EP 0510105 B1 19941026 - SURFACE-TREATMENT METHOD FOR TIN-PLATED DRAWN AND IRONED CANS.
Title (en)
SURFACE-TREATMENT METHOD FOR TIN-PLATED DRAWN AND IRONED CANS.
Title (de)
OBERFLÄCHENBEHANDLUNG VON VERZINNTEN GLATT- UND TIEFGEZOGENEN DOSEN.
Title (fr)
PROCEDE DE TRAITEMENT EN SURFACE POUR BOITES ETAMEES ETIREES ET EMBOUTIES.
Publication
Application
Priority
- JP 320090 A 19900110
- US 9100202 W 19910110
Abstract (en)
[origin: WO9110756A1] A surface which has excellent adhesivity to paint, good corrosion resistance, and low friction may be obtained on drawn and iron tin plated cans by spraying the can surface for a time between 5 and 60 seconds at a temperature between 40 and 60 DEG C with an aqueous treating liquid having a pH between 4 and 6 and comprising (i) orthophosphoric acid and/or condensed phosphoric acids and (ii) a concentration of at least 0.1 w/o of a water soluble oligomer according to general formula (I) wherein n is a number with a value between 10 and 30 and each of X and Y independently represents hydrogen or a group Z, wherein Z has a chemical composition conforming to general formula (II) wherein each of R1 and R2 is an alkyl or hydroxyalkyl group having from 1 to 5 carbon atoms, except that at least 25 % of the total of all the X and Y groups in the oligomer are Z rather than hydrogen; and drying the surface thus sprayed, optionally after having first rinsed the sprayed surface with water.
IPC 1-7
IPC 8 full level
C09D 5/12 (2006.01); C09D 5/08 (2006.01); C09D 125/00 (2006.01); C09D 125/18 (2006.01); C23C 22/08 (2006.01); C23C 22/23 (2006.01)
CPC (source: EP)
C23C 22/08 (2013.01); C23C 22/23 (2013.01)
Designated contracting state (EPC)
DE ES FR GB IT SE
DOCDB simple family (publication)
WO 9110756 A1 19910725; AU 642468 B2 19931021; AU 7224391 A 19910805; BR 9105932 A 19921124; CA 2072258 A1 19910711; DE 69104825 D1 19941201; DE 69104825 T2 19950524; EP 0510105 A1 19921028; EP 0510105 B1 19941026; ES 2063494 T3 19950101; JP H03207766 A 19910911
DOCDB simple family (application)
US 9100202 W 19910110; AU 7224391 A 19910110; BR 9105932 A 19910110; CA 2072258 A 19910110; DE 69104825 T 19910110; EP 91903769 A 19910110; ES 91903769 T 19910110; JP 320090 A 19900110