Silica-free surface abrasion compositions and their uses

Abstract

This invention provides for provides for abrasive compositions and methods of use of these compositions for the preparation of surfaces for the application of various coatings such as paints, lacquers and varnishes. The abrasive compositions of this invention provide rapid cleaning and dulling of the underlying surface rendering it suitable for the application of paints or other finishes.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application claims priority to and benefit of U.S. Ser. No. 60 / 609,701, filed on Sep. 13, 2004, and U.S. Ser. No. 60 / 527,090, filed on Dec. 3, 2003, both of which are incorporated herein by reference in their entirety for all purposes.STATEMENT AS TO RIGHTS TO INVENTIONS MADE UNDER FEDERALLY SPONSORED RESEARCH AND DEVELOPMENT [0002] [Not Applicable]FIELD OF THE INVENTION [0003] The present invention relates to abrasive compositions and their use in the preparation of surfaces for the application of paint. BACKGROUND OF THE INVENTION [0004] The proper application of various finishing materials, in particular high-gloss paint finishes, typically requires cleaning and abrasion of the underlying surface in order to provide a surface that forms a strong adhesive bond with the newly applied finishing material. Cleaning and abrasion of the underlying surface is particularly important to the successful finishing of surfaces that are dirty,...

AI Technical Summary

Benefits of technology

[0011] The present invention provides for abrasive compositions and methods of use of these compositions for the preparation of surfaces for the application of various coatings or finishes such as paints, lacquers and varnishes. The abrasive compositions of the present invention provide rapid cleaning and dulling of the underlying surface with little effort, increase the useful life of abrasive devices such as scuff pads, are easily removed from the abraded surface with only a water rinse, and provide no significant environmental impact.

Problems solved by technology

In addition, vehicle surfaces are often soiled with dirt and / or grease, either from the manufacturing operation or subsequent use, and thus provide surfaces that must be cleaned prior to application of a subsequent coating.

These approaches are typically expensive, time-consuming, and laborious and usually require subsequent cleaning and degreasing.

While the use of abrasive compositions for surface cleaning and abrasion is generally known, most abrasive compositions do not provide a surface well suited to the subsequent application of finishes.

Abrasive cleansers (scouring powders) and rust removal compounds, however, have proven unsatisfactory as surface preparatives.

Scouring powders often fail to provide adequate or consistent (uniform) dulling of the underlying surface.

In addition, scouring powders typically include a soap that leaves a residual film which has proven difficult to remove and which interferes with the adhesion of subsequently applied finishes.

A similar problem has been observed with various abrasive pastes.

Rust removal compositions typically include an acid degreaser use of which entails some health risk and requires protective equipment.

The acid component of rust removal compositions may also attack chrome trim which may be present on the surface.

Finally, paste-like silicate abrasives which are more easily removed from the underlying surfaces, tend to dry out to powders which become airborne and provide a significant airborne health hazard.