公开(公告)号：US11073232B2

公开(公告)日：2021-07-27

申请号：US15744143

申请日：2016-07-06

申请人： Wavin B.V.

发明人： Martin Rimal ,  David Krbec

IPC分类号： F16L11/00 ,  F16L9/12 ,  B32B1/08 ,  B32B7/12 ,  B32B27/08 ,  B32B27/20 ,  B32B27/32 ,  B32B27/34

摘要： The present invention concerns a multilayered pipe comprising an inner basis layer (1) and an outer layer (2), the inner basis layer (1) and the outer layer (2) comprising polypropylene, and with a reinforcement layer (3, 6) reinforced with mineral fibers and located between the inner basis layer (1) and the outer layer (2), wherein at least one layer of the pipe located between the inner basis layer (1) and the outer layer (2) is a barrier layer (3) comprising polyamide.