Tubular liner having an inner tubular film for the lining of pipelines and method for the continuous manufacture of the tubular liner

摘要

A tubular liner for pipelines includes an inner tubular film and a fiber material layer located on the film and impregnated with a reactive resin curable under UV light. The film contains a styrene-proof and thermally weldable carrier material having a laminated non-woven layer on its outer side facing the fiber material. The carrier material includes an overlapping region along the film. Edge sections of the carrier material are thermally welded together in the overlapping region. The non-woven layer on the outer side of the radially inner lower edge section in the overlapping region is thermally welded to the carrier material on the lower side of the radially outer upper edge section, and the radially outer upper edge section in the overlapping region has a structure on its outer side enabling a durable adhesion of reactive resin. A method for manufacturing the tubular liner is provided.

主权项

1. A tubular liner for lining pipelines, the tubular liner comprising:
an inner tubular film containing a styrene vapor emission-proof and thermally weldable carrier material; said carrier material having an outer side, an overlapping region extending along said inner tubular film and edge sections being thermally welded to one another in said overlapping region; said edge sections including a radially inner lower edge section having an outer side and a radially outer upper edge section having a lower side and an outer side; a layer of fiber material being impregnated with a reactive resin being curable under UV light; a laminated non-woven layer disposed on and laminated to said outer side of said carrier material facing said fiber material; said non-woven layer disposed on said outer side of said radially inner lower edge section in said overlapping region and thermally welded to said carrier material on said lower side of said radially outer upper edge section; and said outer side of said radially outer upper edge section having a structure in said overlapping region increasing a durability of adhesion of the reactive resin.