Building materials comprising agglomerated particles
AssigneeSpecialty Granules Investments LLC
InventorPeter Wilson
Life of this patent
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Abstract
Roofing granules comprising agglomerated inorganic material, and building materials, such as shingles, that include such roofing granules. By fabricating roofing granules from agglomerating inorganic material, in combination with a binder composition having a wetting agent, it is possible to increase the yield of the fabricated roofing granules and tailor the particle size distribution so as to provide optimal shingle surface coverage, thus reducing shingle weight and usage of raw materials. Additionally, the use of agglomeration permits the utilization of by-products from conventional granule production processes.
Claims15
A method comprising:
- (a) obtaining (i) at least one of a rock, a mineral, or a combination thereof, and (ii) a binder composition that includes a wetting agent, wherein the wetting agent comprises from 0.05 wt % to 0.3 wt % with respect to a total weight of the binder composition;
- (b) mixing (i) the at least one of a rock, a mineral, or a combination thereof and (ii) the binder composition to produce agglomerated particles;
- and
- (c) applying the agglomerated particles to a sheet to form a roofing product.
Dependencies are inferred from the claim text.