Patent ID: 6527825
Filing Date: 2003-03-04
Classification: B01J,B22F,B82Y,C01B,C01F,C01G,C01P

Abstract:
A process for preparing nanoscale metal or metal-based powder comprising the steps of(1) forming a composition consisting essentially of (a) a solution containing at least one metal salt and (b) an amphiphilic ethylene oxide-containing copolymer wherein the copolymer has an average molecular weight of greater than 400, an ethylene oxide content of 1 to 90 percent and an HLB of between âˆ’15 and 15 by mixing (a) and (b) and (2) calcining the composition of step 1 at a temperature sufficient to drive off organics from the composition, with the proviso that aluminum is not the sole metal.