Uponor Innovation Ab

Nk Cables Oy

Jyri J{umlaut Over (a)}rvenkyl{umlaut Over (a)}

Kari Kirjavainen

Markku Heino

Vesa Tuunanen

Markku T Suvanto

Jussi Ravela

The invention relates to a co-extruded multilayer plastic pipe comprising an inner pipe and an outer pipe and between them a middle layer of a softer material than the inner pipe. The invention also relates to a method of producing a co-extruded multilayer pipe in a multilayer extruder, and an apparatus for producing the co-extruded multilayer pipe.

Co-extruder multilayer plastic pipe, method for producing the same, and device therefor

A multi-layer reinforced and stabilized cable construction comprising a core portion (,) and a non-metallic sheathing portion having barrier and protective layers and two or more outer reinforcement layers. In order for the mechanical and barrier properties of the cable to be controlled, the barrier and protective layers and/or the reinforcement layers (,) are oriented in a controlled manner at different angles by fibrous reinforcements or lamellar barriers.

Multi-layer reinforced and stabilized cable construction

Growing community of inventors

Hollola, Finland

Jyri J{umlaut Over (a)}rvenkyl{umlaut Over (a)}