FR2664587A1 - MATERIALS RICH IN ENERGY. - Google Patents

Abstract

An energy-rich composition containing the following constituents, in the following relative proportions: component A: 5 to 25% by weight of a polymer binder, component B: 65 to 90% by weight of a very high energy filler containing less one heteroalicyclic nitramine compound, and component C: 1 to 15% by weight of a plasticizer which contains at least one nitroaromatic compound, the weight percentages of components A, B and C reaching 100%.

Description

The present invention relates to energy-rich materials, and

  in particular -explosives with polymeric binders and weapons propellants and compositions suitable for them. Propellants for weapons have been manufactured

  for many years from compositions containing

  mixtures of nitrocellulose and nitroglycerin, and are therefore known as dual-base materials. In some cases, additional energy-rich ingredients, such as picrite, are added and the propellants are known as triple compositions In applications with a high energy content, for example for the propulsion of kinetic energy projectiles from a gun of an armored tank, constituents very rich in energy, such as nitramines, have been incorporated into dual base compositions and

triple base.

  The dual base and triple base compositions, especially intended for high energy applications, have the disadvantage of being very vulnerable to undesired ignition when subjected, under hostile conditions, to attack by a projectile rich in energy, for example a projectile having a head

with hollow charge.

  Different approaches to the problem of vulnerability have been considered for the development of composi-

  Although such systems may not be able to reduce the vulnerability, this is generally achieved at the expense of the propellant energy.

  The present invention relates to the embodiment

  energy-rich materials, insensitive and perfection-

  especially plastic-bound explosives and

  weapon-based propellant compositions in low vulnerability applications.

  According to the invention, a high energy content comprises the following constituents, in the proportions

following statements: -

  5 to 25% by weight of a polymeric binder, constituting B 65 to 90% by weight of a filler.

  very rich in energy containing at least one compound of ni-

  heteroalicyclic tramine, and constituting C: 1 to 15% by weight of a plasticizer

  which contains at least one nitroaromatic compound, the

  weight percentages of constituents A, B and C reaching%. In the compositions according to the present invention, constituent B essentially gives the possibilities of

  availability of a large amount of energy from the

  (Constituent C makes a small contribution and Constituent A can also make a contribution to

  Its constituent B gives the necessary mechanical properties on the part of the binder and the component C gives the treatment properties allowing the formation of mixtures in cooperation with the constituents.

  These mixtures are to be worked up to form a suitable paste-like material which can be compressed or extruded for forming.

  suitable products, for example propellants ,.

  The combination of these constituents is selected especially from the compositions according to the present invention at

  because of the unforeseen advantages that this composition affords, as the description which follows We found that compositions according to

  The present invention could be suitably processed for the formation of energy-rich materials, for example by use in propellants which may unexpectedly and advantageously exhibit improved properties of vulnerability without corresponding reduction in the amount of normally associated energy

to such perfection.

  For example, the propellant compositions according to the invention generally have a high ignition temperature and also have advantageous properties.

  relatively low flame temperatures for the

  of the energy involved, so that barrel erosion can be reduced, and a relatively

  slow, this last property allowing

  tagging the realization of propellants having small

  dimensions of cheeks as described in the following

  according to the present invention may therefore possess

  a combination of properties that are particularly suitable

  well to the realization of propellants in

  low vulnerability applications.

  Preferably component A forms 10 to 25% by weight, component 70 to 90% by weight and component C

  3 to 12% of the weight of the composition.

  Component C is preferably formed by

  one or more compounds that melt at a lower temperature than

  below 100 OC and it is preferably a liquid at room temperature (20 OC). Preferably, the compound

  nitrate or each nitrated compound of component C is a compound

  monocyclic nitroaromatic poses; it may be a mononitro compound but it is preferably a compound

  dinitré or trinitré or a mixture of such compounds.

  Compounds for use in Component C or Component C and which are suitable

  particularly well are dinitrobenzenes and tris-

  nitrobenzenes as well as alkylbenzenes or alkoxybenzenes optionally containing substituent groups in the aromatic nucleus or in the alkyl or alkoxy group or groups. For example, the compound may be a dinitreated or trinitro derivative of an optionally substituted alkylbenzene or alkoxybenzene, containing one to three optionally substituted alkyl and / or alkoxy groups, each having one to four carbon atoms The compound may be for example a dinitreated or trinitrogenated derivative of toluene, ethylbenzene, propylbenzene, butylbenzene,

  xylene, methylethylbenzene, diethylbenzene or mesotheli

  tylene, substituted or unsubstituted, or a compound from other families

  which belong to the compounds of the following list.

