EP1015401A1 - Fusees eclairantes possedant des dispositifs de mise a feu constitues par des compositions extrudables de mise a feu - Google Patents

Fusees eclairantes possedant des dispositifs de mise a feu constitues par des compositions extrudables de mise a feu

Info

Publication number
EP1015401A1
EP1015401A1 EP98936941A EP98936941A EP1015401A1 EP 1015401 A1 EP1015401 A1 EP 1015401A1 EP 98936941 A EP98936941 A EP 98936941A EP 98936941 A EP98936941 A EP 98936941A EP 1015401 A1 EP1015401 A1 EP 1015401A1
Authority
EP
European Patent Office
Prior art keywords
igniter
fibers
flare
extruded
oxidizer
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
Application number
EP98936941A
Other languages
German (de)
English (en)
Other versions
EP1015401B1 (fr
Inventor
Daniel B. Nielson
Gary K. Lund
Reed J. Blau
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Northrop Grumman Innovation Systems LLC
Original Assignee
Cordant Technologies Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US09/119,518 external-priority patent/US6170399B1/en
Application filed by Cordant Technologies Inc filed Critical Cordant Technologies Inc
Publication of EP1015401A1 publication Critical patent/EP1015401A1/fr
Application granted granted Critical
Publication of EP1015401B1 publication Critical patent/EP1015401B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
    • C06C5/00—Fuses, e.g. fuse cords
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
    • C06C9/00—Chemical contact igniters; Chemical lighters
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
    • C06C15/00—Pyrophoric compositions; Flints

