EP0424490A1 - Verfahren und vorrichtung zur herstellung eines dreibasigen treibladungspulvers. - Google Patents
Verfahren und vorrichtung zur herstellung eines dreibasigen treibladungspulvers.Info
- Publication number
- EP0424490A1 EP0424490A1 EP90906180A EP90906180A EP0424490A1 EP 0424490 A1 EP0424490 A1 EP 0424490A1 EP 90906180 A EP90906180 A EP 90906180A EP 90906180 A EP90906180 A EP 90906180A EP 0424490 A1 EP0424490 A1 EP 0424490A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- extruder
- solvent
- fed
- crystalline energy
- powder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000843 powder Substances 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 41
- 239000004135 Bone phosphate Substances 0.000 title 1
- 239000002904 solvent Substances 0.000 claims abstract description 35
- 239000000020 Nitrocellulose Substances 0.000 claims abstract description 15
- 229920001220 nitrocellulos Polymers 0.000 claims abstract description 15
- 239000013067 intermediate product Substances 0.000 claims abstract description 13
- 239000008187 granular material Substances 0.000 claims description 28
- 238000004898 kneading Methods 0.000 claims description 24
- 239000003380 propellant Substances 0.000 claims description 16
- 239000002360 explosive Substances 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000000654 additive Substances 0.000 claims description 10
- 238000005453 pelletization Methods 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 15
- SNIOPGDIGTZGOP-UHFFFAOYSA-N Nitroglycerin Chemical compound [O-][N+](=O)OCC(O[N+]([O-])=O)CO[N+]([O-])=O SNIOPGDIGTZGOP-UHFFFAOYSA-N 0.000 abstract description 4
- 239000000006 Nitroglycerin Substances 0.000 abstract description 4
- 229960003711 glyceryl trinitrate Drugs 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 12
- 239000002994 raw material Substances 0.000 description 10
- 239000000203 mixture Substances 0.000 description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
- 238000001035 drying Methods 0.000 description 5
- IDCPFAYURAQKDZ-UHFFFAOYSA-N 1-nitroguanidine Chemical compound NC(=N)N[N+]([O-])=O IDCPFAYURAQKDZ-UHFFFAOYSA-N 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- XTFIVUDBNACUBN-UHFFFAOYSA-N 1,3,5-trinitro-1,3,5-triazinane Chemical compound [O-][N+](=O)N1CN([N+]([O-])=O)CN([N+]([O-])=O)C1 XTFIVUDBNACUBN-UHFFFAOYSA-N 0.000 description 2
- 239000000028 HMX Substances 0.000 description 2
- TZRXHJWUDPFEEY-UHFFFAOYSA-N Pentaerythritol Tetranitrate Chemical compound [O-][N+](=O)OCC(CO[N+]([O-])=O)(CO[N+]([O-])=O)CO[N+]([O-])=O TZRXHJWUDPFEEY-UHFFFAOYSA-N 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- PZIMIYVOZBTARW-UHFFFAOYSA-N centralite Chemical compound C=1C=CC=CC=1N(CC)C(=O)N(CC)C1=CC=CC=C1 PZIMIYVOZBTARW-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000006396 nitration reaction Methods 0.000 description 2
- UZGLIIJVICEWHF-UHFFFAOYSA-N octogen Chemical compound [O-][N+](=O)N1CN([N+]([O-])=O)CN([N+]([O-])=O)CN([N+]([O-])=O)C1 UZGLIIJVICEWHF-UHFFFAOYSA-N 0.000 description 2
- GWEHVDNNLFDJLR-UHFFFAOYSA-N 1,3-diphenylurea Chemical compound C=1C=CC=CC=1NC(=O)NC1=CC=CC=C1 GWEHVDNNLFDJLR-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910001610 cryolite Inorganic materials 0.000 description 1
- LYAGTVMJGHTIDH-UHFFFAOYSA-N diethylene glycol dinitrate Chemical compound [O-][N+](=O)OCCOCCO[N+]([O-])=O LYAGTVMJGHTIDH-UHFFFAOYSA-N 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000002468 gelatinator Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
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
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B21/00—Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
- C06B21/0033—Shaping the mixture
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B21/00—Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
- C06B21/0033—Shaping the mixture
- C06B21/0075—Shaping the mixture by extrusion
Definitions
- the invention relates to a method for producing a three-base propellant charge powder from nitrocellulose, explosive oil and a third, crystalline energy carrier and additives using a solvent, and to an apparatus for carrying out this method.
