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1. (WO2016062653) STEEL PIPE COATED WITH A CURED OLEFINIC THERMOPLASTIC ELASTOMER

Pub. No.:    WO/2016/062653    International Application No.:    PCT/EP2015/074110
Publication Date: Fri Apr 29 01:59:59 CEST 2016 International Filing Date: Tue Oct 20 01:59:59 CEST 2015
IPC: C08L 23/02
C08L 23/14
F16L 9/02
F16L 58/10
Applicants: MITSUI CHEMICALS EUROPE GMBH
Inventors: WISSMANN, Andreas
HINTERBAUER, Winfried
ITO, Yuichi
Title: STEEL PIPE COATED WITH A CURED OLEFINIC THERMOPLASTIC ELASTOMER
Abstract:
The invention relates to a coated steel pipe which can be used in severe environmental conditions, and which has excellent heat resistance and impact resistance at low temperatures. This is achieved by means of a steel pipe that is coated with a cured olefinic thermoplastic elastomer via denatured polyolefins on the surface-pretreated outer surface, said elastomer being produced from a mixture containing between 15 and 38 wt.% ethylene-α-olefin-non-conjugated polyene copolymer rubber (A) from ethylene, one or more α-olefins of a carbon number of between 3 and 20 and one or more non-conjugated polyenes, between 85 and 62 wt.% polypropylene resin (B) [the total amount of the components (A) and (B) being 100 wt.%] and between 0.05 and 10 wt.% curing agent (C).