US3719604A - Pressurizing-gas-producing charges containing an aminoguanidine tetrazole and an oxygen-liberating or gas-evolving additive - Google Patents
Pressurizing-gas-producing charges containing an aminoguanidine tetrazole and an oxygen-liberating or gas-evolving additive Download PDFInfo
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- US3719604A US3719604A US00110601A US3719604DA US3719604A US 3719604 A US3719604 A US 3719604A US 00110601 A US00110601 A US 00110601A US 3719604D A US3719604D A US 3719604DA US 3719604 A US3719604 A US 3719604A
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- 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
Definitions
- These materials may also consist of mixtures of oxygenliberating substances, such as potassium chlorate, and gas-evolving substances such as ammonium nitrate or guanidine nitrate. (See, for example, German patents 854,770, 851,919, and 909,424.)
- one aspect of this invention resides in novel pressurizinggas-producing charges, particularly for use in pressurizing-gas-actuated devices, which are characterized by the fact that they comprise from 40 to 100 weight percent aminoguanidine salts of azotetrazole and/or ditetrazole.
- Other components of the composition may include oxygen-liberating and/or other gas-evolving substances which do not cause detonation. These may be used singly or in combination in proportion of 0 to 60 weight percent.
- Azotetrazole has the formula and ditetrazole has the formula N N 111 1 I l
- the hydrogen atoms of these compounds have an acid reaction and consequently form, with aminoguanidine, the corresponding salts.
- These salts are prepared, for example, by mixing aqueous solutions of salts of aminoguanidine, such as aminoguanidine sulfate, with aqueous solutions of alkali salts of said tetrazoles.
- the insoluble salt compounds suitable for use in accordance with the present invention precipitate from this reaction mixture and can be recovered by conventional chemical engineering techniques.
- Suitable oxygen-liberating optional additives are chlorates, perchlorates and nitrates of inorganic bases which are all preferred. Nitroguanidine, guanidine nitrate, nitrocellulose, nitropolystyrene, polynitrophenols, polynitrocresols or the like can also be incorporated as oxygen liberators.
- Soleiy gas-evolving optional additives which are suitable are, for example, ammonium oxalate, urea, aminoguanidine, sugar, tartaric acid or the like.
- Catalysts promoting decomposition such as compounds of vanadium, tungsten, molybdenum, chromium, cobalt or the like, particularly in the highest degree of oxidation of the metal, may advantageously be added to the compositions of this invention in a proportion of from 0.5 to 5 weight percent, referred to the total mixture.
- compositions of this invention are prepared by simple mixing of the ingredients.
- the resultant solid composition may be pressed, but this is not absolutely necessary.
- EXAMPLE 1 A mixture of 500 g of azotetrazole-aminoguanidine salt and 500 g of barium nitrate was pressed into bodies which were then ignited in a pressure pipe with nozzle. A strong gas jet was thus produced. The mixture furnished 350 cc gas/g of mixture. It was not ignited by the shock of a falling weight of 2 kg dropped from a height of 2 meters.
- EXAMPLE 2 An intimate mixture of 700 g of ditetrazoleaminoguanidine salt and 300 g of potassium nitrate was pressed into bodies which were ignited in a pressure pipe with nozzle by the use of an electric primer pellet. The quantity of gas evolved was 400 cc/g. The mixture was not ignited by the shock of a falling weight of 2 kg dropped from a height of 2 meters.
- a pressure composition was prepared from 50 g of barium nitrate (Ba(NO 50 g of azotetrazoleaminoguanidine salt, 4 g of vanadium pentoxide V 0 and 15 g of an aluminum-titanium alloy. After ignition of the composition by means of an ignition mixture disposed in a central ignition tube, a reaction of the composition set in with evolution of heat. The heat generated was 768 cal/g.
- barium nitrate Ba(NO 50 g of azotetrazoleaminoguanidine salt, 4 g of vanadium pentoxide V 0 and 15 g of an aluminum-titanium alloy.
