US2643184A - Propellent charge for jet-propelled devices - Google Patents
Propellent charge for jet-propelled devices Download PDFInfo
- Publication number
- US2643184A US2643184A US518457A US51845744A US2643184A US 2643184 A US2643184 A US 2643184A US 518457 A US518457 A US 518457A US 51845744 A US51845744 A US 51845744A US 2643184 A US2643184 A US 2643184A
- Authority
- US
- United States
- Prior art keywords
- powder
- parts
- burning
- chlorinated rubber
- jet
- 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
- 239000000843 powder Substances 0.000 claims description 37
- 229920001971 elastomer Polymers 0.000 claims description 17
- 239000005060 rubber Substances 0.000 claims description 17
- 239000002904 solvent Substances 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 9
- 239000000049 pigment Substances 0.000 claims description 8
- 239000004014 plasticizer Substances 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 8
- 238000002485 combustion reaction Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 239000003380 propellant Substances 0.000 claims description 6
- 239000012260 resinous material Substances 0.000 claims description 6
- 238000002292 fluorescence lifetime imaging microscopy Methods 0.000 claims 1
- 239000004922 lacquer Substances 0.000 description 19
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 15
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Natural products CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 14
- 238000000576 coating method Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 4
- 229920000180 alkyd Polymers 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 239000008199 coating composition Substances 0.000 description 4
- XMWCXZJXESXBBY-UHFFFAOYSA-L manganese(ii) carbonate Chemical compound [Mn+2].[O-]C([O-])=O XMWCXZJXESXBBY-UHFFFAOYSA-L 0.000 description 4
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- GOJCZVPJCKEBQV-UHFFFAOYSA-N Butyl phthalyl butylglycolate Chemical compound CCCCOC(=O)COC(=O)C1=CC=CC=C1C(=O)OCCCC GOJCZVPJCKEBQV-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- YSMRWXYRXBRSND-UHFFFAOYSA-N TOTP Chemical compound CC1=CC=CC=C1OP(=O)(OC=1C(=CC=CC=1)C)OC1=CC=CC=C1C YSMRWXYRXBRSND-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 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
- FLKPEMZONWLCSK-UHFFFAOYSA-N diethyl phthalate Chemical compound CCOC(=O)C1=CC=CC=C1C(=O)OCC FLKPEMZONWLCSK-UHFFFAOYSA-N 0.000 description 2
- IPKKHRVROFYTEK-UHFFFAOYSA-N dipentyl phthalate Chemical compound CCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCC IPKKHRVROFYTEK-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 2
- ZDCHZHDOCCIZIY-UHFFFAOYSA-N phthalic acid;propane-1,2,3-triol Chemical compound OCC(O)CO.OC(=O)C1=CC=CC=C1C(O)=O ZDCHZHDOCCIZIY-UHFFFAOYSA-N 0.000 description 2
- 239000011343 solid material Substances 0.000 description 2
- 239000011877 solvent mixture Substances 0.000 description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 235000015842 Hesperis Nutrition 0.000 description 1
- 235000012633 Iberis amara Nutrition 0.000 description 1
- SNIOPGDIGTZGOP-UHFFFAOYSA-N Nitroglycerin Chemical compound [O-][N+](=O)OCC(O[N+]([O-])=O)CO[N+]([O-])=O SNIOPGDIGTZGOP-UHFFFAOYSA-N 0.000 description 1
- 239000000006 Nitroglycerin Substances 0.000 description 1
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 1
- DOOTYTYQINUNNV-UHFFFAOYSA-N Triethyl citrate Chemical compound CCOC(=O)CC(O)(C(=O)OCC)CC(=O)OCC DOOTYTYQINUNNV-UHFFFAOYSA-N 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- SLGWESQGEUXWJQ-UHFFFAOYSA-N formaldehyde;phenol Chemical compound O=C.OC1=CC=CC=C1 SLGWESQGEUXWJQ-UHFFFAOYSA-N 0.000 description 1
- 229960003711 glyceryl trinitrate Drugs 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- SXUWUWKJIWJESU-UHFFFAOYSA-N methyl n'-cyano-n-(6,11-dihydro-5h-benzo[c][1]benzazepin-6-ylmethyl)-n-methylcarbamimidothioate;hydrochloride Chemical compound Cl.N#CN=C(SC)N(C)CC1NC2=CC=CC=C2CC2=CC=CC=C12 SXUWUWKJIWJESU-UHFFFAOYSA-N 0.000 description 1
- 239000000025 natural resin Substances 0.000 description 1
- LVIYYTJTOKJJOC-UHFFFAOYSA-N nickel phthalocyanine Chemical compound [Ni+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 LVIYYTJTOKJJOC-UHFFFAOYSA-N 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical class OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000001069 triethyl citrate Substances 0.000 description 1
