Patent ID: 6899770
Filing Date: 2005-05-31
Classification: C09D,C10M,C10N

Abstract:
1. A process for treating a metal surface to reduce the coefficient of sliding friction thereon, said process comprising operations of: (I) forming over said metal surface a coating of a liquid composition that before, during, or both before and during drying reacts with said metal surface to produce a modified solid surface with a lower coefficient of sliding friction than said metal surface; and (II) drying said coating of liquid composition into place on said metal surface over which it was formed in operation (I), without intermediate rinsing, wherein the liquid composition comprises water and the following components: (A) dissolved, dispersed, or both dissolved and dispersed organic film-forming resin; (B) dissolved, dispersed, or both dissolved and dispersed wax that is not part of immediately previously recited component (A); (C) dissolved, dispersed, or both dissolved and dispersed hexavalent chromium; (D) dissolved, dispersed, or both dissolved and dispersed pH adjusting agent that is not part of any one of immediately previously recited components (A) through (C); and (E) at least one member selected from the group consisting of surfactants and organic solvents which are not part of the component (A) or (B); said liquid composition having a pH of at least 6.5.