Improved process of treating zinc-white or similar metallic oxides, lithopone and white lead for use in the preparation of paint

摘要

252,756. Lorberche, A. van. Jan. 2. 1925. Pigments.-Metallic oxides such as zinc white or lead oxides. and also white-lead and lithopone, for use as pigments, are mixed with water to form a moist paste, which is then mixed with saponifiable siccative oil containing free fatty acid, such as linoleic acid, so that a certain amount of metallic soap is formed. The excess water is allowed to escape, and the thick pasty product is ground. The crushed product is stated to be homogenous, siccative, and does not set hard, even under water.