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Patents

Rohm and Haas Patents

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By: KERRY PIANOFORTE

Editor, Coatings World, Coatings World

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.

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