Gas generant body having pressed-on burn inhibitor layer

Abstract

Abstract A pyrotechnic grain or body (1) of a gas generant (2) having a consolidated or pressed-on, particulate inert burn inhibitor layer (3) thereon. The inhibitor may be a metal oxide such as iron oxide, metal sulfide, such as molybdenum disulfide, silica, silicate compound or mixtures thereof. The preferred inhibitor is a silicate compound, most preferably bentonite. The inhibitor layer (3) most preferably covers only one face or side of the generant body, though it may cover both faces or less than the entire area of one or both faces. The generant may be any conventional formulation which generates nitrogen-containing gas, preferably an azide, and most preferably sodium azide. The generant body may be any shape, preferably a washer-shaped disc. An automotive gas bag inflator may contain a plurality of the composite, inhibited generant bodies, preferably a stack or side by side assembly of such composite, inhibited wafers.

Inventors

• 👤 Bradley W. Smith
• 👤 Scott C. Mitson

Bibliographic Details