Graphene coatings for roofing materials and related methods
AssigneeBmic LLC
InventorMing-Liang Shiao
Life of this patent
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Abstract
Some embodiments of the present disclosure relate to a roofing material, wherein the roofing material may comprise a plurality of coated roofing granules, wherein each of the plurality of the coated roofing granules may comprise a roofing granule having an outer surface; and a granule coating, wherein the granule coating is disposed on at least a portion of the outer surface of the roofing granule, and wherein the granule coating comprises graphene. Some embodiments of the present disclosure relate to a roofing material, wherein the roofing material may further comprise a reflective base coating, wherein the reflective base coating is positioned between the outer surface of the roofing granule and the granule coating.
Claims20
A roofing shingle comprising:
- a substrate;
- an asphalt filled coating on the substrate;
- and
- a plurality of coated roofing granules disposed on the asphalt filled coating, wherein each of the plurality of coated roofing granules comprises:
- a roofing granule,
- wherein the roofing granule consists of a mineral,
- wherein the mineral is selected from the group consisting of greenstone, nephelene syenite, gravel, slate, gannister, quartz, quartzite, greystone, argillite, coal slag, copper slag, nickel slag, ceramic grog, talc, granite, siliceous sand, andesite, porphyry, marble, syenite, rhyolite, diabase, quartz, slate, basalt, sandstone, marine shell, a material derived from a brick, a material derived from a concrete, a material derived from a porcelain, and any combination thereof;
- and
- a coating,
- wherein the coating is disposed on at least a portion of an outer surface of the roofing granule;
- wherein the coating directly contacts the at least a portion of the outer surface of the roofing granule;
- wherein the coating comprises:
- 0.1% to 9% by weight of a graphene based on a total weight of the coating,
- wherein the graphene is present in the coating such that at least a portion of the graphene is directly exposed to an environment;
- wherein the graphene is present in the coating in an amount such that, when measured according to ASTM E903, a total solar reflectance of the plurality of coated roofing granules is greater than a total solar reflectance of a plurality of control coated roofing granules, wherein the plurality of control coated roofing granules does not comprise graphene;
- at least one binder;
- and
- at least one polymer.
A roofing material comprising:
- a substrate;
- an asphalt filled coating on the substrate;
- and
- a plurality of coated roofing granules disposed on the asphalt filled coating, wherein each of the plurality of coated roofing granules comprises:
- a roofing granule,
- wherein the roofing granule consists of a mineral,
- wherein the mineral is selected from the group consisting of greenstone, nephelene syenite, gravel, slate, gannister, quartz, quartzite, greystone, argillite, coal slag, copper slag, nickel slag, ceramic grog, talc, granite, siliceous sand, andesite, porphyry, marble, syenite, rhyolite, diabase, quartz, slate, basalt, sandstone, marine shell, a material derived from a brick, a material derived from a concrete, a material derived from a porcelain, and any combination thereof;
- and
- a coating,
- wherein the coating is disposed on at least a portion of an outer surface of the roofing granule;
- wherein the coating directly contacts the at least a portion of the outer surface of the roofing granule;
- wherein the coating comprises a graphene, at least one binder, and at least one polymer;
- wherein the graphene is present in the coating such that at least a portion of the graphene is directly exposed to an environment;
- wherein, when measured according to ASTM E903, the graphene is present in the coating in an amount sufficient to increase a total solar reflectance of the plurality of coated roofing granules by at least 40% relative to a plurality of control roofing granules, wherein the plurality of control roofing granules does not comprise graphene.
Dependencies are inferred from the claim text.