Hydroxylammonium nitrate/water/self-deflagrating fuels as gas generating pyrotechnics for use in automotive passive restraint systems
First Claim
Patent Images
1. A liquid gas generant composition for inflating automotive airbags comprising A) between about 50 and about 80 wt. % of a fuel, and between about 20 and B) about 50 wt % of hydroxylammonium nitrate as oxidizer based on total weight of A) plus B);
- plus C) sufficient water to dissolve or slurry A) and B) therein,said fuel A) being a nitrate salt of an amine selected from the group consisting of;
A1) an amino tetrazole or amino triazole,A2) a compound of the formulae (I) (NHZ)2 --C═
O, (II) (NHZ)2 --C═
NZ, (III) HN--(CO--NHZ)2, where the Zs are the same or different and are selected from H and NH2,A3) C2 -C3 -alkyldiamine, andmixtures of the nitrate salts of amines of the above formulae.
2 Assignments
0 Petitions
Accused Products
Abstract
Liquid gas generant compositions are aqueous solutions of hydroxylammonium nitrate as the oxidizer and a fuel selected from the group consisting of nitrate salts of amines of the formulae:
A1) an amino tetrazole or amino triazole,
A2) an amine of the formulae (I) (NHZ)2 --C═O, (II) (NHZ)2 --C═NZ, (III) HN--(CO--NHZ)2, where the Zs are the same or different and are selected from H and NH2,
A3) C2 -C3 -alkyldiamine, and
mixtures of the nitrate salts of amines of the above formulae.
-
Citations
6 Claims
-
1. A liquid gas generant composition for inflating automotive airbags comprising A) between about 50 and about 80 wt. % of a fuel, and between about 20 and B) about 50 wt % of hydroxylammonium nitrate as oxidizer based on total weight of A) plus B);
- plus C) sufficient water to dissolve or slurry A) and B) therein,
said fuel A) being a nitrate salt of an amine selected from the group consisting of; A1) an amino tetrazole or amino triazole, A2) a compound of the formulae (I) (NHZ)2 --C═
O, (II) (NHZ)2 --C═
NZ, (III) HN--(CO--NHZ)2, where the Zs are the same or different and are selected from H and NH2,A3) C2 -C3 -alkyldiamine, and mixtures of the nitrate salts of amines of the above formulae. - View Dependent Claims (2, 3)
- plus C) sufficient water to dissolve or slurry A) and B) therein,
-
4. A liquid gas generant composition for inflating automotive airbags comprising A) between about 50 and about 80 wt. % of a fuel, and B) between about 20 and about 50 wt % of hydroxylammonium nitrate as oxidizer based on total weight of A) plus B) plus C) sufficient water to dissolve or slurry A) and B) therein,
said fuel A) being a nitrate salt of an amine selected from the group consisting of: -
A1) an amino tetrazole or amino triazole, A2) a compound of the formulae (I) (NHZ)2 --C═
O, (II) (NHZ)2 --C═
NZ, (III) HN--(CO--NRZ)2, where the Zs are the same or different and are selected from H and NH2,A3) C2 -C3 -alkyldiamine, and mixtures of the nitrate salts of amines of the above formulae, said fuel and said hydroxylammonium nitrate being used at a stoichiometric ratio of between about 0.9 and about 1.1. - View Dependent Claims (5, 6)
-
Specification
-
- Resources
Litigation Campaign Assessment
Thank you for your request. You will receive a custom alert email when the Litigation Campaign Assessment is available.
×
-
Current AssigneeAutoliv ASP Incorporated (Autoliv Incorporated)
-
Original AssigneeMorton International Incorporated (Autoliv Incorporated)
-
InventorsJohnson, Darrin L., Barnes, Michael W., Harris, Bradley D.
-
Primary Examiner(s)Nelson, Peter A.
-
Application NumberUS08/616,543Time in Patent Office599 DaysField of Search149/45, 149/46, 149/92US Class Current149/45CPC Class CodesC06B 31/00 Compositions containing an ...C06B 47/00 Compositions in which the c...C06D 5/00 Generation of pressure gas,...
