Back to results
US 4,399,238 AGranted
Alkali metal borohydride concentrate
AssigneeThiokol Corporation
InventorRobert C. Wade
Life of this patent
Estimating the term…
Abstract
Alkali metal borohydride concentrates are prepared by dry blending alkali metal borohydride power with a dry non-reactive plastic resin, melting and extruding the blended mixture to form an encapsulated alkali metal borohydride concentrate, and then chopping the extrusion into pellets. The pellet concentrate may then be blended into other materials.
Claims5
A solid, substantially inert, and stable borohydride blowing agent concentrate mixture prepared from a dried alkali metal borohydride and a dried inert resinous polymer in which reactive protonic hydrogen atoms are substantially absent;
- said concentrate mixture consisting essentially of from about 0.5% to 20% by weight of said alkali metal borohydride, less than about 0.1% absorbed water, balance essentially said dry inert resinous polymer.
Dependencies are inferred from the claim text.