- VMYFZRTXGLUXMZ-UHFFFAOYSA-N triethyl citrate Natural products CCOC(=O)C(O)(C(=O)OCC)C(=O)OCC VMYFZRTXGLUXMZ-UHFFFAOYSA-N 0.000 description 1
- 235000013769 triethyl citrate Nutrition 0.000 description 1
- NFMWFGXCDDYTEG-UHFFFAOYSA-N trimagnesium;diborate Chemical compound [Mg+2].[Mg+2].[Mg+2].[O-]B([O-])[O-].[O-]B([O-])[O-] NFMWFGXCDDYTEG-UHFFFAOYSA-N 0.000 description 1
- 239000011787 zinc oxide 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
- C06B45/12—Compositions or products which are defined by structure or arrangement of component of product having contiguous layers or zones
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L5/00—Solid fuels
Definitions
- Patented June 23, 1953 1 UNITED NT OFFICE.
- lacquers are composed of chlorinated rubber, plasticizer, pigment, solvent, and resinous material. Table I shows preferred formulae for lacquers which have been found suitable as a flame-resistant coating composition for large smokeless powder grains:
- the chlorinated rubber should have a chlorine content from about 65 to about 70% by weight.
- the viscosity of the chlorinated rubber may be in the range from about 10 centipoises to about 5000 centipoises (as determined at 25 C. in a capillary viscometer using a toluene solution containing by weight of chlorinated rubber), with a preferred range from about 20 centipoises to about 125 centipoises.
- the plasticizer may be dibutyl phthalate, tricresyl phosphate, diethyl phthalate, diamyl phthalate, triethyl citrate, Santicizer B-16 (butyl phthalyl butyl glycolate), or the like.
- the pigment may be manganous carbonate, naturally-occurring manganous carbonate (rhodochrosite), nickelous oxalate, calcium carbonate, zinc oxide, magnesium borate, or similar materials such as an oxide, a salt or the like which is substantialy nonvolatile at the combustion temperature of the smokeless powder or which may decompose at the combustion temperature of the smokeless powder to leave a substantially nonvolatile residue.
- the solvent may be a mixture of toluene and butyl acetate, a mixture of toluene and ethyl acetate, a mixture of Tollac (a hydrocarbon solvent containing a major portion of benzol by volume) and butyl acetate, a mixture of Tollac and ethyl acetate, or any similar organic solvent combination involving aliphatic or aromatic hydrocarbons, ketones, esters, chlorinated hydrocarbons, and the like.
- Tollac a hydrocarbon solvent containing a major portion of benzol by volume
- the resinous material may be a resin or resin-like material such as Rezyl 869 (drying oil glycerol phthalate alkyd) or Lewisol E -103 (drying oil glycerol phthalate alkyd) or any similar material such as a dryingoil-modified phthalate alkyd resin or a dryingoil-modified alkyd resin.
- Other materials may also be used as the resinous component in the present lacquer combinations such as natural resins and synthetic resins such as phenolformaldehyde and other resin-type materials which are compatible with chlorinated rubber.
- the preferred proportions, in parts by weight, of the various constituents given above which can be used in the lacquers of the present invention are substantially those given in Table I above. However, it has been foundthat from about 5 to about parts of chlorinated rubber, from about 3 to about 10 parts of plasticizer, from about 20 to about 40 parts of pigment, from about 5 to about 20 parts of resin, and a solvent in proportion to form from about 30 to about 95% of the finished lacquer may be used.
- a solvent mixture of toluene or similar solvent with butyl or ethyl acetate may be used, said solvent mixture comprising from about 30 toabout 95% by weight of the lacquer ready for application to the powder, the toluene or similar solvent, and the butyl or ethyl acetate each comprising from about 10 to about of the lacquer ready for application to the powder.
- suitable in accordance with this invention actually restrict the burning area of smokeless powder as shown in static firing tests carried out with the aid of rocket-type chambers provided with an opening at one end to allow escape of the gases formed by the burning ofthe powder.
