CPC C09J 7/29 (2018.01) [B32B 5/024 (2013.01); B32B 27/12 (2013.01); B32B 27/18 (2013.01); B32B 27/32 (2013.01); E04D 5/10 (2013.01); E04D 5/148 (2013.01); B32B 2250/03 (2013.01); B32B 2262/0276 (2013.01); B32B 2270/00 (2013.01); B32B 2419/06 (2013.01); C09J 2423/106 (2013.01); C09J 2453/006 (2013.01)] | 20 Claims |
1. A roofing membrane comprising:
a cap layer,
wherein the cap layer comprises:
a first non-styrenic polypropylene copolymer;
a first polypropylene impact copolymer; and
a first olefin block copolymer,
wherein the cap layer comprises no greater than 10% by weight of the first olefin block copolymer based on a total weight of the cap layer;
a core layer,
wherein the core layer comprises:
a second non-styrenic polypropylene copolymer;
a second polypropylene impact copolymer; and
a second olefin block copolymer; and
a scrim between the cap layer and the core layer.
|