- the three-base propellant charge powders are also known as "cold" powders. Compared to the usual, "hot” powders, which do not contain a third, crystalline energy carrier, they have the advantage of greater pipe protection.
- the explosive oil acts as a gelatinator for the nitrocellulose.
- the amount of the explosive oil is often not sufficient for complete gelatinization of the nitrocellulose and a uniform, homogeneous incorporation of the third crystalline energy carrier into the powder mass, especially if the proportion of the crystalline energy carrier is high.
- three-base propellant powder is produced using an organic solvent as a gelatinization aid.
- the solvent for example a mixture of acetone and alcohol, is added when the raw powder mass is mixed and is finally removed from the finished powder.
- a continuously executable process for the production of three-base propellant charge powder with solvent has also become known (DE-PS 24 61 646 and US-PS 4,051,207).
- a solvent-moist mixture of all components of the propellant charge powder is preplasticized on an open, continuously operating kneader, ie partially gelatinized.
- the mass usually passes through the kneader several times.
- the pre-plasticized, solvent-containing mass is then gelatinized in an extruder and converted into granulate form.
- the extruder should also be used several times be run through.
- the granules are then pressed in a further extruder to give the desired powder strands, which are then cut to length and dried.
- This method is very complex in terms of the necessary mechanical equipment and in the process management, ie the setting and monitoring of the process parameters.
- the invention is based on the object of specifying an improved, continuously executable method of the type mentioned at the outset which, in particular, requires less mechanical effort than previously and the course of which is easily adjustable and controllable.
- a device for performing this method is to be specified.
- this object is achieved according to the invention in that water-moist raw material premixed from water-moist nitrocellulose and explosive oil is gelatinized on a continuously working, open kneading device and dried in the process, the kneading process being set such that that the raw mass when leaving the kneading device is converted into a finished gelatinized intermediate product with a residual water content of less than 3%, that the intermediate product is granulated when leaving the kneading device, that the granulated intermediate product (granulate) and the third crystalline energy source and the solvent is fed to a continuous, closed extruder and homogenized in it by kneading and extruded into solvent-moist powder strands, and that the solvent-moist th powder strands are cut to length and dried.
- Explosive oil in the context of this application is to be understood as the explosive oils usually used for propellant charge powder, in particular nitroglycerin and diglycol dinitrate, as well as mixtures of the aforementioned explosive oils.
- the third, crystalline energy source is usually nitroguanidine (Nigu; NQ).
- nitroguanidine Nigu; NQ
- RDX hexogen
- HMX octogen
- PETN nitropenta
- the additives are those customary in powder production, in particular plasticizers and stabilizers, which are present in the powder mixture in relatively small proportions by weight.
- Drying the powder strands means any measure customary in powder production by means of which the solvent can be virtually completely removed from the powder strands.
- the process according to the invention is characterized in that not all components of the three-base propellant charge powder are mixed with one another from the outset. Rather, initially only nitrocellulose and explosive oil, which are premixed to a water-moist raw mass, are used. in a single pass on an open kneading device without the use of solvents, a finished gelatinized intermediate product. This gelatinized and therefore dry intermediate product is granulated and fed as granules together with the third, crystalline energy source to a closed extruder, the solvent being added only now. Kneading in a closed extruder creates a homogeneous, doughy mass in which the crystalline energy source is uniformly and finely distributed. This solvent-moist mass is extruded from the kneading into powder strands in the same extruder, which are then cut to length and dried in the usual manner.
- the method according to the invention can be carried out continuously.
- only two essential machines are required, namely the open kneading device and the closed extruder, in addition a pelletizing device downstream of the open kneading device and a means for transporting the pellets to the extruder.
- the procedure is simple. Each machine only needs to be run once. Even if the formulations are changed frequently, it is not difficult to adjust the respective process parameters in a new and correct manner to one another and to monitor their compliance.
- An advantage in this connection is the fact that the first part of the process, the processing of the raw mass on the open kneading device, is hardly different from the usual production of two-base propellant charge powders, so that the routines and experience of this are to this extent Production can be used. This also guarantees a high level of security. Until the gelatinization of the nitrocellulose by the Explosive oil is particularly at high risk of self-ignition of the powdery masses in each production, for example due to the separation of explosive oil from the raw mass. In this phase, however, the method according to the invention only works on the open kneading device, where the consequences of any self-ignition are far more harmless than in a closed processing device, for example an extruder.
