WO1994001382A1 - Gas generating agent and gas generator for automotive airbag - Google Patents
Gas generating agent and gas generator for automotive airbag Download PDFInfo
- Publication number
- WO1994001382A1 WO1994001382A1 PCT/JP1993/000927 JP9300927W WO9401382A1 WO 1994001382 A1 WO1994001382 A1 WO 1994001382A1 JP 9300927 W JP9300927 W JP 9300927W WO 9401382 A1 WO9401382 A1 WO 9401382A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gas generating
- gas
- generating agent
- compound
- agent according
- Prior art date
Links
Classifications
-
- 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
Definitions
- the present invention relates to a gas generating agent that becomes an operating gas in an air bag system provided for protecting a human body of an automobile, an aircraft, or the like, and an automobile air bath.
- gas generators Conventional technology
- gas generating compositions useful for inflation of airbags mainly use azified soda.
- This composition has no particular problem with regard to its combustion characteristics, and is currently widely used for practical use.
- the azide soda is essentially used. It has a variety of undesirable characteristics. For example, the risk of decomposition explosion is very high, and it is classified as Class B explosive in the United States, and the spark sensitivity of azide soda is the same as that of black explosive. Its handling requires the utmost care. At present, accidents are frequently occurring worldwide in the manufacturing process of compositions containing azide soda.
- soda azide reacts with heavy metals to produce impact-sensitive salts. Radiation with extremely high shock sensitivity especially in the reaction with copper Produces copper. Copper metal or its alloys are frequently used as materials for automobile parts in general, so the problem of air bag disposal at the time of scrapping vehicles is also involved. As the number of discarded vehicles equipped with an arbor increases, it is likely to become a social problem.
- azide soda is also problematic in its biotoxicity, and severe chest pain resembling angina, which is radiated to both arms by people who drank 0.4 gr. He complained of numbness in his feet and fell to the floor, or as an azide soda, 0.05-0.6 gr grined a 39-year-old man suddenly fell faint after 5 minutes. There have been reports of patients who incontinent urine and complained of nausea and severe headache 10 minutes later.
- sodium azide which reacts with acids to generate hydrogen azide, has a similar feature to cyanide and hydrogen sulfide, and inhibits cytochrome oxidase. You In addition, there are many problems, such as significant hypoxia, severe blood pressure decrease, kylen, tachycardia, bradycardia, and ventricular fibrillation. are doing .
- the present invention is intended for a bag that does not include azide soda, is easy to manufacture and handle, can easily control the combustion rate, and can maintain its combustion stability. It is intended to provide a gas generating agent which can be used by a vehicle and a gas generating device containing the gas generating agent for an automobile airbag. Means to solve the problem
- the present inventors have conducted intensive studies to solve the above-mentioned problems, and as a result, have arrived at the present invention. That is, the present invention
- a gas generator comprising at least one compound (A) selected from the group consisting of:
- a gas generator comprising at least one compound (A) selected from the group consisting of: an oxidizing agent and, if necessary, a binder;
- oxyacid salt is an oxyacid salt selected from the group consisting of nitrate, nitrite, chlorate and perchlorate.
- the content of the compound (A) is 10% by weight or more, the content of the oxidizing agent is 90% by weight or less, and the content of the binder is 0 to 5% by weight. 2), (3) or (4)
- Vehicle air-gas generator described in (8) above (10) Vehicle air-bag gas generator described in (9) above (15) (1) ), (2), (3), (4) or (5), a gas generator for an automobile air bag, which contains the gas generating agent described in (5).
- the content of the compound (A) in the gas generating agent may be 100% by weight, and when used in combination with other components such as an oxidizing agent, the content of the compound (A) may be 10% by weight. %, More preferably from 15 to 90% by weight, particularly preferably from 20 to 85% by weight.
- Alkali metal salts or alkaline earth metal salts of nitrous acid such as sodium nitrite, potassium nitrite, sodium chlorate, sodium chlorate, lithium chlorate, lithium chlorate , Barium chlorate, magnesium chlorate, ⁇ O ⁇ Al-metal salts of chloric acid such as calcium chlorate or alkaline earth metal salts, sodium perchlorate, potassium perchlorate, excess Metal salts or metal salts of perchloric acid such as lithium chlorate, barium perchlorate, magnesium perchlorate, calcium perchlorate, etc. Earth metal salts.
