DE2117854C3 - Composite explosives and their manufacture - Google Patents

Description

2. Composite explosive according to claim 1, characterized in that the amount of the binder (B) Is 8 to 20 wt%

3. Composite explosive according to claim 1 or 2, characterized in that the carboxyl-containing polybutadiene has at least two carboxyl groups per molecule, a viscosity at 25 ° C of 10 to 80 Pa-s and a molecular weight of 1000 to 8000

4. Composite explosive according to one of claims 1 to 3, characterized in that the carboxyl-containing polybutadiene has only two terminal ones Contains carboxyl groups per molecule

5. composite explosive according to claim 4, characterized in that it further comprises up to 65 wt .-% a finely divided reducing metal selected from aluminum and magnesium.

6. Composite explosive according to claim 4 or 5, characterized in that it further comprises up to 65 Contains wt .-% potassium and / or ammonium perchlorate

7. composite explosive according to any one of claims 1 to 6, characterized in that it further Contains excipients, among the usual plasticizers for polyolefins, common antioxidants for polyolefins and modifiers for modification the physical or detonation properties of the composite explosives.

8. A method for producing the composite explosives according to any one of claims I to 7, marked by

- Mixing the explosive particles (A) with the Ingredients of the binder (B) in a vacuum at a temperature below 95 "C.

- Potting the casting compound obtained, if necessary in a vacuum, if necessary shaken during or preferably after potting until complete degassing will,

and

- Tempering of the castings at a temperature below 95 ° C.

9. The method according to claim 8, characterized in that the components of the binder (B) mixed in a vacuum before adding the explosive (A).

The invention relates to a composite explosive with a rubber-like binder, the is intended in particular for production by casting, and a method for its production.

ϊ A composite or composite explosive is understood to be an explosive mass of any shape, which consists of a uniform dispersion of explosive particles in an optionally crosslinked binder , which also contains additives to modify the

ίο May contain physical or detonation properties.

Composite explosives are made by compression molding, extrusion or casting

The compression molding processes are the classic manufacturing

processes in which very high pressures (200 ° bar) are used. In these procedures, the Explosive particles coated with a binder and then one at different temperatures exposed to strong pressure to explosive blocks or plates. The extrusion processes require less high prints.

The casting processes are in line with the latest developments; they work without pressure, but show that The disadvantage is that it is a perfectly defined and an adapted a complicated manufacturing process Require binder composition, on which the quality of the end product essentially depends

Among the composite explosives with rubber-like binder intended for manufacture by casting

jo belong according to the current state of the art:

1. Explosives mixes with

75 to 95% by weight of explosives such as cyclonite, trinitrotoluene, pentaerythritol tetranitrate, j5 tetryl, nitroguanidine, picric acid, nitrolactose,

Mannitol, mannitoctonitrate and sucrose octanitrate and 5 to 25% by weight of a polysilicon binder.

These explosives mixtures can be based on two

different ways can be produced. In one method, the explosive is mixed with a polymerizable silicone and that obtained mixture to a temperature below

4j of the point of decomposition of the explosive substance until a plastic mass is obtained. Another method is to heat a polymerizable silicone until it forms a gel with the desired consistency *, after which this Polysilicon gel is mixed with the explosive to form the desired product. Disadvantages of these processes are the reaction ^{temperatures, which are always above 100.degree.} C. and usually in the order of 125 to 150.degree

-, -, what some precautionary measures are required in the manufacturing process as well as those with these Explosives received detonation velocities of less than 7000 m / s, and those used polymerizable silicones are relatively expensive

mi raw materials. Ultimately, the casting process results no exact shapes and not the desired surface fineness

2. Composite explosives made of flexible foils with rubber-like binders, which are based on

hi an explosive substance such as penthritol, hexogen, Octogen as well as an aqueous latex emulsion, whose water content at Molding by absorption in the mold or

removed by drying. It is in the With regard to the quality of the end product, it is essential to completely remove the water, which involves considerable risks and difficulties. The absorption in a form like Drying is also difficult process steps, and drying is also little works economically. In addition, mechanical surface finishing is usually required, in order to obtain the desired surface fineness, which further increases the prime costs increased and made more difficult to manufacture

The invention has for its object to remedy these disadvantages in a simple manner and to provide composite explosives that can have different shapes and contain a binder composition that is fully defined and at the same time compatible with the explosive substance and the manufacturing process by casting, ifc-ner a manufacturing process for Casting different shapes with the composite explosive according to the invention.
The task is solved according to the claims
The invention provides a composite explosive of explosive particles dispersed in a binder made of a rubber-like material. The composite explosive according to the invention is characterized by

(A) 19 to 92% by weight of an explosive with negative Oxygen value selected from Penthritol Hexogen, Octogen, Teti / 1 and TNT, and

(b) 8 to 50% by weight of an iJmsetr.jigsprodukts of a carboxyl group-hooked polybutadiene with a polyvalent epoxy compound ^: n a stoichiometric ratio of epoxy groups to carboxyl groups of 0.8 to 13 as a binder.

