New additive concentrates

Details New additive concentrates New additive concentrates

C - Chemistry, Metallurgy

08

J

C08J 3/22 (2006.01) B29C 43/20 (2006.01) C08J 3/00 (2006.01)

Patent

CA 2215687

The invention provides a process for the manufacture of an additive concentrate which comprises particles of size from 5 microns to 10 mm and a binder including the steps of: (a) mixing the particles and the binder in the dry state; (b) pressing the resulting mixture, optionally with heat sufficient to soften the binder, but insufficient to form significant melting of the particles so as to form a coherent body; and (c) optionally comminuting the resulting body.

Cette invention concerne un procédé de fabrication d'un concentré d'additif renfermant des particules d'une grosseur comprise entre 5 microns et 10 mm et un liant. Ce procédé consiste à: (a) mélanger les particules et le liant à l'état sec; (b) comprimer le mélange obtenu, éventuellement à l'aide d'une chaleur suffisante pour ramollir le liant, mais insuffisante pour obtenir un ramollissement significatif des particules et former un corps cohérent; et (c) éventuellement réduire en poudre le corps obtenu.

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