Definitions

  • the present invention relates to extrudable igniter compositions, and extruded ignition sticks therefrom, in combination with flares or other solid propellant devices, such as rockets or the like.
  • Igniter compositions ought to satisfy a number of design criteria.
  • the igniter composition, when formed, should be sufficiently robust to remain in operable form prior to deployment of the device to be ignited, such as a flare or other device.
  • One of the commonly proposed igniter systems uses solid particles consisting of B/KNO 3 which, when ignited, initiate combustion of the specified gas generant composition.
  • the present invention offers flares, solid propellant rockets, decoy devices and the like incorporating one or more of the herein disclosed igniter sticks.
  • the extrudable igniter is readily manufactured at low cost to obtain a physically robust product.
  • the igniter can be manufactured without the use of a thermoplastic melt or hot-melt mixing equipment, and thus avoids the potential hazards associated with processing at such elevated temperatures.
  • the extrudable igniter composition from which the igniter stick can be formed is suitably processed at ambient temperatures into robust products which have sufficiently relatively selectable ignition characteristics.
  • the igniter stick can have other configurations, provided the configuration is consistent with the objectives herein disclosed.
  • the extrudable igniter composition can be used to form a solid or hollow igniter "stick" capable of igniting a flare or propellant composition in a flare or other pyrotechnic device.
  • BRIEF DESCRIPTION OF THE DRAWING Figure 1 illustrates an exemplary flare device (a XM212 type flare) in longitudinal cross-section which includes an igniter stick formed from the extrudable igniter composition.
  • Figures 2, 3, 4 and 5 illustrate diameter cross-sectional views of flares provided with igniter sticks fabricated from the disclosed extrudable igniter composition.
  • the extruded igniter sticks can be characterized as having a configuration designed for rapid deflagration at a high temperature upon ignition. Upon ignition an igniter stick is capable of igniting another pyrotechnic composition.
  • the igniter sticks are sized to be capable of complete end to end ignition, e.g., complete flame transition, in a short time, such as less than 10 miiiseconds.
  • the igniter compositions which are capable of being extruded are characterized as being obtainable from a combination of a binder, water-soluble or dispersable oxidizing agent, water-soluble or dispersable fuel, and a selected amount of water.
  • the extrudable compositions are essentially compositionally homogeneous.
  • the binder is, by present preference, a water-soluble binder, although water-swellable binder materials are not excluded provided that the remaining solid constituents of the igniter are at least substantially sufficiently homogeneously distributable therein.
  • Typical binders used in the present igniter composition include, by way of example, water-soluble binders such as poly-N-vinyl pyrolidone, polyvinyl alcohols and coplymers thereof, polyacrylamide, sodium polyacrylates, copolymers based on acrylamide or sodium acrylate, gums, and gelatin. These water soluble binders include naturally occurring gums, such as guar gum, acacia gum, modified celluloses and starches. A detailed discussion of "gums" is provided by C.L.
  • water-soluble binders improve mechanical properties or provide enhanced crush strength.
  • water immiscible binders can be used in the present invention, it is currently preferred to use water soluble binders in combination with fuels and/or oxidizers suitable for use in formulating an igniter.
  • the suitable fuels and oxidizers can be water soluble or water insoluble.
  • Suitable fuels and oxidizers can be inorganic or organic.
  • the binder concentration is such that a sufficiently mechanically robust extrudate is obtained.
  • the extrudate such as an igniter stick, should be capable of retaining its shape, e.g. maintaining its integrity, prior to ignition.
  • the extruded igniter stick is capable of being received (inserted) in a pyrotechnic composition, e.g. a suitably configured bore (e.g. central bore) in a propellant composition, and of shattering or fracturing when ignited.
  • the binder can be in a range of, for example, of about 2 % by weight to about 10 % by weight, and more particularly about 3% by weight to about 7% by weight, relative to the dry ingredients in the formulation.
  • the binder can be comprised of more than one binder material.
  • the igniter composition includes at least one oxidizer, which is preferably water soluble or at least water dispersable.