- the risk of explosion is significantly reduced by the addition of the solvent in the method according to the invention.
- the process according to the invention manages with a significantly smaller amount as a solvent in relation to the production amount than the usual production process and the losses of solvent during drying of the extruded powder strands are correspondingly lower, which increases the economy and makes a contribution to environmental protection. For the same reason, the drying effort compared to the usual method is considerably lower.
- a shear roller mill which is known per se for homogenizing and plasticizing non-explosive thermoplastic materials, for example plastics, is preferably used as the open kneading device (EP-A 0 148 966 or US Pat. No. 4,605,309). With regard to the details of such a shear roller mill, reference is expressly made to the two publications mentioned.
- the shear roll mill has two rolls which can be driven independently of one another, between which there is an adjustable roll nip.
- the rollers are provided with grooves running in a spiral, which ensure that the processed material is securely drawn into the gap and at the same time produce an axial transport movement in the roll gap from one end of the pair of rolls to the other end.
- the water-moist raw mass is continuously applied to the two rollers of the shear roller mill at one end and then gradually transported to the other end of the two rollers with kneading and intensive shearing.
- the raw material arriving at the other end is then gelatinized.
- the water In order to enable gelatinization, the water must be removed from the raw mass. This is done by squeezing in the roller gap and also by evaporating the water, since the rollers of the shear roller mill are heated.
- the raw powder mass fed to the shear roller mill preferably has a water moisture content of 20% to 30%. The removal of this water and thus the increasing gelatinization of the raw material takes place gradually during the migration of the raw material along the rollers.
- the process can be controlled so that the raw mass at the discharge end of the pair of rollers is practically dry and thus completely gelatinized, which means that the residual water content is less than 3% and preferably less than 1%, for example 0.5%.
- the finished, greased raw mass is located on one of the two rollers and can be removed there continuously with simultaneous pelletizing, for example with a pelletizing head.
- the process according to the invention also has the advantage that the recipes can be adhered to very precisely and the manufacture of various propellant powders can therefore be reproduced exactly because Both the intermediate product due to its granular form and the third crystalline energy source can both be fed to the extruder in precisely metered form, for example with the aid of suitable metering devices.
- the extruder requires a first filling opening in the working direction for the granulate, then an opening for the supply of the solvent and then an opening for the supply of the crystalline energy carrier under pressure, which is technically somewhat more complex.
- the additives can already be fed to the kneading device together with the premixed water-moist raw material.
- the joint application of both options can be done in In individual cases, ie depending on the particular recipe, it may be expedient, for example in such a way that certain additives are only fed to the kneading device and the remaining additives are fed to the extruder.
- the raw mass fed to the shear roller usually comprises 40% to 60% and preferably 45% to 55% nitrocellulose.
- the crystalline energy carrier is metered into the extruder in an amount of 10% to 55% and preferably in an amount between 40% and 55% of the granules supplied.
- the solvent is expediently fed to the extruder in an amount of 60 to 130 grams per kilogram of the solids supplied (granules + crystalline energy carrier). This means a saving in solvent of 30% to 60% compared to conventional manufacturing processes.
- solvents are Alcohol or acetone in question. The selection depends, among other things. on the degree of nitration of the nitrocellulose used. The higher the degree of nitration, the more or the sharper the solvent is generally necessary.
- a device for carrying out the method according to the invention is characterized by an open shear roller mill, a downstream pelletizing device, a transport device and a closed extruder.
- the device shown comprises an open shear roller mill 1, as is known, for example, from US Pat. No. 4,605,309.
- the shear roller mill has two rollers which can be driven independently of one another, between which a roller gap is formed.
- the pre-mixed, water-moist raw powder mixture of water-moist nitrocellulose and explosive oil is fed to the shear roller mill.
- the feed is indicated in the drawing by a feed hopper and an arrow.
- the raw mass is kneaded in the shear roller mill and thereby gelatinized while removing the water.
- a pelletizing device 2 is assigned to this end of the two rolls, with which the gelatinized raw material or the intermediate product is removed from one of the two rolls and is thereby pelletized.
