US 11,746,478 B2
Methods of forming an asphalt shingle waste powder from asphalt shingle waste
Dale Kelley, Flower Mound, TX (US); James Svec, Kearney, NJ (US); Michael T. Ferraro, Savannah, GA (US); Kirby Erickson, Waxahachie, TX (US); Paul Richardson, Euless, TX (US); and Kris Edelsward, Lockport, NY (US)
Assigned to BMIC LLC, Dallas, TX (US)
Filed by BMIC LLC, Dallas, TX (US)
Filed on Nov. 18, 2020, as Appl. No. 16/951,756.
Application 16/951,756 is a continuation of application No. 16/883,503, filed on May 26, 2020, granted, now 10,858,790.
Application 16/883,503 is a continuation of application No. 16/789,219, filed on Feb. 12, 2020, granted, now 10,683,620, issued on Jun. 16, 2020.
Claims priority of provisional application 62/904,476, filed on Sep. 23, 2019.
Claims priority of provisional application 62/912,411, filed on Oct. 8, 2019.
Prior Publication US 2021/0087757 A1, Mar. 25, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. E01C 19/00 (2006.01); E01C 19/05 (2006.01); E01C 19/10 (2006.01); B02C 19/00 (2006.01); C08L 95/00 (2006.01); B02C 23/08 (2006.01)
CPC E01C 19/05 (2013.01) [B02C 19/0056 (2013.01); B02C 23/08 (2013.01); C08L 95/00 (2013.01); E01C 19/1004 (2013.01); C08L 2555/34 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A method comprising:
obtaining asphalt shingle waste (ASW);
wherein the ASW comprises:
asphalt,
limestone powder,
granules, and
impurities; and
performing sufficient grinding steps and screening steps on the ASW to result in ASW powder;
wherein the ASW powder has an average particle size of 2 microns to 425 microns, and wherein the ASW powder comprises:
5 wt % to 40 wt % asphalt based on a total weight of the ASW powder, and
60 wt % to 95 wt % limestone powder, granules, and impurities based on the total weight of the ASW powder.