CA2167386A1 - Method for Preparing Anhydrous Tetrazole Gas Generant Compositions - Google Patents

Method for Preparing Anhydrous Tetrazole Gas Generant Compositions

Info

Publication number
CA2167386A1
CA2167386A1 CA2167386A CA2167386A CA2167386A1 CA 2167386 A1 CA2167386 A1 CA 2167386A1 CA 2167386 A CA2167386 A CA 2167386A CA 2167386 A CA2167386 A CA 2167386A CA 2167386 A1 CA2167386 A1 CA 2167386A1
Authority
CA
Canada
Prior art keywords
anhydrous
gas generating
inorganic
group
oxidizer
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.)
Granted
Application number
CA2167386A
Other languages
French (fr)
Other versions
CA2167386C (en
Inventor
Reed J. Blau
Gary K. Lund
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.)
Northrop Grumman Innovation Systems LLC
Original Assignee
Alliant Techsystems Inc.
Thiokol Propulsion Corp.
Cordant Technologies Inc.
Reed J. Blau
Gary K. Lund
Thiokol Corporation
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
Priority claimed from US08/101,396 external-priority patent/US5682014A/en
Priority claimed from US08/178,572 external-priority patent/US5472647A/en
Application filed by Alliant Techsystems Inc., Thiokol Propulsion Corp., Cordant Technologies Inc., Reed J. Blau, Gary K. Lund, Thiokol Corporation filed Critical Alliant Techsystems Inc.
Publication of CA2167386A1 publication Critical patent/CA2167386A1/en
Application granted granted Critical
Publication of CA2167386C publication Critical patent/CA2167386C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • C06B43/00—Compositions characterised by explosive or thermic constituents not provided for in groups C06B25/00 - C06B41/00
    • 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
    • C06B21/0066—Shaping the mixture by granulation, e.g. flaking
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06D—MEANS FOR GENERATING SMOKE OR MIST; GAS-ATTACK COMPOSITIONS; GENERATION OF GAS FOR BLASTING OR PROPULSION (CHEMICAL PART)
    • C06D5/00—Generation of pressure gas, e.g. for blasting cartridges, starting cartridges, rockets
    • C06D5/06—Generation of pressure gas, e.g. for blasting cartridges, starting cartridges, rockets by reaction of two or more solids

Abstract

The present method involves preparing an anhydrous gas generant by forming a quantity of granulated anhydrous gas generating material into a shaped charge wherein the gas generating material is an oxidizer and at least one fuel selected from the group consisting of tetrazoles. More particularly, a preferred method involves preparing an anhydrous gas generating composition by preparing a slurry of gas generating material which comprises oxidizer particles larger than 1 micron and fuel particles larger than 1 micron wherein the oxidizer is selected from the group consisting of a metal peroxide, an inorganic nitrate, an inorganic nitrite, a metal oxide, a metal hydroxide, an inorganic chlorate, an inorganic perchlorate or a mixture thereof, and the fuel is selected from the group consisting of tetrazoles; granulating the slurry to obtain granules of a selected weight average particle size; drying the granules to an anhydrous condition; and pelletizing the anhydrous granules.
CA002167386A 1993-08-02 1994-08-02 Method for preparing anhydrous tetrazole gas generant compositions Expired - Fee Related CA2167386C (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US08/101,396 US5682014A (en) 1993-08-02 1993-08-02 Bitetrazoleamine gas generant compositions
US08/162,596 US5501823A (en) 1993-08-02 1993-12-03 Preparation of anhydrous tetrazole gas generant compositions
US08/162,596 1994-01-07
US08/178,572 1994-01-07
US08/178,572 US5472647A (en) 1993-08-02 1994-01-07 Method for preparing anhydrous tetrazole gas generant compositions
US08/101,396 1994-01-07
PCT/US1994/008781 WO1995004014A1 (en) 1993-08-02 1994-08-02 Method for preparing anhydrous tetrazole gas generant compositions

Publications (2)

Publication Number Publication Date
CA2167386A1 true CA2167386A1 (en) 1995-02-09
CA2167386C CA2167386C (en) 1999-10-05

Family

ID=27379179

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002167386A Expired - Fee Related CA2167386C (en) 1993-08-02 1994-08-02 Method for preparing anhydrous tetrazole gas generant compositions

Country Status (5)

