(19)

(11)

EP 2 720 809 A1

(12)

(43) Date of publication: 23.04.2014 Bulletin 2014/17 (21) Application number: 12800366.2 (22) Date of filing: 13.06.2012

(51) International Patent Classification (IPC):  B05D 5/12(2006.01) (86) International application number: PCT/US2012/042140 (87) International publication number: WO 2012/174040 (20.12.2012 Gazette 2012/51)

(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: 17.06.2011 US 201161497971 P (71) Applicant: University of North Texas Denton, Texas 76207 (US)	(72) Inventor: KELBER, Jefffy Denton, TX 76203-5017 (US) (74) Representative: Keen, Celia Mary  J A Kemp 14 South Square Gray's Inn London WC1R 5JJ London WC1R 5JJ (GB)