In accordance with the domestic production and application cases for pitch as impregnating agent, Suggestions for speeding up the commercial production of pitch as impregnating agent are given.

根据国内浸渍剂沥青的生产和使用情况，提出了加快浸渍剂沥青工业化生产的建议。

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Solvent impregnating resins (SIR) have been prepared by impregnating macroporous styrene-divinylbenzene copolymer adsorption resins (SDAR) in the solution of extracting agent N235.

用萃取剂N_（235）（多种叔胺混合物）浸渍大孔苯乙烯-二乙烯基苯吸附树脂（SDAR）制备了溶剂浸渍树脂（SIR）。

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