초록 ▼

A solid rocket propellant composition having a relatively high low pressure deflagration limit (Pdl) and thereby capable of being extinguished with only a relatively small drop in combustion chamber pressure. The composition comprises a major amount of finely divided ammonium perchlorate and a minor

A solid rocket propellant composition having a relatively high low pressure deflagration limit (Pdl) and thereby capable of being extinguished with only a relatively small drop in combustion chamber pressure. The composition comprises a major amount of finely divided ammonium perchlorate and a minor amount of fluoroalkyl acrylate or methacrylate polymer as a binder, the weight ratio being from about 4.5:1 to about 6:1.The fluidity of the composition prior to curing can be improved by incorporating a small amount of an acrylate or methacrylate having an oxygen-containing functional group, e.g., hydroxyalkyl, epoxyalkyl and glycerol acrylates and methacrylates.

대표청구항 ▼

A self-extinguishing propellant composition having a low pressure deflagration limit of 30 to 200 p.s.i.a. and comprising particulate ammonium perchlorate and a binder in a weight ratio of about 4.5:1 to about 6:1, said binder being a polymer consisting essentially of fluoroalkyl acrylate or methacr

A self-extinguishing propellant composition having a low pressure deflagration limit of 30 to 200 p.s.i.a. and comprising particulate ammonium perchlorate and a binder in a weight ratio of about 4.5:1 to about 6:1, said binder being a polymer consisting essentially of fluoroalkyl acrylate or methacrylate units polymerized through the ethylenic groups thereof, said biNder being the sole flame retardant component of said composition.