Patent · US Expired

Gas generating material

US4696705A · kind A · utility

59Cited by
11References
7Claims
0Family size

Assignee

Inventor

Key dates

Filing dateDec 24, 1986
Grant dateSep 29, 1987
Priority date
Expiry dateDec 24, 2006

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S149/114
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

Structure for generating nitrogen gas for inflating an air bag vehicle occupant restraint comprises a grain made of an azide based material which generates gas upon combustion. The grain is made of a gas generating material which includes 61-68% by weight of sodium azide, 0-5% by weight of sodium nitrate, 0-5% by weight of bentonite, 23-28% by weight of iron oxide, 1-2% by weight of fumed silica, and from about 2 to about 6% by weight of graphite fibers having a diameter of 3-15 microns and an average length of 40 to 125 thousandths of an inch.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.