  As possible substituents of the aromatic ring

  tick, in addition to the group or nitro groups and the group -

  or alkyl or alkoxy groups, when present in the nitroaromatic compound or compounds of the

  killing C, preferred groups other than halogens, -

  are selected from OH, SH, N 3, NR 1 R 2, CO OR 3 and O OCR 4, R 1, R 2, R 3 and R 4 each independently represent H or a single alkyl or alkoxy group (containing a at four

carbon atoms) or phenyl -

  Component C may be, for example, one or more of the following known compounds (T F / C designating

  the melting temperature expressed in degrees Celsius): -

  Compound Name TF / C n I 1-amino-2,4-dimethyl-3-nitrobenzene 81-82 2 1-amino-3,4-dimethyl-2-nitrobenzene 65-66 3 1-amino-3,5-dimethyl 2-Nitrobenzene 56 4 2-amino-1,3-dimethyl-4-nitrobenzene 81-82 2-amino-1,5-dimethyl-3-nitrobenzene 76 6 5-amino-1,2-dimethyl-3-nitrobenzene 74 -75 7 1 amino-2-methoxy-3-nitrobenzene 67 8 1,3-dihydroxy-2-nitrobenzene 87-88

  1,2-dimethoxy-3-nitrobenzene 64-65 ,.

  1,2-dimethoxy-4-nitrobenzene 98 f 11 1,3-dimethoxy-2-nitrobenzene 89 12 1,4-dimethoxy-2-nitrobenzene 72-73 13 2,4-dimethoxy-1-nitrobenzene 76-77 14 1,2-dimethyl-3,4-dinitrobenzene 82 1,2-dimethyl-3,5-dinitrobenzene 77 16 1,3-dimethyl-2,5-dinitrobenzene 101 17 1,4-dimethyl-2,3-dinitrobenzene 93 18 2,3-dimethyl-1,4-dinitrobenzene 89-90 19 1,2-dimethyl-4-hydroxy-5-nitrobenzene 87 1,3-dimethyl-2-hydroxy-4-nitrobenzene 99-100 21 1 4-dimethyl-2-hydroxy-3-nitrobenzene 34-35 22 1,5-dimethyl-2-hydroxy-3-nitrobenzene 73 23 1,5-dimethyl-3-hydroxy-2-nitrobenzene 24 2,5-dimethyl 1-hydroxy-3-nitrobenzene 1,2-dimethyl-3-nitrobenzene 1,2-dimethyl-4-nitrobenzene 27 1,3-dimethyl-2-nitrobenzene 28 1,3-dimethyl-5-nitrobenzene 29 1,4-dimethylbenzene 2-nitrobenzene 2,4-dimethyl-1-nitrobenzene 31 1,3-dinitrobenzene 32 1,3-dinitro-2ethoxybenzene 33 1,3-dinitro-5-ethoxybenzene 34 1,4-dinitro-2ethoxybenzene 2,4-dinitro-1- ethoxybenzene

  36 1,3-dinitro-5-isopropyl-4-hydroxy-

  6-methylbenzene-1,2-dinitro-4-methoxybenzene 38 1,3-dinitro-5-methoxybenzene 1,4-dinitro-2-methoxybenzene 2,4-dinitro-1-methoxybenzene 2,4-dinitro-1,3, 5-Trimethylbenzene 42ethoxy-2-nitrobenzene 43 1-Ethoxy-4-nitrobenzene 44 1-Ethyl-2-nitrobenzene 1-Ethyl-3-nitrobenzene 46 1-Ethyl-4-nitrobenzene 47 1-Isobutoxy-2-nitrobenzene 48 4 isopropyl-1-methyl-2-nitrobenzene 49 1-isopropyl-2-nitrobenzene 1-isopropyl-4-nitrobenzene 51 1-mercapto-2-nitrobenzene 52 1-mercapto-4-nitrobenzene 53 1-methoxy-2-nitrobenzene 54 1-methoxy-3-nitrobenzene 1-methoxy-4-nitrobenzene 56 2-methoxy-1,3,5-trinitrobenzene 57 nitrobenzene 58 1-nitro-2-triazobenzene

