Hydroxy terminated polybutadiene based polyurethane bound propel

Details Hydroxy terminated polybutadiene based polyurethane bound propel Hydroxy terminated polybutadiene based polyurethane bound propel

1976-11-15

1978-07-04

Lechert, Jr., Stephen J.

Explosive and thermic compositions or charges

Structure or arrangement of component or product

Solid particles dispersed in solid solution or matrix

149 199, 149 42, 149 43, C06B 4510

Patent

active

040986268

ABSTRACT:
Salicylate esters have been found to be suitable blocking agents for polyisocyanates, enabling preparation of hydroxy terminated polybutadiene based polyurethane bound propellant grains having extended pot life. Unblocking occurs readily at normal propellant cure temperatures, allowing normal cure rates.

REFERENCES:
patent: 3951704 (1976-04-01), Stack

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