Accession Number : ADD016035

Title :   Thermoplastic Elastomers Having Alternate Crystalline Structure for Us as High Energy Binders.

Descriptive Note : Patent, Filed 6 Jan 92, patented 11 May 93,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Manser, Gerald E ; Miller, Richard S

Report Date : 11 May 1993

Pagination or Media Count : 8

Abstract : Novel block polymers which are thermoplastic elastomers are provided for use as binders in high-energy compositions such as propellants, explosives, gasifiers or the like. The block polymers have an ABA structure wherein the A blocks are crystalline at temperatures below 60 deg C. and the B blocks are amorphous at temperatures above -20 deg C. Both the A and B blocks are polyethers formed from monomers of oxetanes and/or tetrahydrofuran. The block polymers melt in the range of 60' C. to 120' C. and have low viscosities above their melting points due to mutual miscibility of the A and B blocks.

Descriptors :   *BINDERS, *BLOCK POLYMERS, *ELASTOMERS, *PATENTS, *THERMOPLASTIC RESINS, ENERGY, EXPLOSIVES, HIGH ENERGY, MELTING, MELTS, MONOMERS, OXETANES, POLYETHERS, POLYMERS, PROPELLANTS, STRUCTURES, TEMPERATURE, SOLUBILITY

Subject Categories : Elastomers and Rubber
      Ammunition and Explosives

Distribution Statement : APPROVED FOR PUBLIC RELEASE