EP0002466B1 - Process for improving the pressure dependence of the combustion of solid-grains or firearms propellants, and their application as components of solid-grains or firearms propellants - Google Patents
Process for improving the pressure dependence of the combustion of solid-grains or firearms propellants, and their application as components of solid-grains or firearms propellants Download PDFInfo
- Publication number
- EP0002466B1 EP0002466B1 EP78101480A EP78101480A EP0002466B1 EP 0002466 B1 EP0002466 B1 EP 0002466B1 EP 78101480 A EP78101480 A EP 78101480A EP 78101480 A EP78101480 A EP 78101480A EP 0002466 B1 EP0002466 B1 EP 0002466B1
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- EP
- European Patent Office
- Prior art keywords
- solid
- propellants
- firearms
- grains
- components
- 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.)
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Classifications
-
- 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
- C06B21/0083—Treatment of solid structures, e.g. for coating or impregnating with a modifier
-
- 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
- C06B21/0008—Compounding the ingredient
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B45/00—Compositions or products which are defined by structure or arrangement of component of product
- C06B45/18—Compositions or products which are defined by structure or arrangement of component of product comprising a coated component
- C06B45/20—Compositions or products which are defined by structure or arrangement of component of product comprising a coated component the component base containing an organic explosive or an organic thermic component
Definitions
- the invention relates to a method according to the preamble of claim 1, wherein burn-off modifiers are to be used more effectively than corresponds to the current state of the art, and the use of these as a burn-off rate regulating component of gas-generating systems, in particular for solid fuels (AGVs) and pyrotechnic compositions.
- FTS components can be solid monomeric or polymeric nitro or nitrate compounds, e.g. Polyvinyl nitrate or preferably nitrocellulose (NC).
- NC is a key ingredient in many rocket propellants, gun propellants, gas generator propellants and pyrotechnic propellants.
- double-based solid fuels DB-FTS
- nitroglycerin plasticizers and stabilizers are further components.
- composite double-base solid fuels CDB-FTS
- CDB-FTS also contain binder components such as Polyurethanes or Poybutadienes and inorganic or organic oxidizers such as e.g. Ammonium perchlorate or hexogen.
- CDB-FTS NC is often incorporated in the form of fluid balls or basegrain powder. Gas generators, gun propellants and pyrotechnic kits often have analog compositions.
- Fluid balls are spherical granules of small grain size and “base grain powder” is a cylindrical granulate.
- the burning rate of such systems increases monotonously with increasing pressure.
- the reduction (plateau effect) or the interruption (mesa effect) of this monotonous increase is desirable for internal ballistic and security reasons.
- a plateau or mesa effect can be achieved by using burn-up modifiers with a weight fraction of up to about 5%. So far, this has been achieved for DB-AGVs and systems of corresponding composition by kneading the components including burn-off modifiers and processing them into fuels using the known processes; however, this can only be achieved with complex processes, which cannot guarantee the required reproducibility.
- the invention has for its object to find a method which ensures an even more effective modification of nitrocellulose-containing solid fuels and similar systems while at the same time achieving the necessary reproducibility.
- the blowing agent on which the metals or metal compounds are deposited is not in the form of an agglomerate.
- Various chemical compounds containing the burn-modifying metal can be used to generate precipitation. If one has the choice, the chemical compound which has the smaller solubility product is generally preferred because experience has shown that this can increase the fine particle size of the precipitate; like this e.g. is well known in the precipitation of barium as barium sulfate, although it is undesirable for analytical purposes.
- burn-regulating metals can also be deposited on the polymeric, nitrogen-containing components. From colloidal solutions of fire-regulating metals, e.g. Copper or tin, the corresponding metals can be deposited in elementary amounts on the nitro or nitrate components according to the claimed process.
- Another way of increasing the fineness of the burn-up modifiers is to select compounds of the burn-off-modifying metal whose peculiarity is to form particularly voluminous precipitates. This voluminous low Thanks to their large volume, blows are very suitable for an even and fine distribution on the fiber.
