	US 11,987,524 B2
	Building materials comprising agglomerated particles
Justin P. Dunlap, Hagerstown, MD (US); John Allen Horton, Frederick, MD (US); Olan Leitch, Bakersfield, CA (US); and Daniel E. Rardon, Greencastle, PA (US)
Assigned to Specialty Granules Investments LLC, Parsippany, NJ (US)
Filed by Specialty Granules Investments LLC, Parsippany, NJ (US)
Filed on May 4, 2023, as Appl. No. 18/311,918.
Application 18/311,918 is a continuation of application No. 17/232,171, filed on Apr. 16, 2021, granted, now 11,680,016.
Application 17/232,171 is a continuation of application No. 16/829,378, filed on Mar. 25, 2020, granted, now 11,008,254, issued on May 18, 2021.
Claims priority of provisional application 62/884,342, filed on Aug. 8, 2019.
Prior Publication US 2023/0271883 A1, Aug. 31, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. C04B 18/02 (2006.01); C04B 18/06 (2006.01); C04B 111/00 (2006.01); E04D 1/00 (2006.01); E04D 1/22 (2006.01)

CPC C04B 18/021 (2013.01) [C04B 18/064 (2013.01); E04D 1/22 (2013.01); C04B 2111/00586 (2013.01); E04D 2001/005 (2013.01)]

15 Claims

1. A method comprising:

obtaining an agglomerated particle, the agglomerated particle comprising (a) a plurality of fragments of at least one of a rock, a mineral, or a combination thereof and (b) a binder, agglomerated together to form the agglomerated particle, wherein the plurality of fragments of the at least one of a rock, a mineral, or a combination thereof comprises fragments having a particle size passing US Mesh 100 but retained by US Mesh 270, wherein the agglomerated particle is an unsintered agglomerated particle, wherein the at least one of a rock, a mineral, or a combination thereof comprises at least one of basalt, metabasalt, andesite, rhyolite, or a combination thereof, and wherein the binder is present in the agglomerated particle in an amount of not more than 8 wt %; and

applying the agglomerated particle to a sheet to form a roofing product.