Delayed quick cure rocket motor liner

Details Delayed quick cure rocket motor liner Delayed quick cure rocket motor liner

1985-07-01

1986-07-22

Miller, Edward A.

Plastic and nonmetallic article shaping or treating: processes

Explosive or propellant article shaping or treating

149 2, 149 199, 102290, C06B 2100

Patent

active

046018620

ABSTRACT:
An improvement to the process of applying a rocket motor liner to an inside surface of a rocket motor casing by coating the casing with a rocket motor liner composition and then curing the liner composition. Typical rocket motor liner compositions include the product of a hydroxyl-terminated polybutadiene prepolymer; a diisocyanate curing agent for forming urethane linkages with said prepolymer; a trifunctional aziridine bond promoter; a filler; and a curing catalyst comprising maleic anhydride, magnesium oxide, and triphenyl bismuth. This invention may use an alkaline carbon black filler and/or a curing catalyst which does not include magnesium oxide.

REFERENCES:
patent: 3908358 (1975-09-01), Sutton et al.
patent: 3993514 (1976-11-01), Pacanowsky et al.
patent: 4019933 (1977-04-01), Cucksee et al.
patent: 4184031 (1980-01-01), Graham et al.
patent: 4209351 (1980-06-01), Pierce et al.
patent: 4304185 (1981-12-01), Sayles
patent: 4429634 (1984-02-01), Byrd et al.
patent: 4527389 (1985-07-01), Biddle et al.

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