- this compound is deposited in statu nascendi as fine as possible under suitable precipitation conditions.
- Another variant of the method of distributing the burnup modifiers in the finest possible form on NC or other AGVS components is the possibility of physical precipitation.
- This is the method of choice in the case of combustion modifier compounds which are readily soluble in water or other common solvents.
- the AGV component, on which the burn-up modifier compounds are to be deposited is dispersed in undissolved state in water or another medium with low heat of vaporization by vigorous stirring and the burn-off modifier compound is dissolved therein.
- the fine-particle precipitation of the burnup modifier on the AGV component is then achieved by causing the solvent to evaporate or evaporate, if appropriate under vacuum.
- a further process variant would be to achieve a finely divided precipitation of the burnup modifiers by precipitation from colloidal solutions or emulsions of the modifiers.
- hexogen, octogen, polynitroethylene, polyvinyl nitrate, etc. can be used as other monomeric or polymeric nitro or nitrate compounds.
- Whether one and the same substance has a fuel or explosive property depends primarily on the type of ignition.
- the best-known example in this context is a nitroglycerin-nitrocellulose mixture which, when lit, behaves like a double-base solid fuel or, ignited with a detonator, behaves like explosive gelatin. Nitropenta would be another example.
- the modifier in the form of copper (I) and copper (II) sulfide is precipitated colloidally by introducing hydrogen sulfide from a neutral aqueous solution of 240 g of copper (II) acetate hydrate.
- the colloidally dissolved copper sulfides are deposited in the finest possible form on the NC by boiling.
- Example 1 Except that the precipitation of finely divided basic copper acetates on NC by evaporating the solvent water under vacuum at temperatures up to 50 ° C from a solution of 55 g of copper (11) acetate hydrate in 6 l of distilled water, with of which the 1,200 g nitrocellulose had been moistened uniformly.
- DB-FTS which were produced with NC treated according to the invention, clearly showed the intended effect of a modified dependence of the burning rate on pressure to an extent that could not be achieved with the conventional addition of finely ground modifier salts.
- finely ground modifier salts of the same percentage were incorporated in a convergent manner by kneading and rolling.
Description
Gegenstand der Erfindung ist ein Verfahren gemäß dem Oberbegriff des Anspruchs 1, wobei Abbrandmodifikatoren wirkungsvoller eingesetzt werden sollen, als dem gegenwärtigen Stand der Technik entspricht, und die Verwendung dieser als abbrandgeschwindigkeitsregulierender Bestandteil von gaserzeugenden Systemen insbesondere für Festtreibstoffe (FTS) und pyrotechnische Sätze. Solche FTS-Komponenten können feste monomere oder polymere Nitro- oder Nitratverbindungen sein, wie z.B. Polyvinylnitrat oder vorzugsweise Nitrocellulose (NC).The invention relates to a method according to the preamble of claim 1, wherein burn-off modifiers are to be used more effectively than corresponds to the current state of the art, and the use of these as a burn-off rate regulating component of gas-generating systems, in particular for solid fuels (AGVs) and pyrotechnic compositions. Such FTS components can be solid monomeric or polymeric nitro or nitrate compounds, e.g. Polyvinyl nitrate or preferably nitrocellulose (NC).
