Copolymerized bis-(ethylene oxy) methane polysulfide polymer and hydroxyl terminated poly butadiene as a solid fueled ramjet fuel
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United States of America
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Apr 19, 2017
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Apr 19, 2017
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Abstract
The application relates to a Ramjet solid fuel having an ignition temperature of less than 400° C., the fuel comprising a bis-(ethylene oxy) methane polysulfide polymer (BMPP) and hydroxyl-terminated polybutadiene (HTPB), the copolymer having a BMPP/HTPB weight ratio of from 1/3 to 3/1; and the fuel comprising at least 85 weight % copolymer. The BMPP comprises from 5 to 8 weight percent mercaptan. Furthermore, the BMPP is selected from
- where R═—(CH2)2OCH2O(CH2)2— and a+b+c<7; andH(SC2H4OCH2OC2H4S)nH where n=7. b)
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