The composite explosives according to the invention have different degrees of softness. That used Binder is a resin which, depending on the desired product properties, the composition and change the degree of crosslinking, taking into account the proportion of explosive substance used can.

The binder used according to the invention is a reaction product of a carboxyl group-containing one Polybutadiene containing at least two COOH groups per molecule and at least one polyvalent Epoxy compound which has at least two epoxy groups per molecule which are linked to the COOH groups of the Carboxypofybutadiens can react. The polyvalent epoxy compound can also be a prepolymer. The binder can also contain various additives.

According to the invention, the explosive substance is among the explosives penthritol (pentaerythritol tetranitrate), Hexogen (cyclotrimethylene trinitramine), octogen (cyclotetramethylene tetranitramine), Tetryl (2.4.6-trinitrophenylmethylnitramine) and TNT (trinitrotoluene) selected, which have a negative oxygen value. The proportion of explosives is at least 19% by weight of the Composite explosives.

According to a preferred embodiment, the composite explosive according to the invention contains a strong one Oxidizing agent, the proportion of which is at most 65% by weight of the composite explosive, preferably a Perchlorate such as potassium or ammonium perchlorate. These perchlorates can be used alone or mixed your use is very economical.

According to a further preferred embodiment

Form of the invention, the binder content is between 8 and 20% of the composite explosive, on this Way it is possible to obtain composite explosives of very high performance.

The composite explosive according to the invention also advantageously contains a finely divided metal with a very high Reducing power. This metal is used to achieve a glow, blow, fire and ignition effect. Aluminum or magnesium powder is preferably used. Its proportion is up to 65% by weight Composite explosives.

The composite explosive according to the invention can also contain a plasticizer. To do this will be Usual plasticizers used for polyolefins such as waxes, oils, esters such as dioctyl azelate and also liquid ones Polybutadienes and the like The plasticizer content is up to 60% by weight of the binder.

Furthermore, according to a special embodiment of the invention, the composite explosive contains an antioxidant. For this purpose, the inhibitors customary for rubbers are used, such as. B. phenols or Phosphites. An example of a phosphite is nonylphenyl phosphite suitable

Suitable phenols are about 2.2'BismethyIen- (4-methyl-6-t-butylphenol) and di-Zö-t-butyl-p-cresol.

The composite explosive can also contain auxiliaries which modify the physical or detonation-JO properties, for example red lead Pb ₃ O ₄ .

The method according to the invention for producing the composite explosives is characterized by

Mixing the explosive particles (A) with the constituents of the binder (B) in a vacuum a temperature below 95 ° C,

- Pouring the casting compound obtained, if necessary in a vacuum, if necessary during or, preferably after pouring, it is shaken until it is completely degassed,

and

- Tempering the castings at a temperature below 95 ° C.

4i The inventive method allows with the Composite explosives according to the invention by direct means of explosive parts of completely defined shape and any dimensions with the desired surface quality and a density that

■ χι comes close to the theoretical density everywhere. With the Explosive molded parts produced by the method according to the invention therefore do not require any post-processing.

The process can be adapted to specific uses of the product.

, 5 In a preferred embodiment, a Carboxypolybutadiene with a molecular weight between 1000 and 8000, one COOH equivalent between 0.25 and 3.00 mval, i.e. h, at least two COOH groups per molecule and one viscosity

M) used between 10 and 80 Pa · s at 25 ° C. That Polybutadiene used preferably has only two COOH groups per molecule at the ends of the Main chain. Such prepolymers result in end products with the best elastic properties

b> received.

The polyepoxide used can contain substituted epoxy groups.

