Metal pipes with anticorrosive polyolefin covering layer
作者： Norbert Jansen , Edwin Welles , Leonard Van Beugen
DOI:
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摘要: The present invention provides a metal pipe coated on at least section of the with polyolefin coating system, wherein system consists following layers: (a) optionally, corrosion protective layer chromate, phosphate or other salt; (b) based adhesive, preferably in thickness 0.3 - 5 mm; (c) PE PP layer, 1 10 (d) an adhesion promoting between adhesive and layer; contains organic phase consisting substantially saturated hydrocarbons, amorphous polypropylene, ethylene-propylene copolymers poly(iso)butylene (co)polymers, said being flowable when pressure kgf/cm 2 is applied, continuous over section, adheres to both coating.
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