Metal complexes for use as gas generants
First Claim
1. A solid gas generating composition formulated for generating gas suitable for use in deploying an air bag or balloon from a supplemental safety restraint system, said gas generating composition comprisingat least one complex ofa transition metal or alkaline earth metal cation,at least one neutral ligand comprising ammonia, andsufficient oxdizing anion to balance the charts of the complex;
- andat least one primary oxidizer which consists essentially of a metal-containing oxidizer.
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Accused Products
Abstract
Complex generating compositions and methods for their use are provided. Metal complexes are used as gas generating compositions. These complexes are comprised of a cationic metal template, sufficient oxidizing anion to balance the charge of the complex, and a neutral ligand containing hydrogen and nitrogen. Hyradzine complexes are formulated such that when the complex combusts nitrogen gas and water vapor is produced. Specific examples of such complexes include metal nitrite ammine, metal nitrate ammine, and metal perchlorate ammine complexes, as well as hydrazine complexes. Such complexes are adaptable for use in gas generating devices such as automobile air bags.
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Citations
42 Claims
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1. A solid gas generating composition formulated for generating gas suitable for use in deploying an air bag or balloon from a supplemental safety restraint system, said gas generating composition comprising
at least one complex of a transition metal or alkaline earth metal cation, at least one neutral ligand comprising ammonia, and sufficient oxdizing anion to balance the charts of the complex; - and
at least one primary oxidizer which consists essentially of a metal-containing oxidizer. - View Dependent Claims (3, 4, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 31)
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2. A solid gas generating composition consisting essentially of
a complex of a transition metal cation or alkaline earth metal cation, at lease one neutral ligand comprising ammonia, and sufficient oxidizing anion to balance the charge of the metal complex; - and
at least one primary oxidizer consisting essentially of a metal-containing oxidizer. - View Dependent Claims (5, 30)
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32. A pellet formulated for use in a gas generator, said pellet being obtained by pelleting a gas generating composition which comprises (a) a complex of a transition metal cation or alkaline earth metal cation and at least one neutral ligand comprising ammonia, and sufficient oxidizing anion to balance the charge of the metal complex;
- and (b) at least one primary oxidizer which consists essentially of at least one metal-containing oxidizer.
- View Dependent Claims (33, 34, 35, 36)
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37. A gas generating device containing a solid gas generating composition formulated for generating gas capable of being used to deploy an air bag or balloon from a supplemental safety restraint system, said gas generating composition comprising (a) at least one complex of a transition metal or alkaline earth metal cation, at least one neutral ligand comprising ammonia, and sufficient oxidizing anion to balance the charge of the complex;
- and (b) at least one primary oxidizer which consists essentially of a metal-containing oxidizer.
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38. An air bag system comprising:
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a collapsed, inflatable air bag; a gas generating device connected to said air bag, said gas-generating device containing a gas-generating composition adapted for use in said gas-generating device, said gas generating composition comprising (a) at least one complex of a transition metal or alkaline earth metal cation, at least one neutral ligand comprising ammonia and sufficient oxidizing anion to balance the charge of the complex; and
(b) at least one primary oxidizer which consists essentially of a metal-containing oxidizer, and means for igniting said gas-generating composition. - View Dependent Claims (39, 40, 41, 42)
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Specification