US 11,884,835 B2
Hybrid coating for roof applications
ChangQing Shen, Centennial, CO (US); Joel Hazy, Brighton, CO (US); Julian Metz, Denver, CO (US); and Lance Wang, Parker, CO (US)
Assigned to Johns Manville, Denver, CO (US)
Filed by JOHNS MANVILLE, Denver, CO (US)
Filed on Aug. 2, 2022, as Appl. No. 17/879,080.
Application 17/879,080 is a division of application No. 16/785,791, filed on Feb. 10, 2020, granted, now 11,466,174.
Application 16/785,791 is a division of application No. 15/691,553, filed on Aug. 30, 2017, granted, now 10,597,555, issued on Mar. 24, 2020.
Prior Publication US 2022/0372325 A1, Nov. 24, 2022
Int. Cl. C09D 133/16 (2006.01); E04D 11/02 (2006.01); E04D 5/12 (2006.01); E04D 5/02 (2006.01); C04B 26/26 (2006.01); C04B 14/42 (2006.01); C04B 16/04 (2006.01); C04B 41/00 (2006.01); C04B 41/50 (2006.01); C04B 41/48 (2006.01); C04B 41/49 (2006.01); C04B 20/10 (2006.01); E04D 5/10 (2006.01); E04D 7/00 (2006.01); C08K 9/04 (2006.01); C04B 111/00 (2006.01); C04B 111/27 (2006.01)
CPC C09D 133/16 (2013.01) [C04B 14/42 (2013.01); C04B 16/04 (2013.01); C04B 20/1033 (2013.01); C04B 20/1051 (2013.01); C04B 26/26 (2013.01); C04B 41/009 (2013.01); C04B 41/4842 (2013.01); C04B 41/4922 (2013.01); C04B 41/5024 (2013.01); C08K 9/04 (2013.01); E04D 5/02 (2013.01); E04D 5/10 (2013.01); E04D 5/12 (2013.01); E04D 7/005 (2013.01); E04D 11/02 (2013.01); C04B 2111/00586 (2013.01); C04B 2111/00612 (2013.01); C04B 2111/27 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A coated granule for roofing systems, the coated granule comprising:
an aluminum silicate granule; and
a coating disposed on the aluminum silicate granule, the coating comprising:
a copolymer, and
a siloxane-based or a silane-based compound;
wherein:
the siloxane-based or silane-based compound is 60 wt. % or more of the coating and a mass ratio of the siloxane-based or silane-based compound to the copolymer is from 2:1 to 3:1,
the copolymer is a cationic fluorinated (meth)acrylic copolymer,
the aluminum silicate granule has a particle size in a range from 0.2 mm to 2.4 mm, and
the aluminum silicate granule has a 65% or greater reflectivity.