	US 11,745,480 B2
	Composite film
Thomas Bachon, Düsseldorf (DE)
Assigned to EWALD DÖRKEN AG, Herdecke (DE)
Appl. No. 17/284,550
Filed by EWALD DÖRKEN AG, Herdecke (DE)
PCT Filed Sep. 25, 2019, PCT No. PCT/EP2019/075844 § 371(c)(1), (2) Date Apr. 12, 2021, PCT Pub. No. WO2020/088853, PCT Pub. Date May 7, 2020.
Claims priority of application No. 10 2018 008 585.7 (DE), filed on Oct. 31, 2018.
Prior Publication US 2021/0316541 A1, Oct. 14, 2021
Int. Cl. B32B 27/12 (2006.01); B32B 5/02 (2006.01); B32B 5/18 (2006.01); B32B 5/24 (2006.01); B32B 7/08 (2019.01); B32B 7/14 (2006.01); B32B 27/08 (2006.01); B32B 27/32 (2006.01); B32B 27/36 (2006.01); B32B 27/40 (2006.01); E04B 1/62 (2006.01); E04D 5/10 (2006.01); E04D 12/00 (2006.01)

CPC B32B 27/12 (2013.01) [B32B 5/022 (2013.01); B32B 5/18 (2013.01); B32B 5/245 (2013.01); B32B 7/08 (2013.01); B32B 7/14 (2013.01); B32B 27/08 (2013.01); B32B 27/32 (2013.01); B32B 27/36 (2013.01); B32B 27/40 (2013.01); E04B 1/625 (2013.01); E04D 5/10 (2013.01); E04D 12/002 (2013.01); B32B 2262/0253 (2013.01); B32B 2262/0276 (2013.01); B32B 2307/718 (2013.01); B32B 2419/00 (2013.01)]

24 Claims

1. A composite, adapted for use in the construction industry and/or adapted for use as a construction film, comprising:

at least one functional layer, at least one outer protective layer facing a weather side in a laid state, and at least one inner protective layer, the functional layer being arranged between the outer protective layer and the inner protective layer,

wherein:

the functional layer is at least a single-layer membrane layer, in that the outer protective layer is a nonwoven layer comprising polyolefin and the inner protective layer is a nonwoven layer comprising polyester, and

the functional layer has a grammage of less than 100 g/m².