Coating compositions comprising spheroid silica or silicate

摘要

Disclosed herein are architectural coating compositions comprising spheroid shaped silica or silicate. The compositions exhibit a number of improved properties and are useful on a variety of substrates.

主权项

1. An architectural coating composition comprising precipitated silica or silicate particles having an oil absorption value of up to 100 cc/100 g and a mercury intruded volume of from 0.5 ml/g to 3 ml/g; wherein at least 80% of the silica particles are rounded to well rounded; and wherein the silica particles have a sphericity (S80) factor of greater than 0.9 and a Brass Einlehner Abrasion value of at least 1 to less than 8.0 mg lost/100,000 revolutions.