Compositions: coating or plastic – Coating or plastic compositions – Inorganic settable ingredient containing
Reexamination Certificate
2006-09-05
2006-09-05
Marcantoni, Paul (Department: 1755)
Compositions: coating or plastic
Coating or plastic compositions
Inorganic settable ingredient containing
C106S641000, C106S642000, C106S643000, C106S644000
Reexamination Certificate
active
07101429
ABSTRACT:
The present invention provides methods for resisting corrosion of metal elements in concrete, and associated compounds and structures. Acid mine drainage sludge is used as a source of a precursor compound that reacts with a source of anion to form a chloride-sequestering compound. The precursor compound may have the formulain-line-formulae description="In-line Formulae" end="lead"?2Me′(II)O·(Y(2−x),Y′x)O3+qMe′(II)O,in-line-formulae description="In-line Formulae" end="tail"?where at least one of Y and Y′ is present; Y and Y′ are different and are independently selected from the group consisting of Al, Fe, Cr, and not present; Me′ is a cation and is selected from the group consisting of Ca, Ba, Sr, Mn, and Zn; x is a number ranging from 0 to 2; and q is a number ranging from 0 to 2; and combinations thereof. In a preferred embodiment, the precursor compound has the formula 2CaO(Fe(2−x),Alx)O3+CaO.
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352 East Irvin Avenue Limited Partnership
Eckert Seamans Cherin & Mellott , LLC
Marcantoni Paul
Silverman Arnold B.
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