Coating processes – Heat decomposition of applied coating or base material
Patent
1995-11-30
1997-03-18
Bell, Janyce
Coating processes
Heat decomposition of applied coating or base material
427377, 4274193, 4274432, B05D 302
Patent
active
056120877
ABSTRACT:
A fibrous electrically-conductive filler herein provided comprises fibrous aluminum borate as a core material provided thereon with, in order, an optional titanium oxide intermediate layer and an antimony-free tin oxide layer. The fibrous electrically-conductive filler can be prepared by a method which comprises the steps of optionally forming an intermediate layer of titanium oxide by depositing titanium oxide hydrate on the surface of the core material and then calcining the titanium oxide hydrate layer; then forming a coating layer of tin oxide hydrate on the surface of the titanium oxide-coated fibrous aluminum borate or the fibrous aluminum borate as a core material and then calcining the coating layer at a temperature ranging from 150.degree. to 600.degree. C. in an inert gas atmosphere or a reducing atmosphere to form an antimony-free tin oxide layer. The fibrous electrically-conductive filler is excellent in whiteness, non-toxic and cheap, has electrical conductivity stable to temperature and humidity changes, has a low volume resistivity, is excellent in a electrical conductivity-imparting effect per unit weight and can accordingly be incorporated into various basic materials such as paper, plastics, rubbers, resins, fibers and paints and varnishes for imparting electrical conductivity to these substances.
REFERENCES:
patent: 4743506 (1988-05-01), Russo et al.
patent: 4933109 (1990-06-01), Yamada et al.
patent: 5273822 (1993-12-01), Hayashi et al.
patent: 5316846 (1994-05-01), Pinsky et al.
Hayashi Takao
Kasahara Nobuyoshi
Kawaratani Kouichi
Sato Norihiro
Bell Janyce
Mitsui Mining & Smelting Co. Ltd.
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