Lubricating lacquer component, lubricating lacquer and methods for coating elastomers such as windscreen wiper blades

Abstract

A lubricant varnish component and a lubricant varnish, in particular for coating elastomer profiles, are proposed. The lubricant varnish component contains a polyurethane, a siloxane as well as a polyamide powder, a polyethylene powder or a solution of a polyamide. The lubricant varnish may additionally contain a curing agent, in particular an isocyanate-based curing agent. In addition, a first method for coating elastomers is proposed, the proposed lubricant varnish first being applied in the form of a coating to an elastomer profile, and this coating then being dried and/or thermally crosslinked. Furthermore, an alternative, second method is proposed, the proposed lubricant varnish, having or not having polyamide or polyethylene, first being applied in the form of a first coat to the elastomer profile, and an alcoholic or aqueous solution of a polyamide in the form of a second coat or a polyamide powder or a polyethylene powder then being applied to the first coat. The proposed lubricant varnish is suitable in particular for the production of coated windshield wiper blades having a reduced coefficient of dry friction.

Dependencies are inferred from the claim text.