Patent ID: 8148460

Claim:
A liquid rheological aid for use in an automotive OEM high solids clearcoat, the rheological aid comprising (A) at least one urea derivative made by the process of reacting (a1) at least one compound having at least one isocyanate group with (a2) at least one co-reactant selected from the group consisting of primary monoamines, primary polyamines, secondary monoamines, secondary polyamines, water, and a combination thereof, in the presence of (a3) at least one organobismuth catalyst; and B) at least one additive, wherein the selection is made such as to result in a liquid reaction medium in which the organobismuth catalyst is soluble; wherein the rheological aid comprises a bismuth compound; and wherein the rheological aid comprises the urea derivative from the reaction of (a1) and (a2) in an amount, based on the rheological aid, of more than 10% by weight and wherein the liquid rheological aid is fluid and capable of use as a thixotropic agent in making an automotive OEM high solids clearcoat having high storage stability, wherein the clearcoat is capable of being applied by spray application.