US 11,746,192 B2
Silicone-coated mineral wool insulation materials and methods for making and using them
Pawan Saxena, Malvern, PA (US); Kevin J. Gallagher, Plymouth Meeting, PA (US); John J. Bozek, Harleysville, PA (US); and Kathleen H. Saylor, Malvern, PA (US)
Assigned to CertainTeed LLC, Malvern, PA (US)
Filed by CertainTeed LLC, Malvern, PA (US)
Filed on Apr. 16, 2019, as Appl. No. 16/386,086.
Claims priority of provisional application 62/658,547, filed on Apr. 16, 2018.
Prior Publication US 2019/0315935 A1, Oct. 17, 2019
Int. Cl. C08G 77/26 (2006.01); E04B 1/78 (2006.01); E04B 1/76 (2006.01); C09D 183/04 (2006.01); C09D 183/08 (2006.01); C03C 25/40 (2006.01); B05D 1/02 (2006.01); B05D 7/24 (2006.01); D06M 15/643 (2006.01); C08G 77/00 (2006.01)
CPC C08G 77/26 (2013.01) [B05D 1/02 (2013.01); B05D 7/24 (2013.01); C03C 25/40 (2013.01); C09D 183/04 (2013.01); C09D 183/08 (2013.01); D06M 15/643 (2013.01); E04B 1/7604 (2013.01); E04B 1/78 (2013.01); B05D 2203/35 (2013.01); B05D 2518/12 (2013.01); C08G 77/80 (2013.01); C08J 2383/08 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method for making an unbound loose-fill silicone-coated mineral wool, the method comprising:
providing a loose-fill mineral wool comprising a collection of loose mineral wool fibers;
applying to the loose-fill mineral wool a solvent-borne coating composition comprising a silicone, the silicone of the coating composition having a number-average molecular weight in the range of 40 kDa to 83 kDa; and
allowing the solvent to evaporate to provide silicone-coated mineral wool,
wherein the rate of application of the coating composition to the mineral wool is in the range of 0.1-2 mg silicone per gram mineral wool,
wherein the mineral wool is at a temperature in range of 200-500° C. when it is coated with the solvent-borne coating composition.