROTECHMC DEVICE
This invention relates to new compositions of hiatter comprising metaldehyde and/ar hexamethylenetetrarnine andior an oxime such as dimethylgcxime. It relates also to pyrotechnic devices comprising such compositions of matter Wil Oh are useful, primarily, but not excIusivei', for appcation indoors in a domestic environment, The use of metaldehyde n pyrotechnc tems and rrewoRS for idoor appIcation (known in the art as indoor fireworks" has been known for many cecados, Up now, the devices have been fairly hrnited. One such device simply produces meta/dehyde snow by the process of subl*imatDn. Oiler devices praeuce stead' flames, which may be cofcured by the addition of compoundscf. fbr example, bahum, lithium, sodium, or strontium, or produce flames, which rny be natura I or coloured due tc*.the additiOn of. for example, the aforementioned cornponds OUT which have superirnosed upon them a flasftng or anin* thing efFect brougHt about by induding a small quanfity of a suitable inorganIc chlorate and organic fudi into the composition.
The devices mentioned in the preceding paragraph are wefl known and produce.their intended effects very satisfactorily. However the development ci such devices has stagnated. and as rentioned they have been availaie for many decades. Thus, consumers tend to: view such devices with a degree of antipathy and their usain domestic entertainment.has diminished as a result. There is therefore a need to expard the range ci effects that can be produced by indoor fireworks so that the entertainment va.iu.e that can be achieved is enhanced.
In. accordance with one spect of the invention, there is provided a composition comprising rretdehydë and/or hexarnet ylenCtetraininé and/or an oxime. and.amateriäi whith produces sparks during combustion, Ii has been fourth rather supnsngly that this type of cornpusiUon does actually produce copos quantities o sparks whor burning It had not been rca sed that Itus would be the case because metaictehyde. hexamethylendtetramine and Oxirnes burn very gent!y (hence making them suitable for use as the base material in indoor fireworks). producing. virtualy no pressure in the burning surlacect the*cc'npcsition. As a resuft, significant ejection of
I
particles from the buminQ surface:, wf.ich lead to the production of sparks, wOuld. not he epected. Instead, ft was epected that thC spark producing materii would either be consumed during combustion or remain as a residue. By mixinçmntaldehyde and/or hexamethylonetetramine and/bran oxime with matedals which generate sparks. when S heated in the flar. e produced when the met&dehyde ahd/or hexamethyenetetramine and/ or oirne burns in air the range of effects is enhanced and satisfies the need nentianed above -In atypical rn.bodimont, the metaidehyde andior hexarnet.hylenetetramineandtoroxini.e will be present as the majority ccmponent by weght.
1.0 Where is used, the oxme istoaU dimeth4iyoxtne.
Experimentation associated with this invention has shown that the metaldefiyde, hexamc.hylenetetramine or okime itay be uSed in th5 absence of the other two.
Afterriiei-ailytwo or all three of the compounds may be. used in aty proportions together.
1.5 iypicaUy the park produoih hiaté.riai ccrnptiseS one or morn f Frn, tëei, chromium..
akini nium. mane5Urn, cobait, .tr1iLm haftiftirn, Z(rcctiiunt hibburn, taPtattMti a zircoriurn-nicke,l alloy, zirconium hydride. titanium hydride, a magnesium-aluminium allay, carbon otnium carbooft-de ntanum boride jrcornr boride zgcontum stncde and silicon carbide. The spark producing materiat will typically be employed in powdered form.
The refdrer.c.e to carbon in the above list of spark producing materials includes pure carbon and also other forms of carbon, such as wood charcoal. sugar charcoal, animal charcoaL graphite or anthracite, In sonic of the preferred embodiments, the spark prOducing material comprises one or mare of: magnesium grade 3 cut or atomisod magnesium grade 6 cut or atomised, titanium 250 mesh or finer, h:afnium 40 microns or less, niobium 5 microns or less.
tantalum 5 microns or lESS, fOfl 10 miCrons or less, magneswrmaluminiun alloy (magnaiium 100 mesh or linet titanium carbonitride 2microns or less and aluminium 200 mesh or finer. I)
The spark producin.g material ma be coated with a corrosion inhibitor, for example by cnrornating, molybdahog, or by applying a coating of a salt of 3, 5 dintrobenzoc ocie ci accaroid rosin.