- EXAMPLE 4 A pressure composition was prepared from 40 g of barium nitrate (Ba(NO and 60 g of azotetrazoleaminoguanidine salt. After ignition of the composition by means of the ignition mixture disposed in a central ignition tube, a reaction of the composition set in with evolution of heat. The heat generated was 613 cal/g, Volumer, of evolved gas: 440 em /g.
- EXAMPLE 5 A pressure composition was prepared from 45 g of barium nitrate (Ba(NO 45 g of azotetrazoleaminoguanidine salt and g of amorphous boron. After ignition of the composition by means of the ignition mixture disposed in a central ignition tube, a reaction of the composition set in with evolution of heat. The heat generated was 826 cal/g, amount of evolved gas: 520 em /g.
- EXAMPLE 6 A pressure composition was prepared from 30 g of barium nitrate (Ba(NO 50 g of azotetrazoleaminoguanidine salt and g of potassium nitrate (K- NO After ignition of the composition by means of the ignition mixture disposed in a central ignition tube, a reaction of the composition set in with evolution of heat. The heat generated was 687 cal/g.
- a gas-producing composition comprising an aminoguanidine salt of at least one member selected from the group consisting of azotetrazole of the formula:
- II-N N and an oxygen-liberating additive or a gas-evolving additive selected from the group consisting of ammonium oxalate, urea, aminoguanidine, sugar and tartaric acid present in an amount up to 60 weight percent of the composition.
- an oxygen-liberating additive or a gas-evolving additive selected from the group consisting of ammonium oxalate, urea, aminoguanidine, sugar and tartaric acid present in an amount up to 60 weight percent of the composition.
- oxygen-liberating additive is a member selected from 5 the group consisting of inorganic chlorates, perchlorates and nitrates; nitroguanidine; guanidine nitrate; nitrocellulose; nitropolystyrene;
- an oxygen-liberating additive or a gas-evolving additive selected from the group consisting of ammonium oxalate, urea, aminoguanidine, sugar, and tartaric acid present in an amount up to 60 weight percent of the composition.
- oxygen-liberating additive is a member selected from the group consisting of inorganic chlorates, perchlorates and nitrates nitroguanidine; guanidine nitrate; nitropolystyrene; nitrocellulose; polynitrophenols; and polynitrocresols.
- oxygen-liberating or gas-evolving substance additionally contains about 0.5 to 5 weight percent, referred to the entire composition, of a metal compound catalyst wherein said metal is a member selected from the group consisting of vanadium, tungsten, molybdenum, chromium and cobalt.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Air Bags (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Catalysts (AREA)
- Treating Waste Gases (AREA)
Abstract
Novel gas-generating compositions comprising 40 to 100 weight percent aminoguanidine salts of azotetrazole of the formula:
OR OF DITETRAZOLE OF THE FORMULA:
Optional other components of such compositions include oxygenliberating or other gas-evolving substances which may be present in 0 to 60 weight percent of the composition. There are also disclosed pressurizing gas-actuated devices utilizing these compositions.
OR OF DITETRAZOLE OF THE FORMULA:
Optional other components of such compositions include oxygenliberating or other gas-evolving substances which may be present in 0 to 60 weight percent of the composition. There are also disclosed pressurizing gas-actuated devices utilizing these compositions.
