Steel post having corrosion control property for embedded part

• US 20060101778A1
• Filed: 11/02/2005
• Published: 05/18/2006
• Est. Priority Date: 11/04/2004
• Status: Abandoned Application

• Current Assignee: Nippon Steel Corporation
• Original Assignee: Nippon Steel Corporation
• Inventors: Yamamoto, Masahiro, Yamanaka, Shintaro
• Application Number:
  US11/265,904
• Publication Number:
  US 20060101778A1
• Time in Patent Office: Days
• US Class Current: 52/832
• CPC Class Codes: B05D 2350/65 metal layer
• CPC Class Codes: B05D 7/14 to metal, e.g. car bodies involving a chemical reaction between the metal and the coating C23
• CPC Class Codes: B32B 1/08 Tubular products
• CPC Class Codes: B32B 13/06 of metal
• CPC Class Codes: B32B 13/12 of synthetic resin
• CPC Class Codes: B32B 15/08 of synthetic resin
• CPC Class Codes: B32B 15/18 comprising iron or steel B32B15/011, B32B15/012 and B32B15/013 take precedence
• CPC Class Codes: B32B 2255/06 on metal layer
• CPC Class Codes: B32B 2255/205 Metallic coating
• CPC Class Codes: B32B 2255/26 Polymeric coating
• CPC Class Codes: B32B 2255/28 Multiple coating on one surface
• CPC Class Codes: B32B 2307/714 Inert, i.e. inert to chemical degradation, corrosion
• CPC Class Codes: B32B 2590/00 Signboards, advertising panels, road signs
• CPC Class Codes: B32B 2597/00 Tubular articles, e.g. hoses, pipes
• CPC Class Codes: C09D 5/082 characterised by the anti-corrosive pigment
• CPC Class Codes: E04H 12/2292 Holders used for protection, repair or reinforcement of the post or pole E04H12/2276 takes precedence

Abstract

A steel post superior in corrosion controllability of its embedded part even when marked for territory by dogs, that is, a steel post having corrosion controllability of an embedded part comprising a steel post having a corrosion-proofing coating or a zinc-based plating corrosion-proofing material which is provided with a coating layer comprised of a corrosion-proofing material superior in durability against an aqueous solution containing ammonium ions along the outside of the steel post to at least 50 mm up to the atmosphere side and down to the embedded material side at a top end of an interface where the steel post and material embedded in contact each other.

Claims

1. A steel post having corrosion controllability of an embedded part comprising a steel post having a corrosion-proofing coating which is provided with a coating layer comprised of a corrosion-proofing material superior in durability against an aqueous solution containing ammonium ions along the outside of the steel post to at least 50 mm up to the atmosphere side and down to the embedded material side at a top end of an interface where the steel post and material embedded in contact each other.

3. A steel post having corrosion controllability of an embedded part as set forth in claim 1 or 2, wherein said corrosion-proofing material is a corrosion resistant metal material of a thickness of at least 0.1 mm having an organic resin binder layer at the steel post side.

4. A steel post having corrosion controllability of an embedded part as set forth in claim 1 or 2, wherein said corrosion-proofing material is an epoxy-based coating of a thickness of at least 50 μ

m containing 1 wt % to 30 wt % of a pigment having an ability to neutralize ammonium ions.

2. A steel post having corrosion controllability of an embedded part comprising a steel post having a zinc-based plating corrosion-proofing material superior in durability against an aqueous solution containing ammonium ions along the outside of the steel post to at least 50 mm up to the atmosphere side and down to the embedded material side at a top end of an interface where the steel post and material embedded in contact each other.