Flexible coatings for elastomer substrates

C - Chemistry – Metallurgy – 09 – D

Patent

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Details

C09D 201/00 (2006.01) C08J 7/04 (2006.01) C09D 115/00 (2006.01) C08K 3/08 (2006.01)

Patent

CA 2477740

Emissive coatings for flexible substrates, preferably elastomers or elastomers bonded to metal are disclosed. The coating composition is formed by combining parts (a) and (b) where part (a) comprises an organic solution or aqueous dispersion of a functional group containing polymer or copolymer and thermal conductive filler; and part (b) comprises a liquid curing component, for example a poly isocyanate, a carbodiimide, or an amino resin. The coating compounds can be applied to an substrate either before or after the substrate has been vulcanized. The coatings can be cured at ambient temperatures and provide heat dissipation over long term service at elevated temperatures.

L'invention concerne des revêtements émissifs destinés à des substrats flexibles, de préférence des élastomères ou des élastomères liés à du métal. La composition de revêtement est formée par combinaison de parties (a) et (b), la partie (a) comprenant une solution organique ou une dispersion aqueuse d'un groupe fonctionnel qui contient un polymère ou un copolymère et un agent de remplissage conducteur thermique; la partie (b) comprenant un composant durcisseur liquide, de type polyisocyanate, cyanamide, ou aminorésine. Les composés de revêtement peuvent être appliqués à un substrat avant ou après vulcanisation de celui-ci. Les revêtements peuvent être durcis à température ambiante et peuvent présenter une dissipation thermique à long terme à des températures élevées.

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