Description
United States Patent 11 1 1111 3,719,604 Prior et al. 1 March 6, 1973 PRESSURIZlNG-GAS-PRODUCING [57] ABSTRACT CHARGES CONTAINING AN Novel gas-generating compositions comprising 40 to AMINOGUANIDINE TETRAZOLE AND 100 weight percent aminoguanidine salts of AN OXYGEN-LIBERATING OR GAS- azotetrazole of the formula:
EVOLVING ADDITIVE 1 Inventors 2921121 95521, reiiqqr allls q ml Siegelin, Nuremberg, both of o Germany 'll, [73] Assignee: Dynamit Nobel AG, Troisdorf, Ger- N many [22] Filed: Jan. 28, 1971 f f 21 Appl. No.: 110,601
or of ditetrazole of the formula:
[30] Foreign Application Priority Data qw;
| Feb. 3, 1970 Germany ..P 20 04 620.2
c [52] U.S. Cl. ..252/186, 23/281, 252/187, (1
252/4, 252/350, 252/372, 260/157, 260/308, 423/235, 423/240 [51] Int. Cl. ..C06 d 5/00 [58] Field of Search ..252/l86, 187,372, 350, 4; o I h f h 23/28l2; 260/57 308;,23/235 240 ptiona 0t er components 0 sue compos tions mclude oxygen-liberating or other gas-evolving substances which may be present in 0 to 60 weight per- [56] References Cited cent of the composition. There are also disclosed pres- FOREIGN PATENTS OR APPLICATIONS surizing gas-actuated devices utilizing these compositions. 854,770 11/1952 Germany 909,424 4/1954 Germany Primary Examiner- Herbefi i 3 Gig/5f Assistant Examiner-Irwin Gluck AttorneyBurgess, Dinklage & Sprung S Claims, No Drawings PRESSURlZlNG-GAS-PRODUCING CHARGES CONTAINING AN AMINOGUANIDINE TETRAZOLE AND AN OXYGEN-LIBERATING R GAS-EVOLVING ADDITIVE This invention relates to gas-evolving systems. lt more particularly refers to novel gas-evolving systems which are relatively safe from detonation and explosion.
The energy of gases liberated in a chemical reaction is utilized in industry to force liquids or solids out of a container, for example, in fire extinguishes. Other devices make use of this force to actuate slide bars or bolts or to do other work. (See, for example, German patent 854,770, introduction.) 7 7 7 As gas-generating charges, substances or mixtures are known for this purpose which are formulated entirely or largely from combustible, gasand heat-evolving 1 substances. Such substances, for example, as nitrocellulose powder or nitropolystyrene, are capable of burning without any independent feed of oxygen. These materials may also consist of mixtures of oxygenliberating substances, such as potassium chlorate, and gas-evolving substances such as ammonium nitrate or guanidine nitrate. (See, for example, German patents 854,770, 851,919, and 909,424.)
Often the heat generated in these gas-evolving reactions is undesirable, and mixtures have therefore come into use which absorb the heat evolved on oxidation by a concurrent endothermal process. Such mixtures conrain, for example, ammonium oxalate, or hydrocarbons which decompose in an endothermal reaction, such as cyclopentadiene. (German patents 882,825, and 1,150,914), respectively.)
What is desired in all cases is the evolution of as large a quantity of gas as possible, without the explosive spontaneous decomposition of the charge during such gas evolution, and maximum safety in handling, that is to say, a high degree of insensitivity to ignition by friction and shock. In contrast to this desideratum, mixture containing fairly high proportions of guanidine nitrate, for example, have a tendency to explosively decompose, which may result in destruction of the container.
It is therefore an object of this invention to provide a novel gas-generating composition.
Other and additional objects of this invention will become apparent from a consideration of this entire specification, including the claims hereof.
In accord with, and fulfilling these objects, one aspect of this invention resides in novel pressurizinggas-producing charges, particularly for use in pressurizing-gas-actuated devices, which are characterized by the fact that they comprise from 40 to 100 weight percent aminoguanidine salts of azotetrazole and/or ditetrazole. Other components of the composition may include oxygen-liberating and/or other gas-evolving substances which do not cause detonation. These may be used singly or in combination in proportion of 0 to 60 weight percent.
Azotetrazole has the formula and ditetrazole has the formula N N 111 1 I l The hydrogen atoms of these compounds have an acid reaction and consequently form, with aminoguanidine, the corresponding salts. These salts are prepared, for example, by mixing aqueous solutions of salts of aminoguanidine, such as aminoguanidine sulfate, with aqueous solutions of alkali salts of said tetrazoles. The insoluble salt compounds suitable for use in accordance with the present invention precipitate from this reaction mixture and can be recovered by conventional chemical engineering techniques.
Suitable oxygen-liberating optional additives are chlorates, perchlorates and nitrates of inorganic bases which are all preferred. Nitroguanidine, guanidine nitrate, nitrocellulose, nitropolystyrene, polynitrophenols, polynitrocresols or the like can also be incorporated as oxygen liberators.
