Compositions: coating or plastic – Materials or ingredients – Additive materials for inorganic cements which contain a...
Reexamination Certificate
2007-06-19
2007-06-19
Marcantoni, Paul (Department: 1755)
Compositions: coating or plastic
Materials or ingredients
Additive materials for inorganic cements which contain a...
C106S713000, C106S724000, C106S726000, C106S727000, C106S823000
Reexamination Certificate
active
11388435
ABSTRACT:
Exemplary compositions and methods for reducing hexavalent chromium in cementitious compositions involve the use of a liquid additive composition, comprising stannous chloride. Along with the stannous chloride may be used at least one co-additive comprising an antioxidant, oxygen scavenger, or mixture thereof, and/or at least one agent comprising a cement grinding aid, cement quality improver, or mixture thereof.
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Chun Byong-Wa
Cornman Charles R.
Gupta Vijay
Jardine Leslie A.
Leon Craig K.
Marcantoni Paul
W. R. Grace & Co.,-Conn.
Williams Stephan P.
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