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1. (WO2018219916) METHOD FOR PRODUCING INSULATED PIPES

Pub. No.:    WO/2018/219916    International Application No.:    PCT/EP2018/064016
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Wed May 30 01:59:59 CEST 2018
IPC: B32B 1/08
B32B 5/18
B32B 5/20
B32B 7/12
B32B 15/04
B32B 15/08
B32B 15/095
B32B 15/18
B32B 15/20
B32B 27/18
B32B 27/40
B32B 1/06
F16L 11/14
F16L 59/14
F16L 59/153
B32B 5/32
Applicants: BASF SE
Inventors: GRIESER-SCHMITZ, Christof
ELLERSIEK, Carsten
POPOV, Alex
Title: METHOD FOR PRODUCING INSULATED PIPES
Abstract:
The invention relates to a method for producing insulated pipes, comprising the providing of a medium pipe and a film hose, continuously formed from a film, or a medium pipe and a jacket pipe, wherein the medium pipe is arranged within the film hose or the jacket pipe and a gap is formed between the medium pipe and film hose or jacket pipe, wherein a bonding agent is applied to the surface of the medium pipe facing the film hose or jacket pipe, the filling of a polyurethane system, at least comprising an isocyanate component (a) containing at least one isocyanate, a polyol component (b) and at least one catalyst into the gap before the bonding agent is completely cured, and allowing the polyurethane system to foam and cure. The invention further relates to insulated pipes, obtainable or obtained according by the method according to the invention.