Mixture for applying a non-corrosive, polymer coating which...

C - Chemistry – Metallurgy – 08 – K

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C08K 3/22 (2006.01) B23K 35/22 (2006.01) C08K 3/08 (2006.01) C08K 5/00 (2006.01) C09D 5/08 (2006.01) C09D 5/10 (2006.01) C09D 5/24 (2006.01) H01B 1/22 (2006.01)

Patent

CA 2484314

The invention relates to a mixture for applying a polymer, non-corrosive, electroconductive coating which can be shaped in a low-abrasive manner, to a base. Said mixture contains at least one substance A in the form of electroconductive hard particles, at least one substance B in the form of very soft or soft, inorganic, sliding, electroconductive or semiconductive particles, and/or at least one substance C in the form of metallic, soft or hard, electroconductive or semiconductive particles and/or soot, and optionally other constituents such as an anticorrosion pigment D, the sum of the parts by weight of the inorganic sliding particles B and the metallic particles and/or soot C amounting to between 0.25 and 99.5 % of the parts by weight of the water-insoluble or only slightly water-soluble pigmentation S (A + B + C), and the size of the electroconductive hard particles A amounting to less than 10 m in relation to the particle size transfer value d99. The invention also relates to a method for producing a non-corrosive, viscoplastic coating on a base, said coating containing polymer and inorganic particles, and to an electroconductive coating containing polymer and inorganic particles.

L'invention concerne un mélange destiné à l'application sur un support, d'un revêtement polymère résistant à la corrosion, pouvant être façonné sans usure, électroconducteur ou semiconducteur. Le mélange contient une substance A se présentant sous la forme de particules dures électroconductrices, au moins une substance B se présentant sous la forme de particules électroconductrices ou semiconductrices, glissantes, anorganiques, souples ou très souples, et au moins une substance C se présentant sous la forme de particules métalliques et/ou suies électroconductrices ou semiconductrices, souples ou dures, ainsi que d'autres composants tels que par ex. un pigment anticorrosion D, la somme des parts en poids des particules anorganiques glissantes B et des particules métalliques et/ou suies C étant de 0,25 à 99,5 % en poids des parts en poids de la pigmentation insoluble ou peu soluble dans l'eau S (A + B + C), et la taille des particules dures électroconductrices par rapport à la valeur de transfert granulométrique d¿99? étant inférieure à 10 ?m. L'invention concerne également un procédé de fabrication sur un support, d'un revêtement viscoélastique résistant à la corrosion, contenant des particules polymères et anorganiques, ainsi qu'un revêtement électroconducteur contenant des particules polymères et anorganiques.

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