Title:
COATED MEMBER
Document Type and Number:
WIPO Patent Application WO/2022/230461
Kind Code:
A1
Abstract:
In order to provide a coated member which has a chemical conversion-treated layer not containing trivalent chromium and cobalt and which can ensure adhesion of a resin layer covering the chemical conversion-treated layer, provided is a vehicle pipe (1) which is a coated member in which an outer periphery surface (10a) of a steel pipe (10) is coated by a multi-layered coating (20). The multi-layered coating (20) comprises: a first metal layer (21) which is layered on the steel pipe (10) and which has sacrificial corrosion resistance with respect to the steel pipe (10); a chemical conversion-treated layer (23) which is layered on the first metal layer (21) and which contains calcium phosphate; and a resin layer (24) formed by resin and layered on the chemical conversion-treated layer (23).
Inventors:
KADOTA RYOSUKE (JP)
Application Number:
PCT/JP2022/013483
Publication Date:
November 03, 2022
Filing Date:
March 23, 2022
Export Citation:
Assignee:
USUI CO LTD (JP)
International Classes:
C23C28/00; B32B15/08; B32B15/18; C23C22/22
Domestic Patent References:
| WO2017110685A1 | 2017-06-29 |
Foreign References:
| JP2003305804A | 2003-10-28 |
Attorney, Agent or Firm:
CREO LAW & INTELLECTUAL PROPERTY (JP)
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