Soleiy gas-evolving optional additives which are suitable are, for example, ammonium oxalate, urea, aminoguanidine, sugar, tartaric acid or the like.
Catalysts promoting decomposition, such as compounds of vanadium, tungsten, molybdenum, chromium, cobalt or the like, particularly in the highest degree of oxidation of the metal, may advantageously be added to the compositions of this invention in a proportion of from 0.5 to 5 weight percent, referred to the total mixture.
The compositions of this invention are prepared by simple mixing of the ingredients. The resultant solid composition may be pressed, but this is not absolutely necessary.
The following examples serve to illustrate this invention without being in any way limiting thereon.
EXAMPLE 1 A mixture of 500 g of azotetrazole-aminoguanidine salt and 500 g of barium nitrate was pressed into bodies which were then ignited in a pressure pipe with nozzle. A strong gas jet was thus produced. The mixture furnished 350 cc gas/g of mixture. It was not ignited by the shock of a falling weight of 2 kg dropped from a height of 2 meters.
EXAMPLE 2 An intimate mixture of 700 g of ditetrazoleaminoguanidine salt and 300 g of potassium nitrate was pressed into bodies which were ignited in a pressure pipe with nozzle by the use of an electric primer pellet. The quantity of gas evolved was 400 cc/g. The mixture was not ignited by the shock of a falling weight of 2 kg dropped from a height of 2 meters.
EXAMPLE 3 A pressure composition was prepared from 50 g of barium nitrate (Ba(NO 50 g of azotetrazoleaminoguanidine salt, 4 g of vanadium pentoxide V 0 and 15 g of an aluminum-titanium alloy. After ignition of the composition by means of an ignition mixture disposed in a central ignition tube, a reaction of the composition set in with evolution of heat. The heat generated was 768 cal/g.
EXAMPLE 4 A pressure composition was prepared from 40 g of barium nitrate (Ba(NO and 60 g of azotetrazoleaminoguanidine salt. After ignition of the composition by means of the ignition mixture disposed in a central ignition tube, a reaction of the composition set in with evolution of heat. The heat generated was 613 cal/g, Volumer, of evolved gas: 440 em /g.
EXAMPLE 5 A pressure composition was prepared from 45 g of barium nitrate (Ba(NO 45 g of azotetrazoleaminoguanidine salt and g of amorphous boron. After ignition of the composition by means of the ignition mixture disposed in a central ignition tube, a reaction of the composition set in with evolution of heat. The heat generated was 826 cal/g, amount of evolved gas: 520 em /g.
EXAMPLE 6 A pressure composition was prepared from 30 g of barium nitrate (Ba(NO 50 g of azotetrazoleaminoguanidine salt and g of potassium nitrate (K- NO After ignition of the composition by means of the ignition mixture disposed in a central ignition tube, a reaction of the composition set in with evolution of heat. The heat generated was 687 cal/g.
What is claimed is:
1. A gas-producing composition comprising an aminoguanidine salt of at least one member selected from the group consisting of azotetrazole of the formula:
V; HN\ //N f N II o N=N and ditetrazole of the formula:
T| II-N N and an oxygen-liberating additive or a gas-evolving additive selected from the group consisting of ammonium oxalate, urea, aminoguanidine, sugar and tartaric acid present in an amount up to 60 weight percent of the composition.
2. A composition as claimed in claim 1, wherein said oxygen-liberating additive is a member selected from 5 the group consisting of inorganic chlorates, perchlorates and nitrates; nitroguanidine; guanidine nitrate; nitrocellulose; nitropolystyrene;
polynitrophenols; and polynitrocresols.
3. A composition as claimed in claim 1, additionally containing about 0.5 to 5 weight percent, referred to the entire composition, of a metal compound catalyst wherein said metal is a member selected from the group consisting of vanadium, tungsten, molybdenum,
4. A composition as claimed in claim 3, wherein said metal is in its highest valence state. 7
5. In a process for liberating gas under pressure in which a charge comprising an oxygen-liberating or gasevolving mixture is ignited, the improvement to reduce explosive spontaneous decomposition of the charge and improve safety in handling which comprises adding to said charge an aminoguanidine salt of at leastone member selected from the group consisting of azotetrazole of the formula:
1 N=N Ha: 1i
C it C' H-N N 1:1
and ditetrazole of the formula:
and an oxygen-liberating additive or a gas-evolving additive selected from the group consisting of ammonium oxalate, urea, aminoguanidine, sugar, and tartaric acid present in an amount up to 60 weight percent of the composition.