- the pressure attained in such a chamber depends upon the ratio of the area of powder surface available for burning to the area of the opening which allows escape of the gases of combustion. Large grains of powder in the form of solid cylindrical sticks of powder were partially coated with lacquer, leaving one end not lacquered.
- the chambers were provided with a shear dis-c designed to be blown out when the pressure rose as high as or somewhat higher than about 5000 pounds per square inch. The pressure produced inside the chamber was measured by a copper ball pressure gage fitted in the side of the chamber.
- the dry film thickness of the lacquer coating may be varied by the number of applications, the per cent solids of the lacquer andchoice of lacquer ingredients suchas plasticizers, resins, solvents, and viscosity-type of chlorinated rubber used. Applications of the lacquer as thin as 0.004 inch and as thick as 0.020 inch have The optimum thickness will be determined by the dimensions and burning characteristics of the powder grain, and the length of time for which burning is to be restricted.
- lacquers of the present invention may be applied to a powder consisting of any of a variety of compositions and to'powders both with and without nitroglycerin as a component. 7
- lacquers of the present invention resides principally in their use as a coating composition for large smokeless powder grains which are to be used as a source of energy in jet-propelled devices, such as rockets, airplane starters, assisted take-off devices, and the like, including any device which derives translational or rotational energy at least partly from the reaction producedfrom the issuance at relatively high speed of fluid medium from an opening in the device.
- lacquers of the present invention are easily and quickly applied to powder grains; they may be applied at room temperature without the inconvenience and danger which accompany the use of heated melts; they may be applied by simple means, such as dipping, brush- 'ing, or spraying; and require no time-consuming,
- a propel lant charge for a jet-propelled device which comprises a solid stick of smokeless powder and a flame-resistant film partially covering the surface of the solid stick, said flame-resistant film being formed from a composition comprising by weight from about to about 25 part of chlorinated rubber, from about 3 to about parts of a plasticizer, from about to about 40 parts of a pigment which is substantially nonvolatile at th combustion temperature of the smokeless.
- a propellant charge according to claim 1 wherein the lent charge for a jet-propelled device which comprises a solid stick of smokeless powder hav ing its surface partially covered with a coating comprising from about 5 to about 25 parts of chlorinated rubber, from about 3 to about 10 parts of plasticizer, from about 20 to about 40 parts of pigment which leaves a residue of solid material even after heating to the combustion temperature of the smokeless powder, and from,
- a propellent charge for a jet-propelled device which comprises a solid stick of smokeless powder having its surface, except for one end, covered with a coating comprising from about 5 to about 25 parts of chlorinated rubber, from about 3 to about 10 parts of plasticizer, from about 20 to about 40 parts of pigment which leavesa residue of solid material even after heating to the combustion temperature of the smokeless powder, and from about 5 to about 20 part of a resinous material compatible with the chlorinated rubber.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Paints Or Removers (AREA)
Description
Patented June 23, 1953 1 UNITED NT OFFICE.
PROPELLENT CHARGE FOR J ET-PROPELLED DEVICES No Drawing. Application January 15, 1944, Serial No. 518,457
7 6 Claims. ((11. 52 .5)
powder for use in conventional guns. This overall burning rate is in part reduced by producing the propellant charge in the form of relatively large grains of relatively thick web. These large grains because of their relatively low surfaceto-volume ratio exhibit an overall burning rate considerably less than that of the same or similar powder having grains of the size used in the production of conventional powders for con- 'ventional guns. Moreover, while it has long been recognized in the manufacture of conventional powders that the burning rate may be altered or retarded by the application of a coating composition to the surface of thhe powder grains, such a surface coating alters or retards the initial rate of burning of the grain without re- 'stricting the burning area of the grain and,
therefore, permits burning at too high a rate for satisfactory use of the coated grains in certain jet-propelled devices.
Now, in accordance with this invention, it
has been found that a coating composition consisting of lacquers containing chlorinated rubber applied on a part of the surface of a large smokeless powder grain will restrict the burning area of the grain and thereby still further reduce the overall burning rate of the grain, thereby rendering it suitable as a propellant charge for a jet-propelled device.
