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IPC classes for russian patent Composite solid propellant (RU 2430902):
Gas generating composition / 2425821
Gas generating composition contains the following, wt %: ammonium nitrate 50.0-70.0, poly-N-methyl-5-vinyltetrazole 4.8-8.0, zinc oxide 1.0-2.0, nitraminopropionitrile 16.7-27.3, 2,4-dinitro-2,4-diazapentane 7.2-11.6, diphenylamine 0.3-1.0.
 Ammonium nitrate based solid-fuel gas-generating composition / 2423339
Invention relates to gas-generating techniques, particularly to high-energy solid-fuel gas-generating compositions and can be used in different fire-extinguishing systems based on gas-generators, standalone systems for lifting sunken objects, airbags in cars and oil well stimulation systems. The solid-fuel gas-generating composition contains an oxidising agent, fuel-binder and an energy additive. The oxidising agent used is GV ammonium nitrate, the fuel-binder used is methylpolyvinyl tetrazole and the energy additive used is nitraminopropionitrile, with the content of components in wt %: 60-70 GV ammonium nitrate, 5-20 methylpolyvinyl tetrazole, 20-25 itraminopropionitrile.
Method of producing high-filled solid rocket propellant of ballistic type / 2412925
Invention relates to rocketry. Proposed method comprises mixing propellant components in aqueous medium, squeezing, rolling, drying and charge moulding in moulds. Note here that propellant chips produced in squeezing, are retuned in amount of 5…15% of processed bulk into squeezer for reuse, which adds to efficiency and safety.
 Method to produce composite solid propellant / 2407728
Method is realised in mixing plant, consisting of preliminary, upper and lower mixers. Initially excess of liquid-viscous components is dosed into preliminary mixer, including mixing in upper mixer. Then mixing is simultaneously started in preliminary mixer, and liquid-viscous and powdery components are synchronously dosed in amount of 20-40% of upper mixer charge volume. Afterwards dosing and mixing in preliminary mixer are stopped, and components are mixed in upper mixer for 5-10 minutes. Ratio of components mix in upper mixer is corrected by lacking amount of powdery components. Corrected mixture of components is mixed in upper mixer for 10-25 minutes, and synchronous dosing of liquid-viscous and powdery components is restored and mixed serially in preliminary, upper and lower mixers of mixing plant.
 Gas-generating fuel for downhole apparatus / 2401254
Gas-generating fuel contains an oxidising agent and fuel. According to the invention, the oxidising agent is ammonium perchlorate and the fuel is a metallic fuel in form of aluminium and a thermoplastic fuel in form of a chlorine-containing thermoplastic polymer or its mixture with a chlorine-containing low-molecular weight compound in ratio of 1:0.1-1:2, with the following ratio of components, wt %: oxidising agent -50.0-79.0, thermoplastic fuel 20.0-40.0, metallic fuel 1.0-10.0. The chlorine-containing thermoplastic polymer is chlorinated polyethylene or polyvinylchloride or chlorinated polyvinylchloride or chlorosulphonated polyethylene. The chlorine-containing low-molecular weight compound is chlorinated paraffin wax or methyl chloroform, or tetrachloroethane or perchloroethylene or dichlorobenzene or hexachloro-p-xylene. The fuel also contains a process additive - calcium or zinc stearate in amount of 0.05-1.0 wt %.
 Gas-generating fuel for downhole apparatus / 2401253
Gas-generating fuel contains an oxidising agent and fuel. The oxidising agent is ammonium perchlorate and the fuel is a thermoplastic fuel in form of a chlorine-containing thermoplastic polymer or its mixture with a chlorine-containing low-molecular weight compound in ratio of 1:0.1-1:2, with the following ratio of components, wt %: oxidising agent 60.0-80.0, thermoplastic fuel 20.0-40.0. The chlorine-containing thermoplastic polymer is chlorinated polyethylene or polyvinylchloride or chlorinated polyvinylchloride or chlorosulphonated polyethylene. The chlorine-containing low-molecular weight compound is chlorinated paraffin wax or methyl chloroform, or tetrachloroethane or perchloroethylene or dichlorobenzene or hexachloro-p-xylene. The fuel also contains a process additive - calcium or zinc stearate in amount of 0.05-1.0 wt %.
