EP 0754250 A4 19970611 - COMPOSITION AND PROCESS FOR TREATING THE SURFACE OF ALUMINIFEROUS METALS

Title (en)

COMPOSITION AND PROCESS FOR TREATING THE SURFACE OF ALUMINIFEROUS METALS

Title (de)

ZUSAMMENSETZUNG UND VERFAHREN ZUR BEHANDLUNG ALUMINIUMHALTIGER OBERFLÄCHEN

Title (fr)

COMPOSITION ET PROCEDE DE TRAITEMENT DE LA SURFACE DE METAUX ALUMINEUX

Publication

EP 0754250 A4 19970611 (EN)

Application

EP 95914039 A 19950321

Priority

JP 5377994 A 19940324
JP 30763994 A 19941212
US 9503192 W 19950321

Abstract (en)

[origin: WO9525831A1] An aqueous liquid composition that has a pH from 1 to 4.0 and comprises from 1 to 80 pbw (parts by weight) of phosphate ions, from 1 to 15 pbw stoichiometric equivalent as zirconium atoms from soluble zirconium compounds, from 3 to 100 pbw stoichiometric equivalent as fluorine atoms of soluble fluorides, and from 1 to 100 pbw of oxidant rapidly produces a very corrosion-resistant and highly paint-adherent coating on the surface of aluminiferous metals when contacted with them at 30 DEG C to 50 DEG C for 2 to 30 seconds, followed by a water rinse and drying by heating.

IPC 1-7

C23C 22/07; C23C 22/36

IPC 8 full level

B05D 7/14 (2006.01); C23C 22/36 (2006.01)

CPC (source: EP)

C23C 22/361 (2013.01)

Citation (search report)

[X] WO 9012902 A1 19901101 - HENKEL CORP [US]
[X] EP 0411606 A2 19910206 - NIPPON PAINT CO LTD [JP]
[X] EP 0337075 A2 19891018 - NIPPON PAINT CO LTD [JP]
[PX] WO 9504169 A1 19950209 - HENKEL CORP [US]
[E] EP 0726968 A1 19960821 - HENKEL CORP [US]
[A] FR 2347459 A1 19771104 - AMCHEM PROD [US]
[X] CHEMICAL ABSTRACTS, vol. 90, no. 26, 25 June 1979, Columbus, Ohio, US; abstract no. 208761q, NIHON PARKERIZING: "Surface treatment of Aluminum" page 303; XP002001672 & JP S5424232 A 19790223 - NIPPON PACKAGING KK
See references of WO 9525831A1

Designated contracting state (EPC)

DE ES FR GB IT

DOCDB simple family (publication)

WO 9525831 A1 19950928; AU 2120195 A 19951009; AU 684929 B2 19980108; BR 9507162 A 19970909; CA 2186025 A1 19950928; EP 0754250 A1 19970122; EP 0754250 A4 19970611; JP 2828409 B2 19981125; JP H07310189 A 19951128; MX PA96004196 A 20040819

DOCDB simple family (application)

US 9503192 W 19950321; AU 2120195 A 19950321; BR 9507162 A 19950321; CA 2186025 A 19950321; EP 95914039 A 19950321; JP 30763994 A 19941212; MX 9604196 A 19950321