  • the oxidizer can therefore be organic or inorganic, although inorganic oxidizers are presently preferred.
  • Organic oxidizers which are dispersable in a binder so that a sufficiently homogeneous igniter composition is obtainable include amine nitrate salts, nitro compounds, nitramine, nitrate esters, and amine perchlorates, of which methyl ammonium nitrate, methyl ammonium perchlorate are are exemplary.
  • Other canditates include RDX and HMX, CL-20 and PETN.
  • Inorganic oxidizers include oxidizing ionic species such as nitrates, nitrites, chlorates, perchlorates, peroxides, and superoxides.
  • oxidizing ionic species such as nitrates, nitrites, chlorates, perchlorates, peroxides, and superoxides.
  • metal nitrates such as potassium nitrate or strontium nitrate, ammonium nitrate, metal perchlorates such as potassium perchlorate, and metal peroxides such as strontium peroxide.
  • the oxidizer is ordinarily present in an amount effective to ensure oxidation of at least the fuel in the igniter and can be in a range of, for example, of about 40% by weight to about 90% by weight, and more particularly about 70% by weight to about 85% by weight, relative to the dry ingredients in the formulation.
  • the igniter composition can be formulated with an additional fuel, assuming that the binder may be capable of functioning as a secondary, not primary, fuel for the igniter composition.
  • additional fuels include powdered metals, such as powdered aluminum, zirconium, magnesium and/or titanium, among others; metal hydrides such as zirconium or titanium hydride; and so-called metalloids, such as silicon and boron which are capable of being sufficiently "dispersable" in the binder.
  • Water-soluble or water- dispersable fuels include, e.g., guanidine nitrate, cyano compounds, nitramines (RDX and/or HMX), CL-20, tetranitrocarbazoles, organic nitro compounds, and may, if desired, be "multi-modal" in particle size distribution. Water dispersable materials can be added in substantially even particle size distribution or in multi-modal distributions depending on the ignition characteristics desired.
  • Water dispersable fuels are, by present preference, used in fine paniculate form, such as powder or ground to sufficient fine particles, to ensure adequate distribution during the manufacturing process.
  • fine paniculate form such as powder or ground to sufficient fine particles, to ensure adequate distribution during the manufacturing process.
  • an at least substantially even distribution in the resultant extrudable igniter composition is desired.
  • the fuel is in pulverulent form, such as 100 ⁇ or less, such as, for example, from about 1 ⁇ to 30 ⁇ .
  • Metals in powder form may have, if desired, a smaller particle size range, such as from about 1 to 20 ⁇ , or even smaller such as 1 to about 5 ⁇ .
  • the amount of fuel - other than the binder - can be in a range of, for example, of about 5 to about 30% by weight, and more particularly about 10% by weight to about 20% by weight, relative to the dry ingredients in the formulation.
  • the present igniter sticks can incorporate, if desired, a reinforcement. Suitable reinforcement can be achieved with fibers, such as combustible fibers, which serve to both strengthen the extruded igniter stick, and, upon appropriate selection of the reinforcement, can improve ingiter performance.
  • the present igniter sticks and related grains can incorporate, if desired, a reinforcement.
  • Suitable reinforcement can be achieved with fibers, such as combustible fibers, which can serve to both strengthen the extruded igniter stick, and, upon appropriate selection of the reinforcement, improve igniter performance.
  • the fibers are preferably generally shorter in length (low aspect ratio).
  • Fibers incorporated into extrudable igniter formulations include, for instance, polyolefin fibers, polyamide fibers, polyester fibers and poly (2,2-(m-phenylene)-5,5- bisbenzimidazole (“PBI”) fibers.
  • Polyolefin fibers include polyethylene
  • PE fibers such as PE fibers having an outer diameter of about
  • Suitable polyamide fibers such as Nylon 6 fibers, can have a suitably selected diameter, such as 19 microns, and a length of 1.5 mm to about 6.4 mm.
  • Suitable polyester fibers include high tenacity polyester fibers having lengths of about 1.5 mm to about 6.4 mm, and a suitable diameter of about 25 microns.
  • PBI fibers include those having lengths on the order of 0.8 mm to 3.2 mm. Representative reinforced igniter sticks and the formulations therefor are reported in the Examples.
  • the present composition in extrudable form is readily obtainable, for instance, by mixing binder, fuel, oxidizer and the selected amount of water for such a period of time to achieve an at least substantially even distribution of the fuel, if used, and oxidizer throughout the binder.