The advantage of the epoxy groups is that they

can be opened by the addition of COOH groups without the formation of low molecular weight compounds which have a tendency to diffuse or which could lead to the formation of gas inclusions in the composite explosive. It is advantageous to use a polyepoxide with more than two epoxy groups per molecule,
Examples are:

- Condensation products of epichlorohydrin with Polyols;

- Epoxidation products of liquid polybutadienes;

- epoxidized soybean oils;

- Condensation products of epychlorohydrin with Higher molecular weight triplets;

- Epoxidation products of derivatives of vinylcyclohexane;

- dicyclopentadiene dioxide.

The reaction of the carboxypolybutadiene with the polyepoxide is used to generate a three-dimensional, rubber-like network that is elastically deformable and has very little permanent deformation owns

The mechanical properties of the binder network can be determined via the molecular weight of the Carboxypolybutadiene and the number of epoxy groups per molecule of the polyepoxide and be Strongly modify molecular weight.

The elasticity and softness of the binder network naturally depend on the average molecular weight of the chains between the networking points. High molecular weight polybutadienes whose COOH groups as far away from each other as possible, possess a strong elasticity and a large elongation at break. If you want to get the best possible elasticity and ductility properties, you use According to the invention, advantageous polybutadienes which have only two terminal COOH groups. Such Polybutadienes accordingly provide products with the best elasticity properties. The ductility of the As already mentioned, composite explosives depend not only on the properties of the binder, but also depends on the proportion of explosives. It is thus possible to use different explosive blocks and plates Maintain ductility.

According to another preferred embodiment of the method according to the invention, the crosslinking is and accelerates chain elongation of the resin with a catalyst.

Organic metal compounds are suitable as catalysts, e.g. fi. Acetylacetonate (salts of tautomeric form of acetylacetone), metal alkyl derivatives or salts of resorcylic acid, lauric acid, 2-ethylhexanoic acid or a naphthenic acid (essentially alkylcyclopentane acetic acid), the Metals are iron, lead, tin or cobalt.

The end properties of the rubber network are determined by the degree of crosslinking of the resin on the Determined based on carboxypolybutadiene. The degree of crosslinking can be changed by changing the amount of used bi · or higher functional crosslinking agent change. The higher the number of reactive groups per molecule of the crosslinking agent, the more The crosslinking is stronger and the resulting composite explosive is the more rigid.

The stoichiometric ratio between the The epoxy groups of the polyepoxide and the COOH groups of the carboxypolybutadiene are between 0.8 and 1.3, by changing the stoichiometric ratio nisses around the value 1, the networking of the rubbery binder and, as a result, the elasticity and ductility properties are slightly modified.

A wetting agent can also be introduced into the reaction mass; this is where waxes and lanolin come in Phosphatides such as lecithin as well as some substances such as dioctylsulfosuccinic acid ester Na salt and «-chloronaphthalene in question. These wetting agents have the task of mixing and flowing the To facilitate casting compound.

The reaction temperature is preferably between room temperature and 95 ° C.

The components of the binder can be placed under vacuum before the explosive substance is introduced be mixed. This allows a high charge composite explosive, i. H. with a high Proportion of explosive substance, can be obtained. Provided that the temperatures are relative are low, the Sprengs. ^ tf can then be without to mix in any danger.

Alternatively, the components of the binder and the explosive substance can also be used together be mixed under vacuum. There is no risk here either.

The method according to the invention thus has an obvious one compared to conventional methods Advantage, since these require reaction temperatures

jo which are relatively close to the point of decomposition of the explosive substance. Thus, the mixing takes place in the conventional production of composite explosives with Polysiliconbindemittel at temperatures up to what caused to 15O ⁰ C difficulties and risks of explosion in the production.

The casting compound is expediently shaken during casting or after casting. This operation that too can take place under vacuum, the purpose of degassing the casting compound.

According to a preferred embodiment of the invention, the product is at the end of the process at a temperature that ensures hardening in a bearable time (below 95 ° C).

The method according to the invention accordingly comprises the following basic operations:

1. Mixing the binder components in vacuo at a temperature below 95 ° C;

2. Adding the explosive substance and mixing under vacuum at a temperature below 95 ° C.
(The first two operations can be combined into a single one: mixing the constituents of the binding agent and the disintegrating substance together at a temperature below 95 ° C in a vacuum).

3. Pouring the casting compound obtained, preferably with shaking, for degassing, if necessary under Vacuum. (Alternatively, the casting compound can also be shaken after casting).

4. Tempering of the casting compound at a temperature below 95 ° C. The tempering or hardening time is several days.

The procedure according to the invention is not based on the strict adherence to the above basic operations limited, because depending on the application, the procedure can also be modified.

