Patent ID: 8877833
Filing Date: 2014-11-04
Classification: C01P,C08K,C09C,C09D,Y10T

Abstract:
1. An aqueous particulate composition for self-deposition on metal surfaces, having a pH of less than 4, comprising components: a. 0.5-10% by weight of at least one dispersed organic binder (B), b. 0.02-0.3% by weight of iron (III) ions, c. fluoride ions in an amount such that a molar ratio of fluoride ions to iron (III) ions from water-soluble compounds amounts to at least 2:1, and d. dispersed pigment-binder particles, comprising a pigment portion and a binder portion (B1), said binder portion (B1) comprising a polymerizate of monomers having polymerizable double bonds, at least one of said monomers having at least one acid group, such that the binder portion (B1) has an acid number of at least 20 mg KOH/g;