Flexible emissive 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 2498720

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 conçus pour des substrats souples, de préférence, des élastomères ou des élastomères adhérant à du métal. La préparation de la composition de revêtement consiste à combiner des parties (a) et (b), la partie (a) étant composée d'une solution organique ou d'une dispersion aqueuse d'un groupe fonctionnel contenant un polymère ou un copolymère et une charge thermoconductrice et la partie (b) étant composée d'un constituant durcissant liquide, par exemple, un polyisocyanate, un carbodiimide ou une résine aminée. On peut appliquer les composés de revêtement à un substrat avant ou après la vulcanisation de ce dernier. Ces revêtements peuvent être durcis à des températures ambiantes et produire une dissipation de chaleur sur des périodes prolongées à des températures élevées.

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