Title:
INTERNALLY LINED STEEL PIPE
Document Type and Number:
WIPO Patent Application WO/2013/076970
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide an alcohol-resistant internally lined steel pipe of which the inner surface exhibits improved corrosion resistance to bioalcohols such as bioethanol. The present invention is an internally lined steel pipe provided with: an epoxy resin layer on the inner surface of the steel pipe; and a polyolefin layer which is formed on the epoxy resin layer and which has a thickness of 300 to 5000μm. The epoxy resin layer is formed by curing with an amine-based curing agent and has a thickness of 20 to 200μm, while 0.5 to 30 mass% of at least one oxoate selected from among oxoates of tungsten, vanadium, molybdenum and zirconium is contained in the epoxy resin layer.
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Inventors:
MURASE MASATSUGU (JP)
HOSHINO TOSHIYUKI (JP)
HOSHINO TOSHIYUKI (JP)
Application Number:
PCT/JP2012/007453
Publication Date:
May 30, 2013
Filing Date:
November 20, 2012
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
B32B1/08; B32B15/092; C22C38/00; C22C38/04
Foreign References:
| JPH08159368A | 1996-06-21 | |||
| JP2002172730A | 2002-06-18 | |||
| JPS59222275A | 1984-12-13 | |||
| JPH0811258A | 1996-01-16 |
Attorney, Agent or Firm:
SUGIMURA, KENJI (JP)
Kenji Sugimura (JP)
Kenji Sugimura (JP)
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