NC ist ein Hauptbestandteil vieler Raketenfesttreibstoffe, Rohrwaffentreibmittel, Gasgenerator-Festtreibstoffe und pyrotechnischer Sätze. In doppelbasigen Festtreibstoffen (DB-FTS) sind Nitroglyzerin, Weichmacher und Stabilisatoren weitere Bestandteile. Dazu kommen bei Composit-Doublebase-Festtreibstoffen (CDB-FTS) noch Binderanteile wie z.B. Polyurethane oder Poybutadiene und anorganische bzw. organische Oxidatoren wie z.B. Ammoniumperchlorat bzw. Hexogen. In CDB-FTS ist NC häufig in Form von Fluidballs oder Basegrain Powder eingearbeitet. Gasgeneratoren, Rohrwaffentreibmittel und pyrotechnische Sätze haben oft analoge Zusammensetzungen.NC is a key ingredient in many rocket propellants, gun propellants, gas generator propellants and pyrotechnic propellants. In double-based solid fuels (DB-FTS), nitroglycerin, plasticizers and stabilizers are further components. In addition, composite double-base solid fuels (CDB-FTS) also contain binder components such as Polyurethanes or Poybutadienes and inorganic or organic oxidizers such as e.g. Ammonium perchlorate or hexogen. In CDB-FTS NC is often incorporated in the form of fluid balls or basegrain powder. Gas generators, gun propellants and pyrotechnic kits often have analog compositions.
Unter "fluid balls" versteht man kugelförmiges Granulat kleiner Korngröße und "base grain powder" ist ein zylinderförmiges Granulat."Fluid balls" are spherical granules of small grain size and "base grain powder" is a cylindrical granulate.
Die Abbrandgeschwindigkeit solcher Systeme steigt mit zunehmendem Druck monoton an. Die Verringerung (Plateaueffekt) bzw. die Unterbrechung (Mesaeffekt) dieses monotonen Anstiegs ist aus innenballistischen und sicherheitstechnischen Gründen wünschenswert.The burning rate of such systems increases monotonously with increasing pressure. The reduction (plateau effect) or the interruption (mesa effect) of this monotonous increase is desirable for internal ballistic and security reasons.
Plateau- bzw. Mesaeffekt kann durch die Verwendung von Abbrandmodifikatoren mit einem Gewichtsanteil bis zu etwa 5% erzielt werden. Bisher wird dies für DB-FTS und Systeme entsprechender Zusammensetzung zwar erreicht, indem die Komponenten einschließlich Abbrandmodifikatoren geknetet und nach den bekannten Verfahren zu Treibstoffen weiterverarbeitet werden; jedoch gelingt dies nur mit aufwendigen Verfahren, die aber die erforderliche Reproduzierbarkeit nicht gewährleisten können.A plateau or mesa effect can be achieved by using burn-up modifiers with a weight fraction of up to about 5%. So far, this has been achieved for DB-AGVs and systems of corresponding composition by kneading the components including burn-off modifiers and processing them into fuels using the known processes; however, this can only be achieved with complex processes, which cannot guarantee the required reproducibility.
Aus der US-A 31 40 659 ist es zwar bekannt, das Halbfabrikat Treibstoffgranulat durch Eintauchplattierung mit einem zusammenhängen-. den Metallüberzug zu versehen. Dies soll jedoch das Produkt mechanisch verstärken und gegen Feuchtigkeit schützen, deshalb soll der Metallüberzug auch zusammenhängend sein. Aus der US-A 30 09 796 ist es andererseits bekannt, Metalle bzw. Metallverbindungen gleichmäßig in der Treibstoff-Matrix zu verteilen, um niedrige Druck- bzw. Temperaturexponenten zu erzielen.From US-A 31 40 659 it is known to associate the semi-finished fuel granules with a plating by immersion plating. to provide the metal coating. However, this should mechanically strengthen the product and protect it against moisture, which is why the metal coating should also be coherent. On the other hand, it is known from US-A 30 09 796 to evenly distribute metals or metal compounds in the fuel matrix in order to achieve low pressure or temperature exponents.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zu finden, das eine noch wirkungsvollere Modifizierung von nitrocellulosehaltigen Festtreibstoffen und ähnlichen Systemen bei gleichzeitiger Erzielung der notwendigen Reproduzierbarkeit gewährleistet.The invention has for its object to find a method which ensures an even more effective modification of nitrocellulose-containing solid fuels and similar systems while at the same time achieving the necessary reproducibility.
