| 摘要 |
PCT No. PCT/EP91/01873 Sec. 371 Date Apr. 2, 1993 Sec. 102(e) Date Apr. 2, 1993 PCT Filed Oct. 1, 1991 PCT Pub. No. WO92/06414 PCT Pub. Date Apr. 16, 1992.Aryl and aralkyl sulfide, sulfoxide or sulfone compounds as charge regulators Use of aryl sulfide, sulfoxide or sulfone compounds (sic) of the structural type <IMAGE> where m is 1, 2 or 3 and n is 0, 1 or 2 and A and B are a hydrogen or metal ion, an ammonium, immonium or guanidinium ion or a phosphonium, arsonium or stilbonium ion, as charge regulators for electrophotographic toners, developers, powders and powder coatings. Use of aryl sulfide, sulfoxide or sulfone compounds having the structural type (I), in which m=1, 2 or 3, n=0, 1 or 2 and A and B represent a hydrogen or metal ion, an ammonium, immonium or guanidinium ion or a phosphonium, arsonium or stilbonium ion, as charge regulators for electrophotographic toners, developers, powders or powder coatings.
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