(19)

(11)

EP 2 780 490 A2

(12)

(88) Date of publication A3: 29.08.2013 (43) Date of publication: 24.09.2014 Bulletin 2014/39 (21) Application number: 12806616.4 (22) Date of filing: 16.11.2012

(51) International Patent Classification (IPC):  C23C 18/18(2006.01) C23C 18/20(2006.01) C23C 18/16(2006.01) C23C 18/30(2006.01) (86) International application number: PCT/GB2012/052846 (87) International publication number: WO 2013/072697 (23.05.2013 Gazette 2013/21)

(84) Designated Contracting States: AL 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 RS SE SI SK SM TR (30) Priority: 17.11.2011 GB 201119867 (71) Applicant: Surface Innovations Limited Abingdon, Oxfordshire OX14 4SA (GB)	(72) Inventors: BADYAL, Jas Pal Singh Durham DH1 3LE (GB) WOOD, Thomas J. Durham DH1 3LE (GB) (74) Representative: Glansdorp, Freija Gwendolyn  Greaves Brewster LLP Copa House Station Road Cheddar Somerset BS27 3AH Somerset BS27 3AH (GB)