Polymer with ethylenic unsaturations incorporating...

Details Polymer with ethylenic unsaturations incorporating... Polymer with ethylenic unsaturations incorporating...

C - Chemistry, Metallurgy

08

C

402/7.3

C08C 19/26 (2006.01) C06B 45/10 (2006.01)

Patent

CA 1258943

Abstract Polymer with ethylenic unsaturations incorporating silylmetallocene groups, process for the manufacture of this polymer, and propellant composition having this polymer as a binder. The invention relates to a polymer with ethylenic unsaturations incorporating silylmetallocene groups, a process for the manufacture of these polymers and a pro- pellant composition having the polymer of the invention as a binder. The polymer of the invention incorporates ethy- lenic unsaturations, to at least some of which there are added silylmetallocene groups of formula Image in which M denotes a transition metal such as, for example, iron, the radicals R1, R2 and R3 being hydro- carbon radicals. The polymer may be a hydroxytelechelic or carboxytelechelic polybutadiene. This modified poly- mer is employed as a binder in composite propellant compositions, thus making it possible to solve the prob- lem related to the migration of the combustion catalyst. The invention has application particularly in the field of solid propulsion.

486067

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