Replacement of thermally produced calcined clay with chemically structured pigments and methods for the same, Final technical report, Quarterly report, February 3, 1996-May 1, 1996

The testing of control formulas was repeated due to instability of the TiO2 dispersion being used. Calcined clay controls were compared to the performance of layered pigments of the instant invention in coatings on brown natural kraft paperboard from Mead Corporation