  • One method involves mixing a water-soluble binder and a selected amount of water to form a pre-mix, and admixing the pre-mix with (a) first the fuel and then the oxidizer, or (b) the oxidizer and then the fuel, or (c) a combination of the oxidizer and fuel.
  • the amount of water is generally such that the resultant product has a consistency which is extrudable, but, by preference, is not runny. In principle greater amounts of water can be used but some manufacturing concerns may arise, including an increase in waste water laden with varying amounts of pyrotechnic species (fuel, oxidizer etc.).
  • the igniter composition thus formed is capable of being extruded to the desired physical geometry.
  • the igniter sticks can be used in combination with solid propellant rockets or other apparatus which require ignition of solid propellant.
  • Other apparatus includes, without limitation, flares.
  • flares are those known to those skilled in the art as thrusted flares of which the MJU-10 flare is exemplary.
  • Other flares such as M-206 flares (which may or may not be spectrally matched) or a near IR flare, such as a M-278 type flare, are also suitably combined with one or more igniter sticks.
  • the suitable flares are not restricted to the aforementioned MJU-10, M-206 or M-278 flares.
  • a so-called standard 2.75 inch (cross-section diameter) flare including visible illuminating flares, are suitably provided with at least one igniter stick.
  • Non-commercial flare variants of the standard flare such as the M-257 type flare
  • the igniter stick decreases the costs, decreases the fabrication time, and simplifies the design of flares, including the ignition system for a thrusted flare such as the MJU-10 flare.
  • Igniter sticks can be used in a great number of decoy devices which include decoy flares which are deployed to defend against an incoming threats, and particularly against heat-seeking missiles.
  • the igniter stick(s) improve the reliability of flare ignition by decreasing out-of-place first fire, and the safety of manufacturing flares by eliminating the use of flammable solvents commonly used when applying traditional first fires.
  • Suitable flares and/or flare compositions for combination with at least one igniter stick are described in Encylopedia of Chemical Technology, 20:680-697 (4th ed, 1996), including the references cited therein, the complete disclosure of which is incorporated herein by reference.
  • the igniter sticks can be used with larger sized solid propellant launch vehicles, such as solid propellant rockets.
  • the igniter stick can be used as part of an ignition system, e.g., as a starter in the pyrotechnic train to propagate or initiate propagation of ignition.
  • Solid propellant rockets which can be equipped with at least one igniter stick as at least part of the ignition system include those described in Solid Rocket Proplsion Technology (Pergamon Press, 1st Edition 1993) and Rocket Propulsion Elements (Wiley Interscience, 4th Edition 1976), the complete disclosures of which are incorporated by reference.
  • the well-known Jane's Handbook describes flares and other solid propellant devices suitably used in combination with the igniter sticks.
  • Figure 1 illustrates, in cross-section, a type of flare known as a XM212 flare.
  • the casing is a suitable pressure enclosure fabricated from steel or other material capable of being used for a flare application.
  • the cartridge case 18 can have a vented housing 17.
  • One closed end is defined by the forward closure 19.
  • the opposing end of the XM212 flare includes an aft closure 12, spacers 13, an ignition system with igniter 15, protective cap 10 and a piston 11.
  • a solidified (extruded) igniter stick 16 which may be solid or hollow, extends lengthwise (completely or partially) through the propellant grain as shown in Figure 1.
  • the igniter stick can be formed by extruding the hereinabove described extrudable igniter composition, allowing the extrudate to solidify, and inserting it into the propellant grain (preferably before its cured.)
  • a selected propellant composition 14 surrounds the igniter stick.
  • a so-called rapid deflagration cord if desired, can be disposed lengthwise, e.g., such as loosely sleeved, within a hollow igniter stick.
  • more than one igniter stick can, if desired, be used.
  • FIG. 2-5 Cross-sectional "diameter" views of flare casings with propellant and igniter sticks are shown in Figures 2-5.
  • the flare case 28 can, if desired, have a foam layer 22 (e.g. a foamed nitrocellulose liner) sprayed on its interior surface before propellant 24 is loaded.
  • a center bore having a pre-selected geometry 26 sleeves a hollow igniter stick 20 (in end view such as quargum binder/B/KNO 3 ).
