Stock material or miscellaneous articles – All metal or with adjacent metals – Laterally noncoextensive components
Reexamination Certificate
2003-12-08
2010-02-09
McNeil, Jennifer (Department: 1794)
Stock material or miscellaneous articles
All metal or with adjacent metals
Laterally noncoextensive components
C428S615000, C428S680000, C428S452000, C428S464000, C205S109000, C205S238000, C205S255000, C205S261000, C205S271000, C205S557000, C205S615000
Reexamination Certificate
active
07659008
ABSTRACT:
The invention relates to a lubricating metal coating and to a process for its preparation. The material constituting the coating in a composite material comprising a metal matrix within which talc particles are distributed as lamellae, the metal matrix being composed of a metal chosen from Fe, Co, Ni, Mn, Cr, Cu, W, Mo, Zn, Au, Ag, Pb or Sn or of an alloy of these metals or of a metal/semimetal alloy. The coating is obtained by a process consisting in carrying out an electrolytic deposition using a solution of precursors of the metal matrix of the coating which additionally comprises talc particles in suspension, which particles are modified at the surface by irreversible adsorption of a cellulose-derived compound by replacement of all or part of the hydroxyl groups.
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patent: 2003/0205344 (2003-11-01), Lasmarias et al.
R. Ramaswamy et al., “Occlusion Plating of Nickel-Talc Composites”, Metal Finishing, Sep. 1992, pp. 23-26, vol. 90, No. 9, XP-000329877, Elsevier Science Publishing, New York, NY, US (cited in the International Search Report).
Bacchin Patrice
Barthes Philippe
Bonino Jean-Pierre
Ferrage Eric
Martin François
Centre National de la Recherche Scientifique
Crowell & Moring
McNeil Jennifer
Savage Jason L
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