 Gas-generating fuel for downhole apparatus / 2395482
Invention relates to solid gas-generating solid fuels. The gas-generating fuel for downhole apparatus contains ammonium perchlorate as an oxidising agent, synthetic hydrocarbon rubber which is plasticised with hydrocarbon oil in mass ratio of 1:1…1:5 as fuel, aluminium, process additives, a vulcanising agent and ammonium chloride as a gas-generating additive.
Method of making mixed solid fuel charge / 2395479
Invention relates to technology of making charges from mixed solid fuel. The method of making a mixed solid fuel charge involves grinding, fractionation and mixing different fractions of an oxidising agent, preparation of a mixture of binder with metallic fuel and additives, preparation of a mixture of hardener components and preparation of a fuel mixture, moulding, polymerisation, pressing and flaw detection of the charge. At the step for preparing a mixture of binder with metallic fuel and additives, rubber - oligomer polyvinyl isoprene urethane with terminal epoxy groups is divided into two portions. One portion of the rubber and a polymer chain extension - aniline is used to prepare a semi-finished product and is mixed with the second portion of the rubber and components of the mixture of binder with additives.
Gas-generating composition for producing breathable gas / 2394801
Invention relates to pyrotechnics. The gas-generating composition for producing breathable gas contains silicon as fuel, cellulose nitrate or sodium metasilicate, or magnesium cement as binder, oxidising agent which forms nitrogen in combustion products, in form of nitrates of alkali or alkali-earth metals or their mixture with potassium perchlorate or ammonium perchlorate in ratio which ensures absence of hydrogen chloride in the combustion products.
 Method of making articles from mixed solid rocket fuel / 2394011
Invention relates to technology of making articles from mixed solid rocket fuel. The method of making articles from mixed solid rocket fuel involves moulding articles into a case through pressure moulding of fuel mass on a continuously running installation with auger unloading, holding the moulded articles under pressure during operation of the auger with simultaneous cooling of the fuel mass in the auger by feeding a heat carrier into the housing of the auger, cutting off the fuel mass in the case using a cutter and press curing. Cooling of fuel mass in the auger feeding heat carrier into the housing of the auger begins 3-20 minutes before the end of moulding the article. After ageing of the moulded article, pressure in the case of the article is established in accordance with a mathematical formula by smoothly varying rotational speed of the auger. Further, without changing the rotational speed of the auger, the cutter is closed and after 0.5-1.0 minutes, rotational speed of the auger is smoothly reduced to zero and the auger is switched off. The stroke speed of the piston of the cutter during its closure is preset at a value not greater than 0.15 m/min.
Explosive composition with multifunctional action / 2415831
Invention relates to explosive substances with multifunctional action and can be used in ammunition for different purposes. The disclosed composition contains a plasticiser (2-30 wt %), blasting explosive - phlegmatised hexogene or octogene (10-60 wt %), aluminium (15-36 wt %), inorganic oxidising agent (5-30 wt %), polymer (2-10 wt %). The plasticiser used is triethylene glycol dinitrate, the polymer used is a copolymer of methylmethacrylate and methacrylic acid or a fluoropolymer or fluororubber or butadiene nitrile rubber, the inorganic oxidising agent used is ammonium perchlorate or potassium perchlorate or barium nitrate and the metallic fuel used is aluminium. Further, in order to increase thermal stability, the explosive composition may contain diphenylamine and a nitroso compound or quinol ether as structure-forming agents.
Gas-generating fuel for downhole apparatus / 2401254
Gas-generating fuel contains an oxidising agent and fuel. According to the invention, the oxidising agent is ammonium perchlorate and the fuel is a metallic fuel in form of aluminium and a thermoplastic fuel in form of a chlorine-containing thermoplastic polymer or its mixture with a chlorine-containing low-molecular weight compound in ratio of 1:0.1-1:2, with the following ratio of components, wt %: oxidising agent -50.0-79.0, thermoplastic fuel 20.0-40.0, metallic fuel 1.0-10.0. The chlorine-containing thermoplastic polymer is chlorinated polyethylene or polyvinylchloride or chlorinated polyvinylchloride or chlorosulphonated polyethylene. The chlorine-containing low-molecular weight compound is chlorinated paraffin wax or methyl chloroform, or tetrachloroethane or perchloroethylene or dichlorobenzene or hexachloro-p-xylene. The fuel also contains a process additive - calcium or zinc stearate in amount of 0.05-1.0 wt %.