  • the flare case 38 has been loaded with propellant 34 and provided with a centrally positioned hollow igniter stick 36.
  • additional solid or hollow igniter sticks 32 can be provided.
  • flare case 48 is loaded with propellant 44, and a centrally positioned shaped bore of pre-selected geometry.
  • the centrally positioned bore may have an igniter stick 42 with igniter sticks 46 (in strip form) disposed radially in the slots from the bore.
  • the igniter sticks are fitted within the slots, and preferably are not loosly fitted.
  • the flare case 58 is shown loaded with propellant 54 and a centrally positioned igniter stick having multiple axial bores therein.
  • the igniter stick can, if desired, be fitted with a peelabie glove/sleeve prior to its insertion into the propellant grain. This can protect an igniter stick during the manufacturing process or during storage before use.
  • the ignitor sticks are preferably inserted into the propellant grain before the latter is cured.
  • the igniter formulation was extruded through a 12 point star die with a maximum diameter of 0.33" and a minimum diameter of 0.30".
  • the die included a central 0.080" diameter pin, thus producing a hollow rod-like configuration.
  • the extruded igniter formulation was cut into 7" lengths. Before drying, a 7.5" length of 0.07" diameter. Teledyne RDC (rapidly deflagrating cord) was inserted into the 0.08" diameter perforation.
  • the igniter sticks were dried at 165°F overnight. The igniter sticks were tested to evaluate their performance as an igniter in an inflator which was designed for passenger side automotive safety bags. The igniter sticks performed satisfactorily.
  • a series of extruded igniter stick formulations containing boron, potassium nitrate, a water-soluble binder, and optionally, fibers for reinforcement were prepared. These formulations are reported in Table I. The formulations were first mixed on a 10 g and then a 30 g scale to determine their sensitivity towards stimuli including impact, friction, electrostatic discharge, and heat (Table II). In general, carbohydrate-based binders exhibited the greatest sensitivity with respect to ABL friction. Formulations containing methyl cellulose, guar gum, and locust bean gum as the binder were also used to prepare igniter sticks.
  • the igniter formulation was extruded through a 12 point star die with a maximum diameter of 0.33" and a minimum diameter of 0.305". The die included a centrally located 0.80" diameter pin. The extruded igniter formulation was cut into 7" lengths. Before drying, a 7.5" length of 0.07" diameter. Teledyne RDC (rapidly deflagrating cord) was inserted. Ten additional 2" lengths were extruded. The igniter sticks were dried at 165 F overnight.
  • Important factors in determining useful formulation include quality of the grain after drying, actual performance as an igniter, and drying rate. Leaching of a mixture of KNO 3 and binder to the surface of the grain may occur for some formulations during drying. Leaching in the perforation is not desired. Leaching was found to be least important in formulations containing tragacanth gum, Cyanamer ® A-370 and Cyanamer ® P-21 (Table III). Igniter sticks from the formulations containing Cyanamer ® A-370 and Cyanamer® P-21 were evaluated in content with an inflator device. Relative drying rates of 10 : 1.7 : 1 were calculated for formulations containing Cyanamer ® N-300, Cyanamer ® P-21 and Cyanamer ® A- 370, respectively. Thus, the formulation containing Cyanamer ® A- 370 was shown to dry quickly, with minimal KNO3 leaching producing a grain that ignites gas generant with minimal ignition delays.
  • 'Cyanamer is a registered trademark of Cytec Industries Inc. for specialty polymers of polyacrylamide, sodium polyacrylate or copolymers thereof.
  • Units are in centimeters. Units are in pounds.
  • a series of igniters containing fibers were formulated with the goal of enhancing durability of the extruded igniter sticks as seen from Table IV. All formulations exhibited favorable safety characteristics. Samples (325 g) of each formulation were mixed in a Baker-Perkins pint mixer with 13.5 parts/100 of water. After dry blending the KNO3 and Cyanamer ® A-370 for one minute, the water was added followed by five minutes of mixing. The fiber was then added in two increments and the boron in three increments with three minutes of mixing after each addition. After a final "scrape down", the formulation was mixed for an additional ten minutes.
  • the resulting brown, dough-like material was granulated to -4 mesh and fed into a Haake 25 mm single-screw extruder.
  • the igniter formulation was extruded through a 12 point star die with a maximum diameter of 0.33" and a minimum diameter of 0.305".
  • the die included a centrally located 0.15" diameter pin.