6. An improvement according to claim 5 wherein the oxygen-liberating additive is a member selected from the group consisting of inorganic chlorates, perchlorates and nitrates nitroguanidine; guanidine nitrate; nitropolystyrene; nitrocellulose; polynitrophenols; and polynitrocresols.
7. An improvement according to claim 5 wherein the oxygen-liberating or gas-evolving substance additionally contains about 0.5 to 5 weight percent, referred to the entire composition, of a metal compound catalyst wherein said metal is a member selected from the group consisting of vanadium, tungsten, molybdenum, chromium and cobalt.
8. An improvement according to claim 7 wherein said metal is in its highest valence state.
Claims (7)
1. A gas-producing composition comprising an aminoguanidine salt of at least one member selected from the group consisting of azotetrazole of the formula:
2. A composition as claimed in claim 1, wherein said oxygen-liberating additive is a member selected from the group consisting of inorganic chlorates, perchlorates and nitrates; nitroguanidine; guanidine nitrate; nitrocellulose; nitropolystyrene; polynitrophenols; and polynitrocresols.
3. A composition as claimed in claim 1, additionally containing about 0.5 to 5 weight percent, referred to the entire composition, of a metal compound catalyst wherein said metal is a member selected from the group consisting of vanadium, tungsten, molybdenum, chromium and cobalt.
4. A composition as claimed in claim 3, wherein said metal is in its highest valence state.
5. In a process for liberating gas under pressure in which a charge comprising an oxygen-liberating or gas-evolving mixture is ignited, the improvement to reduce explosive spontaneous decomposition of the charge and improve safety in handling which comprises adding to said charge an aminoguanidine salt of at least one member selected from the group consisting of azotetrazole of the formula:
6. An improvement according to claim 5 wherein the oxygen-liberating additive is a member selected from the group consisting of inorganic chlorates, perchlorates and nitrates nitroguanidine; guanidine nitrate; nitropolystyrene; nitrocellulose; polynitrophenols; and polynitrocresols.
7. An improvement according to claim 5 wherein the oxygen-liberating or gas-evolving substance additionally contains about 0.5 to 5 weight percent, referred to the entire composition, of a metal compound catalyst wherein said metal is a member selected from the group consisting of vanadium, tungsten, molybdenum, chromium and cobalt.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2004620A DE2004620C3 (en) | 1970-02-03 | 1970-02-03 | Compressed gas generating charges |
Publications (1)
Publication Number | Publication Date |
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US3719604A true US3719604A (en) | 1973-03-06 |
Family
ID=5761179
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US00110601A Expired - Lifetime US3719604A (en) | 1970-02-03 | 1971-01-28 | Pressurizing-gas-producing charges containing an aminoguanidine tetrazole and an oxygen-liberating or gas-evolving additive |
Country Status (5)
Country | Link |
---|---|
US (1) | US3719604A (en) |
CA (1) | CA981024A (en) |
DE (1) | DE2004620C3 (en) |
FR (1) | FR2078084A5 (en) |
GB (1) | GB1313619A (en) |
Cited By (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USB235011I5 (en) * | 1971-03-16 | 1975-01-28 | ||
EP0055547A1 (en) * | 1980-12-31 | 1982-07-07 | Morton Thiokol, Inc. | Solid compositions for generating nitrogen, the generation of nitrogen therefrom and inflation of gas bags therewith |
