New metal-interacting amphiphilic compounds e.g. useful as corrosion inhibitors, adhesion promoters, primers, passivation agents or conversion layer formers

摘要

Metal-interacting amphiphilic compounds (I) are new. Amphiphilic compounds of formula (I) are new. X-Y-L-(W-Z) n(I) X : a terminal group capable of undergoing strong chemical and/or physical interactions with metal surfaces, selected from acid groups or their salts or hydrolyzable Si-containing groups; Y : a 5-60C hydrocarbon group comprising linearly linked units of the same type; n : 1-3; L : S, SS, COO, OCO, CONR 1, OCONR 1, NR 1COO, NR 1CONR 1, NR 1, N, NR 1CR 1, CON, NR 1CON, CONR 1CR 1, NR 1C, NR 1CH 2C, OC, OCH 2C, CONR 1CH 2C, COOC or COOCH 2C; R 1H or 1-4C alkyl; W : a hydrophilic group; Z : a (non)reactive terminal group; provided that X is not COOH when L is COO. Independent claims are also included for: (1) composition for treating metal surfaces, comprising at least one compound (I) and a solvent; (2) composite comprising a metal layer, a layer comprising at least one compound (I) and another layer.