Other sthtabie ingredients to add colout to the spark producing flame may be induded in the mixtures as desired, Thus, the composidon may further compdse a material which procuces a cdloured flame during combustion. Such material typically comprises one or more of the following materlais: a barium.comound, a boron compound. a copper compound, a thLmcompounc a sodium compound and a stroniuri compound In preferred embodiments,. the colour producing material comprises one or more ct: copper oxalate, copper phthalocyanre copper oxychlo de strnrltnimn carbonate, strontium formate, stontiurn oalato, lithium carbonate and boron tnoxde The composition may furTher compdse a colour enhancing material Ic assiet colour production in the flame.
Typicafly, the colour enhancing matetial domprises dhlorihe. Preferabl3., the dolour enhancing material is an organic material comprising chlorine, such as chlorinated rubber.
Other ingredients. tot example an oxidant or a material whihh will decompoSe yield a gas may be added to the mixture to affect its character by way of Vashing or animaung &fects or other r.odification to the spark efl'ects.
For example, the compositIon may further comprise one or more of: an inorganic ?0 perchiorate. such as potassium perchiorate, an inorgar. ic nitrate, such as potassium nitrate, or an organic compound, such as guanidinenitrate. guanidine thiocyanate or dioyandiàmide.
In sonic embodiments the composition further comprises a-' edriesive which may also serve as fuel for the inorganic nitrate or perchlôrate. This Is sometimes necessary to hind.
the ingredients together inthe brni of a iV or it may be required for purpcses of granulation. In other embodiments the ingredients may hetound by compression, for
example.
:urfljq:; a:, $. ta. to $ �etdn3 sli PItô, gum Ata.bfc1 rSd resin and nftroSubse. HowevasurstkflesS, averyweakadsveis ettorexmpgUngwnnipO&t1ons :iMm* of thts wwt!ele ($Sne *ottitcym*iS. pteerawmadiy %he:.th&tte( oft)wf1ame Is CiSsdwe? by adding water and thaws iasthequenutyevaporated:ae *&Sg th8 wit ôtturi UthiianidS; nilrate dr tdocys atoll esE. in sWflôI** SiUtr4:m*flflf1beflrarij4Je,,
lflt*::tabletfOfllT.
Ui (n acôórdnewfth aMood dcibe pçEppdflgth tdt. p$W$ �& typicaih,;the pyrotedSe device Is an frdoor ffrework.
Thopyrotechniede*ecthay cOrnprlsó mixtures dfthè tbJ Woh:pmduS as detibed :ab&aWlth ieiononatte flit a*t IdS pewdi or órWed(fl a cQAt*i% for i5 e?:.l fr, ealbp3iUtoL floiIor to aw*tnpp$uc. I!sEt :the:mxtures may be heaped uporspceadouton aficepro�orfire'resistantsurface and Pt*leraby, however, the composihan wñfl be consolidated in some way Thus In some cases $ 3i,ll�d, to bu a$l; bm1tipr *eS; tie �ry t4iii, atSeL WheninSlomi of pills or one �r rncreadhe&QcstcpeSttg agenis may be mnththcihthecompolionaaprocesthng aid, as4eszribeiabovt t*' bt hoô Ii "Ste frf us :cornpoStion The spindle or tt*owhservas the purpose ttf!$Mfl9 the wnposMon, may &IbASrónibedded fri tk: Von (for example, in atioletSugh 4S!t�r pill), oflttMy be n* ihtplaceWddhe$Wflt yftitttOh (fdt&atflp$,:t con diting theoonlposffioftaroundttwsplndle or hook 4: lithe composition scohtained o.r formed mb a pU or tablet the device may be ignited on a fireproof or ire-resistant base suface.
Thus, when in the forrn.of a tablet or pill, the tablet or pill may be mounted on a base surface. When in the form of a tablet, the tabFet may be mounted on the base surface in a B flat configuration. Allernativel the tablet may be mounted on the basd surface go ec,ige.
