(19)
(11) EP 2 138 592 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
23.05.2012 Bulletin 2012/21

(43) Date of publication A2:
30.12.2009 Bulletin 2009/53

(21) Application number: 09251641.8

(22) Date of filing: 24.06.2009
(51) International Patent Classification (IPC): 
C22C 21/00(2006.01)
B41N 1/08(2006.01)
 C22F 1/04(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR
Designated Extension States:
AL BA RS

(30) Priority: 24.06.2008 GB 0811534

(71) Applicant: Bridgnorth Aluminium Ltd.
Bridgnorth Shropshire WV15 6AU (GB)

(72) Inventors:
  • Smith, Glenn Crosbie
    Hagley DY9 0NZ (GB)
  • Flukes, Graham Alfred
    Willenhall, West Midlands (GB)
  • Pickthall, Sarah Elizabeth
    Edgmond, Shropshire TF10 8LQ (GB)

(74) Representative: Johnstone, Helen Margaret 
Potter Clarkson LLP Park View House 58 The Ropewalk
Nottingham NG1 5DD
Nottingham NG1 5DD (GB)

   


(54) Alloy


(57) An Al alloy suitable for processing into a lithographic sheet, the alloy having a composition in weight % of:
Fe 0.16 to 0.40
Si up to 0.25
Cu up to 0.01
Mn up to 0.05
Ti up to 0.015
Mg 0.02 to 0.10
Zn up to 0.06
unspecified other components up to 0.03 each
Al balance, wherein the minimum Al content is 99.3.







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