John Gergely - Avondale PA, US Edwin Marston - Wilmington DE, US Shekhar Subramoney - Hockessin DE, US Lu Zhang - Midlothian VA, US
International Classification:
C01G 49/08
US Classification:
252062560, 977900000
Abstract:
A process for preparing superparamagnetic transition metal nanoparticles by introducing into a gas stream a hydrocarbon and a transition metal carboxyl wherein the transition metal carbonyl is introduced downstream from the hydrocarbon; wherein at the point of introduction of the hydrocarbon the gas stream is in the form of a plasma, and wherein at the point of introduction of the transition metal carbonyl the gas stream is at a temperature of at least 1000 C.; followed by quenching to form carbon-coated transition metal nanoparticles; and wherein the gas stream consists essentially of at least one inert gas and hydrogen.
Compositions Of Carbon Nanosheets And Process To Make The Same
Jingjing Xu - Wilmington DE, US Charles Molnar - Wilmington DE, US Shekhar Subramoney - Hockessin DE, US Michael Crawford - Glen Mills PA, US John Gergely - Avondale PA, US Lu Zhang - Midlothian VA, US Edwin Marston - Wilmington DE, US
International Classification:
C09D 11/00 C09D 5/00
US Classification:
523161000, 977900000
Abstract:
The present invention is a dispersion composition comprising (1) a curable mixture of monomers, oligomers, or a combination thereof; and (2) superparamagnetic particles dispersed in the mixture of part (1) and a method for preparing such superparamagnetic particles. The composition of the present invention can be useful as a tool for detecting and/or deterring theft, counterfeiting, or the like in commercial transactions.
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