Multi-layer assembly for fluid and vapor handling and containment systems

摘要

A multi-layer assembly for fluid and vapor handling and containment systems. The multi-layer assembly comprises an extrudable inner layer of a polymeric material, a first layer of multiphase polymer surrounding the inner layer, a permeation resistance layer of polymeric material surrounding the first layer of multiphase polymer and a second layer of multiphase polymer surrounding the permeation resistance layer.