The tablet may be mounted on the base surface by.si:mply putting ft in place prior to ignion on the base surface which may be a flat surface, or the base surface may contain a groove or indentadon, or a pattern of raind regions or a spigot or sgots to receive and retain the tablet. Aftematively, it may be affixed by a suitable adhesive, preferably an tO adhesive which is non-combustible and which is infusible. A suitable. adhesive may comprise a.reso*rcinol formaldehyde condensation product cvred.with:paraformatdehyd*�, hexamthylenetetramineor an epoxy rein, In another embodiment the device comprises a support for suspending the composition abo'e a base surface, the compositioh being mounted on the sipçdrt. The support is typcaIIy mourned on the base surface or may osteac be hand held In the case of a hand-heid.support, the support typicallycomprises a rod or wire having:tirst and second portions, the composition bein aft ied to the first portion and the econd portion providing a handle by Whibh the rbd orwire rñày beheld, ir use.
The compositIon is typically in the form of a pUl or tablet which may be provided with one or more perforatiobs to act as a point or as points of suspension. The inrer portion or suçfaçe of the; or of each, perforation may be lined with a non-combustible infusible substance such as a ring or lining ot metal, or non-combustible infusible polymer. or some substance based on plaster of -ans ot smda matenal to provdo for continuing support as the comnosftion burns away.
lf the composition is confined in a container, the de'ice may compose a support for suspending the ntainer above a base surface, the container beihg nounied on the support. tn this case, the suppc rt may comprise a rod or wire having first and second portions, the.containerbeirig afFixed to the first portion and The second poTtion provlciinç: a handle by wft:oh the rod or wire fnay be hcd, in use.
In this case. when the composition or cOntainer is fltted to a suitable support and the composition is ignited and burnt suspended in the air, the pyrotechnic device may produce a significantly diIferent..and sometimes more spectacular effect. than.when burnt on a.
surface.
T�calty when the composition is burnL suspended in th& air the displayof sparks in d.c upwards drection.ehi.bfts considerable enhancement in the number of sparks arid the height to which they ascend, Furthermore, a sideways motion of sparks emanatThg threctIy from the burnin composition appears. These sparks are typically brighter and larger tf.an the ascending sparks and may. burn out by sputting into smafler sparks. Depending upon 1:0 the manner or supporting the composition h the air faMing sparks may also appear The dluantfty and uaiity pf the displaycuf sparks, pärticurIy & th aUingspark& is typicaHy less if the tablet, is supported in the air on, for exampte. a spiral of wine than if the hwer part. of the tablet is ccmpletety free.
in a third aspect of the invention. the.cbmposition of the 1irt aspect is used to make a pyrotechno device In order to produce the compositions according to this invention,, any suitable means of mixing hiay be mpIoyed, such as tumbling Thb weihed ingredients to.gethei or pCssib them seveial tiine through a suitably fine meth sieG.
If the composition is to be used in a container it is usually poured in and SiftPi tamped down or may be compressed tq an apprqpriate extent dependent on the applloation To form the compositions into p'j a composition containing an adhesije is dampened with a suitable solvent such as water or alcohol and the d.anip'cornposition is roMeO in known manner into suitably sized pius. flemativeii, the cornpoition can be formed into pills by means of a machine thrt produces sphedoai pellets.. if tablets are required:, the compositiod is either compressed in a mould or granulated and passed through a tabletting machine. The shape of the tablets can be chosen to suit any aesth1e.tic or practical requirement lithe final pyrotechnic device is to be burnt suspended in the air then tablets, rather than pellets or oontaid powders, ae usually the pref�rred lorm The tablets can be burnt hoI2on1à'Hy by for instance taying.them on a wire spiral before ignition.
Al.terneUvely, the tabldt QAn be suitably affixed. to a:hoft-cornbwthble rô,d whiph, in use an be held in or positioned on a suitable support or they can be dropped into a slot cut in a non-combusblo plate, efther.devioe..b&ng suspendedn a suit.nble.oentat.ion. the aic \t again perforated tablets can be suspended in the air from a spigot or hook or be fltted with a spindle or hook b' which the tablet maybe suspended, muse.