- the content of the oxidizing agent in the gas generating agent is preferably 90% by weight or less, more preferably 10 to 85% by weight. It is particularly preferably 15 to 80% by weight.
- the gas generating agent may contain a binder, and various types of binders such as disulfurized molybdenum may be used as the binder, and the binder in the gas generating agent may be used.
- the amount is preferably between 0 and 5% by weight.
- the content of the binder in the gas generating agent is preferably from 0.1 to 5% by weight.
- the gas generating agent of the present invention can be obtained by mixing the respective components, preferably in a powder form, and the mixing can be performed in the presence of water or the like as necessary.
- the gas generant consists solely of compound (A)
- the compound itself is used as the gas generant, in which case it is preferably powdery.
- the gas generating agent can be used in the form of granules or pellets, if necessary. At this time, by changing the load of the press to be molded, the fuel can be easily removed. The burning rate can be changed and the burning rate is stable
- the gas generating agent of the present invention expands an air bag (gas bag) of a human body or the like at the time of a collision arranged in a high-speed moving body such as an automobile or an aircraft.
- the gas of the present invention which is particularly useful as a gas generant for inflating the air bag, in a stabilizing device for protecting by this.
- the generator is used, for example, by filling a gas generator (infrared) equipped with an ignition mechanism.
- the gas generator any of those conventionally known can be used.
- a device made of iron aluminum, copper, or various alloys or a device made of plastic can be used, and a device having various shapes such as a cylinder, a hemisphere, and a sphere can be used.
- a device provided with a hole or baffle plate of appropriate diameter can also be used.
- the ignition of the gas generating agent filled in the gas generating device can be performed by a known method, for example, by applying current or applying mechanical shock.
- the gas generator is burned by the ignition, and the generated gas is discharged into the air bag and expands the air bag.
- the compound (A) contained in the gas generating agent of the present invention is extremely excellent in its combustion characteristics as the combustion characteristics required for airbags. .
- the control of the burning speed as a gas generating agent for air bagging is performed. It is easy, its burning rate is stable, and it has excellent long-term stability over time. Furthermore, the amount of gas generated per unit weight is much higher than that of azide soda.
- Compound (A) is very easy to handle.
- complete measures against moisture absorption are indispensable in view of its hygroscopicity and toxicity of hydrogen azide, whereas the compound (A) of the present invention is used as the main agent.
- Sulfur gas generating agents have extremely low hygroscopicity, and measures in this regard are almost unnecessary.
- maleic acid hydrazide (CAS No. 123-33-1) was found to have an LD5 () power of 800 mg Z kg per oral dose.
- Carbohydrazide (CAS No. 497-8-7) was compared to a single intravenous injection of LD5 () with a dose of 120 mg / kg.
- Digested soda (CAS No. 2 6 6 2 8 — 2 2 — 8)
- Oral — LD 5 () in mouse is 27 mg Z kg, compound (A) is more preferred And high safety.
- 3-methyl-5-pyrazolones (CAS No. 108-26-9) have a LDL 0 of e OO mg Z kg, whereas A Jihide (CAS number
- the LDL 0 of the mouth-mouse is AS mg Z kg
- compound (A) is extremely safe o
- the compound (A) or a mixture of the compound (A) and other components is an agglomerated pellet having sufficient strength as a gas generating agent for airbags even in the absence of a binder. Can be pressed. However, it is also possible to add a small proportion of binder to the gas generator. Mollipden disulfide is a particularly preferred binder in the presence of potassium salts in the gas generant.
- the burning speed of the gas generating agent can be easily changed, and the burning speed can be stabilized.
- the gas generating agent of the present invention has excellent heat stability over time and its reliability is high, so that it can be used for inflation overnight. Examples that are well adapted to the characteristics required for
- the maleic hydrazide (MH) and the oxidizing agent were uniformly mixed in a powder form using a V-type mixer at the ratio shown in Table 1A, and the mixture was 1 Omm in diameter. or put into a die of 6 mm, 6 0 0 kg / cm 2 or flop Les scan molded into Bae Les Tsu preparative shape Placing the 3 0 0 load of k g / cm 2 Was. The weight of each pellet obtained is shown in Table 1A. Table 1 A
- Example 7A in which the gas of 0,20 mole was generated in each of the examples 5A to 6A, in which case the gas of 0,35 mole was generated.