66 to 66.5

-31 -

59.5 to 60.5

97.5 96-98 86-87, 5,205.5

94.5 to 95.5

  -23 -12 2 (oil) 58.5 38-39, 7 53-55 c 1-nitro-3-triazobenzene 1-nitro-4-triazobenzene 1-nitro-2,3,5-trimethylbenzene 1-nitro-2,4 2-nitro-1, 3,5-trimethylbenzene 1,2,4-trinitrobenzene 1, 3,5-trinitrobenzene N- (2-nitrophenyl) -benzamide 2-nitrophenyl benzoate 3-nitrophenyl benzoate 4-nitrophenyl benzoate 2 4-nitrotoluene 2,5-dinitrotoluene 2,6-dinitrotoluene 3,4-dinitrotoluene 2,4-dinitro-6-hydroxytoluene 3,5-dinitro-4-hydroxytoluene 2-hydroxy-3,4,5-trinitrotoluene 3-hydroxy -2,4,6-trinitrotoluene 2,4,6trinitrotoluene 61-62 71-72 94-95

109-110

  Preferably, at least 50% by weight of the constituent

  C are formed by one or more dinitrobenzenes

  alkyl substituted cliques, for example selected from dinitrotoluenes, dinitroethylbenzenes and dini J tropropylbenzenes. It has been found that nitroaromatic compounds as described above form energy-rich plasticizers compatible with nitramine-based energy-rich fillers and are very suitable in treatment mixtures with such fillers and

  polymeric binders. Preferably, the nitro-plasticizer

  The nitroaromatic compounds described above are known or can be prepared by well-known methods.

63

  For example, in the preparation of the nitro derivatives of alkylbenzenes, the suitable alkylbenzene is treated with sulfuric acid and nitric acid concentrated at a temperature of less than 40 ° C. When the product obtained is a mixture of nitro compounds, for example example containing dinitrated and trinitred derivatives, such a mixture can itself be used in component C or as component C. Although component C advantageously contains one or more monocyclic nitroaromatic compounds, for example so that the compound or compounds monocyclic nitrates form at least 50% by weight of component C, it may also contain one or more nitroaromatic compounds containing more than one aromatic nucleus, for example one or more two-ring esters listed below or one or more nitro derivatives of biphenyl, naphthalene diphenylmethane, dibenzyl or stilbene, preferably containing them or three nitro groups in

  Each core An example is the 2,2 ', 4,4', 6,6 '-hexanitro-

stilbene.

  Although component C is preferably entirely composed of nitroaromatic compounds as described above, it may also contain other energy-rich or non-energy-rich plasticizers, as optional adjuvants. For example, component C may contain, in addition to certain amount of one or more plasticizers

  known energy-rich, such as GAP (polymer of gly-

  cidylazide), BDNPA / F (bis-2,2-dinitropropylacetal / formal), dimethylmethylenedinitramine, bis (2,2-dinitropropyl) formal, bis (2,2,2-trinitroethyl) formal, bis (2 2-fluoro-2,2-dinitroethyl) formal, diethylene glycol dinitrate, glycerol trinitrate, glycol trinitrate, triethylene glycol dinitrate, tetraethylene glycol dinitrate, trimethylolethane trinitrate,

  butanetriol trinitrate or 1,2,4-butanetriol trinitrate.

  Alternatively or additionally, component C may

  hold one or more known plasticizers of a non-energy-rich type such as the dialkyl esters of

  adipic or phthalic acid, for example ledibutylphta -

  or diethyl phthalate, triacetin, tricresyl phosphate, polyalkylene glycols and their derivatives in the form of alkyl esters, for example polyethylene glycol,

  polypropylene glycol and butyl ether of diethylene

  However, preferably at least 50% and preferably

  At least 75% of the weight of component C is

  by one or more nitroaromatic compounds.

