| 摘要 |
New magnesium-aluminum hydroxide-carbonates (I) and (II) with Mg:Al ratio (1.9-3.1):1 are claimed, in which (I) contains over 0 and less than 10 wt.% sebacic acid anions and (II) contains 0.5-50, preferably 1-45 wt.% combination of anions of sebacic acid and 12-44 carbon (C) fatty acid(s), especially stearic acid. Independent claims are also included for the following: 1. Use of foliated double hydroxide salt (III) as charge regulator in electrophotographic toners and developers, powder lacquers, electret materials and electrostatic separation of chargeable materials, in which (III) has mono- and/or di- and trivalent metal cations and organic anion(s) (A) of formula (1): (Structure (1), page 15) X = hydroxyl (OH), carboxy, sulfato or sulfo; Y = carboxy, sulfato or sulfo; R = a divalent ((hetero)cyclo)aliphatic or -olefinic or (hetero)-aromatic or -araliphatic group with not less than 8 carbon (C) atoms, optionally with OH, amino, halogen, 1-22 C alkyl, 1-22 C alkoxy, carboxy, sulfo, nitro or cyano substituent(s) 2. Electrophotographic toner, powder or powder lacquer containing (wt.%) 30-99.99% binder, 0.01-50% salt(s) (III) and optionally 0.001-50% colorant.
|
