Global Patent Index - EP 1141448 A2

EP 1141448 A2 20011010 - IMPROVED SEALING METHOD FOR ANODIZED METAL SURFACES

Title (en)

IMPROVED SEALING METHOD FOR ANODIZED METAL SURFACES

Title (de)

VERBESSERTES VERDICHTUNGSVERFAHREN FÜR ANODISIERTE METALLOBERFLÄCHEN

Title (fr)

PROCEDE AMELIORE D'ETANCHEIFICATION POUR SURFACES METALLIQUES ANODISEES

Publication

EP 1141448 A2 20011010 (DE)

Application

EP 99968340 A 19991207

Priority

  • DE 19858034 A 19981216
  • EP 9909549 W 19991207

Abstract (en)

[origin: DE19858034A1] The invention relates to a method for the subsequent treatment of anodized metal surfaces, whereby the metal surfaces are brought into contact with an aqueous solution for sealing or after sealing. Said solution has a pH value ranging from 1 to 14 and contains 0.01 to 10 g/l of one or more acids having fluoroalkyl groups with 2 to 22 carbon atoms and/or of fluorinated polymers or copolymers of acrylic acid and/or methacrylic acid or of each of the salts of these acids. The invention also relates to the use of acids having fluoroalkyl groups with 2 to 22 carbon atoms and/or of fluoroalkyl with 2 to 22 C atoms and/or of fluorinated polymers or copolymers of acrylic acid and/or methacrylic acid or of each of the salts of these acids in order to reduce the soil adherence to anodized metal surfaces.

IPC 1-7

C25D 11/24

IPC 8 full level

C25D 11/18 (2006.01); C25D 11/24 (2006.01)

CPC (source: EP)

C25D 11/246 (2013.01)

Citation (search report)

See references of WO 0036190A2

Designated contracting state (EPC)

DE ES FR GB IT

DOCDB simple family (publication)

DE 19858034 A1 20000621; AU 2537600 A 20000703; CA 2356190 A1 20000622; EP 1141448 A2 20011010; JP 2002532631 A 20021002; WO 0036190 A2 20000622; WO 0036190 A3 20001109

DOCDB simple family (application)

DE 19858034 A 19981216; AU 2537600 A 19991207; CA 2356190 A 19991207; EP 9909549 W 19991207; EP 99968340 A 19991207; JP 2000588434 A 19991207