  In the composition according to the invention, the constitution

  A may be any suitable polymeric binder It may contain an inert binder-forming material, an energy-rich binder-forming material or a mixture of inert and energy-rich binder-forming materials However, generally, the increase in The high energy content of the binder increases the sensitivity and the explosive nature of the energy-rich material that is formed. As a result, the binders used which are high in energy are advantageously not very high in energy. For example, when the binder is a mixture of materials.

  inert and rich in energy, the inert matter forms the

  at least 50% of the weight of the binder.

  Examples of suitable inert or non-energy rich binder materials are cellulosic materials. such as esters, for example cellulose acetate, cellulose acetate butyrate, polyurethanes, polyesters, polybutadienes, polyethylenes,

  polyvinyl acetate and mixtures thereof and / or their

lymères.

  Examples of such suitable energy-rich binder materials are nitrocellulose, polyvinyl nitrate, nitroethylene, nitroallyl acetate, nitroethyl acrylate, nitroethyl methacrylate,

  trinitroethylene acrylate, dinitroacrylate acrylate,

  propyl, C-nitropolystyrene and its derivatives, poly-

  urethanes having aliphatic groups C and groups

  nitrates N-, polyesters formed from dinitro-

carboxylic acids and dinitrodiols.

  We prefer cellulosic materials for the

  component A, containing from 0 to 60% by weight of nitrocellulose

  for example, containing 12 to 14% by weight of N and 100 to 40% by weight of an inert cellulosic ester such as

  cellulose acetate or cellulose acetate butyrate.

  Preferably, component B is a granular or powdery solid material which can be uniformly incorporated in component A. Preferably, at least 75% and advantageously at least 90% of the weight of component B consists of one or more nitramine compounds heteroalicyclic compounds Nitramine compounds are those containing at least one N-NO 2 group. The heteroalicyclic nitramines have a ring containing N-NO 2 groups. Such a ring or rings may contain, for example, two to ten carbon atoms and Two to ten nucleus nitrogen atoms Examples of preferred heteroalicyclic nitramines are RDX (cyclo-1,3,5-trimethylene-2,4-6-trinitramine, cyclonite

  or "Hexagen"), HMX (cyclo-1,3,5,7-tetramethylene-2,4,6,8-

  tetranitramine, "Octogen) or TATND (tetranitrotetramino-

decalin) and their mixtures.

  Component B preferably contains 50 to 100% by weight of RDX.

  pulses, the composition contains 70 to 80% by weight of RDX.

  Other energy-rich charge materials may be added to the nitramine or nitramines of component B, the constituent or constituents other than

  that a nitramine forming up to 25% of the weight of

  Examples of known high energy-rich materials are picrite (nitroguanidine), TAGN, aromatic nitramines such as tetryl, ethylenedinitramine and nitrate esters such as

  nitroglycerin (glycerol trinitrate), butanetriol trinitrate or pentaerythritol tetranitrate.

  Various known adjuvants can be added Glo to the compositions according to the present invention containing the constituents A, B and C as specified above. Preferably, the amount of adjuvants does not exceed 10% of the weight and preferably 5% of the weight of the combined mixture. as a propellant. The adjuvant may for example contain one or more

  stabilizers, such as carbamite or PNMA (para.

  nitromethylmetoxyaniline) and / or one or more modifying agents

  ballistic indicators, for example carbon black or lead salts, and / or one or more flash reducers, for example one or more sodium or potassium salts, for example sodium or potassium sulphate or bicarbonate .

  The preferred compositions according to the invention

  designed for use as propellants for weapons contain: nitrocellulose 8 to 10% by weight cellulose acetate butyrate 6 to 12% by weight RDX 70 to 80% by weight nitroaromatic plasticizer 5 to 10% by weight carbamite stabilizer 1% by weight

  In this composition, the nitroaromatic plasticizer

  It is preferably selected from the following: (a) a mixture of dinitroethylbenzene and trinitroethylbenzene containing: dinitroethylbenzene 50-64% by weight trinitroethylbenzene 36-50% by weight (b) 2,4-dinitrotoluene, (c) 4,6 -dinitro-o-cresol,

(d) 2,4-dinitro-m-xylene.

