C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
C08J 3/12 (2006.01) B01J 2/00 (2006.01) B01J 2/04 (2006.01) B01J 2/20 (2006.01) C09D 5/03 (2006.01) C09D 5/46 (2006.01)
Patent
CA 2194186
A process for the preparation of electrostatically charged particles of a high resistivity material which process comprises incorporating a unipolar charge into the material at a temperature at or above the glass transition temperature thereof or above the melting point thereof, the said unipolar charge being incorporated into the bulk of the material and the charged material being subsequently comminuted, or the said charge being incorporated into the material whilst forming particles thereof.
Un procédé de préparation de particules, chargées de manière électrostatique, en matériau à haute résistivité, consiste à introduire une charge unipolaire dans le matériau, à une température égale ou supérieure à sa température de transition vitreuse, ou supérieure à son point de fusion. Cette charge unipolaire est introduite dans la masse du matériau, et le matériau chargé est ensuite réduit en morceaux, ou bien la charge est introduite dans le matériau lors de sa réduction en particules.
Smart & Biggar
University Of Southampton
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