| abstract |
The present invention in multiple embodiments is directed to amphipathic pigment extenders or fillers comprising silane treated anhydrous kaolin or other minerals that are similarly treated with silane surface modifiers having a cured carbon to nitrogen ratio range of from 9 to 18, and coatings containing the amphipathic pigment extenders or fillers, as well as methods of forming such materials. These surface modified materials are useful in a variety of applications including as pigment extenders or fillers in paints and other coatings with good wetting characteristics, opacity, resistance to staining, resistance to abrasive scrubbing, ability to "self-prime" over porous surfaces, and overall water resistance as well as low to no nuisance dust. |