These lacquers are composed of chlorinated rubber, plasticizer, pigment, solvent, and resinous material. Table I shows preferred formulae for lacquers which have been found suitable as a flame-resistant coating composition for large smokeless powder grains:
Table I Formula No 1 2 3 4 5 6 Chlorinated rubber 15 15 l5 l5 Nickclous oxa1ate Tricresyl phosphate Ethyl acetate Lewisol F-103 l0 Percent by weight 100 100 100 100 100 100 With reference to Table I, the chlorinated rubber should have a chlorine content from about 65 to about 70% by weight. The viscosity of the chlorinated rubber may be in the range from about 10 centipoises to about 5000 centipoises (as determined at 25 C. in a capillary viscometer using a toluene solution containing by weight of chlorinated rubber), with a preferred range from about 20 centipoises to about 125 centipoises. The plasticizer may be dibutyl phthalate, tricresyl phosphate, diethyl phthalate, diamyl phthalate, triethyl citrate, Santicizer B-16 (butyl phthalyl butyl glycolate), or the like. The pigment may be manganous carbonate, naturally-occurring manganous carbonate (rhodochrosite), nickelous oxalate, calcium carbonate, zinc oxide, magnesium borate, or similar materials such as an oxide, a salt or the like which is substantialy nonvolatile at the combustion temperature of the smokeless powder or which may decompose at the combustion temperature of the smokeless powder to leave a substantially nonvolatile residue. The solvent may be a mixture of toluene and butyl acetate, a mixture of toluene and ethyl acetate, a mixture of Tollac (a hydrocarbon solvent containing a major portion of benzol by volume) and butyl acetate, a mixture of Tollac and ethyl acetate, or any similar organic solvent combination involving aliphatic or aromatic hydrocarbons, ketones, esters, chlorinated hydrocarbons, and the like. The resinous material may be a resin or resin-like material such as Rezyl 869 (drying oil glycerol phthalate alkyd) or Lewisol E -103 (drying oil glycerol phthalate alkyd) or any similar material such as a dryingoil-modified phthalate alkyd resin or a dryingoil-modified alkyd resin. Other materials may also be used as the resinous component in the present lacquer combinations such as natural resins and synthetic resins such as phenolformaldehyde and other resin-type materials which are compatible with chlorinated rubber.
The preferred proportions, in parts by weight, of the various constituents given above which can be used in the lacquers of the present invention are substantially those given in Table I above. However, it has been foundthat from about 5 to about parts of chlorinated rubber, from about 3 to about 10 parts of plasticizer, from about 20 to about 40 parts of pigment, from about 5 to about 20 parts of resin, and a solvent in proportion to form from about 30 to about 95% of the finished lacquer may be used. A solvent mixture of toluene or similar solvent with butyl or ethyl acetate may be used, said solvent mixture comprising from about 30 toabout 95% by weight of the lacquer ready for application to the powder, the toluene or similar solvent, and the butyl or ethyl acetate each comprising from about 10 to about of the lacquer ready for application to the powder.
The lacquers which have been found to be been found suitable.
suitable in accordance with this invention actually restrict the burning area of smokeless powder as shown in static firing tests carried out with the aid of rocket-type chambers provided with an opening at one end to allow escape of the gases formed by the burning ofthe powder. For a given powder, the pressure attained in such a chamber depends upon the ratio of the area of powder surface available for burning to the area of the opening which allows escape of the gases of combustion. Large grains of powder in the form of solid cylindrical sticks of powder were partially coated with lacquer, leaving one end not lacquered. The chambers were provided with a shear dis-c designed to be blown out when the pressure rose as high as or somewhat higher than about 5000 pounds per square inch. The pressure produced inside the chamber was measured by a copper ball pressure gage fitted in the side of the chamber. The results of Table II show that the burning pressure is lowered and the burning time is increased and hence that the burning surface is restricted by use of the lacquer. Typical results are shown The burning time for the unlacquered grain of powder in the above table was in the order of 0.1 second. The burning time for the lacquered grains of powder in the above table was in the order of several seconds.
The dry film thickness of the lacquer coating may be varied by the number of applications, the per cent solids of the lacquer andchoice of lacquer ingredients suchas plasticizers, resins, solvents, and viscosity-type of chlorinated rubber used. Applications of the lacquer as thin as 0.004 inch and as thick as 0.020 inch have The optimum thickness will be determined by the dimensions and burning characteristics of the powder grain, and the length of time for which burning is to be restricted.