Die Aufgabe, eine noch wirkungsvollere Modifizierung von nitrocellulosehaltigen Festtreibstoffen und ähnlichen Systemen bei gleichzeitiger Erzielung der erforderlichen Reproduzierbarkeit zu gewährleisten, wird erfindungsgemäß dadurch erreicht, daß das Treibmittel in einer Flüssigkeit homogen verteilt wird, dann die Metalle oder Metallverbindungen durch chemische oder physikalische Ausfällung auf der Nitrocellulose bzw. den anderen festen monomeren oder polymeren Nitro- oder Nitratverbindungen niedergeschlagen werden und danach die weitere Verarbeitung erfolgt. Der dadurch erzielte Fortschritt besteht darin, daß die Abbrandmodifikatoren nicht zufällig oder gleichmäßig wie nach der US-A 30 09 796 in der Treibstoffmatrix verteilt werden, sondern direkt zu den Komponenten in engen Kontakt gebracht werden, mit welchen zusammen sie den gewünschten Effekt hervorbringen. Im Gegensatz zu dem in US-A 3 140 659 beschriebenen Verfahren, liegt beim erfindungsgemäßen Verfahren das Treibmittel, auf dem die Metalle oder Metallverbindungen niedergeschlagen werden, nicht in Form eines Agglomerats vor. Zur Niederschlagserzeugung kommen grundsätzlich verschiedene chemische Verbindungen, welche das abbrandmodifizierende Metall enthalten, in Frage. Hat man die Wahl, ist die chemische Verbindung, welche das kleinere Löslichkeitsprodukt aufweist, im allgemeinen zu bevorzugen, weil dadurch erfahrungsgemäß die Feinteiligkeit des Niederschlags erhöht werden kann; wie dies z.B. bei der Fällung von Barium als Bariumsulfat allgemein bekannt ist, obgleich sie da für analytische Zwecke unerwünscht ist. Erfindungsgemäß können auch abbrandregelnde Metalle auf die polymeren, stickstoffhaltigen Komponenten niedergeschlagen werden. Aus kolloidalen Lösungen von abbrandregelnden Metallen, wie z.B. Kupfer oder Zinn, lassen sich die entsprechenden Metalle elementar auf den Nitro- bzw. Nitratkomponenten nach dem beanspruchten Verfahren feinteilig niederschlagen.The object of ensuring an even more effective modification of nitrocellulose-containing solid propellants and similar systems while at the same time achieving the required reproducibility is achieved according to the invention in that the propellant is homogeneously distributed in a liquid, then the metals or metal compounds by chemical or physical precipitation on the nitrocellulose or the other solid monomeric or polymeric nitro or nitrate compounds are precipitated and then the further processing takes place. The progress achieved thereby is that the combustion modifiers are not randomly or evenly distributed in the fuel matrix as in US Pat. No. 30 09 796, but are brought into close contact directly with the components with which they produce the desired effect. In contrast to the process described in US Pat. No. 3,140,659, in the process according to the invention the blowing agent on which the metals or metal compounds are deposited is not in the form of an agglomerate. Various chemical compounds containing the burn-modifying metal can be used to generate precipitation. If one has the choice, the chemical compound which has the smaller solubility product is generally preferred because experience has shown that this can increase the fine particle size of the precipitate; like this e.g. is well known in the precipitation of barium as barium sulfate, although it is undesirable for analytical purposes. According to the invention, burn-regulating metals can also be deposited on the polymeric, nitrogen-containing components. From colloidal solutions of fire-regulating metals, e.g. Copper or tin, the corresponding metals can be deposited in elementary amounts on the nitro or nitrate components according to the claimed process.
