Plastic pipe for renovating of sewage conduits

摘要

The plastic pipe (1) has adhesive sections at plastic pipe inner sides (12, 14), where the adhesive sections are chemically different from radially adjacent sections of the plastic pipe. The plastic pipe is deformable in a cross section-reducing manner to be introduced into a sewer pipe (2) that is to be sanitized. The plastic pipe is deformable back to the original shape to lay against the sewer pipe from the inside. The plastic pipe is chemically modified at the pipe inner side (12) by application of a fluorine gas i.e. fluorine oxygen mixture. The plastic pipe has an inner layer (13) chemically modified by application of malic acid anhydride or carbonic acid esters such as ethylene vinyl acetate.