Pyrotechnic mixture and gas generator for an airbag
First Claim
1. Pyrotechnic mixture in the form of granulates, comprising a nitrogen-generating substance, particularly an alkaline metal, alkaline earth metal, or ammonium azide, an inorganic oxidizing agent and as a binder silicone rubber, characterized in that the granulates each comprise a plurality of particles of the nitrogen-generating substance and the inorganic oxidizing agent having a size of from 1 μ
- m to 200 μ
m, which are bonded together by the silicone rubber, which is present in an amount of 13 to 28% based on the weight of the total mixture.
2 Assignments
0 Petitions
Accused Products
Abstract
A pyrotechnic mixture in the form of granulates, encompassing a nitrogen-generating substance, an inorganic oxidizing medium and a binder constituted of silicone rubber. Also disclosed is a process for the production of this pyrotechnic mixture, as well as a gas generator for an airbag which contains the pyrotechnic mixture as a propellent charge. The pyrotechnic mixture is in the form of granulates for a propellent charge which generates a non-toxic gas, encompassing the nitrogen-generating substance, especially an alkali metal azide or earth alkali metal azide, an inorganic oxidizing medium consisting of alkali metal nitrate and/or alkaline earth metal nitrate and silicone rubber.
-
Citations
25 Claims
-
1. Pyrotechnic mixture in the form of granulates, comprising a nitrogen-generating substance, particularly an alkaline metal, alkaline earth metal, or ammonium azide, an inorganic oxidizing agent and as a binder silicone rubber, characterized in that the granulates each comprise a plurality of particles of the nitrogen-generating substance and the inorganic oxidizing agent having a size of from 1 μ
- m to 200 μ
m, which are bonded together by the silicone rubber, which is present in an amount of 13 to 28% based on the weight of the total mixture. - View Dependent Claims (2, 20, 21, 22, 23)
- m to 200 μ
-
3. Pyrotechnic mixture in the form of granulates for a propellant charge producing a non-poisonous gas, comprising a nitrogen-generating substance, particularly an alkaline metal azide or an alkaline earth metal azide, an inorganic oxidizing agent consisting of an alkaline metal nitrate and/or an alkaline earth metal nitrate and silicone rubber, characterized in that the azide portion amounts to 35 to 60 percent by weight, the nitrate portion to 20 to 45 percent by weight and the silicone rubber portion amounts to 13 to 28 percent by weight, the azide and the nitrate in the granule exhibiting a grain size of 1 to 200 μ
- m and the granule having a bulk density of 0.35 to 1.2 g/cm3.
- View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18, 19, 24, 25)
-
12. Mixture according to claim, wherein the inorganic oxidizing agent is selected from the group consisting of potassium nitrate, sodium nitrate and mixtures thereof.
Specification