- the granulated intermediate product reaches the input opening 5 of a closed extruder 4 by means of a transport device 3.
- the third, crystalline energy carrier is fed to the same input opening 5.
- the granules and the third energy carrier are expediently supplied via a metering device (not shown in any more detail).
- an addition device 6 is provided on the extruder 4 for the addition of solvent.
- a further filling opening 7 can be provided behind the feed device 6, - n -
- the extruder 4 is provided in the usual way with one or two screws 8 which are rotatably mounted in the housing of the extruder and are only indicated schematically here.
- a die not shown
- the material is extruded into powder strands.
- the solvent e.g. Alcohol
- This solvent-containing mass is finally passed through the die of the extruder e.g. extruded into a 7-hole pul strand
- the powder strands emerging from the extruder are cut to length in a conventional manner, not shown, and suitably, e.g. in a drying facility, freed from the solvent.
- the two rollers of the shear roller mill can be heated to temperatures between 80 ° C and 120 ° C.
- the adjustable speed range of the two rollers is between 40 and 70 rpm.
- the gap between the two rollers is usually set to less than 2 mm .
- the granulating device 2 delivers a granulate in the size of 3 to 6 mm.
- the extruder 4 is typically designed with a length to diameter ratio of 20 to 24.
- the tem- The temperature inside is between 20 ° C and 50 ° C.
- the screw speed is adjustable between 30 and 80 rpm.
- the temperature of one roller of the shear roller mill is 90 ° C and its speed is 68 rpm.
- the temperature of the second roller is 80 ° C and its speed is 58 rpm.
- the average throughput on the shear roller mill is 52 kg of water-moist mass per hour.
- the finished gelatinized raw material, the intermediate product, on the granulating device 2 has a water content of less than 0.5%.
- the dry granules and nitroguanidine as the third energy source are metered into the extruder in a weight ratio of 45% granules and 55% nitroguanidine, where they are homogenized with the aid of solvents and extruded into a 7-hole powder.
- the throughput here is 40 kilograms per hour at a screw speed of 60 rpm and an extruder head pressure of 23 bar.
- additive powder a mixed raw material consisting of 62% nitrocellulose, 37% nitroglycerin, 0.3% centralite, 0.5% acardite, 0.1% magnesium oxide and 0.1% graphite with an initial water content of 28% processed.
- the temperature of the first roller is 110 ° C and its speed is 50 rpm, the temperature ture of the second roller 90 C and its speed 45 rpm. This results in a throughput of 42 kilograms of dry mass per hour with a water content of approx. 0.7% at the pelletizer.
- the granules and nitroguanidine are metered into the extruder in a weight ratio of 60%: 40% and processed there with acetone as solvent in an amount of 3 liters per hour and extruded into a 7-hole bulk powder.
- the screw speed is 40 rpm
- the head pressure is 27 bar
- the head temperature is 48 ° C.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Medicinal Preparation (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Glanulating (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Formation And Processing Of Food Products (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3915437 | 1989-05-11 | ||
DE3915437 | 1989-05-11 | ||
PCT/EP1990/000616 WO1990013528A2 (de) | 1989-05-11 | 1990-04-17 | Verfahren und vorrichtung zur herstellung eines dreibasigen treibladungspulvers |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0424490A1 true EP0424490A1 (de) | 1991-05-02 |