  The compositions according to the invention can be formed into products such as propellants by techniques known to those skilled in the art. The plasticizer containing component C is added to the polymer of component A and absorbed by it so that the polymer swells and softens When constituent C contains

  solid matter, it can be melted and then added to the

  A or added in a suitable solvent such as

  Acetone or Ethyl Acetate Component B, preferably

  in the form of a paste formed with an organic solvent

  that is mixed with a mixture of the constituents A and C in a suitable kneader so that they form a homogeneous composition Finally, the produced composition is compressed

  or extruded as a paste-like material by suitably shaped extrusion dies Extrusion can be carried out using a twin-screw extruder rotating simultaneously.

  The product obtained by extrusion of the compositions according to the present invention can be obtained in any suitable form. For example, when the product is a weapon propellant, it can be obtained in the form of rods or granules of known configuration. The rods are usually formed by cutting rods of suitable length or extruded strands by suitable dies, giving a configuration comprising a longitudinal slit. The pellets are customarily formed analogously by cutting sections of rods or rods. much shorter, obtained by

  Normally, such granules have small holes, for example seven holes arranged along their length, so that they form suitable corner-blast surfaces.

  An important feature of some propellant-forming products is the cheek dimension of

  This configuration, well known to those skilled in the art of propellants and propellants, is the minimum thickness of propellant that must burn from one surface to another.

  For example, in a propellant having the configuration of a single tube, the cheek thickness is the thickness of the tube ring formed in section between the inner and outer walls. The cheek dimensions for the products proteins having the compositions according to the invention can

  vary over a range that depends on the particular application

  for example from 0.5 to 4.0 mm, although the more advantageous cheek dimensions of the lower end of this range, for example from 0.5 to 2.0 mm, are generally suitable for most applications because the compositions generally have a low rate of burning. Examples of compositions according to the invention and their application for the production of agent materials

  propellants are now described.

  In the examples which follow, the suitable constituents A, B and C (as defined previously) are prepared by known methods. These constituents are then put into the form of the propellants in the following general manner, known by itself. Solid constituents forming component A and adjuvants in a small amount, for example a stabilizing agent and / or a flame-reducing agent, are charged with a powder in an incorporation apparatus (mixer) whose blades have been wetted with an organic solvent The viscous liquid containing component C is added to a solvent and the mixture is poured into the incorporation apparatus to which

  an additional amount of solvent is then added. The mixture is then incorporated by mixing for 30 minutes and an additional amount of solvent is then added and the mixture is then mixed for a further 4 hours.

  cold water circulates continuously in the ap-

  likewise of incorporation during mixing.

  After treatment in this apparatus of incorporation,

  the mixture formed is dried in an oven at a temperature of

  between about 50 and 90 o C for a period of some

  hours, and is then compressed or extruded into strands of desired configuration and cheek size which is cut into suitable sections as can be

professionals.

  The products according to the present invention containing compositions having the following constituents can be prepared in the manner previously described. In the following compositions, "Nitrocellulose" refers to nitrocellulose containing 12.6% by weight of N. Ingredient Composition 1 Component A Constituent B Constituent C

Composition 2-7

  Constituent A Constituent B Constituent C wt% cellulose acetate RDX 2,4-dinitrotoluene carbamite cellulose acetate RDX 2,4-dinitrotoluene compound X * carbamite * X ranging successively from 1 to 68 and from 70 to 75 as

indicated previously.

  Composition 76 Component A Cellulose acetobutyrate nitrocellulose Constituent B RDX Constituent C 1 Constituent C 1 containing: 2,6-dinitrotoluene 2,4-dinitrotoluene 2,4,6-trinitrotoluene Composition 77 Constituent A parts in parts of cellulose acetate butyrate nitrocellulose Constituent B RDX Constituent C 2 Component C 2 Containing: 2,6-dinitrotoluene 2,4-dinitrotoluene 2,4,6-trinitrotoluene 2 parts in 54 parts to 44 parts by weight / weight weight weight weight Ingredient% by weight Composition 78 Constituent A cellulose acetate butyrate

