Conductive coating material

C - Chemistry – Metallurgy – 09 – D

Patent

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Details

C09D 5/24 (2006.01) C09D 163/00 (2006.01) H01B 1/24 (2006.01) H01M 4/66 (2006.01)

Patent

CA 2203831

The invention concerns the manufacture of paints and varnishes based on polymer film-forming binders and can be used in various technical fields to obtain film-like electroconductive paint or varnish coatings (resists) on large-area substrates used in devices and systems intended predominantly for space heating. The electrically conducting paint contains an epoxy binder, a carbonaceous filler in the form of a graphite/soot mixture, the relative weight proportion of graphite to soot being 0.1 to 1.0, a curing agent and an organic solvent. The relative proportions by weight of these components are as follows: epoxy binder 8-20 wt.%, carbonaceous filler 11-39 wt.%, curing agent 0.5-1.5 wt.%, organic solvent the balance.

L'invention concerne la fabrication de peintures et de vernis à base de liants polymères filmogènes et peut être utilisée dans divers domaines techniques pour obtenir des revêtements (réserves) de type peinture ou vernis électroconducteur sous forme de film sur des substrats de grande surface utilisés dans des dispositifs et des systèmes destinés essentiellement au chauffage de locaux. La peinture électroconductrice contient un liant époxy, une charge carbonée se présentant sous la forme d'un mélange de graphite/suie, la proportion relative en poids du graphite et de la suie étant comprise entre 0,1 et 1,0, un agent de durcissement ainsi qu'un solvant organique. Les proportions relatives en poids de ces constituants sont les suivantes: liant époxy 8 à 20 % en poids, charge carbonée 11 à 39 % en poids, agent de durcissement 0,5 à 1,5 % en poids, un solvant organique constituant le reste.

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