High temperature ablative foam

Details High temperature ablative foam High temperature ablative foam

1991-11-12

1992-09-29

Lovering, Richard D.

Compositions

Inorganic luminescent compositions

Tungsten containing

252609, 244117R, 521 59, 521110, 428116, 428303, 264 52, B01J 1300, C08G 1820, C08G 1824

Patent

active

051512165

ABSTRACT:
An ablative foam composition is formed of approximately 150 to 250 parts by weight polymeric isocyanate having an isocyanate functionality of 2.6 to 3.2; approximately 15 to 30 parts by weight reactive flame retardant having a hydroxyl number range from 200-260; approximately 10 to 40 parts by weight non-reactive flame retardant; approximately 10 to 40 parts by weight nonhydrolyzable silicone copolymer having a hydroxyl number range from 75-205; and approximately 3 to 16 parts by weight amine initiated polyether resin having an isocyanate functionality greater than or equal to 3.0 and a hydroxyl number range from 400-800.

REFERENCES:
patent: 3384599 (1968-04-01), Omietanski
patent: 3388101 (1968-06-01), Wismer
patent: 3399247 (1968-08-01), Windemuth
patent: 3642646 (1972-02-01), Marcus
patent: 3647724 (1972-03-01), Doerge
patent: 3916060 (1975-10-01), Fish et al.
patent: 4077921 (1977-03-01), Sharpe et al.
patent: 4133781 (1979-01-01), Ashida
patent: 4216136 (1980-08-01), Stayner
patent: 4426461 (1984-01-01), Smith
patent: 4687785 (1987-08-01), Parker et al.
patent: 4748255 (1988-05-01), Parker et al.
patent: 4952440 (1990-08-01), Sanmartin et al.

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