Chemistry of inorganic compounds – Halogen or compound thereof – Binary fluorine containing compound
Reexamination Certificate
2007-08-28
2007-08-28
Nguyen, Ngoc-Yen (Department: 1754)
Chemistry of inorganic compounds
Halogen or compound thereof
Binary fluorine containing compound
C423S493000, C502S159000, C502S169000, C502S151000
Reexamination Certificate
active
10662961
ABSTRACT:
A method of producing nano metal fluoride powders comprising the steps of mixing an aqueous or organic continuous phase comprising at least one metal cation salt with a hydrophilic or organic polymeric disperse phase forming a metal cation salt/polymer gel and then treating said gel with anhydrous hydrofluoric acid to convert said metal cation salt to metal cation fluoride and heat treating the gel at a temperature sufficient to drive off water and/or organics within the gel, leaving a residue of nano-size metal fluoride powder.
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Fulbright & Jaworski LLP
Nguyen Ngoc-Yen
Platinum Intellectual Property, LP
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