  • the extruded igniter formulation was cut into 7" lengths. Ten additional 2" lengths were extruded. The igniter sticks were dried at 165 F overnight.
  • Example 3 ' he same as in footnote 1 but cured epoxy blocking the .15" ID perforation at the opposite end from where ignition was intiated.
  • the "fiber ID” can be characterized as carbon fiber, alumina fiber, aluminosilicate, polyethylene, and polybenzimidizole.
  • An extrudable igniter composition was obtained by forming a pre-mix of guar gum (5.0 wt%, 0.25 gram) and water (deionized 15.0 wt%, 1.75 grams); combining the pre-mix with potassium nitrate (average particle size of about 26 microns, 75 wt%, 3.75 grams); and adding thereto fuel, boron (amorphous; 20.0 wt%, 1.00 gram).
  • An extrudable igniter composition was obtained as in Example 4, but 20.0 wt% of water was used.
  • An extrudable igniter composition was prepared as in Example 4, except that the amount of fuel, boron, was increased to 22.0 wt% (1.10 grams) and the amount of binder, guar gum, was reduced to 3.0 wt% (0.15 gram).
  • An extrudable igniter composition was prepared according to the procedure of Example 4, except that the binder was polyacrylamide (cyanamer "N-300” from American Cyanamid, 5.0 wt%, 0.25 gram).
  • An extrudable igniter mixture is prepared by adding potassium nitrate (210 grams) and a polyacrylamide (14 gram; cyanamer "N- 300" from American Cyanamid) to a bowl; adding water (44.8 grams), to the bowl and mixing for 1 minute; and adding boron (amorphous; 56.0 grams) thereto followed by mixing for about four minutes.
  • An extrudable igniter composition was prepared as in Example 8, except that the amount of water is 50.4 grams, the potassium nitrate and binder are first dry-blended together before adding the water and mixing 1 minute. The powdered boron is then added and the mixing is continued for four minutes.
  • the igniter composition prepared according to Example 8 was granulated, dried and pressed into 1/2 inch diameter by 1 inch long pellets. The pellets were then inhibited on all but one face and combusted in a closed pressurized vessel at 1000, 2000 and 3000 psi via ignition of the uninhibited face. Burning rates of 4.16 ips, 4.32 ips and 4.42 ips respectively, were observed.
  • a portion of the wet igniter composition prepared as described in Example 9 was placed in a 2 in diameter ram extruder and forced through an appropriate die so as to provide a center perforated cylindrical extrudate of approx 0.3 in diameter with a perforation diameter of approx 0.06 in.
  • This extrudate was partially dried and cut into 7 in lengths prior to fiinal drying.
  • the resulting igniter sticks were then tested in a gas generating device consisting of a tubular metal cylinder approx 8 in long by approx 2 in diameter closed at both ends and provided with radial ports.
  • One of the end closures was further provided with an initiating squib.
  • the igniter stick was retained in the center of the tube and a 7 in length of rapid deflagration cord (RDC) placed in the center perforation of the stick.
  • the gas generating device was then filled with a charge of gas generant pellets and tested in a closed tank. Comparable results were obtained with the igniter stick in contrast to those obtained with a conventional ignition train in which a perforated metal tube filled with a like quantity of ignition powder and the RDC replaces the igniter stick/RDC combination. In all cases ignition of the gas generant pellets was observed to occur within 8 msec.
  • the igniter sticks were also incorporated in the main ignition system of a MJU-10 decoy flare.
  • the MJU-10 flare requires a larger igniter than the XM-212 flare. Therefore, the igniter formulation was extruded through a 12 point star die that has a 0.33 inch maximum diameter a 0.30 inch minimum diameter.
  • the extrusion die also included a 0.80 inch diameter pin used to produce a center perforated grain.
  • the extruded igniter sticks were cut to 5.0 inch lengths and then dried at 135°F for 24 hours. The igniter sticks were then inserted into the center perforation of the MJU-10 flare grain. The MJU-10 flare was successfully ignited with the igniter stick.
  • the igniter stick will decrease the cost, decrease the fabrication time, and simplify the design of an ignition system for the thrusted MJU-10 flare.
  • igniter sticks can be used in a great number of decoy flare devices. They will aid in improving the reliability of flare ignition by decreasing out-of-place first fire, and also improve the safety of manufacturing flares by eliminating the use of flammable solvents commonly used when applying traditional first fires.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Air Bags (AREA)
  • Automotive Seat Belt Assembly (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

