| 摘要 |
<p>A polypropylene coated steel pipe comprising a steel pipe, an adhesive layer coated on the external surface of the steel pipe, which has been subjected to a pretreatment, and a polypropylene layer coated on the adhesive layer. The outermost polypropylene layer comprises, as a main constituent, a crystalline ethylene-propylene block copolymer and the adhesive layer comprises a modified polyolefin adhesive.</p> |
| 申请人 |
NIPPON STEEL CORP., TOKIO/TOKYO, JP;UBE INDUSTRIES, LTD., UBE, YAMAGUCHI, JP |
发明人 |
SUZUKI, KAZUYUKI;ISHIDA, MASAMI;OHTSUKI, FUYUHIKO, KIMITSU, CHIBA, JP;INUIZAWA, YOSHIHIRO;HINENOYA, SABURO, SAKAI, OSAKA, JP;TANAKA, MANSEI;SHINDOU, YOSHIO, KIMITSU, CHIBA, JP |
