Polymer with ethylenic unsaturations incorporating silylmetallocene groups, process for the manufacture of this polymer, and propellant composition having this polymer as a binder
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United States of America Patent
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May 26, 1987
Issued Date -
N/A
app pub date -
Jun 27, 1986
filing date -
Jul 20, 1984
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Expired
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Abstract
The invention relates to a polymer with ethylenic unsaturations incorporating silylmetallocene groups, a process for the manufacture of these polymers and a propellant composition having the polymer of the invention as a binder. The polymer of the invention incorporates ethylenic unsaturations, to at least some of which there are added silylmetallocene groups of formula ##STR1## in which M denotes a transition metal such as, for example, iron, the radicals R.sub.1, R.sub.2 and R.sub.3 being hydrocarbon radicals. The polymer may be a hydroxytelechelic or carboxytelechelic polybutadiene. This modified polymer is employed as a binder in composite propellant compositions, thus making it possible to solve the problem related to the migration of the combustion catalyst. The invention has application particularly in the field of solid propulsion.
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