Eine weitere Möglichkeit, die Feinteiligkeit der Abbrandmodifikatoren zu erhöhen, besteht darin, daß man Verbindungen des abbrandmodifizierenden Metalls auswählt, deren Eigenart es ist, besonders voluminöse Niederschläge zu bilden. Diese voluminösen Niederschläge eignen sich dank ihres großen Volumens sehr gut für eine gleichmäßige und feine Verteilung auf der Faser.Another way of increasing the fineness of the burn-up modifiers is to select compounds of the burn-off-modifying metal whose peculiarity is to form particularly voluminous precipitates. This voluminous low Thanks to their large volume, blows are very suitable for an even and fine distribution on the fiber.
Sodann wird diese Verbindung unter Ausnutzung des kleinen Löslichkeitsprodukts aus einer Lösung auf der zu modifizierenden Treibstoffkomponente in statu nascendi unter geeigneten Fällungsbedingungen möglichst feinteilig niedergeschlagen.Then, using the small solubility product from a solution on the fuel component to be modified, this compound is deposited in statu nascendi as fine as possible under suitable precipitation conditions.
Eine andere Variante des Verfahrens, die Abbrandmodifikatoren in möglichst feinteiliger Form auf NC bzw. anderen FTS-Komponenten zu verteilen, besteht in der Möglichkeit der physikalischen Ausfällung. Dies ist die Methode der Wahl im Falle von Abbrandmodifikatorverbindungen, welche in Wasser oder anderen üblichen Lösungsmitteln gut löslich sind. In diesem Fall wird die FTS-Komponente, auf der die Abbrandmodifikatorverbindungen niedergeschlagen werden soll, in ungelöstem Zustand in Wasser oder einem anderen Medium mit niedriger Verdampfungswärme durch kräftige Rührung fein verteilt und die Abbrandmodifikatorverbindung darin gelöst. Der feinteilige Niederschlag des Abbrandmodifikators auf der FTS-Komponente wird sodann dadurch erreicht, daß das Lösungsmittel zur Verdampfung oder Verdunstung, gegebenenfalls unter Vakuum, gebracht wird.Another variant of the method of distributing the burnup modifiers in the finest possible form on NC or other AGVS components is the possibility of physical precipitation. This is the method of choice in the case of combustion modifier compounds which are readily soluble in water or other common solvents. In this case, the AGV component, on which the burn-up modifier compounds are to be deposited, is dispersed in undissolved state in water or another medium with low heat of vaporization by vigorous stirring and the burn-off modifier compound is dissolved therein. The fine-particle precipitation of the burnup modifier on the AGV component is then achieved by causing the solvent to evaporate or evaporate, if appropriate under vacuum.
Eine weitere Verfahrensvariante wäre die Erzielung eines feinteiligen Niederschlags der Abbrandmodifikatoren durch Ausfällung aus kolloidalen Lösungen oder Emulsionen der Modifikatoren. Als andere monomere oder polymere Nitro- oder Nitratverbindungen können erfindungsgemäß Hexogen, Octogen, Polynitroäthylen, Polyvinylnitrat usw. verwendet werden. Ob ein und derselbe Stoff Treibstoff-oder Sprengstoffeigenschaft aufweist, ist in erster Linie von der Art der Zündung abhängig. Als bekanntestes Beispiel sei in diesem Zusammenhang ein Nitroglycerin- Nitrocellulose-Gemisch erwähnt, das, angezündet, sich wie ein Doublebase-Festtreibstoff oder, mit einer Sprengkapsel gezündet, wie Sprenggelatine verhält. Nitropenta wäre ein weiteres Beispiel.A further process variant would be to achieve a finely divided precipitation of the burnup modifiers by precipitation from colloidal solutions or emulsions of the modifiers. According to the invention, hexogen, octogen, polynitroethylene, polyvinyl nitrate, etc. can be used as other monomeric or polymeric nitro or nitrate compounds. Whether one and the same substance has a fuel or explosive property depends primarily on the type of ignition. The best-known example in this context is a nitroglycerin-nitrocellulose mixture which, when lit, behaves like a double-base solid fuel or, ignited with a detonator, behaves like explosive gelatin. Nitropenta would be another example.