US4601344A (en) * | 1983-09-29 | 1986-07-22 | The United States Of America As Represented By The Secretary Of The Navy | Pyrotechnic fire extinguishing method |
US5015309A (en) * | 1989-05-04 | 1991-05-14 | Morton International, Inc. | Gas generant compositions containing salts of 5-nitrobarbituric acid, salts of nitroorotic acid, or 5-nitrouracil |
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 |
US5160386A (en) * | 1991-11-04 | 1992-11-03 | Morton International, Inc. | Gas generant formulations containing poly(nitrito) metal complexes as oxidants and method |
US5198046A (en) * | 1991-03-14 | 1993-03-30 | Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschund E.V. | Stable, nitrogen-rich composition |
US5197758A (en) * | 1991-10-09 | 1993-03-30 | Morton International, Inc. | Non-azide gas generant formulation, method, and apparatus |
WO1995004015A1 (en) * | 1993-08-02 | 1995-02-09 | Thiokol Corporation | Bitetrazoleamine gas generant compositions and methods of use |
WO1995004016A1 (en) * | 1993-08-02 | 1995-02-09 | Thiokol Corporation | Anhydrous tetrazole gas generant compositions and methods of preparation |
WO1995004014A1 (en) * | 1993-08-02 | 1995-02-09 | Thiokol Corporation | Method for preparing anhydrous tetrazole gas generant compositions |
WO1995004710A1 (en) * | 1993-08-04 | 1995-02-16 | Automotive Systems Laboratory, Inc. | Law residue azide-free gas generant composition |
US5425886A (en) * | 1993-06-23 | 1995-06-20 | The United States Of America As Represented By The Secretary Of The Navy | On demand, non-halon, fire extinguishing systems |
US5428165A (en) * | 1994-01-06 | 1995-06-27 | Thiokol Corporation | Process for making 5-introbarbituric acid and salts thereof |
WO1995019341A2 (en) * | 1994-01-06 | 1995-07-20 | Thiokol Corporation | Process for making 5-nitrobarbituric acid and salts thereof |
US5439251A (en) * | 1992-11-30 | 1995-08-08 | Toyo Kasei Kogyo Company Limited | Method of tetrazole amine salts having improved physical properties for generating gas in airbags |
US5451682A (en) * | 1994-01-10 | 1995-09-19 | Thiokol Corporation | Method for synthesizing 5-aminotetrazole |
US5468866A (en) * | 1994-01-04 | 1995-11-21 | Thiokol Corporation | Methods for synthesizing and processing bis-(1(2)H-tetrazol-5-yl)-amine |
US5514230A (en) * | 1995-04-14 | 1996-05-07 | Automotive Systems Laboratory, Inc. | Nonazide gas generating compositions with a built-in catalyst |
US5516377A (en) * | 1994-01-10 | 1996-05-14 | Thiokol Corporation | Gas generating compositions based on salts of 5-nitraminotetrazole |
US5538567A (en) * | 1994-03-18 | 1996-07-23 | Olin Corporation | Gas generating propellant |
US5641938A (en) * | 1995-03-03 | 1997-06-24 | Primex Technologies, Inc. | Thermally stable gas generating composition |
US5661261A (en) * | 1996-02-23 | 1997-08-26 | Breed Automotive Technology, Inc. | Gas generating composition |
US5783773A (en) * | 1992-04-13 | 1998-07-21 | Automotive Systems Laboratory Inc. | Low-residue azide-free gas generant composition |
US5844164A (en) * | 1996-02-23 | 1998-12-01 | Breed Automotive Technologies, Inc. | Gas generating device with specific composition |
US5866842A (en) * | 1996-07-18 | 1999-02-02 | Primex Technologies, Inc. | Low temperature autoigniting propellant composition |
US5872329A (en) * | 1996-11-08 | 1999-02-16 | Automotive Systems Laboratory, Inc. | Nonazide gas generant compositions |
WO1999046222A2 (en) * | 1998-03-12 | 1999-09-16 | Automotive Systems Laboratory, Inc. | High gas yield non-azide gas generants |
US6306232B1 (en) | 1996-07-29 | 2001-10-23 | Automotive Systems Laboratory, Inc. | Thermally stable nonazide automotive airbag propellants |
