公开(公告)号：US20170320303A1

公开(公告)日：2017-11-09

申请号：US15656072

申请日：2017-07-21

Applicant: Solmax International Inc.

Inventor： Ata Taghizadeh

IPC: B32B27/18 ,  E02D31/00 ,  B32B27/08 ,  B32B27/32 ,  C08L23/06 ,  B29C47/00 ,  B29L31/00 ,  B29K509/02 ,  B29K507/04 ,  B29C47/06

CPC classification number: B32B27/18 ,  B29C48/022 ,  B29C48/08 ,  B29C48/21 ,  B29K2023/06 ,  B29K2507/04 ,  B29K2509/02 ,  B29K2995/0058 ,  B29L2007/00 ,  B29L2009/00 ,  B29L2031/70 ,  B29L2031/755 ,  B32B27/08 ,  B32B27/20 ,  B32B27/32 ,  B32B27/327 ,  B32B2250/03 ,  B32B2250/242 ,  B32B2250/246 ,  B32B2264/102 ,  B32B2264/108 ,  B32B2270/00 ,  B32B2307/306 ,  B32B2307/308 ,  B32B2307/4026 ,  B32B2307/416 ,  B32B2307/54 ,  B32B2307/71 ,  B32B2307/712 ,  B32B2307/714 ,  B32B2307/7242 ,  B32B2307/7265 ,  B32B2410/00 ,  C08L23/06 ,  C08L2201/08 ,  C08L2205/025 ,  C08L2310/00 ,  E02D31/004

Abstract: Multilayer polyethylene (PE) geomembrane liners for unconventional thermal conditions and methods of making them are disclosed. The liners have N co-extruded stacked layers, each layer being made from a PE masterbatch composition comprising a given amount of PE resin and additives, and of a PE metallocene based resin free of acid neutralizer compounds. Also disclosed are customized multilayer PE geomembrane liners of N co-extruded stacked layers, each layer being made from a PE masterbatch comprising a specific additive providing specific behaviour property to the layer; wherein at least two of the N layers comprise a different specific additive in order to provide a geomembrane liner having at least two layers with different behaviour property. The liners have a water-bath aging performance for about 6 months immersion at about 80° C. per ASTM D5322—modified for water, such that about 80% of high pressure OIT value retained per ASTM D5885.