- Example 1A The same operation as in Example 1A was carried out after keeping 7.5 gr of the pellet of Example 6A at 120 ° C for 240 hours from the viewpoint of function assurance after storage in a high temperature environment. As a result of the combustion at 29, 28, 29
- carbohydrazide (CH) and the oxidizing agent are uniformly mixed in powdered form using a V-type mixer, and the mixture is mixed. also diameter 1 0 mm is input to the die of 6 mm, and up Les scan molded 6 0 0 kg / cm 2 or 3 0 0 kg / cm 2 of a load or only with Bae les Tsu preparative form. The weight of each pellet obtained is shown in Table 1B.
- Example 7B 7.5 kg of the pellet of Example 6B was retained at 120 ° C for 240 hours in order to guarantee the function after storage in a high-temperature environment. As a result of burning by the same operation, the burning time was 78, 82, and 810 ms, and a very stable burning time was obtained as in Example 6B.
- Examples 1C to 6C In the ratio shown in Table 1C, thiocanole hydrazide (TCH) and an oxidizing agent were uniformly mixed in powder form using a V-type mixer, and the mixture was mixed.
- Example 6C The same operation as in Example 1C was carried out after keeping 7.5 gr of the pellet of Example 6C at 120 ° C for 240 hours in order to guarantee the function after storage in a high-temperature environment. As a result, the combustion time was 88, 92, 91 and 90 ms, and very stable combustion time was obtained as in Example 6C.
- 3-methylone 5-pyrazolone (MP) and oxidizing agent are mixed in powder form using a V-type mixer, and the mixture is mixed to a diameter of 1. 0 mm or placed in a die of 6 mm, and up Les scan molded 6 0 0 kg / cm 2 or 3 0 0 kg / cm 2 of a load or only with Bae les Tsu preparative form.
- the weight of each pellet obtained is shown in Table 1D. 7-
- Example 1D The same operation as in Example 1D was performed after keeping 7.5 gr of the pellet of Example 6D at 120 ° C for 240 hours from the viewpoint of functional assurance after storage in a high temperature environment.
- the burning time is 31, 31, 32, 30
- the pellets were applied to an automobile.
- a well-known cylindrical gas generator equipped with an ignition mechanism for airbags was filled and a pellet (gas generating agent) combustion test was performed.
- suitable combustion rate and gas generation rate for automotive airbags were obtained.
- the gas generating agent of the present invention is a compound which has extremely low toxicity and is easy to handle without using azide soda which is dangerous and physiologically harmful.
- A) is a gas generator that can maintain the combustion stability required for inflation overnight
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Organic Chemistry (AREA)
- Air Bags (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/199,327 US5460667A (en) | 1992-07-10 | 1993-07-06 | Gas generating agent and gas generator for automobile air bags |
EP93914960A EP0607450A4 (en) | 1992-07-10 | 1993-07-06 | GAS GENERATING AGENT AND GAS GENERATOR FOR AN AIRBAG IN VEHICLES. |
Applications Claiming Priority (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20627892 | 1992-07-10 | ||
JP20627792 | 1992-07-10 | ||
JP4/206278 | 1992-07-10 | ||
JP4/206275 | 1992-07-10 | ||
JP20627492 | 1992-07-10 | ||
JP4/206277 | 1992-07-10 | ||
JP20627592 | 1992-07-10 | ||
JP4/206274 | 1992-07-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1994001382A1 true WO1994001382A1 (en) | 1994-01-20 |
Family
ID=27476302
