Compositions – Electrically conductive or emissive compositions
Reexamination Certificate
2005-12-06
2005-12-06
Kopec, Mark (Department: 1751)
Compositions
Electrically conductive or emissive compositions
C528S422000, C427S388100
Reexamination Certificate
active
06972098
ABSTRACT:
The invention provides coatings useful for preventing corrosion of metals. The coatings comprise a film-forming resin and conductive polymers comprising linearly conjugated π-systems and residues of sulfonated lignin or a sulfonated polyflavonoid or derivatives of sulfonated lignin or a sulfonated polyflavonoid. The invention also provides a latex formulation of the coatings, and articles of manufacture comprising a metal substrate and a coating in contact with the metal substrate.
REFERENCES:
patent: 6231789 (2001-05-01), Hawkins et al.
patent: 6440332 (2002-08-01), Geer et al.
patent: 6569651 (2003-05-01), Samuelson et al.
patent: 6627117 (2003-09-01), Geer et al.
Berry et al “Corrosion Prevention of cold rolled steel using water dispersible lignosulfonic acid-doped polyaniline”, PolymerPreprints 2000, 41(2).
Borda Gary
Heald Randall M.
Kopec Mark
Miller Guy
The United States of America as represented by the Administrator
LandOfFree
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