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GB1408554A - Crosslinking of double base propellants - Google Patents

Crosslinking of double base propellants

Info

Publication number
GB1408554A
GB1408554A GB3917766A GB3917766A GB1408554A GB 1408554 A GB1408554 A GB 1408554A GB 3917766 A GB3917766 A GB 3917766A GB 3917766 A GB3917766 A GB 3917766A GB 1408554 A GB1408554 A GB 1408554A
Authority
GB
United Kingdom
Prior art keywords
cross
added
linking agent
under reduced
reduced pressure
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
Application number
GB3917766A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
US Department of Navy
Original Assignee
US Department of Navy
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by US Department of Navy filed Critical US Department of Navy
Priority to GB3917766A priority Critical patent/GB1408554A/en
Publication of GB1408554A publication Critical patent/GB1408554A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B21/00—Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
    • C06B21/0033—Shaping the mixture
    • C06B21/0058—Shaping the mixture by casting a curable composition, e.g. of the plastisol type
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B25/00—Compositions containing a nitrated organic compound
    • C06B25/18—Compositions containing a nitrated organic compound the compound being nitrocellulose present as 10% or more by weight of the total composition
    • C06B25/24—Compositions containing a nitrated organic compound the compound being nitrocellulose present as 10% or more by weight of the total composition with nitroglycerine
    • C06B25/26—Compositions containing a nitrated organic compound the compound being nitrocellulose present as 10% or more by weight of the total composition with nitroglycerine with an organic non-explosive or an organic non-thermic component
    • 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
    • C06B45/04—Compositions or products which are defined by structure or arrangement of component of product comprising solid particles dispersed in solid solution or matrix not used for explosives where the matrix consists essentially of nitrated carbohydrates or a low molecular organic explosive
    • C06B45/06—Compositions or products which are defined by structure or arrangement of component of product comprising solid particles dispersed in solid solution or matrix not used for explosives where the matrix consists essentially of nitrated carbohydrates or a low molecular organic explosive the solid solution or matrix containing an organic component
    • C06B45/10—Compositions or products which are defined by structure or arrangement of component of product comprising solid particles dispersed in solid solution or matrix not used for explosives where the matrix consists essentially of nitrated carbohydrates or a low molecular organic explosive the solid solution or matrix containing an organic component the organic component containing a resin
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B15/00—Preparation of other cellulose derivatives or modified cellulose, e.g. complexes
    • C08B15/10—Crosslinking of cellulose

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Emergency Medicine (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Dispersion Chemistry (AREA)
  • Molecular Biology (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

1408554 Propellants USA NAVY SECRETARY OF 1 Sept 1966 39177/66 Heading C1D A propellant composition comprises nitrocellulose, a solid oxidizer, a metal fuel, and a liquid organic nitrate plasticizer, and the nitrocellulose is reacted with a cross-linking agent containing at least two isocyanate groups and a cross-linking catalyst, in order to increase the tensile strength and modulus of the propellant and to decrease its elongation. The solid oxidizer may be ammonium perchlorate, nitroguanidine, HMX, or RDX. The metal fuel used is aluminium; carboranylmethyl acrylate may be added as a liquid fuel. Organic nitrate plasticizers referred to are the explosive compounds nitroglycerine, diethylene glycol dinitrate, triethylene glycol dinitrate, and trimethylol methane trinitrate; a non-explosive ester, ketone, nitrile, or nitro compound is mixed with the explosive compound. The preferred cross-linking agent is 2,4-tolylene diisocyanate, but other isocyanates are referred to. The cross-linking catalyst may be ferric acetylacetonate, lead 2-ethyl hexoate, or dibutyl tin diacetate. Stabilizers which may be added are 2-nitrodiphenylamine, ethyl centralite, and resorcinol diacetate. In examples, other ingredients not referred to specifically above are triacetin, di-n-propyl adipate, ferric oxide, calcium phosphate, dioctyl phthalate, and diallyl phthalate. Methods of manufacture of the composition are as follows: (a) the ingredients, except the cross-linking agent, are mixed with methylene chloride, most of which is removed by heating under reduced pressure, the cross-linking agent is added, and the product cured by heat; (b) all the components are stirred together under reduced pressure and cured by heat; (c) solid components are added to a solution of the soluble ingredients in the organic nitrate plasticizer under reduced pressure.
GB3917766A 1966-09-01 1966-09-01 Crosslinking of double base propellants Expired GB1408554A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3917766A GB1408554A (en) 1966-09-01 1966-09-01 Crosslinking of double base propellants

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3917766A GB1408554A (en) 1966-09-01 1966-09-01 Crosslinking of double base propellants

Publications (1)

Publication Number Publication Date
GB1408554A true GB1408554A (en) 1975-10-01

Family

ID=10408104

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3917766A Expired GB1408554A (en) 1966-09-01 1966-09-01 Crosslinking of double base propellants

Country Status (1)

Country Link
GB (1) GB1408554A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2146014A (en) * 1980-10-03 1985-04-11 Jet Research Center Pyrotechnic compositions for severing conduits
GB2257968A (en) * 1983-06-30 1993-01-27 Poudres & Explosifs Ste Nale Preparation of composite double base propellants
GB2258230A (en) * 1982-06-25 1993-02-03 Poudres & Explosifs Ste Nale Production of double-base propergol propellant blocks
CN117362139A (en) * 2023-10-27 2024-01-09 湖北航天化学技术研究所 A method to improve the mechanical properties of electronically controlled solid propellant

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2146014A (en) * 1980-10-03 1985-04-11 Jet Research Center Pyrotechnic compositions for severing conduits
GB2258230A (en) * 1982-06-25 1993-02-03 Poudres & Explosifs Ste Nale Production of double-base propergol propellant blocks
GB2257968A (en) * 1983-06-30 1993-01-27 Poudres & Explosifs Ste Nale Preparation of composite double base propellants
CN117362139A (en) * 2023-10-27 2024-01-09 湖北航天化学技术研究所 A method to improve the mechanical properties of electronically controlled solid propellant

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Legal Events

Date Code Title Description
PS Patent sealed
PLE Entries relating assignments, transmissions, licences in the register of patents
PLNP Patent lapsed through nonpayment of renewal fees