The lacquers of the present invention may be applied to a powder consisting of any of a variety of compositions and to'powders both with and without nitroglycerin as a component. 7
With reference to Table II, it will be seen that when the lacquers of the present invention were applied to the surface or superficial part of a grain of smokeless powder, the maximum pressure was reduced and the burning time was increased. -When a proper means of ignition is applied to a powder grain so coated under conditions suitable for burning the powder at relatively low pressures, such as are met in jetpropelled devices, ignition of the powder grain will occur only on the unlacquered part of the surface or superficial portion of the grain. Under such conditions, burning proceeds fromthe ignited part of the surface or superficial portion inward into the body of the grain. .The part of the grain beneath the lacquered surface ultimately burns, but only as a result of the burning having progressed to it from a portion of the grain other than the lacquered surface.
The utility of the lacquers of the present invention resides principally in their use as a coating composition for large smokeless powder grains which are to be used as a source of energy in jet-propelled devices, such as rockets, airplane starters, assisted take-off devices, and the like, including any device which derives translational or rotational energy at least partly from the reaction producedfrom the issuance at relatively high speed of fluid medium from an opening in the device.
The lacquers of the present invention are easily and quickly applied to powder grains; they may be applied at room temperature without the inconvenience and danger which accompany the use of heated melts; they may be applied by simple means, such as dipping, brush- 'ing, or spraying; and require no time-consuming,
difficult operations or special equipment for their application.
WhatI claim and desire to protect by Letters Patent is:
1. As a new article of manufacture, a propel lant charge for a jet-propelled device which comprises a solid stick of smokeless powder and a flame-resistant film partially covering the surface of the solid stick, said flame-resistant film being formed from a composition comprising by weight from about to about 25 part of chlorinated rubber, from about 3 to about parts of a plasticizer, from about to about 40 parts of a pigment which is substantially nonvolatile at th combustion temperature of the smokeless.
' powder, from about 5 to about 20 parts of a resinous material compatible with the chlorinated rubber, and a solvent, said solvent being present in amount from about 30 to about by .weight of the composition ready for application to the stick of smokeless powder.
2. As a new article of manufacture, a propellant charge according to claim 1 wherein the pigment is manganous carbonate.
3. As a new article of manufacture, a propellant charge according to claim 1 wherein the lent charge for a jet-propelled device which comprises a solid stick of smokeless powder hav ing its surface partially covered with a coating comprising from about 5 to about 25 parts of chlorinated rubber, from about 3 to about 10 parts of plasticizer, from about 20 to about 40 parts of pigment which leaves a residue of solid material even after heating to the combustion temperature of the smokeless powder, and from,
about 5 to about 20 parts of a resinous material compatible with the chlorinated rubber.
6. As a new article "of manufacture, a propellent charge for a jet-propelled device which comprises a solid stick of smokeless powder having its surface, except for one end, covered with a coating comprising from about 5 to about 25 parts of chlorinated rubber, from about 3 to about 10 parts of plasticizer, from about 20 to about 40 parts of pigment which leavesa residue of solid material even after heating to the combustion temperature of the smokeless powder, and from about 5 to about 20 part of a resinous material compatible with the chlorinated rubber.
