Rohm and Haas Patents

October 14, 2005

Rohm and Haas Patents
Method of Improving
Viscosity Stability
Patent No. U.S. 6,887,928 B2
Rohm and Haas Company has been granted a patent for a method of improving the viscosity stability of a coating composition by adding a colorant. The method is comprised of providing a base paint and adding to the base paint, a tinting composition comprising at least one colorant composition and, from 0.05%-15% dry weight of at least one macromolecular compound having a hydrophobic cavity, based on the weight of at least one colorant composition.