Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Particulate matter
Reexamination Certificate
2005-05-02
2008-12-09
Buttner, David (Department: 1796)
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Particulate matter
C427S216000, C106S014410, C106S014420, C106S404000, C106S403000, C106S460000, C523S200000, C523S206000, C523S458000, C523S459000, C524S431000, C524S434000, C524S435000, C524S437000
Reexamination Certificate
active
07462394
ABSTRACT:
The present invention is directed to a passivating material suitable for passivating a metal surface. The passivating material comprises a polymer which comprises (a) at least one nitro group, and/or pyridine group, and/or phenolic hydroxyl group; and (b) at least one group selected from a phosphorous-containing group and/or a carboxylic acid group, wherein the at least one phosphorous-containing group is selected from a phosphate, a phosphite, or a non-nitrogen substituted phosphonate.
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Hart Michael
Lamers Paul
Ragunathan Kaliappa G.
Rardon Daniel
Swarup Shanti
Altman Deborah M.
Buttner David
Diaz Robert A.
PPG Industries Ohio Inc.
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