Iron-oxide-containing one or two-component polyurethane paint for coating elastomers, its production and use

US6253505A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Rainer Wefringhaus · Hilden, DE
• Richard Hemel · Monheim, DE

Key dates

• Filing date: Dec 2, 1997
• Grant date: Jul 3, 2001
• Expiry date: Dec 2, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J2475/00
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

The invention relates to one- or two-component polyurethane lacquers for coating elastomers containing polyurethane prepolymers with an average of two or more isocyanate groups per molecule which have been prepared by mixing alcohols having a functionality of two or higher with an excess of isocyanate compounds having a functionality of two or higher and solvents, characterized in that a compound containing iron oxide is added in an extremely large quantity to improve surface slip, and to the production and use of such one- or two-component polyurethane lacquers.