Dimer isocyanate liner compositions

Details Dimer isocyanate liner compositions Dimer isocyanate liner compositions

1978-12-04

1980-11-11

Ansher, Harold

Ammunition and explosives

Igniting devices and systems

86 1R, 149 3, 156310, 156331, 428420, 4284231, 4284233, F02K 904, C06B 4510, F42B 100, B32B 2740

Patent

active

042326087

ABSTRACT:
A composition is disclosed in which a solid isocyanate compound such as toluene-diisocyanate dimer is dispersed within a polyurethane based on a hydroxy-terminated organic compound, preferably polybutadiene. The composition can be fully cured on a surface and yet provides an excess of stable material, i.e. dormant isocyanate containing groups, which are reactive on demand to strengthen interfaces with adjacent layers containing available hydroxyl groups, such as a layer of solid polyurethane-based propellant, without the need for intermediate reactive coatings.

REFERENCES:
patent: 3198692 (1965-08-01), Bridgeford
patent: 3255068 (1966-06-01), Smith
patent: 3255069 (1966-06-01), Crowley et al.
patent: 3433158 (1969-03-01), Pierce
patent: 3442744 (1969-05-01), Teter et al.
patent: 3507114 (1970-04-01), Webb
patent: 3693548 (1972-09-01), Dereich et al.
patent: 4099376 (1978-07-01), Japs

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