US 12,280,568 B2
Pre-applied membranes
Jagan Mohanraj, Derbyshire (GB); and Cameron Yates, Derbyshire (GB)
Assigned to BRITISH POLYTHENE LIMITED, Northamptonshire (GB)
Filed by BRITISH POLYTHENE LIMITED, Northamptonshire (GB)
Filed on May 25, 2023, as Appl. No. 18/202,200.
Application 18/202,200 is a continuation of application No. 17/291,529, granted, now 11,691,396, previously published as PCT/GB2019/053129, filed on Nov. 5, 2019.
Claims priority of application No. 1818077 (GB), filed on Nov. 6, 2018.
Prior Publication US 2023/0294385 A1, Sep. 21, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. B32B 25/08 (2006.01); B32B 7/06 (2019.01); B32B 25/18 (2006.01); B32B 27/18 (2006.01); B32B 27/30 (2006.01); B32B 27/32 (2006.01); C08K 3/26 (2006.01); C08K 3/34 (2006.01)
CPC B32B 25/08 (2013.01) [B32B 7/06 (2013.01); B32B 25/18 (2013.01); B32B 27/18 (2013.01); B32B 27/306 (2013.01); B32B 27/32 (2013.01); C08K 3/26 (2013.01); C08K 3/346 (2013.01); B32B 2250/24 (2013.01); B32B 2270/00 (2013.01); B32B 2272/00 (2013.01); B32B 2307/716 (2013.01); B32B 2307/7242 (2013.01); B32B 2307/7265 (2013.01); B32B 2307/732 (2013.01); C08K 2003/265 (2013.01)] 30 Claims
OG exemplary drawing
 
1. A laminated pre-applied membrane comprising a carrier layer and a rubber or rubber-based layer; wherein the carrier layer comprises a polyethylene layer; and wherein the rubber or rubber-based layer comprises: a blend of virgin rubber and reclaimed rubber, and at least one mineral additive selected from the group consisting of kaolin, kaolinite and metakaolin.