nitrocellulose -

  Constituent B RDX Constituent C 3 Constituent C 3 containing: 2,6-dinitrotoluene 2,4-dinitrotoluene 2,4,6-trinitrotoluene Composition 79 Component A -9 2 parts by weight 64 parts by weight 34 parts by weight cellulose acetobutyrate nitrocellulose Constituent B RDX Constituent C 4 Component C 4 Containing: 2,6-dinitro-1-ethylbenzene 2,4-dinitro-1-ethylbenzene 2,4,6-trinitro-1-ethylbenzene parts by part by weight 80 Constituent A nitrocellulose cellulose acetobutuyrate Constituent B RDX Constituent C 5 Constituent C 5 containing: 2,6-dinitro-1-ethylbenzene 2,4-dinitro-1-ethylbenzene 2,4,6-trinitro-1-ethylbenzene 2 parts in 54 parts in 44 parts by weight weight weight I 5 d Ingredient% by weight cellulose acetate butyrate

nitrocellulose -

  Constituent B RDX Constituent C 6 Constituent C 6 containing: 2,6dinitro-1-ethylbenzene 2,4-dinitro-1-ethylbenzene 2,4,6trinitro-1-ethylbenzene 2 parts by weight 64 parts by weight 34 parts by weight cellulose acetobutyrate nitrocellulose Constituent B RDX Constituent C 7 Component C 7 containing: 1isopropyl-2,6-dinitrobenzene 1-isopropyl-2,4-dinitrobenzene 1isopropyl-3,4,6-trinitrobenzene Composition 83 Constituent A parts-to-parts in parts of nitrocellulose cellulose acetobutyrate Constituent B RDX Constituent C 8 Constituent C 8 containing: 1isopropyl-2,6-dinitrobenzene 1-isopropyl-2,4-dinitrobenzene 1isopropyl-3,4,6-trinitrobenzene Weight Weight Weight / 2 parts by weight 54 parts by weight 44 parts by weight Composition 81 Constituent A Composition 82 Constituent A Ingredient Composition 84 Constituent A% by weight cellulose acetate butyrate

nitrocellulose -

  Constituent B RDX Constituent C 9 Constituent C 9 containing: 1isopropyl-2,6-dinitrobenzene 1-isopropyl-2,4-dinitrobenzene 1isopropyl-3,4,6-trinitrobenzene Composition 85 Constituent A Constituent B Constituent C 6 Constituent D Constituent Composition 86 Component A 2 parts by weight 64 parts by weight 34 parts by weight cellulose acetobutyrate nitrocellulose RDX 8.2 73.8 carbamite C 6 being as already defined cellulose acetobutyrate nitrocellulose Constituent B RDX Constituent C 10 Constituent of carbamite Constituent Containing: 2,6-dinitro-ethylbenzene 2,4-dinitro-1-ethylbenzene 2,4,6-trinitro-1-ethylbenzene Composition 87 Constituent A 8.2 73.8 2 parts by weight 48 parts by weight parts by weight cellulose acetobutyrate nitrocellulose Constituent B RDX Constituent C 10 Constituent of carbamite Constituent C 10 being as already defined I Ingredient Composition 88 Constituent A Constituent B Constituent C 10 Constituent D cons Composition 89 Constituent A Constituent B Constituent C Constituent D Composition 90 Constituent A Constituent B Constituent C Constituent D Composition 91 Constituent A Constituent B Constituent C Constituent D% by weight cellulose acetobutyrate nitrocellulose RDX carbamite C 10 being as previously defined cellulose acetate butyrate nitrocellulose RDX 4,6-dinitro-o-cresol carbamite cellulose acetate butyrate nitrocellulose RDX 2,4-dinitrobenzene carbamite cellulose acetate butyrate nitrocellulose RDX 2,4-dinitro-m-xylene carbamite Compositions 1 to 91 have amounts of energy

  in the approximate range of 1100 to 1300 J / g.

  As indicated above, the double base compositions generally have a lower ignition temperature

  and lower vulnerability for similar amounts of energy.

  Examples of the properties of some of the compounds -0.5 0.5 8.2 73.8 8.2 73.8 8.2 73.8 previous sessions are given in

  Table 1 which follows, in which: E = energy of the propellant in k J / kg, T = flame temperature of the propellant in K, d = density in g / cm 3. Table 1: properties examples of compositions Composition n AND d

1178 3088 1.689

86 1182 3143 1.689

87 1216 3241 1,691

88 1279 3453 1.706

89 1170 3092 1.686

1174 3123 1.671

91 1168 32054 1.671

  Compositions 1 to 91 have temperatures

  from 20 to 30 C above those of the compounds

  known double base and triple base

  similar amounts of energy.

