Coating processes – Immersion or partial immersion – Metal base
Patent
1991-02-21
1993-08-03
Beck, Shrive
Coating processes
Immersion or partial immersion
Metal base
4274431, 106 127, C23C 2600
Patent
active
052327442
ABSTRACT:
A composite film consisting of particles of fibers dispersed in a metal matrix and formed by electroless deposition can be improved in appearance and particle or fiber content by adding a water-soluble amine or ammonium salt to the electroless plating bath. Preferably the bath contains a water-soluble nickel or cobalt salt, a hypophosphite reducing agent, a chelating agent for chelating the nickel or cobalt ion, a surface active agent, water-insoluble particles or fibers typically of polytetrafluoroethylene, and the water-soluble amine or ammonium salt.
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Chiba Tadashi
Nakamura Takayuki
Beck Shrive
C. Uyemura & Co., Ltd.
Dang Vi Duong
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