초록 ▼

The present invention is directed to an age-stabilized and/or strengthened ammonium nitrate propellant composition wherein the strengthening agent is selected from the group consisting of azodicarbonamide, dicyandiamide, oxamide and mixtures thereof and wherein the age-stabilizing agent is a molecul

The present invention is directed to an age-stabilized and/or strengthened ammonium nitrate propellant composition wherein the strengthening agent is selected from the group consisting of azodicarbonamide, dicyandiamide, oxamide and mixtures thereof and wherein the age-stabilizing agent is a molecular sieve having a pore size of 13 angstroms or less.

대표청구항 ▼

1. An age-stabilized ammonium nitrate propellant composition consisting essentially of:ammonium nitrate having a crystalline phase present in an amount from about 40% to about 85%, a synthetic zeolite having a pore size from about 3 angstroms to about 13 angstroms present in an amount from about 0.2

1. An age-stabilized ammonium nitrate propellant composition consisting essentially of:ammonium nitrate having a crystalline phase present in an amount from about 40% to about 85%, a synthetic zeolite having a pore size from about 3 angstroms to about 13 angstroms present in an amount from about 0.2% to about 0.4%, and a binder present in an amount from about 3% to about 40% by weight of said composition, wherein said ammonium nitrate, synthetic zeolite and binder are each present in an amount effective to stabilize the crystalline phase of said ammonium nitrate, provide said composition a shelf-life of at least about 5 years, and produce a composition that is substantially smoke-free upon combustion.