US3776787A - Granular propellant containing kno{11 {11 and unsaturated ester - Google Patents
Granular propellant containing kno{11 {11 and unsaturated ester Download PDFInfo
- Publication number
- US3776787A US3776787A US00304948A US3776787DA US3776787A US 3776787 A US3776787 A US 3776787A US 00304948 A US00304948 A US 00304948A US 3776787D A US3776787D A US 3776787DA US 3776787 A US3776787 A US 3776787A
- Authority
- US
- United States
- Prior art keywords
- propellant
- ester
- acid
- glycol
- unsaturated
- 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.)
- Expired - Lifetime
Links
- 239000003380 propellant Substances 0.000 title claims abstract description 55
- 150000002148 esters Chemical class 0.000 title claims abstract description 35
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000004323 potassium nitrate Substances 0.000 claims abstract description 14
- 235000010333 potassium nitrate Nutrition 0.000 claims abstract description 14
- 125000004185 ester group Chemical group 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 125000004432 carbon atom Chemical group C* 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 6
- XXROGKLTLUQVRX-UHFFFAOYSA-N allyl alcohol Chemical compound OCC=C XXROGKLTLUQVRX-UHFFFAOYSA-N 0.000 claims description 6
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 claims description 6
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims description 6
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 5
- LRZPQLZONWIQOJ-UHFFFAOYSA-N 10-(2-methylprop-2-enoyloxy)decyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCCCCCCCCCOC(=O)C(C)=C LRZPQLZONWIQOJ-UHFFFAOYSA-N 0.000 claims description 4
- DBCAQXHNJOFNGC-UHFFFAOYSA-N 4-bromo-1,1,1-trifluorobutane Chemical compound FC(F)(F)CCCBr DBCAQXHNJOFNGC-UHFFFAOYSA-N 0.000 claims description 4
- UWHCKJMYHZGTIT-UHFFFAOYSA-N Tetraethylene glycol, Natural products OCCOCCOCCOCCO UWHCKJMYHZGTIT-UHFFFAOYSA-N 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- STVZJERGLQHEKB-UHFFFAOYSA-N ethylene glycol dimethacrylate Substances CC(=C)C(=O)OCCOC(=O)C(C)=C STVZJERGLQHEKB-UHFFFAOYSA-N 0.000 claims description 4
- 150000005846 sugar alcohols Polymers 0.000 claims description 4
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 claims description 4
- ZDQNWDNMNKSMHI-UHFFFAOYSA-N 1-[2-(2-prop-2-enoyloxypropoxy)propoxy]propan-2-yl prop-2-enoate Chemical compound C=CC(=O)OC(C)COC(C)COCC(C)OC(=O)C=C ZDQNWDNMNKSMHI-UHFFFAOYSA-N 0.000 claims description 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 3
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 3
- LCZVSXRMYJUNFX-UHFFFAOYSA-N 2-[2-(2-hydroxypropoxy)propoxy]propan-1-ol Chemical compound CC(O)COC(C)COC(C)CO LCZVSXRMYJUNFX-UHFFFAOYSA-N 0.000 claims description 3
- HWSSEYVMGDIFMH-UHFFFAOYSA-N 2-[2-[2-(2-methylprop-2-enoyloxy)ethoxy]ethoxy]ethyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCOCCOCCOC(=O)C(C)=C HWSSEYVMGDIFMH-UHFFFAOYSA-N 0.000 claims description 3
- LTHJXDSHSVNJKG-UHFFFAOYSA-N 2-[2-[2-[2-(2-methylprop-2-enoyloxy)ethoxy]ethoxy]ethoxy]ethyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCOCCOCCOCCOC(=O)C(C)=C LTHJXDSHSVNJKG-UHFFFAOYSA-N 0.000 claims description 3
- KHAHWKLZGBIAKT-UHFFFAOYSA-N 4-(4-methylpyrimidin-2-yl)benzaldehyde Chemical compound CC1=CC=NC(C=2C=CC(C=O)=CC=2)=N1 KHAHWKLZGBIAKT-UHFFFAOYSA-N 0.000 claims description 3
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 3
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 3
- ZPOLOEWJWXZUSP-AATRIKPKSA-N bis(prop-2-enyl) (e)-but-2-enedioate Chemical compound C=CCOC(=O)\C=C\C(=O)OCC=C ZPOLOEWJWXZUSP-AATRIKPKSA-N 0.000 claims description 3
- ZPOLOEWJWXZUSP-WAYWQWQTSA-N bis(prop-2-enyl) (z)-but-2-enedioate Chemical compound C=CCOC(=O)\C=C/C(=O)OCC=C ZPOLOEWJWXZUSP-WAYWQWQTSA-N 0.000 claims description 3
- FOTKYAAJKYLFFN-UHFFFAOYSA-N decane-1,10-diol Chemical compound OCCCCCCCCCCO FOTKYAAJKYLFFN-UHFFFAOYSA-N 0.000 claims description 3
- 239000001530 fumaric acid Substances 0.000 claims description 3
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 claims description 3
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 claims description 3
- 239000011976 maleic acid Substances 0.000 claims description 3
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 claims description 3
