Basf Corporation

Basf Corporation, Inmont Division

Alan L Steinmetz

Thomas G Savino

Clint W Carpenter

Thomas C Balch

Nicholas Caiozzo

Paul Serdiuk

Sergio E Balatin

Shakti L Mukerjee

A coating composition is disclosed comprising:

Polyurethane coating composition derived from long-chain aliphatic polyol

Polyurethane coating composition derived from polyester polyol

Compounds useful for improving the dispersibility of micaceous particulates in aqueous-based coating compositions comprise urethanes or ureas which are the reaction products of silylalkyl or silylaryl isocyanates with alcohols, amines, polyether alcohols or amine-terminated polyethers. The compounds may also be the reaction products of silylalkyl- or silylarylamines with half-blocked diisocyanates which are themselves the reaction products of a diisocyanate with an alcohol, amine, polyether alcohol or amine-terminated polyether. Micaceous particulates which have been surface modified by reaction with these compounds, as well as coating compositions comprising such surface-modified micaceous particulates, and coated substrates are also disclosed.

Surface-modified micaceous particulates having improved dispersibility

The present invention is directed to a process for the preparation of amine modified copolymers as a pigment dispersant for cathodic electrocoating compositions comprising the steps of a) polymerizing

Process for the preparation of an amine modified copolymer as a pigment

This invention, therefore, relates to the field of polyurethane coatings for use in automobile basecoat/clearcoat systems. In particular, this invention relates to water-dispersible polyurethane resins having polyether sidechains which may be utilized in basecoat compositions as principal resins or grind resins. These polyurethane resins may be laterally stabilized or terminally stabilized. The terminally stabilized resins of this invention are preferably employed as principal resins in basecoat compositions.

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Milford, MI, United States of America

Alan L Steinmetz