Water-resistant fuse-cord
AssigneeImperial Chemical Industries PLC
InventorsAndrew Gibson, Trevor John Turner
Life of this patent
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Abstract
A water-resistant explosive fuse-cord having water-soluble or water-swellable macromolecular material adjacent to textile material surrounding the explosive core.
Claims27
A dry-spun detonating fuse-cord comprising a core of dry particulate explosive material, supporting materials comprising at least one layer of textile material surrounding said core, and at least one water-gellable macromolecular material disposed around said core in contact with said textile material whereby, when the end of said fuse-cord is immersed in water, an aqueous gel of macromolecular material is formed which slows water migration through the textile layer.
An explosive fuse-cord comprising a core of explosive material, supporting materials comprising at least one layer of textile material surrounding said core, and at least one water-gellable macromolecular material in close proximity to said textile material, said macromolecular material being carried by a substrate wrapped around the explosive core adjacent the textile layer, whereby, when the end of said fusecord is immersed in water, an aqueous gel of macromolecular material is formed which slows water migration through the textile layer.
In the dry spinning process for the manufacture of detonating fuse-cord wherein an explosive core is continuously formed from dry particulate explosive material and surrounded by supporting material comprising at least one layer of textile material, the improvement comprising the step of disposing around said explosive core in contact with said textile material at least one water-gellable macromolecular material whereby, when the end of said fuse-cord is immersed in water, an aqueous gel of macromolecular material is formed which slows water migration through the textile layer.
Dependencies are inferred from the claim text.