This invenhon s described further by the ollowing examples whch are given sole to provide more detail and not ?or any purpose of rcstrJctian,
Example 1
A mixture was made by passing the following quantities. of ingredients three times through a60 mesh BS sieve.
Metaldehyde 899 Copper phthalocyanftie Mgnesiun grade 3 cut 99 The mixture wan formed into tablets approximately 3mm thick by consolidation Fn a 1.2mm diameter mould. The, tablets were. cut diametdcally in heft, afflxed along their straight sides to metal rods and burnt suspended in the air. They produced a flame with a hint of green and many white sparlis.
Example 2
The procedure described in Example 1 ws repealed with the magnesium replaced by the.
same quantfty of 300 mesh titanium. The burning tablets piodUce longer lasting sparks than the tablets from Example 1. Many sparks.fc.ll in excess o 150mm.
Example 3
A mixture at the following quantiLes ciT ingredients ias produced in the same manner as deserbed in Example 1 Metaldehyde 769 Qoppor exalate 9g Mgnesium grade 3 but iSg Tha mixture was formed into tabk3ts as described in Example 1. When undMded tablets were burnt flat on a non-inflammable surface they produced a [lame with a green tip-Bright flashes occurred frdhithhëto tithe wfth white ash floating in the air. When dMddd tablets were attached to metal rods and burnt suspended hi the air a spectacular white sparking &fect was produced with a yellow flame.
Eflmpie 4 A rhixture accordin to the following reshptioh was prepthed in the wAy desribëd in
Example
Metaldehyde 87Mg GUanidine nitrate 1l.2g Copper o.xychloride tOg litanium 300 mesh (LSg The mixture was pranulated through a sieve of 2,0mm mesh opening hating first dampened it with water The wet granules were chied and formed!fltO tablets of diameter 12mm and thicknea approximately 2mm by passing them through a commercial tablettin,g machine. The tablets were mounteclon edge on a non-combustible infusible board-When burnt they produced a greenb[ue animated flame and white sprks.
Example.5
The IoUowing quaritwes of ngredtertt were pracessed as described n Exampe 4 Metadehyde 88Og Guanidine nitrate i1Og Hafnkirn <40 microns 1 Og The tabtets were burnt on edge on a non-combusUble infusible board and produced a rather transparent animated flame surrounded by ilver sparks.
Example 6
The follOwing quantities of ingredients were procesed as described in Exampe 4.
1 0 MetaldeIlyde 77.5g Guanidine nitrate iGog Strontium.c*.arbonate 2.09 Jitàhkth3C0.mSh l:5G When.burntflaton.a ncn-combuthbie infusible board the tablets produced an orange animated flame wUh a red tip and silver sparks.
Example 7
ExampFe 6 was rpeated except that. lithium carbonate replaced strontium carbonate.
When.burnton edge on a noncornhustJhFe infusibVe board the tablets produced aced anth,ated flame and silver sparks.
Example $
The fouowing quantities of ingredients were processed ifl the manner of Example 1.
Metaldehyde BBg Guanidine nitrate hg Niobiurn <5 ThronS ig 9.
The dwded tablets affixed by then straight edges to meta ions, wee burnt suspendec n the air by holding the free end of each rod in the hand. They produced a bushy flane full of golden sparks with bright sparks fathng down.
Example 9
Eample 8 was epea** ted replacing niobium by tantalum of slmar particle size, The result was the same.
Example 10
The lollowing cuantihes ol mg eclients weie processed r the n anrier of Example 1 except that [he tablets were not divided on qtfixod to rods Metaldehyde 92g Iron <.10 micron When burnt fiat on flo:n,combustihe infusible board the tablets produced a conical shaped flamo with nary gOidn sparks. some sparks coruscated in the characteristic v.ay of burning iron. When burnt on edge on tne.hoard the size of the flame and quantity of sparks was much increased..