EP0424490B1 EP0424490B1 (de) | 1995-03-08 |
Family
ID=6380472
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90906180A Revoked EP0424490B1 (de) | 1989-05-11 | 1990-04-17 | Verfahren und vorrichtung zur herstellung eines dreibasigen treibladungspulvers |
Country Status (19)
Country | Link |
---|---|
US (1) | US5266242A (de) |
EP (1) | EP0424490B1 (de) |
JP (1) | JPH0777992B2 (de) |
KR (1) | KR940004634B1 (de) |
CN (1) | CN1042324C (de) |
AR (1) | AR242765A1 (de) |
AT (1) | ATE119512T1 (de) |
AU (1) | AU632562B2 (de) |
BR (1) | BR9006751A (de) |
CA (1) | CA2031517C (de) |
DE (1) | DE59008631D1 (de) |
EG (1) | EG21067A (de) |
FI (1) | FI97802C (de) |
GR (1) | GR1003566B (de) |
IL (1) | IL94193A (de) |
NO (1) | NO175936C (de) |
PT (1) | PT94013A (de) |
WO (1) | WO1990013528A2 (de) |
ZA (1) | ZA903514B (de) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE501223C2 (sv) * | 1992-08-28 | 1994-12-12 | Bofors Explosives Ab | Sätt och anordning för att framställa pyrotekniska satser genom valsning |
US5487851A (en) * | 1993-12-20 | 1996-01-30 | Thiokol Corporation | Composite gun propellant processing technique |
FR2723086B1 (fr) * | 1994-07-29 | 1996-09-13 | Poudres & Explosifs Ste Nale | Procede continu de fabrication sans solvant de produits pyrotechniques composites |
WO1998042640A1 (en) | 1997-03-21 | 1998-10-01 | Cordant Technologies, Inc. | Method for manufacture of black powder and black powder substitute |
EP1031547B1 (de) | 1999-02-23 | 2005-06-29 | General Dynamics Ordnance and Tactical Systems, Inc. | Perforierter Treibstoff und Verfahren zu seiner Herstellung |
US6315930B1 (en) | 1999-09-24 | 2001-11-13 | Autoliv Asp, Inc. | Method for making a propellant having a relatively low burn rate exponent and high gas yield for use in a vehicle inflator |
DE102010020776B4 (de) | 2010-05-18 | 2015-03-05 | Diehl Bgt Defence Gmbh & Co. Kg | Treibladung und Verfahren zu ihrer Herstellung |
CN102826942B (zh) * | 2012-09-18 | 2013-07-31 | 湖南省浏阳金生花炮有限公司 | 一种无烟烟花发射药 |
US9539752B2 (en) * | 2013-08-09 | 2017-01-10 | General Dynamics Ordnance and Tactical Systems—Canada Valleyfield, Inc. | Continuous celluloid twin screw extrusion process |
CN103980071A (zh) * | 2014-05-06 | 2014-08-13 | 西安近代化学研究所 | 一种用于炸药捏合碾片的滚筒装置 |
JP6472628B2 (ja) * | 2014-09-30 | 2019-02-20 | カーリットホールディングス株式会社 | 液体推進薬の製造方法 |
CN104950056B (zh) * | 2015-07-14 | 2017-03-01 | 西安近代化学研究所 | 一种叠氮硝胺吸收药样品制备方法 |
CN105367360B (zh) * | 2015-12-28 | 2017-09-29 | 中国科学院沈阳自动化研究所 | 一种制备炮弹发射药自动上料装置 |
CN110540484B (zh) * | 2019-10-14 | 2021-06-15 | 北方化学工业股份有限公司 | 一种烟花用硝化棉连续制备工艺 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3086896A (en) * | 1961-01-19 | 1963-04-23 | Russell L Trask | Nitroguanidine propellant composition and process of preparation |
DE2316538C3 (de) * | 1973-04-03 | 1982-05-06 | Dynamit Nobel Ag, 5210 Troisdorf | Verfahren zur Herstellung von Gudol- Pulver |
US4076773A (en) * | 1974-11-25 | 1978-02-28 | W. R. Grace & Co. | Process for prilling ammonium nitrate |
DE2461646C2 (de) * | 1974-12-27 | 1984-01-05 | Dynamit Nobel Ag, 5210 Troisdorf | Verfahren zur Herstellung von Treibladungspulvern |
DE2825567B1 (de) * | 1978-06-10 | 1979-11-15 | Dynamit Nobel Ag | Verfahren zur kontinuierlichen Herstellung von Explosivstoffgemischen |
DE2900020C2 (de) * | 1979-01-02 | 1982-12-09 | WNC-Nitrochemie GmbH, 8261 Aschau | Verfahren zur Herstellung eines mehrbasigen Treibladungspulvers |
