Low friction coating
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United States of America Patent
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Apr 22, 2003
Grant Date -
Dec 5, 2002
app pub date -
Jun 11, 1999
filing date -
Dec 13, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Disclosed is a metal sulphide coating composition of the formula M.sub.X Si.sub.V R.sub.Y S.sub.Z F.sub.W where M is one or more metals selected from: Mo, Ti, W, Nb, Ta, Zr, and Hf; Si is silicon; R is one or more elements selected from: C, B, Al, V, Cr, Fe, Co, Ni, Sm, Au, Cu, Zn, Sn, Pb, N, H, and O; S is sulphur; F is fluorine; X is 0.2 to 1.5; V is 0.02 to 3; Y is 0 to 4; Z is 0.2 to 6; and W is 0.01 to 6, and in which X, Y, Z, V, and W are given in amounts by atomic ratio. The compositions show good non-stick properties, low hydrophilia, and high stability.
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