Some tablets ware perforated axially by ddll.ing with a 2.0mm diameter driil. Spigots 20mm long and 1.5mm diemeter were fixed symmetrically into thc: tablets with resorcinol formaldehyde adhesive. The tablets wete suspended freely in the air by oiac.in*g each end of me spigots into wire loops held 150mm above aflat.surlace. When burnt the tablets developed a flame with a spectacular display of sparks mOving mainly upwards and.
downwards hut to some extent sideways as well.
Example 11
The following quantities of ingredients were processed as described in Example 4.
Metakiehyde 52Og Copper Oxyobloride i00g Strontium: tOuTiate 4Cg Potassairn perchiorate 22Mg Chlorinated rubber 4.Qg Aluminium 200 mesh to dust aMg De*trih 4.10 The tablets were aUnt flat oh a.noh-cqmbustibe infusible board and roduoéd a qeen blue. flame, bluetlashes and: silver sparFs.
Example 12
ThsIolhwing quantities of ingredients were processed as described n Example 4.
Meiadehyde 6:5Og 1 5 Potassium perbhbre 22Og Strontium oxalate.2Mg Chlorinated rubber 2Mg Titanium 300 mesh 4.5g Dextrin $.Sg When burnt flat on a non-combustible infusthte board the labiets produced red flashes and branching sflve sparks.
Example 13
The following quanMies of ingredients were processed in the manner of Example I except that the tablets warS used urdvided and were not affixed to rods.
Metadetiyde 95g Titan un carbon itride 2 microns Sq When burnt on edge on a non-combustibte infusible board the tablets produced a natural coloured flame and bright golden sparks.
Example 14
The foflowirig quanttttes of ingredients were mixed as described in Example 1.
Metaldehyde 95g Titanium c 250 msh. Sg The mixture was formed into nng shapec tablets by comoresson ri a mould such that tberr outsidediameter was 15mm, their inside diameter was 5mm and their thickness was 3mm.
3mm long ferrules of outside diameter 4;5m diateter and vith a hole diameter of 1mm were fixec rto the nra shaped tablets wth resorcnol-forrnatdehvde resin Two types of ferrule were used, one made from henolic resin and the otner made from casting powder based on anhydtou lëiijm:flphate The tthtetsere tuspcnded freely in theali at a height o!200mm by means of a metal rod puChed thrc ugh the ferruids..
When burnt a spectacular display of sparks was pmduced in which golden sparks rose and..
IS silver spark,s fell. There was a less pronpunced âiddvias movement.oI silver spatks.
Example 15
The following quantittc or ingtdrents wore nii>cd a cescubod in Example 1 Mejaldehyde 94g Magnesium grade 6 atomnised 6g The m!xture was formed mb taolets approximately 3mm thick by consohdatmon in a 7mm diameter mould. Half of the tablets were divided and burnt in the manner described in Example I. The remainder were oft undivided and not affixed to rods.
The undivided tablets were burnt on edge n a norcombustible inusthle board They produced faint sparks shooting rapidly in straight lines to distances often in excess of bOCmrrm.Thoonibus.don ended in a bust.offlrc. and a shower of low.ensfty as.h rising in the air. When Urn divided tablets were burnt fatni spatks.shoto Ito a disi.ance dften in xcQ pf 1�$thi 1, friPhtfl:; ,S *1: lflà 1 ttt4thrnàothst aroUnd the tabets, Exampteis it. ofloag;qusAtffiesth trtgr ePta were processed and burnt En thmanneSstibed inExani5 Magnesium Mimkiium alLoy (niagSiUn4lSM&vfls 7héuflCIMi. pmed:faint pW AichSii t4tdatt$st:2thm fr*n:tIS tabtetL The chided tablets produced tatnt sparks vihiéh shot cut to at least 20mm from the i:O tabiètt Brt silver fLashes surrounded the tablets.
Eample 11 Tb:i'fqKowin quanUtkMcf irr4redieMs wetepocS. and anth the manner 4esoilS in Earo�i* Obiieylgisme 95g 16 Mign&uthgrn tSñiSd * thOQtflg Outto al*it I%inm from the tablets. The combustion endedinaturSt olifameand some bwtnsity ásh:*hith rose in heaW. The IedtaNets3htfaint;pWhsoutto a4istañcéqffibQJ 140r!1,, ahc:biiYht flashes: aPPeared.atqflhid th tablets..
