In this paper, the new chelating resin (PSIM) with a polythioether backbone bearing imidazole group is first synthesized by the reaction between polychloromethylthiirane and imidazole.

通过聚环氯丙烷与咪唑进行高分子反应，合成了以聚醚、侧带有咪唑基团的螯合树脂（简称PSIM）。

The conversion film is probably constituted of amorphous and pored alloying tannate chelate.

这种转化膜很可能是由有一定孔隙的非晶态合金单宁膜层构成.

3, A chelating agent which forms an easily water-soluble metal chelated compound such as nitrilotriacetate (NTA) or ethylene diamine tetraacetate (EDTA) is incorporated in a detergent composition.

在洗衣粉中掺入螯合剂，如次氮基三乙酯（NTA）或者是乙二胺四乙酯（EDTA），这些螯合剂易于形成水溶性的金属螯合物。