Cross-linked nitrocellulose propellant formulation
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorJohn C. Allabashi
Life of this patent
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Abstract
1. A propellant formulation comprising the following ingredients: Nitrocellulose Prepolymer of polyglycoladipate and 2,4-tolylene diisocyanate Nitroglycerin Cyclotetramethylenetetranitramine Aluminum 2-Nitrodiphenylamine. 6. A propellant composition consisting essentially of: The prepolymer of polyglycoladipate and 2,4-tolylene diisocyanate; Nitrocellulose, and Nitroglycerin.
Claims8
A propellant formulation comprising the following ingredients:
- Nitrocellulose
- Prepolymer of polyglycoladipate and 2,4-tolylene diisocyanate
- Nitroglycerin
- Cyclotetramethylenetetranitramine
- Aluminum
- 2-Nitrodiphenylamine.
A propellant formulation comprising the following ingredients:
- ______________________________________ Ingredients Percent by weight ______________________________________ Nitrocellulose 9 Prepolymer of polyglycoladipate and 2,4-tolylene diisocyanate 6 Nitroglycerin 26 Cyclotetramethylenetetranitramine 40 Aluminum 18 2-Nitrodiphenylamine 1. ______________________________________
A method for the preparation of a crosslinked propellant which comprises the following steps:
- 1. Dissolving polyglycoladipate and tolylene diisocyanate in nitroglycerin containing 2-nitrodiphenylamine;
- 2. Evacuating the resultant solution to remove air;
- 3. Mixing dry nitrocellulose into said solution until a viscous mixture results;
- 4. Adding cyclotetramethylenetetranitramine to said mixture and stirring thoroughly;
- 5. Stirring aluminum into the mixture for about 15 minutes until a slurry results;
- 6. Vacuum casting said slurry into molds;
- and
- 7. Curing for about five days at 120.degree. F.
A method for the preparation of a propellant grain which comprises
- 1. reacting polyglycoladipate and tolylene diisocyanate to form a prepolymer;
- 2. dissolving said prepolymer in nitroglycerin containing 2-nitrodiphenylamine;
- 3. mixing into the resultant solution nitrocellulose, cyclotetramethylenetetranitramine, and aluminum in the order named until a homogenous slurry results;
- 4. casting said slurry into molds;
- and
- 5. curing for five days at 120.degree. F.
A method for the preparation of crosslinked nitrocellulose which comprises:
- reacting the prepolymer of polyglycoladipate and 2,4-tolylene diisocyanate with nitrocellulose and nitroglycerin at ambient temperature for about three minutes.
A propellant composition consisting essentially of:
- the prepolymer of polyglycoladipate and 2,4-tolylene diisocyanate;
- nitrocellulose, and
- nitroglycerin.
A propellant composition consisting essentially of:
- ______________________________________ Ingredients Percent by weight ______________________________________ Prepolymer of polyglycoladipate and 2,4-tolylene diisocyanate and nitrocellulose;
- 35 Nitroglycerin 65. ______________________________________
A composition comprising
- a crosslinking agent consisting of a prepolymer which is a solvent for nitrocellulose and miscible with nitroglycerin;
- nitrocellulose;
- and,
- nitroglycerin.
Dependencies are inferred from the claim text.