Title:
PHOSPHATING SOLUTION
Document Type and Number:
Japanese Patent JP2007182597
Kind Code:
A
Abstract:
To provide a phosphating solution suitable for forming a coating film superior in workability, corrosion resistance and adhesiveness to a paint film.
The phosphating solution is prepared by adding an polyamine-based organic inhibitor with a molecular weight of 200 to 30,000 having at least one functional group of -NH2 and =NH in an amount of 0.01 to 5 mass%, to a treatment solution containing phosphate ions in an amount of 0.03 to 0.5 mol/l. The polyamine-based organic inhibitor is preferably an aliphatic amine such as polyethylamine, polyethyleneimine, polyetheramine and polyaminoacrylate.
Inventors:
YAMAMOTO MASAYA
NAKANO TADASHI
MORITA YUKIHIRO
TAKETSU HIROBUMI
NAKANO TADASHI
MORITA YUKIHIRO
TAKETSU HIROBUMI
Application Number:
JP2006000539A
Publication Date:
July 19, 2007
Filing Date:
January 05, 2006
Export Citation:
Assignee:
NISSHIN STEEL CO LTD
International Classes:
C23C22/07
Domestic Patent References:
| JP2005513275A | 2005-05-12 | |||
| JP2004307923A | 2004-11-04 | |||
| JP2005126739A | 2005-05-19 | |||
| JPH10140379A | 1998-05-26 |
Foreign References:
| WO2004081128A2 | 2004-09-23 |