Igniting agent composition, and igniter using the igniting agent composition

Abstract

An igniting agent composition substantially free of a lead compound, characterized in that it comprises a metal power and one or more selected from the group consisting of nitrate salt, basic nitrate salt, a metal oxide and a basic carbonate salt; and an igniter using the igniting agent composition. The igniting agent composition shows no delay in ignition time and no reduction in igniting capability, as compared to conventional lead-containing composition.

1 . An igniting agent composition which contains substantially no lead compound, characterized by containing at least one kind or two or more kinds of materials selected from the group consisting of nitrate, basic nitrate, metal oxide, metal hydroxide and basic carbonate, and metal powder.  
     
     
         2 . An igniting agent composition which contains substantially no lead compound and is used for a fuse head, characterized by containing at least one kind or two or more kinds of materials selected from the group consisting of nitrate, basic nitrate, metal oxide, metal hydroxide, basic carbonate, perchlorate and chlorate, and metal powder.  
     
     
         3 . The igniting agent composition according to  claim 1  or  claim 2 , characterized in that the basic nitrate is basic zinc nitrate, basic cobalt nitrate or basic copper nitrate, the metal oxide is copper oxide, the nitrate is copper nitrate, the metal hydroxide is copper hydroxide and the basic carbonate is basic copper carbonate.  
     
     
         4 . The igniting agent composition according to  claim 1  or  claim 2 , characterized in that the metal powder contains at least one kind or two or more kinds of materials selected from the group consisting of zirconium, aluminum, magnesium, magnalium, titanium, titanium hydride, iron, tungsten and boron.  
     
     
         5 . An igniting agent composition which contains basic copper nitrate, characterized by containing zirconium.  
     
     
         6 . The igniting agent composition according to any one of  claims 1  to  5 , characterized by containing a binder as an additive.  
     
     
         7 . The igniting agent composition according to  claim 1 , characterized in that at least one kind or two or more kinds of materials, selected from the group consisting of nitrate, basic nitrate, metal oxide, metal hydroxide, basic carbonate and basic copper nitrate, form particles having a 50% average particle size of not more than 20 μm.  
     
     
         8 . The igniting agent composition according to  claim 2 , characterized in that at least one kind or two or more kinds of materials, selected from the group consisting of nitrate, basic nitrate, metal oxide, metal hydroxide, basic carbonate, basic copper nitrate, perchlorate and chlorate, form particles having a 50% average particle size of not more than 20 μm.  
     
     
         9 . The igniting agent composition according to  claim 1  or  claim 2 , characterized in that the metal powder has a 50% average particle size of not more than 10 μm.  
     
     
         10 . The igniting agent composition according to  claim 1  or  claim 2 , characterized in that basic copper nitrate has a content of 15 weight % to 70 weight %, zirconium has a content of 20 weight % to 80 weight %, and a binder component has a content of 2 weight % to 15 weight %.  
     
     
         11 . An igniter characterized by using the igniting agent composition according to any one of  claims 1  to  10 .  
     
     
         12 . An igniter characterized by using the igniting agent composition according to any one of  claims 1  to  10  as a fuse head.