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 3
- 150000003112 potassium compounds Chemical class 0.000 claims description 3
- MYWOJODOMFBVCB-UHFFFAOYSA-N 1,2,6-trimethylphenanthrene Chemical compound CC1=CC=C2C3=CC(C)=CC=C3C=CC2=C1C MYWOJODOMFBVCB-UHFFFAOYSA-N 0.000 claims description 2
- FIHBHSQYSYVZQE-UHFFFAOYSA-N 6-prop-2-enoyloxyhexyl prop-2-enoate Chemical compound C=CC(=O)OCCCCCCOC(=O)C=C FIHBHSQYSYVZQE-UHFFFAOYSA-N 0.000 claims description 2
- VVYDVQWJZWRVPE-UHFFFAOYSA-L dimethyltin(2+);diiodide Chemical compound C[Sn](C)(I)I VVYDVQWJZWRVPE-UHFFFAOYSA-L 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 230000035515 penetration Effects 0.000 claims description 2
- 238000010793 Steam injection (oil industry) Methods 0.000 claims 1
- 229920006395 saturated elastomer Polymers 0.000 abstract description 2
- 239000000843 powder Substances 0.000 description 6
- 239000000020 Nitrocellulose Substances 0.000 description 4
- 229920001220 nitrocellulos Polymers 0.000 description 4
- ADCBKYIHQQCFHE-UHFFFAOYSA-N 1,3-dimethyl-1,3-diphenylurea Chemical compound C=1C=CC=CC=1N(C)C(=O)N(C)C1=CC=CC=C1 ADCBKYIHQQCFHE-UHFFFAOYSA-N 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 2
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- -1 for example Chemical compound 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 2
- 229910052939 potassium sulfate Inorganic materials 0.000 description 2
- 239000001120 potassium sulphate Substances 0.000 description 2
- 235000011151 potassium sulphates Nutrition 0.000 description 2
- SKFYTVYMYJCRET-UHFFFAOYSA-J potassium;tetrafluoroalumanuide Chemical compound [F-].[F-].[F-].[F-].[Al+3].[K+] SKFYTVYMYJCRET-UHFFFAOYSA-J 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- DYSXLQBUUOPLBB-UHFFFAOYSA-N 2,3-dinitrotoluene Chemical compound CC1=CC=CC([N+]([O-])=O)=C1[N+]([O-])=O DYSXLQBUUOPLBB-UHFFFAOYSA-N 0.000 description 1
- 229920004439 Aclar® Polymers 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- 239000004429 Calibre Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004265 EU approved glazing agent Substances 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 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 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000005023 polychlorotrifluoroethylene (PCTFE) polymer Substances 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance 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
- 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
- C06B45/30—Compositions or products which are defined by structure or arrangement of component of product comprising a coated component the component base containing an inorganic explosive or an inorganic thermic component
- C06B45/32—Compositions or products which are defined by structure or arrangement of component of product comprising a coated component the component base containing an inorganic explosive or an inorganic thermic component the coating containing an organic compound
Definitions
- Granular propellants for small arms are usually based on nitrocellulose, and may contain, in addition to nitrocellulose, other energetic constituents, stabilisers, glazing agents and such common ingredients. They also usually contain a surface moderant applied to the surface of the grains, the moderant being in greater contion towards the interior of the grain.
- the surface moderants usually employed include methyl centralite (sym-dimethyl diphenyl urea), ethyl centralite, dibutyl phthalate and dinitrotoluene. It is also usual for the propellant to contain a potassium salt, for example, potassium sulphate, to suppress muzzle flash.
- a potassium salt for example, potassium sulphate
- the use of these unsaturated esters in propellants not containing potassium nitrate gives a slight increase in bulk density but no improvement in ballistic efficiency.
- the incorporation ofpotassium nitrate into propellants coated with conventional surface moderant, for example methyl centralite gives a small increase in ballistic efficiency but the effect is offset by a reduction in bulk density which restricts the amount of propellant which can be loaded into a given cartridge.
- ballistic efficiency means the ratio of the kinetic energy of the projectile to the propellant charge weight.
