Solid propellants containing polyether or polyester binders

Details Solid propellants containing polyether or polyester binders Solid propellants containing polyether or polyester binders

C - Chemistry, Metallurgy

08

F

52/13, 402/193,

C08F 8/14 (2006.01) C06B 21/00 (2006.01) C06B 45/10 (2006.01) C06D 5/06 (2006.01) C08C 19/34 (2006.01) C08F 8/02 (2006.01) C08F 110/00 (2006.01) C08F 136/04 (2006.01) C08L 63/00 (2006.01)

Patent

CA 1062847

ABSTRACT OF THE DISCLOSURE Novel cross-linked elastomer derivatives of hydroxyl-terminated polyolefin are provided herein. They may be prepared by a single stage or a two stage procedure involving reacting a particularly recited hydroxyl- terminated polyolefin, namely, polybutadiene, polypentadiene, polyheptadiene, polyisoprene, polyethylene, polybutylene or polypropylene, each having hy- droxyl end groups, a particularly recited acid anhydride, namely succinic an- hydride, methylsuccinic anhydride, benzenedicarboxylic anhydride, phthallic anhydride, cyclobutanedicarboxylic anhydride, 3-methylgletaric anhydride, hexahydro-4-methylphthallic anhydride or 1,2-cis-cyclohexanedicarboxylic an- hydride, and a particularly recited epoxide, namely a diglycidyl ether of polyoxypropylene glycol, an epoxide derivative of triglycidyl glycerol, 3,4- epoxycyclohexylmethyl-3'4'-epoxycyclohexane carboxylates, bis(3,4-epoxy-6- methylcyclohexyl-methyl) adipate, N,N-diglycidyl-p-aminophenylglycidyl ether. the epoxy derivative of sebacic acid, or condensation products of epichloro- hydrin and bisphenol-A in the presence of a metallic salt as catalyst or a metallic coordination compound. Propellants are also provided containing up to 88% of solid ammonium perchlorate in the powder form and aluminum powder and the cross-linked elastomer derivative of such hydroxyl terminates poly- olefin as a binders. The physical and mechanical properties from these pro- pellants depended on the ratios and on the order of addition of each ingredi- ent, the curing temperatures and the presence of surface-active agents.

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