Global Patent Index - EP 2455514 A4

EP 2455514 A4 20180110 - METHOD FOR TREATING IRON-BASED METAL SURFACE WHICH IS EXPOSED TO SUPERHEATED STEAM

Title (en)

METHOD FOR TREATING IRON-BASED METAL SURFACE WHICH IS EXPOSED TO SUPERHEATED STEAM

Title (de)

VERFAHREN ZUR BEHANDLUNG VON EINEM SUPRAERHITZTEN STROM AUSGESETZTEN METALLOBERFLÄCHEN AUF EISENBASIS

Title (fr)

PROCÉDÉ POUR TRAITER UNE SURFACE MÉTALLIQUE À BASE DE FER QUI EST EXPOSÉE À DE LA VAPEUR SURCHAUFFÉE

Publication

EP 2455514 A4 20180110 (EN)

Application

EP 10797074 A 20100701

Priority

  • JP 2010061264 W 20100701
  • JP 2009159887 A 20090706

Abstract (en)

[origin: EP2455514A1] The present invention provides a surface treatment method for suppressing the formation and growth of superheated steam oxide scale on an iron-based metal surface exposed to superheated steam, comprising treating said iron-based metal surface with a surface-treatment agent which comprises a polyoxy saturated aliphatic mono- or di-carboxylic acid or a salt thereof and an amine compound represented by the following formula (I): €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒZ(CH 2 CH 2 NH) n CH 2 CH 2 NH 2 €ƒ€ƒ€ƒ€ƒ€ƒ(I) wherein Z represents H or OH or NH 2 group, and n is an integer of 0-5.

IPC 8 full level

C23F 14/02 (2006.01); C23F 11/08 (2006.01); F16L 58/00 (2006.01); F22B 37/02 (2006.01)

CPC (source: EP US)

C23F 11/08 (2013.01 - EP US); C23F 11/10 (2013.01 - EP US); C23F 14/02 (2013.01 - EP US); F22B 37/025 (2013.01 - EP US)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

DOCDB simple family (publication)

EP 2455514 A1 20120523; EP 2455514 A4 20180110; JP 2011012333 A 20110120; JP 5363893 B2 20131211; US 2012145187 A1 20120614; WO 2011004763 A1 20110113

DOCDB simple family (application)

EP 10797074 A 20100701; JP 2009159887 A 20090706; JP 2010061264 W 20100701; US 201013377851 A 20100701