- Preferred esters are those having eight to 20 carbon atoms and preferably they are derived from an alcohol having two to 10 carbon atoms and an acid having three to 10 carbon atoms.
- the ester may, for example, be derived from a polyhydric alcohol and an unsaturated carboxylic acid or from an unsaturated monohydric alcohol and a polybasiccarboxylic acid.
- Convenient polyhydric alcohols include ethylene glycol, triethylene glycol, tetraethylene glycol, hexamethylene glycol, decamethylene glycol,
- a convenient unsaturated monohydric alcohol is allyl alcohol.
- Convenient unsaturated monobasic carboxylic acids include acrylic acid and methacrylic acid and convenient dibasic acids include fumaric acid, maleic acid, itaconic acid and sebacic acid.
- Preferred unsaturated esters include ethylene glycol dimethacrylate, triethylene glycol dimethacrylate, tetraethylene glycol dimethacrylate, decamethylene glycol dimethacrylate, hexamethylene glycol diacrylate, tripropylene glycol diacrylate, pentaerythritol tetraacrylate, diallyl sebacate, diallyl fumarate, diallyl maleate and diallyl itaconate.
- triethylene glycol dimethacrylate is preferred as it is readily obtainable in stable form, has low vapour pressure and is easy to apply to the propellant grains.
- the unsaturated ester preferably constitutes l to 4 percent by weight of the total propellant composition and the potassium nitrate preferably constitutes 0.4 to 1.6 percent by weight of the total composition.
- the surface moderant may be applied in solution to the surface of the propellant grains but we have found that the concentrated moderant can be advantageously used.
- Penetration of the moderant into the interior of the propellant grains is effected by heating and the heat may advantageously be supplied by injecting steam or mixing hot water with the grains.
- the moderant and grains are mixed by stirring or tumbling, and heated by injection of steam followed by steeping in hot water at 60 to C and drying.
- This water treatment leaches out part of the potassium nitrate originally present in the propellant grains and, if a high potassium content is required in the final surface moderated grain, for example to reduce muzzle flash, a water insoluble potassium compound, for example potassium aluminium fluoride, may be advantageously added to the base composition.
- the improved ballistic efficiency of the surface moderated propellants of the invention compared to surface moderated propellants of the prior art can be realised by varying the quantity of the surface moderant to obtain an increase in projectile velocity for a given powder charge and firing chamber pressure, a reduced charge weight required for a given projectile velocity at a given chamber pressure or a reduced chamber pressure for a given charge weight producing a given projectile velocity.
- propellants are as good in all other respects as surface moderated propellants of the prior art, for example, in bulk density, ballistic stability, ignitability, and high and sub-zero temperature performance.
- the ballistic efficiency is not directly related to the moderating effectiveness of the surface moderant and in order to achieve the improvement in ballistic efficiency it may be necessary to use a somewhat higher weight proportion of moderant than was used in compositions of the prior art.
- the higher proportion of moderant is beneficial in that it reduces the heat of explosion and reduces barrel erosion.
- the invention is further illustrated by the following Examples wherein all parts and percentages are given ted through a piston. From a series of tests the charge weight of each powder (and also the convenient proportion of surface moderant) to give a mean maximum chamber pressure of 20 tons/square inch was deterby weight. 5 mined and the velocity of the bullet using this charge Examples 1, 2 and 3 are not in accordance with the weight was measured by recording the time for the bulinvention and are given for comparison. let to pass between photoelectric detectors placed respectively at 3 and 12 metres from the muzzle of the EXAMPLES barrel.
- the ballistic efficiencies in Table 2 are related to the propellant dough was prepared from the ingredients inprior art powder of Example 1. It is evident from these dicated in Table l and the dough was formed into tuburesults that the surface moderatedpowders made in aclar grains by extrusion through a die of internal diamecordance with this invention using unsaturated esters as ter 1.27 mm provided with a central pin of diameter surface moderants have higher ballistic efficiencies 0.35 mm, and cutting to lengths of 1.27 mm. The so l- 15 than the prior art powders.
- the tubular grains thus formed had an annulus thickness of approximately 0.33 mm and an outside diameter of approximately 0.84 mm.
- a surface moderated granular propellant containing potassium nitrate and, as a surface moderant, an unsaturated ester having at least two ester groups and at least two C C groups in its molecule.
- a propellant as claimed in claim 1 wherein the ester is one having eight to 20 carbon atoms and is derived from an alcohol having two to 10 carbon atoms and an acid having three to 10 carbon atoms.
- ester is an ester of a compound selected from the group consisting of ethylene glycol, triethylene glycol, tetraethylene glycol, hexamethylene glycol, decamethylene glycol, tripropylene glycol, pentaerythritol and allyl alcohol and a compound selected from the group consisting of acrylic acid, methacrylic acid, fumaric acid, maleic acid, itaconic acid and sebacic acid.