7 ROBERT W. CAIRNS.
(References on following page) 5 6 References Cited in the file of this patent Numbe Country Date UNITED STATES PATENTS 432,645 Great Britain July 31, 1935 Number Name Date 502,560 France Feb. 24:, 1920 846,522 Fran 12, 193 2,095,574 Roumazeilles Oct. 12, 1937 5 Ce June 9 2,145,539 Fander Jan. 31, 1939 OTHER REFERENCES 2,147,698 Goodyear Feb. 21, 1 39 Mattiello Protective & Decorative Coatings, 2,211,431 Olsen Aug. 13, 1940 vol. I, pages 467-470, 1941. 2,229,882 Binapfl Jan. 28, 1941 FOREIGN PATENTS 10 Number Country Date Great Britain Nov. 29, 1907
Claims (1)
1. AS A NEW ARTICLE OF MANUFACTURE, A PROPELLANT CHARGE FOR A JET-PROPELLED DEVICE WHICH COMPRISES A SOLID STICK OF SMOKELESS POWDER AND A FLAME-RESISTANT FLIM PARTIALLY COVERING THE SURFACE OF THE SOLID STICK, SAID FLAME-RESISTANT FILM BEING FORMED FROM A COMPOSITION COMPRISING BY WEIGHT FROM ABOUT 5 TO ABOUT 25 PARTS OF CHLORINATED RUBBER, FROM ABOUT 3 TO ABOUT 10 PARTS OF A PLASTICIZER, FROM ABOUT 20 TO ABOUT 40 PARTS OF A PIGMENT WHIHC IS SUBSTANTIALLY NONVOLATILE AT THE COMBUSTION TEMPERATURE OG THE SMOKELESS POWDER, FROM ABOUT 5 TO ABOUT 20 PARTS OF A RESINOUS MATERIAL COMPATIBLE WITH THE CHLORINATED RUBBER, AND A SOLVENT, SAID SOLVENT BEING PRESENT IN AMOUNT FROM ABOUT 30 TO ABOUT 95% BY WEIGHT OF THE COMPOSITION READY FOR APPLICATION TO THE STICK OF SMOKELESS POWDER.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US518457A US2643184A (en) | 1944-01-15 | 1944-01-15 | Propellent charge for jet-propelled devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US518457A US2643184A (en) | 1944-01-15 | 1944-01-15 | Propellent charge for jet-propelled devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2643184A true US2643184A (en) | 1953-06-23 |
Family
ID=24064015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US518457A Expired - Lifetime US2643184A (en) | 1944-01-15 | 1944-01-15 | Propellent charge for jet-propelled devices |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2643184A (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2858289A (en) * | 1953-05-25 | 1958-10-28 | Hercules Powder Co Ltd | Combustion inhibitor for gas-producing charges |
| US2921846A (en) * | 1955-02-11 | 1960-01-19 | Midland Chemical Corp | Thickened or gelled normally liquid nitroparaffin propellants |
| US2944881A (en) * | 1957-03-08 | 1960-07-12 | Union Carbide Corp | Preparation of rocket propellants |
| US2994597A (en) * | 1961-08-01 | Slow burning propellent grain with polysulfide polymer coating | ||
| US3010399A (en) * | 1957-07-02 | 1961-11-28 | Douglas Aircraft Co Inc | Impulse generator |
| US3032437A (en) * | 1958-09-17 | 1962-05-01 | Phillips Petroleum Co | Method of restricting propellant grains |
| US3035949A (en) * | 1958-05-06 | 1962-05-22 | Du Pont | Hydrocarbylphosphinodecaboranes and fuel compositions containing them |
| US3049452A (en) * | 1957-08-16 | 1962-08-14 | Phillips Petroleum Co | Rubber and propellant composition containing the same |
| US3077072A (en) * | 1959-01-29 | 1963-02-12 | Specialties Dev Corp | Gelled hydrazine monopropellant |
| US3083610A (en) * | 1959-04-27 | 1963-04-02 | Leslie E Lancy | Metal coated propellant |
| US3107186A (en) * | 1953-08-06 | 1963-10-15 | Atlantic Res Corp | Solid polyvinyl chloride propellants containing metal |
| US3108431A (en) * | 1956-11-16 | 1963-10-29 | Aerojet General Co | Method of producing thrust for propulsion by combustion a reaction product of libh4 and nh3 with an oxidizer |
| US3145192A (en) * | 1957-07-01 | 1964-08-18 | Thiokol Chemical Corp | Acetylenic polyurethanes useful as propellants |
| US3157025A (en) * | 1959-06-10 | 1964-11-17 | Phillips Petroleum Co | Rocket motor and solid propellant charge |
| US3712233A (en) * | 1971-01-28 | 1973-01-23 | Dow Chemical Co | Caseless pyrotechnic smoldering munition |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190726430A (en) * | 1907-11-29 | 1908-07-02 | Emile Bourdelles | Improvements in or relating to Torpedoes. |
| FR502550A (en) * | 1915-11-16 | 1920-05-18 | Maurice Jeanson | Starting process for an internal combustion engine and device for its implementation |
| GB432645A (en) * | 1934-01-31 | 1935-07-31 | George Henry Clifford Corner | Improvements in or relating to the manufacture of sliding clasp fasteners |
