Combustion inhibitors on a base of oxygenated polyurethane elast

Details Combustion inhibitors on a base of oxygenated polyurethane elast Combustion inhibitors on a base of oxygenated polyurethane elast

1983-12-20

1985-08-20

Nelson, Peter A.

Explosive and thermic compositions or charges

Structure or arrangement of component or product

Solid particles dispersed in solid solution or matrix

102290, 523180, 149 98, C06B 4510

Patent

active

045362351

ABSTRACT:
A combustion inhibitor for a double base propellant is described which comprises a polyurethane elastomer having in chemically combined form a compound which is an aliphatic polyester polyol or an aliphatic polyether polyol, or a mixture thereof, which compound contains 2-6 hydroxyl groups per molecule, and an aliphatic polyisocyanate. The inhibitor also contains 0.1-10 parts by weight of mineral fibers or thermostable organic fibers of length between 0.1 mm and 15 mm per 100 parts inhibitor. The inhibitor may contain an organic gasifiable charge and an aliphatic plasticizer.

REFERENCES:
patent: 3924405 (1975-12-01), Cohen et al.
patent: 4187215 (1980-02-01), Wrightson
patent: 4232608 (1980-11-01), Wrightson
patent: 4284442 (1981-08-01), Voigt, Jr.

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