1 200 g NC, gleichviel welchen N-Gehaltes, jedoch mit möglichst großer spezifischer Oberfläche werden durch kräftige Rührung in 35 1 Wasser gleichmäßig verteilt, 100 bis 1 000 g Kupferacetat-Hydrat darin aufgelöst, so daß durch langsame Zugabe von 1-normaler Natronlauge bei gleichzeitiger Rührung soviel Kupferhydroxid feinteilig allmählich auf der NC-Faser niedergeschlagen wird, daß nach Trocknung der erwünschte Kupfergehalt von 1 bis 5% erreicht wird. Hierbei ist es von besonderer Wichtigkeit, daß kein Uberschuß an Natronlauge angewandt und die so behandelte NC gut ausgewaschen wird, da überschüssige Natronlauge zur Bildung löslicher Cuprate führen könnte.1,200 g of NC, whatever the N content, but with as large a specific surface as possible, are evenly distributed by vigorous stirring in 35 l of water, and 100 to 1,000 g of copper acetate hydrate are dissolved therein, so that by slowly adding 1-normal sodium hydroxide solution simultaneous stirring, so much copper hydroxide is gradually deposited on the NC fiber that after drying the desired copper content of 1 to 5% is reached. It is particularly important that no excess sodium hydroxide solution is used and that the NC treated in this way is washed out well, since excess sodium hydroxide solution could lead to the formation of soluble cuprates.
Wie Beispiel 1, jedoch unter Verwendung von 390 g Blei (11)-acetate-3-hydrat.As example 1, but using 390 g of lead (11) -acetate-3-hydrate.
Wie Beispiel 1, nur daß der Modifikator in Form von Kupfer (I)- und Kupfer (II)-Sulfid durch Einleiten von Schwefelwasserstoff aus neutraler wässriger Lösung von 240 g Kupfer (II)-acetat-hydrat kolloidal ausgefällt wird. Durch Kochen werden die kolloidal gelösten Kupfersulfide in feinstmöglicher Form auf der NC niedergeschlagen.As example 1, except that the modifier in the form of copper (I) and copper (II) sulfide is precipitated colloidally by introducing hydrogen sulfide from a neutral aqueous solution of 240 g of copper (II) acetate hydrate. The colloidally dissolved copper sulfides are deposited in the finest possible form on the NC by boiling.
Wie Beispiel 3, jedoch unter Verwendung von 450 g Blei (11)-acetat-3-hydrat.As example 3, but using 450 g of lead (11) acetate 3-hydrate.
Wie Beispiel 1, nur daß die Niederschlagsbildung von fein verteilten basischen Kupferacetaten auf NC durch Verdampfen des Lösungsmittels Wasser unter Vakuum bei Temperaturren bis zu 50°C aus einere Lösung von 55 g Kupfer (11)-acetat-hydrat in 6 1 destilliertem Wasser, mit der die 1 200 g Nitrocellulose gleichmäßig durchfeuchtet worden waren, erreicht wird.As Example 1, except that the precipitation of finely divided basic copper acetates on NC by evaporating the solvent water under vacuum at temperatures up to 50 ° C from a solution of 55 g of copper (11) acetate hydrate in 6 l of distilled water, with of which the 1,200 g nitrocellulose had been moistened uniformly.
DB-FTS, die mit erfindungsgemäß behandelter NC hergestellt wurden, zeigten eindeutig den beabsichtigten Effekt einer modifizierten Abhängigkeit der Abbrandgeschwindigkeit von Druck in einem Ausmaß, wie sie bei herkömmlichem Zusatz feingemahlener Modifikatorsalze nicht erreichbar war. Darüberhinaus konnte ein signifikanter Anstieg der Explosionswärme gegenüber DB-FTS verzeichnet werden, in welche feingemahlene Modifikatorsalze gleichen Prozentsatzes in konvertioneller Weise durch Kneten und Walzen eingearbeitet wurde. Weitere Eigenschaften, wie chemische Stabilität und mechanische Festigkeit, bewegten sich in einem für DB-FTS üblichen Rahmen.DB-FTS, which were produced with NC treated according to the invention, clearly showed the intended effect of a modified dependence of the burning rate on pressure to an extent that could not be achieved with the conventional addition of finely ground modifier salts. In addition, there was a significant increase in the heat of explosion compared to DB-FTS, in which finely ground modifier salts of the same percentage were incorporated in a convergent manner by kneading and rolling. Other properties, such as chemical stability and mechanical strength, were within the usual range for DB-FTS.
