EP 1228263 A1 20020807 - COATING AN ALUMINUM ALLOY SUBSTRATE
Title (en)
COATING AN ALUMINUM ALLOY SUBSTRATE
Title (de)
BESCHICHTUNG VON ALUMINIUMLEGIERUNGSSUBSTRATEN
Title (fr)
REVETEMENT D'UN SUBSTRAT EN ALLIAGE D'ALUMINIUM
Publication
Application
Priority
- US 9925894 W 19991103
- US 7413698 A 19980507
Abstract (en)
[origin: WO0132955A1] An alluminum alloy substrate is pretreated with an aqueous solution containing an organophosphorus compound, preferably a vinylphosphonic acid-acrylic acid copolymer, before coating the substrate with a polymer. Passing the substrate through the solution contaminates it with aluminum and other elements. The pretreatment solution is rejuvenated by removing aluminum with a cation exchange resin that preferably contains a styrene-divinyl benzene copolymer functionalized with sulfonate groups. Rinsing the substrate contaminates the rinse water with the copolymer. The rinse water is concentrated by reverse osmosis or membrane ultrafiltration and retured to the pretreatment solution.
IPC 1-7
IPC 8 full level
B05D 3/10 (2006.01); B05D 7/00 (2006.01); B05D 7/16 (2006.01); B05D 7/14 (2006.01); C23C 22/56 (2006.01); C23C 22/86 (2006.01); C23C 26/00 (2006.01)
IPC 8 main group level
C23C (2006.01)
CPC (source: EP KR)
B05D 7/16 (2013.01 - EP); B05D 7/51 (2013.01 - EP); C23C 18/20 (2013.01 - KR); C23C 22/86 (2013.01 - EP); B05D 7/52 (2013.01 - EP); B05D 2202/25 (2013.01 - EP)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0132955 A1 20010510; AT E263853 T1 20040415; AU 3097600 A 20010514; BR 9917547 A 20020625; CA 2397674 A1 20010510; CA 2397674 C 20060704; CN 1187473 C 20050202; CN 1375018 A 20021016; CZ 20021422 A3 20030115; CZ 299666 B6 20081008; DE 69916339 D1 20040513; DE 69916339 T2 20050317; DK 1228263 T3 20040809; EP 1228263 A1 20020807; EP 1228263 B1 20040407; ES 2219101 T3 20041116; HU P0203608 A2 20030328; HU P0203608 A3 20050530; JP 2003513773 A 20030415; KR 100610579 B1 20060809; KR 20020068531 A 20020827; NO 20022089 D0 20020502; NO 20022089 L 20020508; PL 354493 A1 20040126; PT 1228263 E 20040730; SK 286005 B6 20080107; SK 5932002 A3 20021203; TR 200201197 T2 20020821
DOCDB simple family (application)
US 9925894 W 19991103; AT 99964956 T 19991103; AU 3097600 A 19991103; BR 9917547 A 19991103; CA 2397674 A 19991103; CN 99816993 A 19991103; CZ 20021422 A 19991103; DE 69916339 T 19991103; DK 99964956 T 19991103; EP 99964956 A 19991103; ES 99964956 T 19991103; HU P0203608 A 19991103; JP 2001535632 A 19991103; KR 20027005773 A 20020503; NO 20022089 A 20020502; PL 35449399 A 19991103; PT 99964956 T 19991103; SK 5932002 A 19991103; TR 200201197 T 19991103