The vacuum degassing of the casting compound by shaking it is special in the manufacture of explosive boards

a very important stage of the manufacturing process as it contributes to a large extent to gas bubbles or To avoid gas inclusions in the composite explosive. In addition, this results in high surface quality obtain. This results in a further advantage over the conventional casting process for Manufacture of composite explosives with rubber-like binders.

The casting method according to the invention provides direct with the carboxypolybutadiene-based binder Paths molded parts with perfect shape and in any dimensions, which nn all points Have a density of at least 99.5% of the theoretical density, while the average density in conventional Method is only 96 to 97% of the theoretical density. According to the method according to the invention Manufactured parts do not form cracks and can be glued directly to the walls of the containers in which they were poured because they completely fill any volume and the shrinkage in the Polymerization is negligibly small.

The composite explosives thus obtained are in contrast to those obtained by pressing processes Explosives not very porous and very homogeneous. Their mechanical properties are analogous to those of rubber-bound ones Explosives. They are not brittle, have excellent impact strength as well as a favorable aging behavior. The surface quality after casting is much better than parts that by conventional casting processes, where expensive post-processing operations are often required in order to achieve the exact shape and the desired surface quality. The invention Composite explosives can also have very high detonation speeds in the range of 4000 to Reach 8600 m / s.

In the table below is the detonation speed depending on the proportions of explosive substance (e.g. Okiogen) and binding agent specified.

Oktouen binder Detonation speed (m / s) 75 25th 7200 80 20th 7900 82 18th 8150 85 15th 8300 90 10 8600

Preferred examples of composite explosives according to the present invention are described below.

The exact weight of the polyepoxide to be used must be determined beforehand, taking into account the specified determined stoichiometric ratios of epoxy groups to COOH groups of the carboxypolybutadiene will.

In the examples, the carboxypolybutanedienes are polybutadienes with molecular weights between 2000 and 4000 with terminal carboxyl groups are used.

The following are used as polyepoxides:

- a liquid epoxy resin with Z5 epoxy groups / kg or

- a liquid epoxy resin with 63 epoxy groups / kg.

Example I. (Wt .- '> / o) 90 Explosives (octogen) 10 Binder: 6.1 Carboxypolybutadienef / W = 2000) Epoxy resin (2.5 meq epoxy groups / g 2.4 (stoichiometric ratio 1.0) 1.22 Dioctyl azelate 0.07 Nonylphenyl phosphite 0.07 Iron naphthenai Disulfosuccinic acid ester 0.07 Na-SaIz 0.07 vChlonaphthalene Detonation speed of the 8000 m / s obtained explosives:

A mixer working under vacuum is used for the production, the temperature of which can be regulated between room temperature and 100 "C. The device is kept at 90 ^J C. First, all components of the binding agent are introduced. Then a vacuum is applied and the mixer is put into operation. The mixture is degassed. Then the mixer is switched off and the vacuum is released. Then the explosive substance (Octogen) is added in several partial amounts, mixing under vacuum after each addition. Mixing under vacuum is continued until the casting compound obtained has a With the help of a vacuum casting device with thermostat and vibrating system, the casting compound is then poured into the mold ^{under vacuum and vibrating at a temperature of 90 ° C.}

After pouring, the product is shaken until it is completely degassed. That is how you achieve a complete degassing, which contributes significantly to this. Gas inclusions in the composite explosive block too avoid. In this way the desired surface quality is obtained. Finally, the cast product

ci ι. nici / ii uitu uic

The mold is placed in a chamber which is kept at a temperature of 80 to 90 ° C.

Example 2

Explosives (Octogen) 80

Binder: 20

Carboxypolybutadiene (M = 4000) 16.4

Epoxy resin

(6.5 meq epoxy groups / g)

(stoichiometric ratio 1.0) 1.3

Dioctyl azelate 1.62

Nonylphenyl phosphite 0.17

Iron naphthenate 0.17

Dioctyl sulfosuccinic acid ester

Na-Salz 0.17

Λ-chloronaphthalene 0.17

Detonation speed of the

explosives obtained: 7900 m / s

The explosive obtained is very ductile.