Country Link
EP (1) EP0723530A4 (en)
JP (1) JPH09501138A (en)
AU (1) AU7553794A (en)
CA (1) CA2167386C (en)
WO (1) WO1995004014A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5682014A (en) * 1993-08-02 1997-10-28 Thiokol Corporation Bitetrazoleamine gas generant compositions
US5883330A (en) * 1994-02-15 1999-03-16 Nippon Koki Co., Ltd. Azodicarbonamide containing gas generating composition
AU1448695A (en) * 1995-01-26 1996-08-14 Thiokol Corporation Methods of preparing gas generant formulations
GB9505623D0 (en) * 1995-03-21 1995-05-10 Ici Plc Process for the preparation of gas-generating compositions
US5472535A (en) * 1995-04-06 1995-12-05 Morton International, Inc. Gas generant compositions containing stabilizer
US5514230A (en) * 1995-04-14 1996-05-07 Automotive Systems Laboratory, Inc. Nonazide gas generating compositions with a built-in catalyst
US5756929A (en) * 1996-02-14 1998-05-26 Automotive Systems Laboratory Inc. Nonazide gas generating compositions
EP0944562B1 (en) * 1996-08-16 2005-11-23 Automotive Systems Laboratory Inc. Autoignition compositions for inflator gas generators
US5872329A (en) * 1996-11-08 1999-02-16 Automotive Systems Laboratory, Inc. Nonazide gas generant compositions

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2004620C3 (en) * 1970-02-03 1975-07-17 Dynamit Nobel Ag, 5210 Troisdorf Compressed gas generating charges
US3909322A (en) * 1970-08-03 1975-09-30 Us Navy Solid gas generating and gun propellant compositions containing a nitroaminotetrazole salt
US3862866A (en) * 1971-08-02 1975-01-28 Specialty Products Dev Corp Gas generator composition and method
FR2228043B1 (en) * 1972-10-17 1977-03-04 Poudres & Explosifs Ste Nale
US3920575A (en) * 1973-03-03 1975-11-18 Asahi Chemical Ind Gas generating composition and method of preparing compression molded articles therefrom
US3971729A (en) * 1973-09-14 1976-07-27 Specialty Products Development Corporation Preparation of gas generation grain
GB1443547A (en) * 1973-12-17 1976-07-21 Canadian Ind Metal oxide/azide gas generating compositions
US3940298A (en) * 1974-12-06 1976-02-24 The United States Of America As Represented By The Secretary Of The Navy Thermal laser pumped with high nitrogen content propellants
US4533416A (en) * 1979-11-07 1985-08-06 Rockcor, Inc. Pelletizable propellant
FR2494263A1 (en) * 1980-11-14 1982-05-21 Poudres & Explosifs Ste Nale METHOD FOR MANUFACTURING GRANULATED FINE PROPULSIVE POWDERS AND POWDERS THUS OBTAINED
US4369079A (en) * 1980-12-31 1983-01-18 Thiokol Corporation Solid non-azide nitrogen gas generant compositions
US4450768A (en) * 1981-01-12 1984-05-29 Schlumberger Technical Corporation Shaped charge and method of making it
US5053086A (en) * 1985-03-15 1991-10-01 The United States Of America As Represented By The Secretary Of The Navy Gas generant compositions containing energetic high nitrogen binders
US4929290A (en) * 1988-07-25 1990-05-29 Hercules Incorporated Crash bag propellant composition and method for generating nitrogen gas
US4948439A (en) * 1988-12-02 1990-08-14 Automotive Systems Laboratory, Inc. Composition and process for inflating a safety crash bag
US5034070A (en) * 1990-06-28 1991-07-23 Trw Vehicle Safety Systems Inc. Gas generating material
US5035757A (en) * 1990-10-25 1991-07-30 Automotive Systems Laboratory, Inc. Azide-free gas generant composition with easily filterable combustion products
DE4108225C1 (en) * 1991-03-14 1992-04-09 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung Ev, 8000 Muenchen, De
DE4220019A1 (en) * 1991-06-21 1992-12-24 Dynamit Nobel Ag DRIVING AGENT FOR GAS GENERATORS
US5197758A (en) * 1991-10-09 1993-03-30 Morton International, Inc. Non-azide gas generant formulation, method, and apparatus
US5125684A (en) * 1991-10-15 1992-06-30 Hercules Incorporated Extrudable gas generating propellants, method and apparatus

Also Published As

Publication number Publication date
WO1995004014A1 (en) 1995-02-09
CA2167386C (en) 1999-10-05
EP0723530A4 (en) 1996-09-25
AU7553794A (en) 1995-02-28
EP0723530A1 (en) 1996-07-31
JPH09501138A (en) 1997-02-04

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