US 12,291,869 B2
Polymer modified asphalt compositions and related methods
Ramil Marcelo L. Mercado, Waxahachie, TX (US); Jarod L. Krajca, Ennis, TX (US); Lisa Brzezinski, Red Oak, TX (US); Xiangnan Ye, Cypress, TX (US); and Denis M. Tibah, Waxahachie, TX (US)
Assigned to BMIC LLC, Dallas, TX (US)
Filed by BMIC LLC, Dallas, TX (US)
Filed on Feb. 22, 2024, as Appl. No. 18/584,797.
Claims priority of provisional application 63/486,395, filed on Feb. 22, 2023.
Prior Publication US 2024/0279930 A1, Aug. 22, 2024
Int. Cl. E04D 1/22 (2006.01); C08L 95/00 (2006.01); E04D 1/00 (2006.01)
CPC E04D 1/22 (2013.01) [C08L 95/00 (2013.01); C08L 2205/03 (2013.01); E04D 2001/005 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A roofing shingle comprising:
a substrate; and
a coating on the substrate,
wherein the coating comprises:
10% to 90% by weight of a polymer-modified asphalt composition based on a total weight of the coating,
wherein the polymer-modified asphalt composition comprises:
at least 84% by weight of an asphalt based on a total weight of the polymer-modified asphalt composition;
1% to 15% by weight of a polyolefin based on the total weight of the polymer-modified asphalt composition; and
1% to 15% by weight of an ethylene vinyl acetate copolymer based on the total weight of the polymer-modified asphalt composition,
 wherein the ethylene vinyl acetate copolymer has a melt flow index of at least 30 g/10 min as measured according to ISO 1133; and
10% to 90% by weight of at least one filler based on the total weight of the coating; and
a plurality of granules on the coating.