Example 3

Explosives (penthritol)
Binder:

(O / o by weight)

75

25th

9 21 17.4 Orboxypolybutadienef / V / = 4000) Epoxy resin (2.5 meq epoxy groups / g) (stoichiometric ratio 3.5 nis 1.0) 3.5 Dioctyl azelate 0.15 Nonylphenyl phosphite 0.15 Ei '^ nnaphthenai Diontylsulfosuccinic acid ester 0.15 Na-SaIz 0.15 vChlonaphthalene 7100 m / s Detonation speed: Example 4 (Weight ¹ Vo) 60 Particulate matter / (penthritol) 40 Binder: 35.8 Carboxypolybutadicn (M = 4000) Epoxy resin (6.5 meq epoxy groups / g) (stoichiometric ratio 2.8 nis 1.0) 0.35 Non-phenyl phosphite 0.35 Lead-2-ethylhexanoate Dioctylsiillosuccinic acid ester 0.35 Na-SaIz 0.35 \ -Chlornaphtha! In 5580 m / s Detonation speed: Example 5 (Wt .-%) 22nd .Explosive substance (penthritol) 50 Ammonium perchlorate 28 Binder: 25.1 Carboxypolybutadiene (M = 4000) Epoxy resin (6.5 meq epoxy groups / g) (stoichiometric ratio 1.9 nis 1.0) 0.25 Nonylphenyl phosphite 0.25 Lead-2-ethylhexanoate Dioctyl sulfosuccinic acid ester u, 25 Na-Saiz 0.25 vChlonaphthalene 4760 m / s Detonation speed: Example 6 (Wt .-%) 20th Explosive substance (penthritol) 50 Red lead PbiOj 30th Binder: 24.7 Carboxypolybutadiene (M = 4000) Epoxy resin (6.5 meq epoxy groups / g) (stoichiometric ratio 1.9 nis 1.0) 2.52 Dioctyl azelate 0.22 Nonylphenyl phosphite 0.22 Lead-2-ethylhexanoate Dioctyl sulfosuccinic acid ester 0.22 Na-SaIz 0.22 oc-chloronaphthalene 4220 m / s Detonation speed: Example 7 (Weight%) 20th Explosive substance (penthritol) 55 Aluminum powder

10

Binder: 25th Carboxypolybutadiene (M = 4000) 20.5 Epoxy resin (6.5 meq epoxy groups / g) (stoichiometric ratio nis 1.0) l.b Dioctyl azelate 2.1 Nonylphenyl phosphite 0.2 Lead-2-ethylhexanoate 0.2 Dioctyl sulfosuccinic acid ester Na-SaIz 0.2 fv chloronaphthalene 0.2 Detonation speed: 4650 m / s Example 8 (Wt .-%) SprerigstoffsubstiiM / (penthritol) 20th Magnesium powder 30th Binder: 50 Carboxypolybutadiene (M = 4000) 41.1 Epoxy resin (6.5 meq epoxy groups / g) (stoichiometric ratio nis 1.0) 3.2 Dioctyl azelate 4.1 Nonylphenyl phosphite 0.4 Lead-2-ethylhexanoai 0.4 Disulfosuccinic acid ester Na-SaIz 0.4 vChlonaphthalene 0.4 Detonation speed: 4560 m / s Example 9 (Wt .-%) Explosive substance (penthritol) 25th ToIi t 35 Binder: 40 Carboxypolybutadiene (M = 4000) 32.9 Epoxy resin (6.5 meq epoxy groups / g) (siocniomeiriscnes vernuit- nisl.0) 2.5 Dioctyl azelate 3.32 Nonylphenyl phosphite 0.32 Lead-2-ethylhexanoate 0.32 Dioctyl sulfosuccinic acid ester Na-SaIz 0.32 ic-chloronaphthalene 0.32 Detonation speed: 6000 m / s Example 10 (Wt .-%) Explosive substance (octogen) 75 Aluminum powder 10 Binder: 15th Carboxypolybutadiene (M = 2000) 10.8 Epoxy resin (6.5 meq epoxy groups / g) (stoichiometric ratio nis 1.0) 1.7 Dioctyl azelate 22nd Iron naphthenate 0.1 wax 0.1 ct-chloronaphthalene 0.1 Detonation speed: 8000 m / s

Example 11

Explosive substance (octogen)

Aluminum powder

Binder:

Carboxypolybutadiene (Kf = 2000)
Epoxy resin

(6.5 meq epoxy groups / g)
(stoichiometric ratio 1.0)
Dioctyl azelate
Iron naphthenate
wax
ix-Chlornaphlhalin

Detonation speed:

Example 12

Explosive substance (octogen)
Binder:

Carboxypolybuladiene (M = 4000)

Epoxy resin

(6.5 meq epoxy groups / g)

(stoichiometric ratio 1.0)

