Coated solar reflective granules and methods of manufacturing the same
AssigneeU.S. Silica Company
InventorsRhonda Jenree, Dale Addison Grove
Life of this patent
Estimating the term…
Abstract
A reflective particulate material comprises a particulate substrate, and a coating on the particulate substrate. The coated reflective particulate material may have a relative error of an amount of the coating on the particulate substrate of about 5% to about 15%, and/or a dust index of about 5 or lower, and/or a staining loss of about 8% to about 11%. A method of manufacturing the reflective particulate material comprises mixing the particulate substrate with a liquid coating composition to form a wet particulate mixture, passing the wet particulate mixture through at least one heat zone to remove water and/or moisture, and curing the coating material in the coating composition.
Claims18
A reflective particulate material, comprising:
- a particulate substrate comprising particles;
- and
- a coating on the particles of the particulate substrate, the reflective particulate material having:
- a relative error of an amount of the coating on the particles particulate substrate of from about 5% to about 15%;
- and a standard deviation of the amount of coating on the particles particulate substrate of from about 0.05% to about 0.10%;
- and
- a dust index of less than 2;
- and
- a staining loss when applied to an asphalt substrate of less than 10%.
Dependencies are inferred from the claim text.