초록 ▼

Preferred gas generant compositions incorporate a combination of 5-aminotetrazole nitrate and an oxidizer. The oxidizer may be selected from a group including nonmetal and metal nitrates, nitrites, chlorates, chlorites, perchlorates, and oxides. 5-aminotetrazole nitrate is characterized as an oxygen

Preferred gas generant compositions incorporate a combination of 5-aminotetrazole nitrate and an oxidizer. The oxidizer may be selected from a group including nonmetal and metal nitrates, nitrites, chlorates, chlorites, perchlorates, and oxides. 5-aminotetrazole nitrate is characterized as an oxygen-rich fuel and is therefore considered to be a self-deflagrating fuel. To tailor the oxygen balance in certain applications, however, the use of an oxidizer is preferred. Methods of formulating the compositions are also described. These compositions are especially suitable for inflating air bags and actuating seatbelt pretensioners in passenger-restraint devices.

대표청구항 ▼

1. A method of formulating a gas generant composition comprising the steps of:chilling a predetermined amount of nitric acid to 0-20 degrees Celsius; adding a fuel selected from the group consisting of 5-aminotetrazole, diaminotriazole, azodicarbonamide, hydrazodicarbonamide, semicarbazide, carbohyd

1. A method of formulating a gas generant composition comprising the steps of:chilling a predetermined amount of nitric acid to 0-20 degrees Celsius; adding a fuel selected from the group consisting of 5-aminotetrazole, diaminotriazole, azodicarbonamide, hydrazodicarbonamide, semicarbazide, carbohydrazide, biuret, 3,5-diamino-1,2,4-triazole, dicyandiamide, and 3-amino-1,2,4-triazole to the chilled nitric acid thereby forming a mixture wherein the nitric acid is diluted with water and is provided in a molarity and quantity at least sufficient to form a mononitrate of the fuel; adding at least one oxidizer selected from the group consisting of nonmetal, alkali metal, and alkaline earth metal nitrates to the mixture; stirring the mixture to form a wet paste wetted by nitric acid and/or water thereby precipitating a solid solution of the mononitrate of the fuel and the oxidizer; forming the paste into a desired shape; and drying the wet formed paste to remove any residual nitric acid and/or water.