Solid 5-aminotetrazole nitrate gas generating propellant with block copolymer binder

• US 3,898,112 A
• Filed: 09/23/1970
• Issued: 08/05/1975
• Est. Priority Date: 09/23/1970
• Status: Expired due to Term

• Current Assignee: Hermann S. Haiss, Ruediger A.H. Strecker
• Original Assignee: Hermann S. Haiss, Ruediger A.H. Strecker
• Inventors: Haiss, Hermann S., Strecker, Ruediger A. H.
• Primary Examiner(s): Padgett, Benjamin R.
• Assistant Examiner(s): Miller, E. A.
• Application Number:
  US05/074,894
• Time in Patent Office: 1,777 Days
• Field of Search: 149/19,19.9,19.91,92
• US Class Current: 149/19.9
• CPC Class Codes: C06B 25/04 the nitrated compound being an aromatic
• CPC Class Codes: C06B 45/10 the organic component containing a resin

Abstract

A solid gas generating propellant based upon 5-aminotetrazole nitrate as the oxidant component and utilizing a binder matrix of a block copolymer selected from the group consisting of styrenebutadiene-styrene and styrene-isoprene-styrene.

Claims

1. A GAS GENERATING SOLID PROPELLANT COMPOSITION COMPRISING 5-AMINOTETRAZOLE NITRATE AS THE OXIDANT AND A BINDER MATRIX SELECTED FROM THE GROUP CONSISTING OF A STYRENE-BUTADIENE-STYRENE BLOCK COPOLYMER AND A STYRENE-ISOPRENE-STYRENE BLOCK COPOLYMER.

2. The gas generating solid propellant composition of claim 1 wherein said styrene-butadiene-styrene and said styrene-isoprene-styrene block copolymers have a molecular weight within the range of from about 60,000 to about 100,000 and a styRene content of from about 28 to 29 percent by weight.

3. The gas generating solid propellant composition of claim 2 wherein said 5-aminotetrazole nitrate is present in an amount within the range of from about 75 to 87 percent by weight and said block copolymer is present in an amount within the range of from about 13 to about 25 percent.

4. The gas generating solid propellant composition of claim 3 wherein said block copolymer is styrene-butadiene-styrene.

5. The gas generating solid propellant composition of claim 3 which further includes a minor amount of a material selected from the group consisting of an organic anti-oxidant, an organic plasticizing agent and mixtures thereof.