	US 11,684,115 B2
	Roofing membranes, compositions, and methods of making the same
Krishnamachari Gopalan, Troy, MI (US); Robert J. Lenhart, Fort Wayne, IN (US); Gending Ji, Waterloo (CA); and Roland Herd-Smith, Brignancourt (FR)
Assigned to COOPER-STANDARD AUTOMOTIVE INC., Novi, MI (US)
Filed by Cooper-Standard Automotive Inc., Novi, MI (US)
Filed on Sep. 27, 2018, as Appl. No. 16/144,719.
Application 16/144,719 is a continuation of application No. 15/836,417, filed on Dec. 8, 2017, abandoned.
Claims priority of provisional application 62/497,959, filed on Dec. 10, 2016.
Claims priority of provisional application 62/497,954, filed on Dec. 10, 2016.
Prior Publication US 2019/0045881 A1, Feb. 14, 2019
Int. Cl. A43B 13/04 (2006.01); C08L 23/06 (2006.01); C08L 23/12 (2006.01); C08L 23/14 (2006.01); C08J 9/00 (2006.01); C08J 3/24 (2006.01); C08F 255/02 (2006.01); C08K 5/00 (2006.01); A43B 13/18 (2006.01); B29D 35/12 (2010.01); B32B 27/12 (2006.01); B32B 27/26 (2006.01); C08F 8/00 (2006.01); C08F 8/12 (2006.01); C08L 43/04 (2006.01); C08L 51/06 (2006.01); C08L 53/00 (2006.01); C08J 9/06 (2006.01); C08J 9/32 (2006.01); C08J 9/12 (2006.01); C08F 230/08 (2006.01); B32B 5/02 (2006.01); B32B 27/32 (2006.01); B32B 37/15 (2006.01); C08J 5/18 (2006.01); E04D 5/06 (2006.01); E04D 5/10 (2006.01); C08F 210/02 (2006.01); C08F 210/06 (2006.01); C08K 5/5419 (2006.01); C08L 23/08 (2006.01); C08L 101/00 (2006.01); C08K 3/22 (2006.01); C08L 23/16 (2006.01); C08L 23/20 (2006.01); C09K 3/10 (2006.01); C08G 77/442 (2006.01); D06N 5/00 (2006.01)

CPC A43B 13/04 (2013.01) [A43B 13/187 (2013.01); B29D 35/122 (2013.01); B32B 5/028 (2013.01); B32B 27/12 (2013.01); B32B 27/26 (2013.01); B32B 27/32 (2013.01); B32B 37/15 (2013.01); C08F 8/00 (2013.01); C08F 8/12 (2013.01); C08F 210/02 (2013.01); C08F 210/06 (2013.01); C08F 230/085 (2020.02); C08F 255/02 (2013.01); C08G 77/442 (2013.01); C08J 3/24 (2013.01); C08J 3/246 (2013.01); C08J 5/18 (2013.01); C08J 9/0061 (2013.01); C08J 9/06 (2013.01); C08J 9/122 (2013.01); C08J 9/32 (2013.01); C08K 3/22 (2013.01); C08K 5/00 (2013.01); C08K 5/0025 (2013.01); C08K 5/5419 (2013.01); C08L 23/06 (2013.01); C08L 23/08 (2013.01); C08L 23/0815 (2013.01); C08L 23/12 (2013.01); C08L 23/14 (2013.01); C08L 23/16 (2013.01); C08L 23/20 (2013.01); C08L 43/04 (2013.01); C08L 51/06 (2013.01); C08L 53/00 (2013.01); C08L 101/00 (2013.01); C09K 3/1006 (2013.01); D06N 5/00 (2013.01); E04D 5/06 (2013.01); E04D 5/10 (2013.01); B32B 2274/00 (2013.01); B32B 2305/72 (2013.01); B32B 2307/3065 (2013.01); B32B 2307/72 (2013.01); B32B 2419/06 (2013.01); C08F 2500/08 (2013.01); C08F 2500/21 (2013.01); C08F 2800/20 (2013.01); C08F 2810/20 (2013.01); C08J 2201/026 (2013.01); C08J 2201/03 (2013.01); C08J 2203/04 (2013.01); C08J 2203/06 (2013.01); C08J 2203/08 (2013.01); C08J 2205/052 (2013.01); C08J 2207/00 (2013.01); C08J 2300/26 (2013.01); C08J 2323/08 (2013.01); C08J 2323/12 (2013.01); C08J 2323/16 (2013.01); C08J 2383/10 (2013.01); C08J 2423/06 (2013.01); C08J 2423/08 (2013.01); C08J 2423/12 (2013.01); C08J 2423/14 (2013.01); C08J 2423/16 (2013.01); C08L 2205/02 (2013.01); C08L 2312/08 (2013.01); C09K 2200/0617 (2013.01)]

9 Claims

1. A roofing membrane comprising:

a top layer comprising a flame retardant and a first silane-crosslinked polyolefin elastomer having a density less than 1.45 g/cm³;

an optional scrim layer; and

a bottom layer comprising a flame retardant and a second silane-crosslinked polyolefin elastomer having a density less than 1.45 g/cm³;

wherein the gel content of the roofing membrane is greater than about 60%; and

wherein at least one of the first silane-crosslinked polyolefin elastomer or the second silane-polyolefin elastomer comprises a polyolefin selected from a propylene/C₃-C₂₀α-olefin copolymer or a blend of propylene/α-olefin copolymer with an ethylene/α-olefin copolymer wherein both the propylene/α-olefin copolymer and the ethylene/α-olefin copolymer of the blend are silane-grafted,

wherein the first and second silane-crosslinked polyolefin elastomers have a glass transition temperature of from about −75° C. to about −25° C.