Gas generating composition
AssigneeDaicel Chemical Industries, Ltd.
InventorsJianzhou Wu, Shogo Tomiyama, Yoji Fujisaki
Life of this patent
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Abstract
A gas generating composition exhibiting good slag forming ability is provided. The gas generating composition includes a fuel ranging from 10 to 60% by mass, an oxidizing agent ranging from 10 to 70% by mass, and a cooling agent (other than iron oxide) ranging from 1 to 20% by mass. The cooling agent has a volume mean diameter (D50) of 10 to 70 μm and a volume mean diameter at cumulative of 10% (D10) of equal to or greater than 5 μm. The cooling agent acts to decrease the combustion temperature and improve slag forming ability.
Claims5
A gas generating composition, comprising 10 to 60% by mass of a guanidine nitrate fuel, 20 to 70% by mass of a basic copper nitrate oxidizing agent having an average particle diameter of 10 μm or less, and 1 to 20% by mass of a cooling agent which is not an iron oxide, said cooling agent being at least one member selected from the group consisting of metal hydroxide and complex salts thereof,
- wherein the cooling agent has a volume mean diameter at cumulative of 50% (D50) which has a particle size distribution defined with a particle size at the 50% accumulated value of 20 to 70 μm in an accumulated curve determined when the total volume of all the particles is taken as 100% and
- the cooling agent also has a volume mean diameter at cumulative of 10% (D10) which has a particle size distribution defined with a particle size at the 10% accumulated value of 5 to 40 μm in an accumulated curve determined when the total volume of all the particles is taken as 100%.
A gas generating composition, comprising
- 10 to 60% by mass of a guanidine nitrate fuel,
- 20 to 70% by mass of a basic copper nitrate oxidizing agent having an average particle diameter of 10 μm or less, and
- 1 to 20% by mass of a cooling agent which is not an iron oxide, said cooling agent being at least one member selected from the group consisting of metal hydroxide and complex salts thereof, wherein the cooling agent has a volume mean diameter particle size profile wherein
- the volume mean diameter at cumulative of (D50), defined as the particle size at the 50% accumulated value in an accumulation curve when the total volume of all the particles is taken as 100%, is selected to be 20 to 70 μm and
- the volume mean diameter at cumulative of 10% (D10), defined as the particle size at the 10% accumulated value in an accumulation curve when the total volume of all the particles is taken as 100%, is selected to be 5 to 40 μm.
Dependencies are inferred from the claim text.