Patent ID: 7288584

Claim:
A mixing scheme comprising: a plurality of pigmented base paint compositions having defined colors and comprising at least one rheology controlled base paint composition comprising at least one pigment selected from the group consisting of inorganic pigments, di-keto-pyrrolo-pyrrole pigments, organic liquid crystal pigments and carbon black, wherein the at least one rheology controlled base paint composition comprises a thixotropic agent present and in an amount to provide a rheology profile comprising: (1) an initial viscosity V 1 at 20° C. of 65 Pa s or greater when measured at a shear rate of 10 −3 s −1 , (2) a viscosity V 2 of 700 Pa s or less and less than or equal to 70% of V 1 at 20° C. when measured at a shear rate of 10 −3 s −1 immediately after subjecting to a shear rate of at least 15 s −1 ; and (3) a viscosity V 3 of at least 140% of V 2 and at least 55 Pa s within 24 hours at rest after being subjected to a shear rate of at least 15 s −1 , wherein the resulting base paint compositions are resistant to settlement as a result of this rheology profile.