NO144666C (no) * | 1980-02-29 | 1981-10-14 | Dyno Industrier As | Fremgangsmaate for fremstilling av aluminiumholdige hoeyenergisprengstoffblandinger |
DE3042697C2 (de) * | 1980-11-12 | 1986-02-20 | WNC-Nitrochemie GmbH, 8261 Aschau | Verfahren zum kontinuierlichen Herstellen einbasiger Pulver |
DE3242301A1 (de) * | 1982-11-16 | 1984-05-17 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München | Verfahren und vorrichtung zur herstellung ein- oder mehrbasiger treibladungspulver |
US4726919A (en) * | 1985-05-06 | 1988-02-23 | Morton Thiokol, Inc. | Method of preparing a non-feathering nitramine propellant |
US4650617A (en) * | 1985-06-26 | 1987-03-17 | Morton Thiokol Inc. | Solvent-free preparation of gun propellant formulations |
DE3532525A1 (de) * | 1985-09-12 | 1987-03-19 | Fraunhofer Ges Forschung | Dreibasiges treibladungspulver und verfahren zu seiner herstellung |
DE3635296C2 (de) * | 1986-10-16 | 1995-12-21 | Nitrochemie Gmbh | Verfahren zum Herstellen von Treibladungspulver |
-
1990
- 1990-04-17 AU AU54244/90A patent/AU632562B2/en not_active Ceased
- 1990-04-17 US US07/635,169 patent/US5266242A/en not_active Expired - Lifetime
- 1990-04-17 DE DE59008631T patent/DE59008631D1/de not_active Expired - Fee Related
- 1990-04-17 JP JP2505966A patent/JPH0777992B2/ja not_active Expired - Fee Related
- 1990-04-17 KR KR1019910700035A patent/KR940004634B1/ko not_active IP Right Cessation
- 1990-04-17 AT AT90906180T patent/ATE119512T1/de not_active IP Right Cessation
- 1990-04-17 WO PCT/EP1990/000616 patent/WO1990013528A2/de not_active Application Discontinuation
- 1990-04-17 BR BR909006751A patent/BR9006751A/pt not_active IP Right Cessation
- 1990-04-17 CA CA002031517A patent/CA2031517C/en not_active Expired - Fee Related
- 1990-04-17 EP EP90906180A patent/EP0424490B1/de not_active Revoked
- 1990-04-23 GR GR900100307A patent/GR1003566B/el not_active IP Right Cessation
- 1990-04-24 IL IL9419390A patent/IL94193A/en not_active IP Right Cessation
- 1990-05-02 AR AR90316761A patent/AR242765A1/es active
- 1990-05-09 ZA ZA903514A patent/ZA903514B/xx unknown
- 1990-05-09 EG EG27290A patent/EG21067A/xx active
- 1990-05-10 CN CN90102643A patent/CN1042324C/zh not_active Expired - Fee Related
- 1990-05-11 PT PT94013A patent/PT94013A/pt not_active Application Discontinuation
- 1990-12-28 FI FI906423A patent/FI97802C/fi not_active IP Right Cessation
-
1991
- 1991-01-11 NO NO910139A patent/NO175936C/no not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO9013528A2 * |
Also Published As
Publication number | Publication date |
---|---|
JPH0777992B2 (ja) | 1995-08-23 |
WO1990013528A3 (de) | 1990-12-27 |
FI906423A0 (fi) | 1990-12-28 |
KR940004634B1 (ko) | 1994-05-27 |
AU5424490A (en) | 1990-11-29 |
BR9006751A (pt) | 1991-08-06 |
ATE119512T1 (de) | 1995-03-15 |
NO175936C (no) | 1995-01-04 |
DE59008631D1 (de) | 1995-04-13 |
EG21067A (en) | 2000-10-31 |
NO175936B (no) | 1994-09-26 |
EP0424490B1 (de) | 1995-03-08 |
CN1042324C (zh) | 1999-03-03 |
GR900100307A (el) | 1991-10-10 |
FI97802C (fi) | 1997-02-25 |
AR242765A1 (es) | 1993-05-31 |
PT94013A (pt) | 1991-01-08 |
FI97802B (fi) | 1996-11-15 |
CA2031517C (en) | 1999-08-24 |
CA2031517A1 (en) | 1990-11-12 |
US5266242A (en) | 1993-11-30 |
CN1047072A (zh) | 1990-11-21 |
JPH03505199A (ja) | 1991-11-14 |
ZA903514B (en) | 1991-02-27 |
KR920701080A (ko) | 1992-08-11 |
AU632562B2 (en) | 1993-01-07 |
IL94193A (en) | 1994-11-28 |
NO910139D0 (no) | 1991-01-11 |
WO1990013528A2 (de) | 1990-11-15 |
IL94193A0 (en) | 1991-01-31 |
NO910139L (no) | 1991-01-11 |
GR1003566B (el) | 2001-04-10 |
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