  For example, a composition containing: nitroglycerin 32% by weight nitrocellulose 32% by weight picrite 35% by weight carbamite 1% by weight has an amount of energy similar to that of the composition

  but its ignition temperature, 161 C, is clearly

  lower than that of composition 85 which is 226 O.

Claims (17)

  1 Energy-rich composition containing the constituents   following proportions, in the following relative proportions:   component A: from 5 to 25% by weight of a binder   lymère, constituent B: from 65 to 90% by weight of a very high energy charge containing at least one heterocyclic nitramine group, and   component C: from 1 to 15% by weight of a plastic   containing at least one nitroaromatic compound, the weight percentages of the constituents A, B and C reaching%.   Composition according to claim 1, in which   component A forms 10 to 25% of the weight, the   killing B forms 70 to 90% of the weight and constituent C form   3 to 12% of the weight of the composition.   3 Composition according to one of claims 1 and   2, wherein component C contains one or more   compounds that melt at a temperature below 100 OC.   Composition according to claim 3, in which   which the nitrated compound or the nitro compounds are liquid at room temperature (20 OC).   Composition according to claim 1, in the   which the nitro compound of component C is a compound. monocyclic nitroaromatic 7   6 Composition according to claim 5, in which   which each nitrated compound is a dinitre or tri-   nitrated or a mixture of such compounds.   Composition according to claim 6, in which   wherein the compound or compounds for use in Component C or Component C are selected from dinitrobenzenes and trinitrobenzenes or alkylbenzenes or alkoxybenzenes optionally containing substituent groups on the aromatic ring or in the   group or the alkyl or alkoxy groups.   8. A composition according to claim 7, wherein each nitrated compound is a dinitreated derivative or tri-   nitro compound of an optionally substituted alkylbenzene or alkoxybenzene containing one to three optionally substituted alkyl and / or alkoxy groups each containing one to four atoms of carbon.   Composition according to claim 8, in which   which each nitrated compound is a dinitre derivative or tri-   nitrated toluene, ethylbenzene, propylbenzene, butylbenzene, xylene, methylethylbenzene, diethylbenzene or mesitylene optionally substituted.   10 Composition according to any one of the   cations, in which at least 50% of the weight   constituent C are formed by one or more dinitro-   alkyl-substituted monocyclic benzenes selected from   dinitrotoluenes; dinitroethylbenzenes and dinitro- propylbenzenes.   11 Composition according to any one of the   cations, in which at least 50% of the weight of constituent C consists of one or more nitroaromatic compounds.   12 Composition according to any one of the   cations, wherein component A contains 0 to 60% by weight nitrocellulose and 100 to 40% by weight an inert cellulosic ester.   13 Composition according to any one of the   cations, in which at least 75% of the weight of component C is formed by one or more compounds of heteroalicyclic nitramine.   Composition according to claim 13, in the   at least 75% of the weight of constituent B is formed   by one or more of the following compounds: RDX (1,3,5-cyclohexyl)   trimethylene-2,4,6-trinitramine, cyclonite or "Hexagen"), HMX (cyclo-1,3,5,7-tetramethylene-2,4,6,8-tetranitramine,   "Octogen"), or TATND (tetranitrotetraminodecalin).   Composition according to any one of the   Previously, which comprises: nitrocellulose 8 to 10% by weight cellulose acetate butyrate 6 to 12% by weight RDX 70 to 80% by weight nitroaromatic plasticizer 5 to 10% by weight carbamite 1% by weight   Composition according to claim 15, in which   which the nitroaromatic plasticizer is selected from: (a) a mixture of dinitroethylbenzene and; trinitroethylbenzene containing: dinitroethylbenzene 50 to 64% by weight trinitroethylbenzene 36 to 50% by weight (b) 2,4-dinitrotoluene, (c) 4,6-dinitro-o-cresol, (d) 2,4-dinitro-m-xylene.   17 Propulsion product for weapons, which has an ompo   according to any preceding claim Slots.   The composition of claim 1 and   identical to that of any of the examples   particulars described herein.