| US2095574A (en) * | 1935-05-10 | 1937-10-12 | Harle Freres & Co S A R L Soc | Mining fuse |
| US2145639A (en) * | 1936-01-11 | 1939-01-31 | Degussa | Process for the transformation of soluble mixtures containing chlorinated rubber into insoluble products |
| US2147698A (en) * | 1937-07-06 | 1939-02-21 | Hercules Powder Co Ltd | Method in the preparation of progressive-burning smokeless powder, and product thereof |
| FR846522A (en) * | 1938-05-24 | 1939-09-19 | Process making materials of cellulosic origin flame retardant, waterproof, bactericidal and rot-proof in a single operation | |
| US2211431A (en) * | 1938-10-12 | 1940-08-13 | Hercules Powder Co Ltd | Lacquer composition containing a solution of chlorine-containing rubber |
| US2229882A (en) * | 1931-10-24 | 1941-01-28 | I G Farbeninindustrie Ag | Process for the production of coating preparations |
-
1944
- 1944-01-15 US US518457A patent/US2643184A/en not_active Expired - Lifetime
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190726430A (en) * | 1907-11-29 | 1908-07-02 | Emile Bourdelles | Improvements in or relating to Torpedoes. |
| FR502550A (en) * | 1915-11-16 | 1920-05-18 | Maurice Jeanson | Starting process for an internal combustion engine and device for its implementation |
| US2229882A (en) * | 1931-10-24 | 1941-01-28 | I G Farbeninindustrie Ag | Process for the production of coating preparations |
| GB432645A (en) * | 1934-01-31 | 1935-07-31 | George Henry Clifford Corner | Improvements in or relating to the manufacture of sliding clasp fasteners |
| US2095574A (en) * | 1935-05-10 | 1937-10-12 | Harle Freres & Co S A R L Soc | Mining fuse |
| US2145639A (en) * | 1936-01-11 | 1939-01-31 | Degussa | Process for the transformation of soluble mixtures containing chlorinated rubber into insoluble products |
| US2147698A (en) * | 1937-07-06 | 1939-02-21 | Hercules Powder Co Ltd | Method in the preparation of progressive-burning smokeless powder, and product thereof |
| FR846522A (en) * | 1938-05-24 | 1939-09-19 | Process making materials of cellulosic origin flame retardant, waterproof, bactericidal and rot-proof in a single operation | |
| US2211431A (en) * | 1938-10-12 | 1940-08-13 | Hercules Powder Co Ltd | Lacquer composition containing a solution of chlorine-containing rubber |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2994597A (en) * | 1961-08-01 | Slow burning propellent grain with polysulfide polymer coating | ||
| US2858289A (en) * | 1953-05-25 | 1958-10-28 | Hercules Powder Co Ltd | Combustion inhibitor for gas-producing charges |
| US3107186A (en) * | 1953-08-06 | 1963-10-15 | Atlantic Res Corp | Solid polyvinyl chloride propellants containing metal |
| US2921846A (en) * | 1955-02-11 | 1960-01-19 | Midland Chemical Corp | Thickened or gelled normally liquid nitroparaffin propellants |
| US3108431A (en) * | 1956-11-16 | 1963-10-29 | Aerojet General Co | Method of producing thrust for propulsion by combustion a reaction product of libh4 and nh3 with an oxidizer |
| US2944881A (en) * | 1957-03-08 | 1960-07-12 | Union Carbide Corp | Preparation of rocket propellants |
| US3145192A (en) * | 1957-07-01 | 1964-08-18 | Thiokol Chemical Corp | Acetylenic polyurethanes useful as propellants |
| US3010399A (en) * | 1957-07-02 | 1961-11-28 | Douglas Aircraft Co Inc | Impulse generator |
| US3049452A (en) * | 1957-08-16 | 1962-08-14 | Phillips Petroleum Co | Rubber and propellant composition containing the same |
| US3035949A (en) * | 1958-05-06 | 1962-05-22 | Du Pont | Hydrocarbylphosphinodecaboranes and fuel compositions containing them |
| US3032437A (en) * | 1958-09-17 | 1962-05-01 | Phillips Petroleum Co | Method of restricting propellant grains |
| US3077072A (en) * | 1959-01-29 | 1963-02-12 | Specialties Dev Corp | Gelled hydrazine monopropellant |
| US3083610A (en) * | 1959-04-27 | 1963-04-02 | Leslie E Lancy | Metal coated propellant |
| US3157025A (en) * | 1959-06-10 | 1964-11-17 | Phillips Petroleum Co | Rocket motor and solid propellant charge |
| US3712233A (en) * | 1971-01-28 | 1973-01-23 | Dow Chemical Co | Caseless pyrotechnic smoldering munition |
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