US6645325B1 (en) * | 1998-06-01 | 2003-11-11 | Russell R. Nickel | Fast-burning nitrocellulose compositions |
US6764562B1 (en) | 1999-05-12 | 2004-07-20 | Bofors Bepab Ab | Composite gas-generating material for gas-actuated car safety devices |
US20040154711A1 (en) * | 1998-12-30 | 2004-08-12 | Per Sjoberg | Gas-generating material for gas-actuated car safety devices |
US20050257866A1 (en) * | 2004-03-29 | 2005-11-24 | Williams Graylon K | Gas generant and manufacturing method thereof |
WO2006128910A1 (en) * | 2005-06-02 | 2006-12-07 | Ruag Ammotec Gmbh | Pyrotechnic agent |
US20080110536A1 (en) * | 2006-05-05 | 2008-05-15 | Ganta Sudhakar R | Gas generant compositions |
US20080154044A1 (en) * | 2006-05-05 | 2008-06-26 | Ganta Sudhakar R | Gas generant compositions |
US20090008002A1 (en) * | 2006-09-30 | 2009-01-08 | Ganta Sudhakar R | Gas generant compositions |
US9045380B1 (en) | 2007-10-31 | 2015-06-02 | Tk Holdings Inc. | Gas generating compositions |
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DE4034645A1 (en) * | 1990-10-31 | 1992-05-07 | Fraunhofer Ges Forschung | Guanidinium-5,5'-azo-tetrazolate - is stable nitrogen-rich cpd. yielding non-harmful gases upon decomposition |
DE19505568A1 (en) * | 1995-02-18 | 1996-08-22 | Dynamit Nobel Ag | Gas generating mixtures |
SE513315C2 (en) * | 1998-12-30 | 2000-08-21 | Nexplo Bofors Ab | Methods of producing gas generators for gas-powered car safety details and pyrotechnic gas generators prepared in accordance with the method |
-
1970
- 1970-02-03 DE DE2004620A patent/DE2004620C3/en not_active Expired
-
1971
- 1971-01-28 US US00110601A patent/US3719604A/en not_active Expired - Lifetime
- 1971-02-02 FR FR7103450A patent/FR2078084A5/fr not_active Expired
- 1971-02-02 CA CA104,338A patent/CA981024A/en not_active Expired
- 1971-04-19 GB GB2062871A patent/GB1313619A/en not_active Expired
Cited By (63)
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USB235011I5 (en) * | 1971-03-16 | 1975-01-28 | ||
US3925086A (en) * | 1971-03-16 | 1975-12-09 | Minnesota Mining & Mfg | Azotriazole and azotetrazole antifog, antistain and selective desensitizers for silver halide emulsions |
EP0055547A1 (en) * | 1980-12-31 | 1982-07-07 | Morton Thiokol, Inc. | Solid compositions for generating nitrogen, the generation of nitrogen therefrom and inflation of gas bags therewith |
US4601344A (en) * | 1983-09-29 | 1986-07-22 | The United States Of America As Represented By The Secretary Of The Navy | Pyrotechnic fire extinguishing method |
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 |
US5015309A (en) * | 1989-05-04 | 1991-05-14 | Morton International, Inc. | Gas generant compositions containing salts of 5-nitrobarbituric acid, salts of nitroorotic acid, or 5-nitrouracil |
US5198046A (en) * | 1991-03-14 | 1993-03-30 | Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschund E.V. | Stable, nitrogen-rich composition |
US5197758A (en) * | 1991-10-09 | 1993-03-30 | Morton International, Inc. | Non-azide gas generant formulation, method, and apparatus |
US5160386A (en) * | 1991-11-04 | 1992-11-03 | Morton International, Inc. | Gas generant formulations containing poly(nitrito) metal complexes as oxidants and method |
US5783773A (en) * | 1992-04-13 | 1998-07-21 | Automotive Systems Laboratory Inc. | Low-residue azide-free gas generant composition |
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Also Published As
Publication number | Publication date |
---|---|
GB1313619A (en) | 1973-04-18 |
DE2004620B2 (en) | 1974-12-12 |
CA981024A (en) | 1976-01-06 |
DE2004620A1 (en) | 1971-08-19 |
DE2004620C3 (en) | 1975-07-17 |
FR2078084A5 (en) | 1971-11-05 |
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