Gas-generating fuel for downhole apparatus / 2401253
Gas-generating fuel contains an oxidising agent and fuel. The oxidising agent is ammonium perchlorate and the fuel is a thermoplastic fuel in form of a chlorine-containing thermoplastic polymer or its mixture with a chlorine-containing low-molecular weight compound in ratio of 1:0.1-1:2, with the following ratio of components, wt %: oxidising agent 60.0-80.0, thermoplastic fuel 20.0-40.0. The chlorine-containing thermoplastic polymer is chlorinated polyethylene or polyvinylchloride or chlorinated polyvinylchloride or chlorosulphonated polyethylene. The chlorine-containing low-molecular weight compound is chlorinated paraffin wax or methyl chloroform, or tetrachloroethane or perchloroethylene or dichlorobenzene or hexachloro-p-xylene. The fuel also contains a process additive - calcium or zinc stearate in amount of 0.05-1.0 wt %.
Gas-generating fuel for downhole apparatus / 2395482
Invention relates to solid gas-generating solid fuels. The gas-generating fuel for downhole apparatus contains ammonium perchlorate as an oxidising agent, synthetic hydrocarbon rubber which is plasticised with hydrocarbon oil in mass ratio of 1:1…1:5 as fuel, aluminium, process additives, a vulcanising agent and ammonium chloride as a gas-generating additive.
 Thermoplastic gas-generating high-power pyrotechnic composition / 2394800
Invention relates to pyrotechnics. The thermoplastic gas-generating pyrotechnic composition contains binder - a mixture of a copolymer of butadiene and nitrile of acrylic acid with phenol-formaldehyde resin and an oxidising agent - ammonium perchlorate at a defined ratio of components. The composition can be used to carry out work in actuating mechanisms of pyro-automatic devices.
 Gas-generating fuel for downhole apparatus / 2393139
Invention relates to gas-generating solid fuels. The gas-generating fuel for downhole apparatus contains ammonium perchlorate as an oxidising agent, synthetic hydrocarbon rubber plasticised with hydrocarbon oil as fuel, lecithin, epoxy resin, ortho-tert-butyl-para-cresol or tertiary butylphenol as a processing additive, paradinitrosobenzene or quinol ether as a curing agent, ammonium chloride as a gas-generating additive. The synthetic hydrocarbon rubber used can be isoprene, butadiene, ethylenepropylene, isoprenedivinyl or butyl rubber and the hydrocarbon oil can be transformer, aviation or industrial oil.
 Method for fabrication of ammonia perchlorate containing hydrophobisated fraction / 2363690
Invention refers to the fabrication of ammonia perchlorate for composite solid propellant. The fabrication method of ammonia perchlorate containing the hydrophobisated fraction includes the preparation of the hydrophobizated fraction with specific surface area from 5400 to 7300 cm2/g having alkylsiloxane coating with mass content from 0.11 to 0.25 wt %, addition of the said hydrophobizated fraction to ammonia perchlorate in the amount of 1.5 to 77 wt % and mixing in the drum mixer having cylinders with height and diametre 30-40 mm made from elastic polyurethane. The hydrophobizated fraction of ammonia perchlorate is fabricated and packed to the bags with calculating of the arithmetic mean of the alkylsiloxane content in the fabricated bags round to the nearest hundredths. The hydrophobizated fraction used for addition to ammonia perchlorate has alkylsiloxane content departure from arithmetic mean value no more than ±0.01 wt %.
Process of preparing micronized ammonium perchlorate / 2310635
Invention provides micronized ammonium perchlorate for mixed propellant comprising preparation of lecithin solution in dispersion liquid, preparation of ammonium perchlorate slurry in this solution, and reduction of slurry in bead mill in presence of glass beads. Solution of lecithin in dispersion liquid is prepared via dissolution of lecithin in 2.7-15.0% of the total amount of dispersion liquid, filtration of resulting solution, addition thereof to the rest of dispersion liquid, and stirring. As dispersion liquid, fluorodichloroethane is utilized. Reduction of slurry in bead mill is carried out at temperature not exceeding 25°C.
 Method of hydrophobization of ammonium perchlorate / 2287510
The invention is pertaining to the process of production of the blasting explosives. The invention presents the method of hydrophobization of the ammonium perchlorate including the treatment of ammonium perchlorate with the oil-wetting agent - methyltrichlorosilane vapor-phase in two stages. At the first stage ammonium perchlorate is mixed with ammonium bicarbonate, and the gained mixture is ground at simultaneous feeding of the oil-wetting agent. At the second stage the produced ground mixture is averaged and mixed with ammonium bicarbonate and treat with the oil-wetting agent. Process of hydrophobization at the second stage is completed at pH of the gaseous products of no less than 6. The invention allows to reduce consumption of the oil-wetting agent.