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1993/000927 WO1994001382A1 (en) | 1992-07-10 | 1993-07-06 | Gas generating agent and gas generator for automotive airbag |
Country Status (4)
Country | Link |
---|---|
US (1) | US5460667A (ja) |
EP (1) | EP0607450A4 (ja) |
CA (1) | CA2118698A1 (ja) |
WO (1) | WO1994001382A1 (ja) |
Families Citing this family (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5898126A (en) * | 1992-07-13 | 1999-04-27 | Daicel Chemical Industries, Ltd. | Air bag gas generating composition |
WO1994001381A1 (en) * | 1992-07-13 | 1994-01-20 | Nippon Koki Co., Ltd. | Gas generating agent for air bags |
FR2719578B1 (fr) * | 1994-05-09 | 1996-12-20 | Nof Corp | Compositions de générateur de gaz comprenant un agent désoxydé et un agent oxydant. |
US5656793A (en) * | 1994-05-09 | 1997-08-12 | Eiwa Chemical Ind. Co., Ltd. | Gas generator compositions |
DE19581542T1 (de) | 1994-12-21 | 1999-04-01 | Daicel Chem | Gaserzeugende Zusammensetzung |
WO1996020147A1 (fr) * | 1994-12-28 | 1996-07-04 | Daicel Chemical Industries, Ltd. | Agent generateur de gaz |
DE19617538C1 (de) * | 1996-05-02 | 1997-10-30 | Temic Bayern Chem Airbag Gmbh | Gaserzeugendes, azidfreies Stoffgemisch |
DE19805976C1 (de) * | 1998-02-13 | 1999-04-29 | Nigu Chemie Gmbh | Frühzündpulver für thermische Sicherungen für Airbag-Gasgeneratoren |
US8097712B2 (en) | 2007-11-07 | 2012-01-17 | Beelogics Inc. | Compositions for conferring tolerance to viral disease in social insects, and the use thereof |
US8962584B2 (en) | 2009-10-14 | 2015-02-24 | Yissum Research Development Company Of The Hebrew University Of Jerusalem, Ltd. | Compositions for controlling Varroa mites in bees |
MX2012010479A (es) | 2010-03-08 | 2012-10-09 | Monsanto Technology Llc | Moleculas polinucleotidicas para regulacion genetica en plantas. |
DE102010049765A1 (de) * | 2010-10-29 | 2012-05-03 | Trw Airbag Systems Gmbh | Verfahren zur Herstellung von Festtreibstofftabletten, Gasgenerator und Modul mit Gasgenerator |
UA116090C2 (uk) | 2011-09-13 | 2018-02-12 | Монсанто Текнолоджи Ллс | Спосіб та композиція для боротьби з бур'янами (варіанти) |
CN110066794A (zh) | 2011-09-13 | 2019-07-30 | 孟山都技术公司 | 用于杂草控制的方法和组合物 |
US10806146B2 (en) | 2011-09-13 | 2020-10-20 | Monsanto Technology Llc | Methods and compositions for weed control |
US10760086B2 (en) | 2011-09-13 | 2020-09-01 | Monsanto Technology Llc | Methods and compositions for weed control |
US10829828B2 (en) | 2011-09-13 | 2020-11-10 | Monsanto Technology Llc | Methods and compositions for weed control |
CN107739737A (zh) | 2011-09-13 | 2018-02-27 | 孟山都技术公司 | 用于杂草控制的方法和组合物 |
UA116093C2 (uk) | 2011-09-13 | 2018-02-12 | Монсанто Текнолоджи Ллс | Спосіб та композиція для боротьби з бур'янами (варіанти) |
MX360866B (es) | 2012-05-24 | 2018-11-09 | A B Seeds Ltd | Composiciones y métodos para silenciar la expresión genética. |
US10683505B2 (en) | 2013-01-01 | 2020-06-16 | Monsanto Technology Llc | Methods of introducing dsRNA to plant seeds for modulating gene expression |
UY35252A (es) | 2013-01-01 | 2014-07-31 | Seeds Ltd Ab | MÉTODOS PARA INTRODUCIR dsRNA EN SEMILLAS DE PLANTAS PARA MODULAR LA EXPRESIÓN GENÉTICA |
BR112015023051A2 (pt) | 2013-03-13 | 2017-11-14 | Monsanto Technology Llc | método para controle de ervas daninhas, composição herbicida, cassete de expressão microbiano e método de produção de polinucleotídeo |
BR112015022797A2 (pt) | 2013-03-13 | 2017-11-07 | Monsanto Technology Llc | método para controle de ervas daninhas, composição herbicida, cassete de expressão microbiano e método de produção de polinucleotídeo |