Exampli i8 £xamp:1B was re, exceptthattbe:motSdehyS was rep bydUnethyI$oz1rne The Wflsirfldai:flbQt9j) thflS,*:SO Mi O1uGWh3t tger than with n'iOtaktehyctaste fueL. iS"
ExSmpli 19 The foUowng quantities of ingredients were processed as described in Example 4.
Metaidéh'de 64g Polassium nitrate 25g Lithium carbonate 39 Tiianurn 250 meSh 49 Dextrin 4g When burnt the tablets produced silver sparks with the background of a reddish colowed Udme which was s?ightly animated.
Example 20
The ía [towng quantfties of in9redien ts were processed as described ii EampIe 1 Hexamethylenetetramin:e 95g Titahum*250 mesh 5g When the divided tat lets were burnt suspended in the air by hofriing the free end of each rod in the hand, they produced a display of silver sparks.
Example 21
The foUowhg quantities o.f ingredients were processed as described In Example 1 axcept that the tab.!ets ere not divided nor affixed to rod.a.
Metaidehyde 95g Magnesium aluminium aoy Sg magnaum) c 100 mesh When burnt on edge shyer sparks were produced which often split into several sparks.
Examp 22 fxarnplet. was repeated wfth the 959 of cimethylgiyoxime bSg rep'aced by 85g of hietaldehydc. ant. 1C Of ditelhylglyoxite Wher burnt, the undivkled tablets produced faint sparks shoobng out to distances Often ii excess of 80mm, The divided tablets produced:fairit sparks shooting cu tto distances somollmes in excess of gcmrn and brigftt Rashes of lht appeared around.the tablets.
Example 23
Examblé 20 was repeakd with the 95 d.f heàñiéthCñettrarhind beihd réplaOed by 8Sg of metaldehyde and lOg of hexamethylenetetramine.
When the dMded tablets were burnt suspended in the air by holding the free end of each rod ii the handtheyfrodubed áispla of BvOr arks.
Example 24
Example 17 waS repeated with te 959 of dimethyJglyo.i e being replaced by90g of drnethylglyoxime. and 5g of hexarnethylenete.tramine.
The undivided and dMded tablets produced the same effect as describedin Ekarnpie 17 wh-n. bumL
1.5 Example 25
The 899 ofm.etaldehyde in Example 2was repaoedby a rnxture of 5g of hbxanidthibhetdt?ä?Pine, fig of dirnethylglyoxirne ahd 76 of thelaid.ehyde.
The burning tablets produced sparks with smil r.cha:racterj.stjcs to:those of example 2, but all trace of cotouration to the flame due fc the copper phthaiocyanine was absent in the atove examples, ip the event that the spa rk producing materials are sat ject to cOrrosion, as the case may be with, for example iron and magnsim, the materials can be coaled either themicafty or physically, to nhitit.any deleterious effect, xamples of chemical coafing are me known processes of chrornating or noiybdating. Exarnpes of physical coating are the known processes of app'ying coatIngs of salts of.3. 5 dnitrbenzoic acid and accaroid resin, Th�$ Th act spptiatent ma$a*1v$*DttM edig er'a4mples may berep1acdwiiI: fleE steels c&omium,ccbaitzrmonrunL,a 4roflilfl4ibkelsftby, 4rconiwtt hydr3de thaóiut*byrda carbon, tkarüuth:boride fld *tanimi slr carb :5 ShrjuJQrJ U$e dleflt!ie *twJIaPp$te1$ O*pdu$1 r!*sik$q!tI the prec4ng examples may::b edvtWarty ofaSiummpotS,:a boron ornpew4i sodium **w4 böEô:**dOi ai4wou1Upi !n P*flff*sh* U$$.&4 4IhJE*flQ$P�SiaS tatin sMac, gum Arabic4 stresin and nftrocellutose may be used Wh&tguarS*. State has:js: may be r placed with gtwt*e thiocyan* a qssrana i6,
Claims (4)
- CLAIMS1. A pyrotechnic device comprising a composition comprising metaldehyde and/or hexamethylenetetramine and/or an oxime, and a material which produces sparks during combustion, wherein the composition is consolidated to form a tablet, the tablet being mounted on a base surface on edge.
