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1. (WO2002004707) SURFACE TREATING AGENT FOR METAL MEMBER
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2002/004707    International Application No.:    PCT/JP2001/005969
Publication Date: 17.01.2002 International Filing Date: 10.07.2001
Chapter 2 Demand Filed:    22.11.2001    
IPC:
C22B 3/16 (2006.01), C23F 1/28 (2006.01)
Applicants: EBARA INDUSTRIAL CLEANING CO., LTD [JP/JP]; 4-1, Egawa 1-chome, Kawasaki-ku Kawasaki-shi, Kanagawa 210-0823 (JP) (For All Designated States Except US).
TAKEDA, Masayuki [JP/JP]; (JP) (For US Only).
SATO, Fuminori [JP/JP]; (JP) (For US Only).
MIYAZAKI, Atsuo [JP/JP]; (JP) (For US Only)
Inventors: TAKEDA, Masayuki; (JP).
SATO, Fuminori; (JP).
MIYAZAKI, Atsuo; (JP)
Agent: SHAMOTO, Ichio; YUASA AND HARA Section 206, New Ohtemachi Bldg. 2-1, Ohtemachi 2-chome Chiyoda-ku, Tokyo 100-0004 (JP)
Priority Data:
2000-210123 11.07.2000 JP
Title (EN) SURFACE TREATING AGENT FOR METAL MEMBER
(FR) AGENT DE TRAITEMENT DE SURFACE POUR ELEMENT METALLIQUE
Abstract: front page image
(EN)A surface treating agent for a metal member comprising an aqueous mixed acid solution prepared from oxalic acid and an inorganic acid; a method and an apparatus for carrying out the surface treatment of a metal member using the agent; and a method and an apparatus for carrying out the surface treatment of a metal member by circulating an oxalic acid based treating solution. The surface treating agent for a metal member is based on oxalic acid and also can be effectively used for an application involving dissolution of iron (II).
(FR)La présente invention concerne: un agent de traitement de surface destiné à un élément métallique, comprenant une solution acide mélangée aqueuse préparée à partir de l'acide oxalique et d'un acide minéral; un procédé et un appareil servant à réaliser le traitement de surface d'un élément métallique au moyen de l'agent de traitement; et un procédé et un appareil servant à réaliser le traitement de surface d'un élément métallique grâce à la circulation d'une solution de traitement basée sur l'acide oxalique. L'agent de traitement de surface destiné à un élément métallique se base sur l'acide oxalique et peut également être utilisé avantageusement pour une application faisant intervenir la dissolution de fer (II).
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, US, UZ, VN, YU, ZA, ZW.
African Regional Intellectual Property Organization (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG).
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)