(19)

(11)

EP 2 969 276 A1

(12)

(43) Date of publication: 20.01.2016 Bulletin 2016/03 (21) Application number: 14762220.3 (22) Date of filing: 14.03.2014

(51) International Patent Classification (IPC):  B09C 1/08(2006.01) (86) International application number: PCT/US2014/028885 (87) International publication number: WO 2014/144463 (18.09.2014 Gazette 2014/38)

(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 Designated Extension States: BA ME (30) Priority: 15.03.2013 US 201361791225 P (71) Applicant: The University Of Houston System Houston, TX 77004 (US)	(72) Inventors: JACOBSON, Allan J. Houston, TX 77004 (US) SAMARASEKERE, Pradeep Houston, TX 77004 (US) (74) Representative: Shanks, Andrew  Marks & Clerk LLP Aurora 120 Bothwell Street Glasgow G2 7JS Glasgow G2 7JS (GB)