19-09-2013 дата публикации
Номер: US20130244022A1
The present invention relates to dielectric coatings and articles having high, but precisely defined specific surface resistances. 1. Dielectric coatings and articles , characterised in that the coatings and articles , in each case having specific surface resistances of greater than or equal to 10ohm , comprise one or more semiconducting pigments , a dielectric binder and optionally further dielectric additives , where the pigment volume concentration of the semiconducting pigment in the dielectric coating or in the article is ≧10%.2. Dielectric coatings and articles according to claim 1 , characterised in that the specific powder resistance of the semiconducting pigment is ≧100 kohm*cm and less than 1 gigaohm·cm.3. Dielectric coatings and articles according to claim 1 , characterised in that the specific powder resistance of the semiconducting pigment is greater than 100 kohm*cm and less than 1 gigaohm·cm.4. Dielectric coatings and articles according to claim 1 , characterised in that the semiconducting pigment consists of tin oxide claim 1 , doped tin dioxide claim 1 , supports coated with tin oxide or doped tin dioxide claim 1 , doped titanium dioxide claim 1 , titanium suboxide claim 1 , or supports coated with titanium dioxide or titanium suboxide.5. Dielectric coatings and articles according to claim 1 , characterised in that the pigment is selected from the group{'sub': '2', 'mica flake+SnOlayer (doped)'}{'sub': 2', '2, 'mica flake+SnOlayer (doped)+TiOlayer'}{'sub': 2', '2, 'mica flake+SnOlayer (doped)+SiOlayer'}{'sub': '2', 'mica flake+SnOlayer (doped)+ZnO layer'}{'sub': 2', '2', '3, 'mica flake+SnOlayer (doped)+CrOlayer'}{'sub': 2', '2', '3, 'mica flake+SnOlayer (doped)+AlOlayer'}{'sub': 2', '3', '2, 'AlOflake+SnOlayer (doped)'}{'sub': 2', '3', '2', '2, 'AlOflake+SnOlayer (doped)+TiOlayer'}{'sub': 2', '3', '2', '2, 'AlOflake+SnOlayer (doped)+SiOlayer'}{'sub': 2', '3', '2, 'AlOflake+SnOlayer (doped)+ZnO layer'}{'sub': 2', '3', '2', '2', '3, 'AlOflake+ ...
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