Particles of thermoplastic polymer, and process of

专利名称：Particles of thermoplastic polymer, and

process of making the same

发明人：Luigi Amariti,John S. Juskey,Shapoor

Azari,Thomas J. Kucera

申请号：US05/836039申请日：19770923公开号：US04158634A公开日：19790619

摘要：Finely comminuted particles of a normally solid thermoplastic organic polymer,which is particularly useful as a toner base for electrostatic reproduction utilizingpressure fusing on the toner, is prepared by dissolving a polymer in a normally solid firstsolvent, cooling the resulting solution to form a friable solid, and removing the firstsolvent from the solid, preferably by extraction with a normally liquid, relatively volatile,second solvent in which the polymer is substantially insoluble. When using the process tomake magnetic mono- component toners, powered magnetic material and/or carbonblack or other pigment are added to the solution of polymer and first solvent.

申请人：APECO CORPORATION

代理机构：Leydig, Voit, Osann, Mayer & Holt, Ltd.

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