New saline structural silicates with trialkyl-perfluoroalkenyl-ethyl-ammonium cation and other saline silicates are used as charge regulator in electrophotographic toner, powder lacquer, electret material or electrostatic separation

摘要

Saline structural silicates (IA) comprising the silicate hectorite, beidellite, illite, muscovite, xanthophyllite, margarite, sepiolite, saponite, mica, feldspar, nontronite, montmorillonite, smectite, bentonite, faujasite, zeolite A, X or Y, permutite, sasil or a combination of these and a trialkyl-2-(perfluoro-alk-1-en-1-yl)-ethyl-ammonium cation (II) are new. Saline structural silicates (IA) comprising the silicate hectorite, beidellite, illite, muscovite, xanthophyllite, margarite, sepiolite, saponite, mica, feldspar, nontronite, montmorillonite, smectite, bentonite, faujasite, zeolite A, X or Y, permutite, sasil or a combination of these and a trialkyl-2-(perfluoro-alk-1-en-1-yl)-ethyl-ammonium cation of formula (II) are new. R28 = 5-11 carbon (C) perfluoroalkyl; and R29, R30, R31 = 1-5C, preferably 1-2C, alkyl. Independent claims are also included for: (a) the use of a wider range of saline structural silicates (I) as charge regulators in electrophotographic toners and developers, powder lacquers, electret materials and electrostatic separation processes, in which (I) have an ammonium (NH4+), hydronium (H3O+), alkali(ne earth), earth and/or transition metal and/or low-molecular organic cation, whilst the anion is an islet, ring, group chain, strip, foliated and/or skeletal silicate. (b) the preparation of (IA); and (c) electrophotographic toners, powders or powder lacquers containing a binder, (I) and optionally a colorant.