L'invention concerne des fusées éclairantes et d'autres dispositifs à propulseur solide, tels que des fusées, équipés d'un allumeur ou d'un système de mise à feu basé en totalité ou en partie sur un bâton extrudé de mise à feu. Les constituants de ce bâton comprennent un liant soluble dans l'eau ou gonflant dans l'eau, au moins un agent oxydant, au moins un combustible et, éventuellement, des fibres.
EP98936941A 1997-09-04 1998-07-22 Methode de preparation de fusees eclairantes possedant des dispositifs de mise a feu constitues par des compositions extrudables de mise a feu Expired - Lifetime EP1015401B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US119518 1987-11-12
US5750197P 1997-09-04 1997-09-04
US57501P 1997-09-04
US09/119,518 US6170399B1 (en) 1997-08-30 1998-07-21 Flares having igniters formed from extrudable igniter compositions
PCT/US1998/015064 WO1999011587A1 (fr) 1997-09-04 1998-07-22 Fusees eclairantes possedant des dispositifs de mise a feu constitues par des compositions extrudables de mise a feu

Publications (2)

Publication Number Publication Date
EP1015401A1 true EP1015401A1 (fr) 2000-07-05
EP1015401B1 EP1015401B1 (fr) 2004-12-08

Family

ID=26736572

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98936941A Expired - Lifetime EP1015401B1 (fr) 1997-09-04 1998-07-22 Methode de preparation de fusees eclairantes possedant des dispositifs de mise a feu constitues par des compositions extrudables de mise a feu

Country Status (10)

Country Link
EP (1) EP1015401B1 (fr)
JP (1) JP4057779B2 (fr)
KR (1) KR100545187B1 (fr)
CN (1) CN100537492C (fr)
AU (1) AU750304B2 (fr)
BR (1) BR9812622A (fr)
CA (1) CA2302359C (fr)
DE (1) DE69828068T2 (fr)
IL (1) IL134859A (fr)
WO (1) WO1999011587A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7469640B2 (en) 2006-09-28 2008-12-30 Alliant Techsystems Inc. Flares including reactive foil for igniting a combustible grain thereof and methods of fabricating and igniting such flares
NO2305624T3 (fr) * 2009-10-01 2018-02-24
CN102320906B (zh) * 2011-08-16 2013-03-06 湖北三江航天江河化工科技有限公司 一种酰胺类助剂及其制备方法
US10557696B2 (en) 2016-12-01 2020-02-11 Battelle Memorial Institute Self-glowing materials and tracer ammunition
BR112019011338A2 (pt) * 2016-12-01 2019-10-15 Battelle Memorial Institute materiais de brilho próprio, munições traçantes e dispositivos de iluminação
JP7312690B2 (ja) * 2019-12-23 2023-07-21 株式会社トクヤマ 金属窒化物の製造方法、及び着火剤成形体
JP7379142B2 (ja) * 2019-12-23 2023-11-14 株式会社トクヤマ 金属窒化物の製造方法、着火剤及び着火剤成形体

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB566786A (en) * 1941-06-13 1945-01-15 Hugh Charles Hebard Improvements in or relating to fuzes for bombs, projectiles and the like
CH240427A (de) * 1943-05-28 1945-12-31 Siefvert & Fornander Ab Zündmittel.
US2416639A (en) * 1944-07-08 1947-02-25 Ensign Bickford Co Slow-burning powder composition
US3257801A (en) * 1962-07-09 1966-06-28 North American Aviation Inc Pyrotechnic composition comprising solid oxidizer, boron and aluminum additive and binder
US3338764A (en) * 1965-08-19 1967-08-29 Du Pont Flexible detonating compositions containing high explosives and polymeric metallocarboxylates
GB1231181A (fr) * 1967-05-05 1971-05-12
DE1771943C2 (de) * 1968-08-05 1975-03-27 Dynamit Nobel Ag, 5210 Troisdorf Anfeuerungssatz für Treibladungen und Raketentreibsätze
US3644602A (en) * 1968-08-05 1972-02-22 Fmc Corp Process for producing trialkyl phosphates
ZA734400B (en) * 1973-06-28 1975-02-26 African Explosives & Chem Improvements in the manufacture of safety fuse
US4220087A (en) * 1978-11-20 1980-09-02 Explosive Technology, Inc. Linear ignition fuse
DE3243425A1 (de) * 1982-11-24 1984-05-24 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München Anzuendmittel fuer treibladungen
SE460848B (sv) * 1987-09-29 1989-11-27 Bofors Ab Saett att framstaella pyrotekniska foerdroejnings- och anfyringssatser
DE9416123U1 (de) * 1994-10-06 1994-12-08 Buck Chem Tech Werke Pyrotechnische Schädlingsvernichtungsvorrichtung
US5540154A (en) * 1995-06-06 1996-07-30 Oea Aerospace, Inc. Non-pyrolizing linear ignition fuse
US5610364A (en) * 1995-06-30 1997-03-11 Thiokol Corporation Nozzle plug for plume enhancement in a kinematic flare

