EP 0757725 B1 19990908 - 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 OBERFLÄCHENBEHANDLUNG ALUMINIUMHALTIGER METALLE
Title (fr)
COMPOSITION ET PROCEDE POUR TRAITER LA SURFACE DE METAUX ALUMINEUX
Publication
Application
Priority
- JP 7721994 A 19940415
- US 9503933 W 19950407
Abstract (en)
[origin: WO9528509A1] A surface of aluminiferous metal is brought into contact at 30 DEG C to 65 DEG C for 5 to 60 seconds with a surface treatment bath with a pH of 2.0 to 6.5 that contains phosphate ion, condensed phosphate ion, and a water soluble polymer in the following weight proportions: 1 - 30 : 0.1 - 10 : 0.2 - 20. This is followed by a water rinse and drying by heating. The water soluble polymer has a chemical structure conforming with formula (I), in which (i) each of X<1> and X<2> represents a hydrogen atom, a C1 to C5 alkyl group, or a C1 to C5 hydroxyalkyl group; (ii) each of Y<1> and Y<2> represents a hydrogen atom or a moiety "Z" that conforms to formula (II) or (III), wherein each of R<1>, R<2>, R<3>, R<4>, and R<5> represents a C1 to C10 alkyl group or a C1 to C10 hydroxyalkyl group; (iii) the average value for the number of Z moieties substituted on each phenyl ring in the polymer molecule is from 0.2 to 1.0; (iv) n is an integer with a value from 2 to 50; and (v) each polymer molecule contains at least one Z moiety.
IPC 1-7
IPC 8 full level
B05D 3/10 (2006.01); B05D 7/14 (2006.01); B05D 7/24 (2006.01); C08G 8/00 (2006.01); C08G 8/04 (2006.01); C08L 61/04 (2006.01); C08L 61/14 (2006.01); C23C 22/07 (2006.01); C23C 22/23 (2006.01)
CPC (source: EP KR)
C23C 22/07 (2013.01 - KR); C23C 22/23 (2013.01 - EP)
Designated contracting state (EPC)
AT DE DK ES FR GB IT NL SE
DOCDB simple family (publication)
WO 9528509 A1 19951026; AT E184331 T1 19990915; AU 2232995 A 19951110; AU 685938 B2 19980129; BR 9507365 A 19971007; CA 2187795 A1 19951026; CN 1092246 C 20021009; CN 1112166 A 19951122; DE 69512049 D1 19991014; DE 69512049 T2 20000427; EP 0757725 A1 19970212; EP 0757725 A4 19970730; EP 0757725 B1 19990908; ES 2136844 T3 19991201; JP 2771110 B2 19980702; JP H07278836 A 19951024; KR 0179685 B1 19990218; KR 950029375 A 19951122; MY 113052 A 20011130; TW 404975 B 20000911; ZA 953031 B 19951221
DOCDB simple family (application)
US 9503933 W 19950407; AT 95915455 T 19950407; AU 2232995 A 19950407; BR 9507365 A 19950407; CA 2187795 A 19950407; CN 95103820 A 19950414; DE 69512049 T 19950407; EP 95915455 A 19950407; ES 95915455 T 19950407; JP 7721994 A 19940415; KR 19950008908 A 19950415; MY PI19950943 A 19950412; TW 84103586 A 19950412; ZA 953031 A 19950412