Precursor formulations of a solid propellant, solid propellants including a reaction product of the precursor formulation, rocket motors including the solid propellant, and related methods
US11192831B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Jul 13, 2017 |
| Grant date | Dec 7, 2021 |
| Priority date | — |
| Expiry date | Apr 20, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2220/80
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A precursor formulation comprising, before curing, a hydroxyl-terminated polybutadiene (HTPB) prepolymer or a hydroxyl-terminated polyether (HTPE) prepolymer, an oxidizer, a dimer fatty diol, and an isocyanate curative. A solid propellant comprising a reaction product of the HTPB prepolymer or HTPE prepolymer, the dimer fatty diol, and the isocyanate curative is also disclosed, as is a rocket motor comprising a case and a solid propellant in the case, the solid propellant comprising the reaction product and an oxidizer. A method of reducing a burn rate of a solid propellant is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.