US10568328B2 (en) | 2013-03-15 | 2020-02-25 | Monsanto Technology Llc | Methods and compositions for weed control |
CN105980567B (zh) | 2013-07-19 | 2021-04-16 | 孟山都技术有限公司 | 用于控制叶甲属的组合物和方法 |
US9850496B2 (en) | 2013-07-19 | 2017-12-26 | Monsanto Technology Llc | Compositions and methods for controlling Leptinotarsa |
CA2929533C (en) | 2013-11-04 | 2023-06-06 | Monsanto Technology Llc | Compositions and methods for controlling arthropod parasite and pest infestations |
UA119253C2 (uk) | 2013-12-10 | 2019-05-27 | Біолоджикс, Інк. | Спосіб боротьби із вірусом у кліща varroa та у бджіл |
UA121462C2 (uk) | 2014-01-15 | 2020-06-10 | Монсанто Текнолоджі Елелсі | Спосіб та композиція для боротьби із бур'янами з використанням полінуклеотидів epsps |
CN106413390B (zh) | 2014-04-01 | 2019-09-27 | 孟山都技术公司 | 用于控制虫害的组合物和方法 |
WO2015200223A1 (en) | 2014-06-23 | 2015-12-30 | Monsanto Technology Llc | Compositions and methods for regulating gene expression via rna interference |
EP3161138A4 (en) | 2014-06-25 | 2017-12-06 | Monsanto Technology LLC | Methods and compositions for delivering nucleic acids to plant cells and regulating gene expression |
CA2955842A1 (en) | 2014-07-29 | 2016-02-04 | Monsanto Technology Llc | Compositions and methods for controlling insect pests |
EP3256589B1 (en) | 2015-01-22 | 2021-12-22 | Monsanto Technology LLC | Compositions and methods for controlling leptinotarsa |
CN107750125A (zh) | 2015-06-02 | 2018-03-02 | 孟山都技术有限公司 | 用于将多核苷酸递送至植物中的组合物和方法 |
EP3302030A4 (en) | 2015-06-03 | 2019-04-24 | Monsanto Technology LLC | METHODS AND COMPOSITIONS FOR THE INTRODUCTION OF NUCLEIC ACIDS IN PLANTS |
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US3929530A (en) * | 1966-11-21 | 1975-12-30 | Dow Chemical Co | Pyrotechnic disseminating formulation |
US4692269A (en) * | 1985-09-25 | 1987-09-08 | Pennwalt Corporation | Gas-releasing composition for tailoring gas evolution of system |
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US2970899A (en) * | 1955-09-28 | 1961-02-07 | Olin Mathieson | Ammunition propellant |
US4190471A (en) * | 1969-08-21 | 1980-02-26 | The Dow Chemical Company | Pyrotechnic disseminating formulations |
US4369079A (en) * | 1980-12-31 | 1983-01-18 | Thiokol Corporation | Solid non-azide nitrogen gas generant compositions |
JPS5829330B2 (ja) * | 1981-01-19 | 1983-06-22 | 永和化成工業株式会社 | 不飽和ポリエステル樹脂発泡体の製造方法 |
US5197758A (en) * | 1991-10-09 | 1993-03-30 | Morton International, Inc. | Non-azide gas generant formulation, method, and apparatus |
-
1993
- 1993-07-06 US US08/199,327 patent/US5460667A/en not_active Expired - Fee Related
- 1993-07-06 CA CA002118698A patent/CA2118698A1/en not_active Abandoned
- 1993-07-06 EP EP93914960A patent/EP0607450A4/en not_active Ceased
- 1993-07-06 WO PCT/JP1993/000927 patent/WO1994001382A1/ja not_active Application Discontinuation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3929530A (en) * | 1966-11-21 | 1975-12-30 | Dow Chemical Co | Pyrotechnic disseminating formulation |
US4692269A (en) * | 1985-09-25 | 1987-09-08 | Pennwalt Corporation | Gas-releasing composition for tailoring gas evolution of system |
Non-Patent Citations (1)
Title |
---|
See also references of EP0607450A4 * |
Also Published As
Publication number | Publication date |
---|---|
CA2118698A1 (en) | 1994-01-20 |
EP0607450A1 (en) | 1994-07-27 |
US5460667A (en) | 1995-10-24 |
EP0607450A4 (en) | 1995-04-05 |
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