Process for coating the surface of plastics

Details Process for coating the surface of plastics Process for coating the surface of plastics

C - Chemistry, Metallurgy

08

J

C08J 7/04 (2006.01) C09D 179/02 (2006.01)

Patent

CA 2440441

The invention relates to a process for coating the surface of plastics comprising the steps of: i) absorbing one or more internal reagent(s) in the plastic to be coated; ii) contacting one or more external reagent(s) with the surface of said plastic; iii) forming an immobilised coating by a chemical reaction between the internal reagent(s) and the external reagent(s) both diffusing to the boundary layer of said plastic, preferably in the presence of an additive.

La présente invention concerne un procédé pour appliquer un revêtement à la surface de matières plastiques. Ce procédé consiste i) à faire absorber un ou plusieurs réactif(s) interne(s) dans la matière plastique, ii) à mettre en contact un ou plusieurs réactif(s) externe(s) avec la surface de ladite matière plastique, puis iii) à produire un revêtement immobilisé, au moyen d'une réaction chimique entre le(s) réactif(s) interne(s) et le(s) réactif(s) externe(s), qui se diffusent les deux à la couche limite de ladite matière plastique, de préférence en présence d'un adjuvant.

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