Rocket motor insulation using phosphonitrilic elastomeric compos

Details Rocket motor insulation using phosphonitrilic elastomeric compos Rocket motor insulation using phosphonitrilic elastomeric compos

1989-05-24

1991-06-18

Bell, Janyce

Coating processes

Interior of hollow article coating

427239, 4273882, B05D 722

Patent

active

050248600

ABSTRACT:
A process for forming a low smoke, low erosion rocket motor insulation comprising mixing organic fiber selected from the group polyaramid and polybenzimidazole; an inorganic powder filler; a vulcanizable hydrocarbon elastomer and a non-fluorinated phosphazene polymer of the formula ##STR1## where Q and Q' are the same or different and are substituted or unsubstituted alkoxy or aryloxy and Q" is a group having olefinic unsaturation.

REFERENCES:
patent: 3890092 (1975-06-01), Garner
patent: 4064095 (1977-12-01), Oberster

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