Patent ID: 7811397

Claim:
A gas generating agent, for a gas generator for an airbag system that is installed at least outside a vehicle cabin and that protects an individual subjected to impact by the vehicle, the gas generating agent having a mass loss rate of not more than 1% after holding for 400 hours at 130° C. in a sealed system, said gas generating agent comprising: at least one fuel having a melting point or decomposition point of at least 250° C., said fuel is 2-amino-2-methylbutyric acid, a phenol-formaldehyde resin or natural rubber; basic copper nitrate as an oxidizing agent; and at least one binder selected from the group consisting of carboxymethyl cellulose (CMC), sodium carboxymethyl cellulose (CMCNa), potassium carboxymethyl cellulose, ammonium carboxymethyl cellulose, cellulose acetate, cellulose acetate butyrate, methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, ethyl hydroxyethyl cellulose, hydroxypropyl cellulose, carboxymethyl ethyl cellulose, microcrystalline cellulose, polyacrylamide, aminated polyacrylamide, polyacrylhydrazide, acrylamide-metal acrylate copolymer, polyacrylamide-polyacrylic ester copolymer, polyvinyl alcohol, acrylic rubber, guar gum, starch and silicone.