Nonylphenyl phosphite

Lead-2-ethylhexanoate

Dioctyl sulfosuccinic acid ester

Na-SaIz

Ä-chloronaphthalene
Duonation speed:

ue is ρ i e I 13

Explosives substance
(graphite octogen)
Binder: _

Carboxypolybutadiene (M - 2000)

Epoxy resin

(2.5 meq epoxy groups / g)

(stoichiometric ratio: -

nisl.0)

Dioctyl azelate

Nonylphenyl phosphite

Iron naphthenate

Dioctyl sulfosuccinic acid ester

Na-SaIz
Detonation speed:

Example 14

Explosive substance (penthritol)

Red lead Pb; jO4

Binder:

Carboxypolybutadiene (M = 2000)
Epoxy resin

(2.5 meq epoxy groups / g)
(stoichiometric ratio 1.0)

Nonylphenyl phosphite
Iron naphthenate
Dioctylsulfosuccinic acid ester Na salts

Detonation speed:

Example 15

(Wt%) 85

5 10

7.2

1.1

1.4 0.1 0.1 0.1 8350 m / s

(Ccv. -

75 25 22.4

1.72 0.22 0.22

0.22 0.22 7200 m / s

(Wt .-%)

85 15 9.2

3.7 1.83 0.09 0.09

0.09 8300 m / s

(Weight n / o)

20th

35

45

31.7

12.7 0.15 0.3

0.15 4050 m / s (% by weight)

Explosive substance (penthritol) 80

Binder: 40

Carboxypolybutadiene (M = 4000) 29.9 epoxy resin

(2.5 meq epoxy groups / g)
(stoichiometric ratio

nis 1.0) 6.0

Dioctyl azelate 3.02 nonylphenyl phosphite 0.27

Iron naphthenate 0.27

Wax or dioctyl sulfosuccinic acid ester NaSai /. 0.27

ix-chloronaphthalene 0.27

Detonation speed: 6400 m / s

Example 16

Explosive substance (hexogen) 40 Ammonium perchlorate NH4CIO4 31 Aluminum powder 15th Binder: 14th Carboxypolybutadiene ('Μ = 4000) 9.51 Epoxy resin (2.5 nival epoxy groups / g) {stoichiometric ratio nis 1.0) 1.96 Dioctyl azelate 2.27 Lead naphthenate 0.13 2.6-di-t-butyl-p-cresol 0.13 Detonation speed: 6500 m / s

After mixing, the casting compound becomes liquid. The explosive block obtained is very soft (ductile).

The explosives block is very ductile.

Example 17

(Wt .-%)

Explosive substance (hexogen) 71

Aluminum powder i5

Binder: _ 14

Carboxypolybutadiene (M = 4000) 9.51 epoxy resin

(2.5 meq epoxy groups / g)
(stoichiometric ratio 1.0) 1.96 dioctyl azelate 2.27 lead naphthenate 0.13 2.6-di-t-butyl-p-cresol 0.13 detonation velocity: 7750 m / s

The explosives block is very ductile.

In Examples 3 to 5 and 7 to 17 all ingredients (components of the binder and explosive substance) are mixed together under vacuum at 6O ⁰ C.

In example 6, all components are also mixed under vacuum, but only 45 ° C. is used

In Example 2, the mixing at 8O ⁰ C, whereby initially only the constituents of the binder are mixed.

In Examples 1 to 3, 7 and 13 to 17, the Casting compound poured under vacuum.

In Examples 4 to 6 and 8 to 12, the casting compound is cast under atmospheric pressure.

13 14

In Examples I to 13, the casting compound is used in. In Examples 16 and 17, the casting compound is used in

shaken under vacuum after casting; annealed then 5O ⁰ C.

vacuum degassing takes place with shaking, whereupon the explosives according to the invention can be

the product at a temperature that can be applied in any case wherever homogeneous and light

is below 95 ° C, is annealed. -, manufacturable explosives are required.

Claims (1)

Patent claims: 1. Composite explosives with explosive particles dispersed in a binding agent consisting of a rubberbuk material, marked by (A) 19 to 92% by weight of an explosive with a negative oxygen value, which under penthritol, Hexogen, Octogen, Tetryl and TNT is selected, and (B) 8 to 50% by weight of a reaction product of a carboxyl group-containing polybutadiene with a polyvalent epoxy compound in a stoichiometric ratio of epoxy groups to carboxyl groups of 0.8 to 13 as binder