Method for decreasing volatility of carboxylate rubber-base solid-propellant compositions of liquid ferrocene compounds and high-modulus carboxylate rubber-base solid-propellant composition and liquid ferrocene-containing catalytically active plasticizer / 2276162
Invention relates to using ferrocene-containing catalytically active plasticizers in high-modulus solid-propellant composition for different designations possessing the enhanced exploitation stability and broadly regulated range of the combustion rate. The composition comprises the following components: 60-80 wt.-% of oxidizing agent, for example, ammonium and potassium nitrate or FPCh; 2-20% of aluminum; 5-15% of liquid carboxylate rubber; 1.5-3.5% of epoxy resin, for example, epoxydiane resin ED-20 or resin EC-N; 0.01-4% of liquid ferrocene compound; 0.5-3.5% of co-plasticizer, transformer oil and/or DBS; 0.05-0.5% of hardening accelerating agents, and 0.01-0.2% of surface-active substances. Method for preparing high-modulus solid-propellant composition of reduced volatility of liquid ferrocene compound involves preliminary dissolving the ferrocene compound in co-plasticizer in the mass ratio = (20-80):(1-99) followed by plasticizing a polymeric binding agent and its mixing with surface-active substance, aluminum, oxidizing agent and hardening accelerating agents. Invention provides enhancing the strength properties of the composition.
 Ammonium perchlorate preparation method / 2246472
Invention proposes a method for preparation of ammonium perchlorate for compounded solid rocked fuel, which is characterized by preparation of coating solution in liquid carrier via dissolution of lecithin in trifluorotrichloroethane or methylene dichloride, preparation of ammonium perchlorate suspension from ammonium perchlorate and above-prepared solution, breakage of suspension by means of glass beads on two twin mills during 1 to 10 h until ammonium perchlorate having particle size 2.0 to 1.0 μm is obtained in case of batch operation mode and during 8 to 16 h to ammonium perchlorate particle size 1.0 to 0.55 μm in case of stepwise charging of lecithin at 3 h intervals, and drying. When number of dead mills and working room of mixer are changed, breakage time is found with the aid of special formula.
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FIELD: chemistry. SUBSTANCE: composite solid propellant based on ammonium perchlorate contains polyvinyl isoprene rubber with terminal epoxy groups, polybutadiene rubber with terminal carboxyl groups, aniline, para-aminobenzoic acid, metallic fuel - dispersed aluminium, curing agent - zinc stearate, plasticiser - mixture of polyvinyl isoprene rubber, di-(2-ethylhexyl)- sebacate and tributyl phosphate, combustion modifier - OSF product, where the ratio of polyvinyl isoprene rubber with terminal epoxy groups to polybutadiene rubber with terminal carboxyl groups is equal to 0.9 mol (5.0…7.1 wt %) to 0.11…0.2 mol (0.54…1.1 wt %). EFFECT: fuel composition has improved physical and mechanical properties on the entire temperature range and short curing time. 1 tbl, 6 ex
The invention relates to the field of rocket technology, namely the composite solid rocket fuel, operated in the temperature range from 60 to -70°C and used in missile systems melee, aviation and systems of volley fire. From literature it is known that the physico-mechanical characteristics (FMH) of fuel can affect long cycle of polymerization products. There is a mixed solid fuels Pat. U.S. No. 3087844, CL 149-199, Appl. 24.07.59, publ. 30.04.63 based on polybutadiene with terminal carboxyl groups, ammonium perchlorate, aluminum, etc. that has a relative elongation of 10...39%, the strength 4,69...24,8 kg/cm2the modulus of elasticity of 29.9...539 kgf/cm2at a temperature of minus 40 to minus 59°C. To ensure the health charge for certain types of missile systems at a temperature of minus 50°C at the exit of the rocket engine on the regime in the stress-deformed state require elevated FMH. There is a solid rocket propellant according to the patent of Russian Federation №2183608 from 08.08.2000, IPC C06B 25/12, based polybutadienes rubber having a narrow temperature range (minus 50 to plus 50°C). There is a solid rocket fuel for U.S. patent No. 3902935, from 29.01.64, IPC 06D 5/06, which shows that the fuel has low values of FMH. RF patent 2170722 from 31.03.2000, publ. 20.07.201, IPC 