- 2. A pyrotechnic device according to claim 1, wherein the base surface is a flat surface.
- 3. A pyrotechnic device according to claim 1 or 2, wherein the base surface contains a groove or indentation, or a pattern of raised regions or one or more spigots to receive and retain the tablet.
- 4. A pyrotechnic device according to any of claims 1 to 3, wherein the tablet is affixed to the base surface by an adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1312567.9A GB2502459B (en) | 2009-08-14 | 2009-08-14 | Composition and pyrotechnic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1312567.9A GB2502459B (en) | 2009-08-14 | 2009-08-14 | Composition and pyrotechnic device |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB201312567D0 GB201312567D0 (en) | 2013-08-28 |
| GB2502459A true GB2502459A (en) | 2013-11-27 |
| GB2502459B GB2502459B (en) | 2014-03-12 |
Family
ID=49081233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1312567.9A Active GB2502459B (en) | 2009-08-14 | 2009-08-14 | Composition and pyrotechnic device |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2502459B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2563248A (en) * | 2017-06-07 | 2018-12-12 | Mtfx Ltd | Visual effect device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2153809A (en) * | 1984-01-26 | 1985-08-29 | Weber Hermann Pyro Chemie | Pyrotechnic composition for the production of flashes of light |
-
2009
- 2009-08-14 GB GB1312567.9A patent/GB2502459B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2153809A (en) * | 1984-01-26 | 1985-08-29 | Weber Hermann Pyro Chemie | Pyrotechnic composition for the production of flashes of light |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2563248A (en) * | 2017-06-07 | 2018-12-12 | Mtfx Ltd | Visual effect device |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2502459B (en) | 2014-03-12 |
| GB201312567D0 (en) | 2013-08-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB2502460A (en) | Pyrotechnic composition with spark producing material | |
| CN101633592A (en) | Formula of firecracker | |
| CN102910995A (en) | Sparkle beads producing cardamon green firework effect, and manufacturing method thereof | |
| GB0607932D0 (en) | Paste for forming an interconnect and interconnect formed from the paste | |
| US8366847B2 (en) | Perchlorate-free yellow signal flare composition | |
| CN101386558A (en) | Fireworks spraying pyrotechnic compound composition with composite effect | |
| EP1711608A4 (en) | Differentiation regulating agent containing gene which regulating differentiation from stem cells into natural killer cells as effective ingredient | |
| MX2009003914A (en) | Magnesium butylisophthalate as a porous metal organic framework material. | |
| PL2145028T3 (en) | Amalgam spheres for energy-saving lamps and the manufacture thereof | |
| CN102424516A (en) | Desensitizing agent for reducing mechanical sensitivity of pyrotechnic composition | |
| GB2502459A (en) | Pyrotechnic device consolidated to form a tablet | |
| CN101054329B (en) | Process for producing safety color-light firecracker and fireworks | |
| CN106316726A (en) | Novel safe and environmentally-friendly firecracker lead agent | |
| RU2466119C1 (en) | Pyrotechnic composition for red signalling light | |
| CN104860787A (en) | Safe and environment-friendly slight-smoke colored spraying fireworks | |
| WO2016206211A1 (en) | Carbon plate and manufacturing process therefor | |
| CN102249827A (en) | Novel colored and fragrant firecracker | |
| WO2008123581A1 (en) | Process for producing multinary nitride or oxynitride fluorescent material by combustion synthesis and multinary nitride or oxynitride fluorescent material | |
| CN106927985A (en) | A kind of Pyrotechnic composition | |
| CN1598474A (en) | Flash star for mfg. fireworks | |
| CN1970513A (en) | Safe firework explosive | |
| UA16853U (en) | A pyrotechnic compound of red fire | |
| CN104147725A (en) | Modified material for cartridge case of fire extinguishing bomb | |
| CN103776314A (en) | Safety colorful-light fragrant flower firecracker adopting maple leaves, plum blossoms and roses | |
| US1617996A (en) | Flame-coloring agent |