IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
|
| 국제특허분류(IPC7판) |
|
| 출원번호 |
US-0339999
(2003-01-10)
|
| 우선권정보 |
DE-0064172 (1999-10-09) |
|
발명자
/ 주소 |
|
| 출원인 / 주소 |
- Diehl Munitionssysteme GmbH & Co. KG
|
| 대리인 / 주소 |
Scully, Scott, Murphy & Presser
|
| 인용정보 |
피인용 횟수 :
11 인용 특허 :
10 |
초록
▼
A pyrotechnic active material for producing IR-radiation is proposed. An active material according to the invention contains fuel (preferably magnesium) which combines with fluorine in a strongly exergonic reaction (for example Li, Be, Mg, Ca, Sr, Ba, Ti, Zr, Hf, B, Al and alloys thereof) and poly-(
A pyrotechnic active material for producing IR-radiation is proposed. An active material according to the invention contains fuel (preferably magnesium) which combines with fluorine in a strongly exergonic reaction (for example Li, Be, Mg, Ca, Sr, Ba, Ti, Zr, Hf, B, Al and alloys thereof) and poly-(carbon monofluoride) ((--CFx--)n) (x=0.6-1.2) as an oxidation agent. Compositions according to the invention further contain VITON.RTM. as a polymeric binding agent and graphite for reduction of the electrostatic sensitivity. A process for producing those compositions is also provided.
대표청구항
▼
1. A pyrotechnic composition for producing IR-radiation comprising, by weight, (a) 10-72.5% of a poly-(carbon monofluoride) material; (b) 15-90% of a halophilic metallic fuel comprising a metal selected from the group consisting of magnesium, aluminum, titanium, zirconium, hafnium, calcium, berylliu
1. A pyrotechnic composition for producing IR-radiation comprising, by weight, (a) 10-72.5% of a poly-(carbon monofluoride) material; (b) 15-90% of a halophilic metallic fuel comprising a metal selected from the group consisting of magnesium, aluminum, titanium, zirconium, hafnium, calcium, beryllium, boron and mixtures or alloys thereof; (c) 2.5-7.5% of an organic fluorine-bearing binding agent; and (d) 0.1-5% of graphite, wherein components (a)-(d) add up to 100%. 2. The pyrotechnic composition of claim 1 wherein said halophilic metallic fuel comprises magnesium. 3. The pyrotechnic composition of claim 1 wherein said poly-(carbon monofluoride) material has repeating units of the formula (--CFx--)nwherein x is between 0.6 to 1.2; and n is the number of repeating CFxmoieties present in the material. 4. The pyrotechnic composition of claim 3 wherein x is between 1 and 1.2. 5. The pyrotechnic composition of claim 3 wherein x is less than 1.1. 6. The pyrotechnic composition of claim 1 wherein from 20-80% of said poly-carbon monofluoride) is present in said composition. 7. The pyrotechnic composition of claim 1 wherein said organic fluorine-bearing binder is a hexafluoropropylene-vinylidene difluoride copolymer. 8. The pyrotechnic composition of claim 1 wherein said organic fluorine-bearing binder is a fluoroelastomer based on the copolymer of vinylidene fluoride and hexafluoropropylene with a repeating structure --CF2--CH2--CF2--CF(CF3)--. 9. The pyrotechnic composition of claim 1 wherein said halophilic metallic fuel is present in an amount of between 40-70%. 10. The pyrotechnic composition of claim 1 wherein said graphite is graphite powder having a specific resistance of less than 7×10-5Ω.m-1. 11. The pyrotechnic composition of claim 1 comprising 55% of said poly-carbon monofluoride), 40% magnesium, and 5% of a fluoroelastomer based on the copolymer of vinylidene fluoride and hexafluoropropylene with a repeating structure --CF2--CH2--CF2--CF(CF3)--.
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