申请人:AMERICAN GILSONITE COMPANY
公开号:EP0632335A1
公开(公告)日:1995-01-04
A composition useful in copying and printing is described. In one embodiment, the composition comprises a purified fraction of uintaite and a thermoplastic polymer. Preferably, the composition comprises a maltene-enriched fraction of uintaite derived by solvent extraction, a thermoplastic polymer and a colorant. In another embodiment, the present invention is an electrophotographic method comprising the steps of generating a latent electrostatic image; developing said latent image with a toner comprising a purified fraction of uintaite; and fixing said toner. The present invention is also a printing ink emulsion comprising a maltene-enriched fraction of uintaite.
本文描述了一种可用于复印和印刷的组合物。在一个实施方案中,该组合物由经过提纯的乌金土馏分和热塑性聚合物组成。优选地,该组合物包括通过溶剂萃取获得的富含麦芽烯的乌金土馏分、热塑性聚合物和着色剂。在另一个实施方案中,本发明是一种电子照相方法,包括以下步骤:生成潜伏静电图像;用包含uintaite纯化馏分的墨粉显影所述潜伏图像;以及固定所述墨粉。本发明也是一种印刷油墨乳剂,包含富含麦芽烯的uintaite馏分。