Coating for granulated products to improve granule adhesion, staining, and tracking
AssigneeBuilding Materials Investment Corporation
InventorsLouis L. Grube, Michael D. DeSouto, Anthony Ruffine
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Abstract
A building material product and a method of making building material products, having increased resistance to granule rub off and staining. The building material product comprises a substrate having embedded granules and an acrylic latex coating positioned on the granules, where the polymer of the acrylic latex coating has the repeating structural unit [CH2—C(R1)(R2)], where R1 is hydrogen or C1-C8 alkyl; R2 is hydrogen, cyano or —COOR; and R is a linear or branched hydrocarbon containing 1-22 carbon atoms, with the proviso that R1 and R2 are both not hydrogen. The method includes applying this acrylic latex water based composition to a granule embedded substrate.
Claims17
A building product comprising:
- a substrate;
- granules embedded in said substrate;
- and
- an acrylic latex coating said granules, a polymer of said acrylic latex coating includes the repeating structural unit [CH2—C(R1)(COOR2)], where R1 is hydrogen or C1-C8 alkyl;
- R2 is hydrogen, cyano or C1-C8 alkyl;
- wherein said granules are encapsulated in the acrylic latex coating prior to the granules being embedded in said substrate.
Dependencies are inferred from the claim text.