GB1277247A - Improvements in or relating to caseless propellent charges - Google Patents

Improvements in or relating to caseless propellent charges

Info

Publication number
GB1277247A
GB1277247A GB43698/69A GB4369869A GB1277247A GB 1277247 A GB1277247 A GB 1277247A GB 43698/69 A GB43698/69 A GB 43698/69A GB 4369869 A GB4369869 A GB 4369869A GB 1277247 A GB1277247 A GB 1277247A
Authority
GB
United Kingdom
Prior art keywords
outer layer
charge
explosive charge
tablet
combustion
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
GB43698/69A
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.)
Dynamit Nobel AG
Original Assignee
Dynamit Nobel AG
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 Dynamit Nobel AG filed Critical Dynamit Nobel AG
Publication of GB1277247A publication Critical patent/GB1277247A/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
    • C06B45/00—Compositions or products which are defined by structure or arrangement of component of product
    • C06B45/18—Compositions or products which are defined by structure or arrangement of component of product comprising a coated component
    • C06B45/20—Compositions or products which are defined by structure or arrangement of component of product comprising a coated component the component base containing an organic explosive or an organic thermic component
    • C06B45/22—Compositions or products which are defined by structure or arrangement of component of product comprising a coated component the component base containing an organic explosive or an organic thermic component the coating containing an organic compound
    • 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
    • C06B21/0083—Treatment of solid structures, e.g. for coating or impregnating with a modifier
    • 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
    • C06B45/18—Compositions or products which are defined by structure or arrangement of component of product comprising a coated component
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
    • F42B5/02—Cartridges, i.e. cases with charge and missile
    • F42B5/18—Caseless ammunition; Cartridges having combustible cases
    • F42B5/192—Cartridge cases characterised by the material of the casing wall
    • F42B5/196—Coatings

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Paints Or Removers (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Laminated Bodies (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

1277247 Propellant charges DYNAMIT NOBELAG 3 Sept 1969 [4 Sept 1968] 43698/69 Heading F3A A caseless propellant charge for use in boltfiring appliances percussion devices, control elements and quick action switches, comprises a combustible explosive charge having a firmly adhering outer layer capable of protecting the explosive charge against unintentional ignition or combustion and also against contamination and absorption of moisture, the outer layer being capable of ashless combustion during combustion of the propellant charge. The explosive charge is nitrocellulose, polyvinyl nitrate, nitroguanidine or nitropenta. The outer layer is produced by degradation of the surface of the charge with a sulphide or hydrosulphide solution. In addition to, or instead of, this surface treatment, the protective layer is constituted by a resin which is formed by chemical reaction in situ or is deposited from a volatile solvent. Examples of suitable resins are polyurethane, polyglycide, polyacrylates, polybutadienes, polyvinyl acetate, methylcellulose, cellulose glycollates, aromatic glycide ethers, polyethylenepolyvinyl acetate polymers. The resins may be applied by dipping, brushing, precipitation or applied as foil during moulding of the explosive charge. In an example, moistened fibrous nitrocellulose is moulded into the form of a tablet with a depression in one side and a few drops of priming liquid are introduced into the depression and absorbed by the fibres. The tablet is then drawn through a bath consisting of a mixture of polyester glycol, toluylene diisocyanate, dimethyl glycol phthalate and methylene chloride. After drying the tablet is heated to produce the adherent outer layer.
GB43698/69A 1968-09-04 1969-09-03 Improvements in or relating to caseless propellent charges Expired GB1277247A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1796118A DE1796118C3 (en) 1968-09-04 1968-09-04 Caseless propellant charge compact and process for its manufacture

Publications (1)

Publication Number Publication Date
GB1277247A true GB1277247A (en) 1972-06-07

Family

ID=5708368

Family Applications (1)

Application Number Title Priority Date Filing Date
GB43698/69A Expired GB1277247A (en) 1968-09-04 1969-09-03 Improvements in or relating to caseless propellent charges

Country Status (16)