06D 5/06, as the closest analogues of, taken by the authors for the prototype has a relative elongation of 29.9...47,1%, the strength of 9.7...32,5 kg/cm2the elastic modulus of 165...900 kgf/cm2at a temperature of minus 50 to minus 70°C, a high level of deformation characteristics at low temperatures. An object of the invention is the creation of a composite solid propellant with a high level of relative movements in the field of positive (up to 60°C)and negative (down to minus 70°C) temperatures and reduced time of curing. The technical result is that the composite solid rocket propellant contains the oxidizer is ammonium perchlorate, polydivinylbenzene rubber with terminal epoxy groups, hardeners - polybutadiene rubber with terminal carboxyl groups, aniline, para-aminobenzoic acid, the plasticizer is a low molecular weight polydivinylbenzene rubber (EDP-0), tributyl phosphate (TBP), di(2-ethylhexyl)-sebacina (DOS), the curing catalyst is zinc stearate, metal fuel is aluminum dispersed and the modifier of combustion - product CSF, used high content of polybutadiene rubber with terminal carboxyl groups in relation to the prototype, in the following ratio, wt.%:
As components are used: The oxidizer is ammonium perchlorate according to OST IN 6-02-62-86. Polydivinylbenzene rubber with terminal epoxy groups on THE 003326-86. Hardeners - polybutadiene rubber with terminal carboxyl groups on THE 00393-99, aniline according to GOST 5819-78, para-aminobenzoic acid (p-ABA) TU 6-09-08-1871-86. Plastificator the s - low-molecular polydivinylbenzene rubber (EDP-0) according to GOST 8728-86, Tributyl phosphate (TBP) TU 2435-305-05763458-01, Di(2-ethylhexyl)-sebacina (DOS) TU 003215-88. The curing catalyst is zinc stearate on THE 6-09-17-316-96. The metal fuel is aluminum dispersed by OST IN 84-1841-80. The modifier of combustion - product USF on OST 6-02-17-78. The invention is shown in the table below examples of implementation in the fuel samples of the present invention in comparison with the prototype. From examples 2, 3, 4, 5 the table shows that the increase in the ratio of polybutadiene rubber with terminal carboxyl groups 0,54...1.1 wt.%, which corresponds 0,11...to 0.2 mol, 5.0...7.1 wt.%, which corresponds to 0.9 mole, polydivinylbenzene rubber with integral epoxy groups in comparison with the prototype allows to obtain the relative movements at positive temperatures (20...60°C) from 42.1 to 70.1 percent and negative temperatures (-50...70°C) in the range from 25.1 to 55.1% while reducing the curing time of the fuel in 45 hours (from 105 to 60 hours). In example 1 it is shown that the use of the fuel composition ratio of 0.5 wt.% polybutadiene rubber with terminal carboxyl groups 4.9 wt.% polydivinylbenzene rubber with terminal epoxy groups is characterized by a large curing time - C, at a sufficiently high level of mechanical properties (elongation, tensile strength, modulus of elasticity). Example 6 shows that the use in the fuel composition of 1.2 wt.% polybutadiene rubber with terminal carboxyl groups of 7.2 wt.% polydivinylbenzene rubber with terminal epoxy groups leads to deterioration of the strength characteristics with a small time curing - 47 p.m. In examples 3 and 4 shows that the metal fuel is aluminum dispersed and the modifier of combustion - product CSF in the claimed limits do not affect the level of mechanical characteristics and time of the curing composition. The proposed composition of the fuel has improved FMH in the whole temperature range and a short curing time. Fuel tested in experimental conditions at FSUE "December" with positive results.
Composite solid rocket propellant comprising the oxidizer is ammonium perchlorate, polydivinylbenzene rubber with terminal epoxy groups, hardeners - polybutadiene rubber with terminal carboxyl groups, aniline, para-aminobenzoic acid, plasticizers - polydivinylbenzene rubber, di(2-ethylhexyl)-sebacina, tributyl phosphate, curing catalyst is zinc stearate, the modifier of combustion, metal fuel is aluminum dispersed, characterized in that as the modifier of combustion use the product for CSF and increased the ratio of polybutadiene rubber with terminal carboxyl groups to polydivinylbenzene rubber with terminal epoxy groups is 0.11...0,2 mol (0,54-1,10 wt.%) 0.9 mol (5,00-7,10 wt.%) accordingly, in the following ratio, wt.%:
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