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9911587A1 *

Also Published As

Publication number Publication date
EP1015401B1 (fr) 2004-12-08
CA2302359C (fr) 2006-10-24
CN100537492C (zh) 2009-09-09
JP2003524743A (ja) 2003-08-19
JP4057779B2 (ja) 2008-03-05
AU8577598A (en) 1999-03-22
DE69828068D1 (de) 2005-01-13
IL134859A (en) 2004-02-08
BR9812622A (pt) 2000-08-22
WO1999011587A1 (fr) 1999-03-11
DE69828068T2 (de) 2005-04-21
KR100545187B1 (ko) 2006-01-24
CN1273572A (zh) 2000-11-15
KR20010023660A (ko) 2001-03-26
IL134859A0 (en) 2001-05-20
AU750304B2 (en) 2002-07-18
CA2302359A1 (fr) 1999-03-11

Similar Documents

Publication Publication Date Title
US6170399B1 (en) Flares having igniters formed from extrudable igniter compositions
AU733418C (en) Extrudable igniter compositions
US5084118A (en) Ignition composition for inflator gas generators
DE2946422C2 (fr)
GB2205826A (en) Porous propellant grain
US20120208134A1 (en) Devices incorporating non-lethal payloads and methods of producing a flash
WO2011090375A1 (fr) Procédé de préparation d'une composition pyrotechnique et charge associée
CA2302359C (fr) Fusees eclairantes possedant des dispositifs de mise a feu constitues par des compositions extrudables de mise a feu
US10494314B2 (en) Non-lethal payloads and methods of producing same
US4570540A (en) LOVA Type black powder propellant surrogate
MXPA00002249A (en) Flares having igniters formed from extrudable igniter compositions
USH285H (en) Oxygen rich igniter compositions
ZA200508605B (en) Energetic linear timing element
US20050072501A1 (en) Moisture-resistant black powder substitute compositions and method for making same
US5189249A (en) Gel propellant ammunition
WO2003083373A2 (fr) Materiau a allumage spontane a basse temperature
MXPA00000746A (en) Extrudable igniter compositions
EP1023249A1 (fr) Composition d'amor age
WO2018106312A2 (fr) Compositions pyrotechniques
WO1998028244A3 (fr) Composition d'amorçage sans plomb pour cartouches a percussion

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20000303

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB SE

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ALLIANT TECHSYSTEMS INC.

17Q First examination report despatched

Effective date: 20021011

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RTI1 Title (correction)

Free format text: METHOD OF FORMING FLARES HAVING IGNITERS FORMED FROM EXTRUDABLE IGNITER COMPOSITIONS

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB SE

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 69828068

Country of ref document: DE

Date of ref document: 20050113

Kind code of ref document: P

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20050909

ET Fr: translation filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20070831

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20070727

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20070727

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20070717

Year of fee payment: 10

EUG Se: european patent has lapsed
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20080722

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090203

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20090331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080722

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080723