- ester comprises ethylene glycol dimethacrylate, triethylene glycol dimethacrylate, tetraethylene glycol dimethacrylate, decamethylene glycol dimethacrylate,
- a propellant as claimed in claim 1 containing a water insoluble potassium compound.
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Organic Chemistry (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Lubricants (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Ceramic Products (AREA)
- Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5445371A GB1357206A (en) | 1971-11-23 | 1971-11-23 | Surface moderated propellant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3776787A true US3776787A (en) | 1973-12-04 |
Family
ID=10471045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US00304948A Expired - Lifetime US3776787A (en) | 1971-11-23 | 1972-11-09 | Granular propellant containing kno{11 {11 and unsaturated ester |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US3776787A (en:Method) |
| AU (1) | AU467395B2 (en:Method) |
| BE (1) | BE791483A (en:Method) |
| CA (1) | CA981469A (en:Method) |
| CH (1) | CH574375A5 (en:Method) |
| FR (1) | FR2160972B1 (en:Method) |
| GB (1) | GB1357206A (en:Method) |
| NL (1) | NL7215437A (en:Method) |
| NO (1) | NO130111B (en:Method) |
| ZA (1) | ZA727542B (en:Method) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2481265A1 (en:Method) * | 1980-04-28 | 1981-10-30 | Hercules Inc |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2495013C1 (ru) * | 2012-01-27 | 2013-10-10 | Федеральное казенное предприятие "Государственный научно-исследовательский институт химических продуктов" (ФКП "ГосНИИХП") | СФЕРИЧЕСКИЙ ПОРОХ ДЛЯ 7,62 мм ВИНТОВОЧНОГО ПАТРОНА |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3520742A (en) * | 1962-12-31 | 1970-07-14 | Aerojet General Co | Encapsulation of particulate nitronium oxidizer salts with polymerization of ethylenically unsaturated monomers |
| US3539377A (en) * | 1968-05-07 | 1970-11-10 | Us Army | Method for coating oxidizer particles with a polymer |
| US3551222A (en) * | 1967-03-06 | 1970-12-29 | Us Navy | Coated water soluble inorganic oxidizers |
-
0
- BE BE791483D patent/BE791483A/xx unknown
-
1971
- 1971-11-23 GB GB5445371A patent/GB1357206A/en not_active Expired
-
1972
- 1972-10-23 ZA ZA727542A patent/ZA727542B/xx unknown
- 1972-10-27 AU AU48266/72A patent/AU467395B2/en not_active Expired
- 1972-11-09 US US00304948A patent/US3776787A/en not_active Expired - Lifetime
- 1972-11-15 CA CA156,550A patent/CA981469A/en not_active Expired
- 1972-11-15 NL NL7215437A patent/NL7215437A/xx not_active Application Discontinuation
- 1972-11-22 NO NO724271A patent/NO130111B/no unknown
- 1972-11-22 FR FR7241525A patent/FR2160972B1/fr not_active Expired
- 1972-11-23 CH CH1704572A patent/CH574375A5/xx not_active IP Right Cessation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3520742A (en) * | 1962-12-31 | 1970-07-14 | Aerojet General Co | Encapsulation of particulate nitronium oxidizer salts with polymerization of ethylenically unsaturated monomers |
| US3551222A (en) * | 1967-03-06 | 1970-12-29 | Us Navy | Coated water soluble inorganic oxidizers |
| US3539377A (en) * | 1968-05-07 | 1970-11-10 | Us Army | Method for coating oxidizer particles with a polymer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2481265A1 (en:Method) * | 1980-04-28 | 1981-10-30 | Hercules Inc | |
| US4354884A (en) * | 1980-04-28 | 1982-10-19 | Hercules Incorporated | Process for preparing progressive burning propellant granules |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2160972B1 (en:Method) | 1977-04-08 |
| AU4826672A (en) | 1974-05-02 |
| NO130111B (en:Method) | 1974-07-08 |
| DE2257330B2 (de) | 1975-12-04 |
| CA981469A (en) | 1976-01-13 |
| FR2160972A1 (en:Method) | 1973-07-06 |
| NL7215437A (en:Method) | 1973-05-25 |
| AU467395B2 (en) | 1975-11-27 |
| ZA727542B (en) | 1973-07-25 |
| GB1357206A (en) | 1974-06-19 |
| DE2257330A1 (de) | 1973-05-30 |
| BE791483A (fr) | 1973-05-16 |
| CH574375A5 (en:Method) | 1976-04-15 |
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