The United States of America as represented by the Secretary of the Navy
대리인 / 주소
Zimmerman, Fredric J.
인용정보
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6
초록
The invention relates to a novel process for the production of casting powder with high ntirocellulose content, and casting multiple-base rocket propellant including nitroglycerin formulated from such casting powder.
대표청구항▼
It is claimed: 1. A process for producing double base casting powder, comprising: mixing ethanol-wet nitrocellulose and additives to form an ethanol-wet nitrocellulose mixture with additives; adding to the ethanol-wet nitrocellulose mixture with additives, a nitroglycerine solution comprising nitro
It is claimed: 1. A process for producing double base casting powder, comprising: mixing ethanol-wet nitrocellulose and additives to form an ethanol-wet nitrocellulose mixture with additives; adding to the ethanol-wet nitrocellulose mixture with additives, a nitroglycerine solution comprising nitroglycerine and 2-NDPA dissolved in acetone and further mixing to form a nitroglycerine mixture; adding ethanol to the nitroglycerine mixture and further mixing to form a nitroglycerine mixture with increased ethanol content; adding ethanol and diethyl ether to the nitroglycerine mixture with increased ethanol content to from a resultant mixture; and post-processing the resultant mixture to form the double base casting powder. 2. The process of claim 1, further comprising evaporating a portion of the acetone and the ethanol of the nitroglycerine mixture with increased ethanol content. 3. The process of claim 1, wherein the ethanol-wet nitrocellulose mixture with additives comprises by weight about 90%-about 95% said ethanol wet nitrocellulose, about 2%-about 4% lead beta-resorcylate, about 2%-about 4% lead salicylate, about 0.2%-about 0.4% carbon black, and about 1%-about 2% of 2-NDPA. 4. The process of claim 1, wherein the ethanol-wet nitrocellulose mixture with additives comprises by weight about 92.5% said ethanol wet nitrocellulose, about 2.8% lead beta-resorcylate, about 2.8% lead salicylate, about 0.3% carbon black, and about 1.7% of 2-NDPA. 5. The process of claim 1, wherein the nitroglycerine solution comprises by weight about 50%-about 70% said nitroglycerine, about 30%-about 50% said acetone, and about 0.3%-about 1.0% of said 2-NDPA. 6. The process of claim 1, wherein the nitroglycerine solution comprises by weight about 59.9% said nitroglycerin, about 39.5% said acetone, and about 0.6% of said 2-NDPA. 7. The process of claim 1, wherein the additives are selected from at least one of burn rate modifiers and stabilizers. 8. The process of claim 1, wherein the additives are at least two members selected from 2-NDPA, lead beta-resorcylate, lead salicylate, and carbon black. 9. The process of claim 7, wherein the additives are 2-NDPA, lead beta-resorcylate, lead salicylate, and carbon black. 10. The process of claim 1, wherein the nitroglycerine solution comprises an amount between about 25%-about 35% of the weight of the ethanol-wet nitrocellulose. 11. The process of claim 1, wherein the nitroglycerine solution comprises an amount of about 30% of the weight of the ethanol-wet nitrocellulose. 12. The process of claim 1, wherein the ethanol, which is added to the nitroglycerine mixture with increased ethanol content, is in an amount of between about 2%-about 8% of the weight of the ethanol-wet nitrocellulose. 13. The process of claim 11, wherein the ethanol, which is added to the nitroglycerine mixture with increased ethanol content, is in an amount of about 4.5% of the weight of the ethanol-wet nitrocellulose. 14. The process of claim 1, wherein the diethyl ether, which is added to the nitroglycerine mixture with increased ethanol content, is in an amount between about 10%-about 20% of the weight of the ethanol-wet nitrocellulose. 15. The process of claim 13, wherein the diethyl ether, which is added to the nitroglycerine mixture with increased ethanol content, is in an amount of about 14.5% of the weight of the ethanol-wet nitrocellulose. 16. The process of claim 1, wherein the ethanol, which is added to the nitroglycerine mixture, is in an amount of between about 3%-about 6% of the weight of the ethanol-wet nitrocellulose. 17. The process of claim 1, wherein the ethanol, which is added to the nitroglycerine mixture, is an amount of about 4.3% of the weight of the ethanol-wet nitrocellulose.
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이 특허에 인용된 특허 (6)
Elrick Donald E. (Rawlings MD) Gilbert Harry (Cumberland MD), Crosslinked carboxyl containing polymer and nitrocellulose as solid propellant binder.
Zeller Bernard M. (Brunoy FRX) Couturier Rene J. (Mennecy FRX) Tribot Robert A. (Hiersac FRX), Granular propellant powder based on nitrocellulose, oily nitrate ester and polyvinyl nitrate, and process.
Lagreze Richard (La Couronne FRX) Malescot Georges (Angouleme FRX), Process for the manufacture of a double-base propellent composition with low flame-glare emission.
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