Method for making masterbatch

C - Chemistry – Metallurgy – 08 – J

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C08J 3/22 (2006.01) C08L 101/00 (2006.01)

Patent

CA 2457758

A process for producing a colouring agent (masterbatch) for colouring a polymers is provided, comprising the step of mixing a plastics material, carbon black and waste print powder. The maximum proportion of waste print powder is preferably 50 %. The process enables waste print powder to be recycled in a useful manner, thereby addressing the environmental problem of waste print powder pollution.

L'invention concerne un procédé de production d'un colorant (mélange mère) pour polymères. Ce procédé consiste d'abord à mélanger une matière plastique avec du noir de carbone et des résidus de poudre d'encre. De préférence, les proportions maximales des résidus de poudre d'encre sont de 50 %. Ce procédé permet de recycler les résidus de poudre d'encre de manière utile et de résoudre par la même le problème de pollution environnementale par les résidus de poudre d'encre.

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