US 12,247,399 B2
Fire-resistant roof system and membrane composite
Wensheng Zhou, Carmel, IN (US); Michael J. Hubbard, Goshen, IN (US); Allen Sopko, Zionsville, IN (US); and Joseph Carr, Indianapolis, IN (US)
Assigned to Holcim Technology Ltd, Zug (CH)
Filed by Holcim Technology Ltd, Zug (CH)
Filed on Oct. 19, 2021, as Appl. No. 17/505,030.
Application 17/505,030 is a continuation of application No. 16/665,765, filed on Oct. 28, 2019, granted, now 11,168,479, issued on Nov. 9, 2021.
Application 16/665,765 is a continuation of application No. 15/354,009, filed on Nov. 17, 2016, abandoned.
Application 15/354,009 is a continuation of application No. 14/162,273, filed on Jan. 23, 2014, granted, now 9,523,203, issued on Dec. 20, 2016.
Application 14/162,273 is a continuation in part of application No. 13/798,413, filed on Mar. 13, 2013, abandoned.
Claims priority of provisional application 61/856,258, filed on Jul. 19, 2013.
Claims priority of provisional application 61/755,666, filed on Jan. 23, 2013.
Prior Publication US 2022/0034092 A1, Feb. 3, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. E04D 5/10 (2006.01); B32B 27/12 (2006.01); B32B 37/04 (2006.01); D06N 5/00 (2006.01); E04B 1/94 (2006.01); E04D 5/06 (2006.01); E04D 5/14 (2006.01); E04D 11/02 (2006.01); E04D 13/00 (2006.01)
CPC E04D 5/10 (2013.01) [B32B 27/12 (2013.01); B32B 37/04 (2013.01); D06N 5/00 (2013.01); E04B 1/941 (2013.01); E04D 5/06 (2013.01); E04D 5/149 (2013.01); E04D 11/02 (2013.01); E04D 13/00 (2013.01); B32B 2307/3065 (2013.01); D06N 2209/067 (2013.01); Y10T 428/23921 (2015.04); Y10T 428/249921 (2015.04)] 9 Claims
OG exemplary drawing
 
1. A membrane composite comprising:
(a) a thermoplastic membrane having first and second planar surfaces, where said thermoplastic membrane includes a first thermoplastic layer and a second thermoplastic layer with a reinforcing scrim located between said first thermoplastic layer and said second thermoplastic layer; and
(b) a fabric secured through heat welding to at least a portion of the second planar surface of the membrane, where the fabric includes first and second surfaces, where the first planar surface of the fabric is attached to the second planar surface of the membrane, where the second planar surface of the fabric has a coating composition disposed thereon, where the coating composition includes expandable graphite dispersed within a binder.