Claims (3)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2754855A DE2754855C2 (en) | 1977-12-09 | 1977-12-09 | Process for improving the pressure dependency of the combustion behavior of solid propellants or gun propellants and use of the propellants produced by the process |
| DE2754855 | 1977-12-09 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0002466A2 EP0002466A2 (en) | 1979-06-27 |
| EP0002466A3 EP0002466A3 (en) | 1979-08-08 |
| EP0002466B1 true EP0002466B1 (en) | 1981-06-17 |
Family
ID=6025687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP78101480A Expired EP0002466B1 (en) | 1977-12-09 | 1978-11-30 | Process for improving the pressure dependence of the combustion of solid-grains or firearms propellants, and their application as components of solid-grains or firearms propellants |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0002466B1 (en) |
| DE (2) | DE2754855C2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4608102A (en) * | 1984-11-14 | 1986-08-26 | Omark Industries, Inc. | Primer composition |
| DE3809177C1 (en) * | 1988-03-18 | 1989-06-22 | Buck Chemisch-Technische Werke Gmbh & Co, 7347 Bad Ueberkingen, De | |
| RU2451650C1 (en) * | 2010-12-20 | 2012-05-27 | Федеральное государственное унитарное предприятие "Научно-исследовательский институт полимерных материалов" | Method of octogene modification |
| RU2471757C1 (en) * | 2011-09-16 | 2013-01-10 | Открытое акционерное общество "Научно-исследовательский институт полимерных материалов" | Method of modifiying octogene |
| RU2471758C1 (en) * | 2011-12-14 | 2013-01-10 | Открытое акционерное общество "Научно-исследовательский институт полимерных материалов" | Method of modifying octogene |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3009796A (en) * | 1951-03-08 | 1961-11-21 | Ralph F Preckel | Gas-producing compositions of smokeless powder and metal compound inhibitors |
| US3140659A (en) * | 1962-04-23 | 1964-07-14 | Earl F Van Artsdalen | Metal-coated propellant granules |
| US3282737A (en) * | 1962-08-27 | 1966-11-01 | Electric Storage Battery Co | Electrodes and electrode material |
| FR1479246A (en) * | 1965-09-21 | 1967-05-05 | France Ministre Des Armees | New powder for grenade launcher cartridges |
| US3860462A (en) * | 1970-02-09 | 1975-01-14 | Us Army | Propellant composition of the nitrocellulose type containing non lead-containing ballistic modifiers |
| FR2275424A1 (en) * | 1974-06-18 | 1976-01-16 | Poudres & Explosifs Ste Nale | Polishing nitrocellolose particles - using a gummy soln. contg. suspended metal and metal cpd. particles |
-
1977
- 1977-12-09 DE DE2754855A patent/DE2754855C2/en not_active Expired
-
1978
- 1978-11-30 DE DE7878101480T patent/DE2860795D1/en not_active Expired
- 1978-11-30 EP EP78101480A patent/EP0002466B1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| EP0002466A3 (en) | 1979-08-08 |
| DE2754855C2 (en) | 1980-09-04 |
| DE2860795D1 (en) | 1981-09-24 |
| DE2754855B1 (en) | 1979-10-11 |
| DE2754855A1 (en) | 1979-06-13 |
| EP0002466A2 (en) | 1979-06-27 |
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