Gas generant compositions comprising melamine oxalate for use in automotive restraint devices

A cool burning gas generant composition for an automotive inflatable restraint system comprising:

• a melamine oxalate compound;
• a co-fuel;
• and
• an oxidizer, wherein the gas generant composition has a maximum flame temperature at combustion (Tc) of less than or equal to about 1700 K (1,427° C.), a linear burn rate of greater than or equal to about 18 mm per second at a pressure of about 10 megapascals (MPa), a gas yield of the gas generant composition of greater than or equal to about 5.7 moles/100 cm3, and a linear burn rate pressure exponent of less than or equal to about 0.35.

A cool burning gas generant composition for an automotive inflatable restraint system comprising:

• a melamine oxalate compound;
• guanidine nitrate;
• and
• basic copper nitrate, wherein the gas generant composition has a maximum flame temperature at combustion (Tc) of less than or equal to about 1700 K (1,427° C.), a linear burn rate of greater than or equal to about 18 mm per second at a pressure of about 10 megapascals (MPa), a gas yield of the gas generant of greater than or equal to about 5.7 moles/100 cm3, and a linear burn rate pressure exponent of less than or equal to about 0.35.