Chemistry of inorganic compounds – Sulfur or compound thereof – Oxygen containing
Reexamination Certificate
2006-03-14
2006-03-14
Silverman, Stanley S. (Department: 1754)
Chemistry of inorganic compounds
Sulfur or compound thereof
Oxygen containing
C029S623100, C029S623500, C429S227000, C429S228000
Reexamination Certificate
active
07011805
ABSTRACT:
The production of tetrabasic lead sulfate by means of solid state reactions at high temperatures allow the formation of powders having a particle size of less than 10 μm. In the methods the chemical reaction that takes place between lead oxide and different sulfated compounds occurs in a single high temperature treatment. The sulfated compounds used in the present invention to produce the tetrabasic lead sulfate are: PbSO4, 3PbO.PbSO4.H2O, H2SO4and (NH4)2SO4. There are lead-acid battery pastes produced using the tetrabasic lead sulfate made, the lead-acid battery plates made with the pastes, and the lead-acid batteries subsequently made with the plates.
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Flores-Lira Ricardo
Garza-De La Garza Sanjuana
Foley & Lardner LLP
GES Technologies IP GmbH
Hertzog Ardith E.
Silverman Stanley S.
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