Porous Silicon Oxide Beads for Use As Drying Agents for Waterborne Latex Paint Compositions
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United States of America Patent
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Sep 13, 2018
app pub date -
Mar 10, 2017
filing date -
Mar 10, 2017
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Abstract
A highway marking paint is provided formed from a waterborne latex paint and porous silica beads having a pore volume in the range of 0.3 cc/g to 3.0 cc/g. The silica beads enable the paint to achieve sufficient viscosity to permit the application of a highway marking of at least 40 mil and preferably at least 120 mil. The highway marking paint can also include retroreflective glass beads. Optionally, the highway marking paint further includes an acrylic polymer emulsion. The porous silica in bead form enhances the flowability of the porous silica beads and retroreflective beads.
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