ARTICLE COMPRISING AN ADHESION PROMOTOR COATING

摘要

It is desired to find a new class of adhesion promoters to adhere the granules to the asphalt. Generally, the application is directed to an article comprising a substrate and a coating on the substrate, wherein the coating comprises a polyolefin. The substrate may be a roofing granule. In certain embodiments, the polyolefin is a chemically modified polyolefin. In some embodiments, the coating comprises a photocatalytic material.

主权项

1. An coated roofing granule, comprising
a porous or non-porous weather-resistant rock or mineral material, in natural form or optionally colored by a ceramic coating; and a continuous or discontinuous adhesion promoter coating comprising an oil and a chemically modified or functionalized polyolefin which is soluble in the oil.