Country Link
JP (1) JPS4942531B1 (en)
AT (1) AT290362B (en)
BE (1) BE738397A (en)
BR (1) BR6912030D0 (en)
CA (1) CA936697A (en)
CH (1) CH500053A (en)
DE (1) DE1796118C3 (en)
DK (1) DK135678C (en)
ES (1) ES370815A1 (en)
FR (1) FR2017366A1 (en)
GB (1) GB1277247A (en)
IL (1) IL32928A (en)
NL (1) NL6913424A (en)
NO (1) NO122518B (en)
PL (1) PL80202B1 (en)
YU (1) YU34107B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2709037A1 (en) * 1977-03-02 1978-09-07 Dynamit Nobel Ag FIRM-WEATHER-PROOF DRIVE KIT FOR BOLT DRIVE CARTRIDGES
DE2710451C2 (en) * 1977-03-10 1990-11-15 Rheinmetall GmbH, 4000 Düsseldorf Surface protection coating for ammunition with a combustible case or caseless ammunition
FR2444251A1 (en) * 1978-12-15 1980-07-11 Poudres & Explosifs Ste Nale COMBUSTIBLE OBJECTS, AND IN PARTICULAR COMBUSTIBLE SOCKETS, RESISTANT TO HEAT
DE3006475C2 (en) * 1980-02-21 1986-10-30 Société Anonyme PRB, Brüssel / Bruxelles Fuel for base-bleed gas generators, process for its production and for the production of a propellant from this fuel
FR2590360B1 (en) * 1985-11-19 1989-06-30 Poudres & Explosifs Ste Nale MIXED LOADS FOR AMMUNITION WITH SOCKET COMPRISING FRAGMENTABLE SPHERICAL LOADS
WO2001019759A1 (en) * 1999-09-15 2001-03-22 Dynamit Nobel Gmbh Explosivstoff- Und Systemtechnik Propellant charge powder having low temperature dependency

Also Published As

Publication number Publication date
YU203669A (en) 1978-06-30
DE1796118C3 (en) 1978-08-17
AT290362B (en) 1971-05-25
DE1796118B2 (en) 1977-12-08
IL32928A (en) 1973-07-30
BE738397A (en) 1970-02-16
DE1796118A1 (en) 1972-02-17
IL32928A0 (en) 1970-12-24
CA936697A (en) 1973-11-13
DK135678B (en) 1977-06-06
JPS4942531B1 (en) 1974-11-15
FR2017366A1 (en) 1970-05-22
DK135678C (en) 1977-11-14
BR6912030D0 (en) 1973-03-20
YU34107B (en) 1978-12-31
PL80202B1 (en) 1975-08-30
NL6913424A (en) 1970-03-06
CH500053A (en) 1970-12-15
NO122518B (en) 1971-07-05
ES370815A1 (en) 1971-07-01

Similar Documents

Publication Publication Date Title
US5670735A (en) Propellant igniting system and method of making the same
GB1277247A (en) Improvements in or relating to caseless propellent charges
GB1211658A (en) Combustible cartridge case
GB1096217A (en) Gas generator
US3927616A (en) Combustible cartridge case
CA1156839A (en) Fragmentable charges of propellant powder coated with polyvinyl nitrate, and the process for their manufacture
ES404944A1 (en) Pyrotechnic lacquer
GB1291391A (en) Process for the external surface treatment of non-metallic ammunition casings such as cartridge cases, and the so treated casings
US3157127A (en) Solid propellant grain with cellulose acetate coating
US3280746A (en) Combustible cartridge case of felted fibrous material with synthetic resin and process
GB660789A (en) Propellant charge
DE2458877C2 (en) Combustible protective cover against thermal influences for projectile propellants for automatic weapons
GB2075486A (en) Process for deterrent coating of triple base propellant compositions
DE69128177T2 (en) Surface coatings for propellant charges containing elastomer
SU385982A1 (en) GLUE COMPOSITION
GB949086A (en) Improvements in composite propellants and the like
GB1428876A (en) Rigid propellant charge and process for its manufacture
GB995026A (en) Improved propellant container and material therefor
GB805958A (en) Improvements in blasting assembly
IL62123A (en) Propellant for projectile gas generators and its manufacture
GB1034393A (en) Primers for igniting propellent charges
US1156969A (en) Artificial filament and other product.
FR2240258A1 (en) Combustible moulding material for shell cartridges - contg. polyvinylnitrate, nitrocellulose and nitro-2-diphenyl methane as stabiliser
GB1316314A (en) Hot-moulded solid propellant charges and method of moulding such charges
GB918262A (en) Rocket engine

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee