(19)

(11)

EP 2 536 669 A2

(12)

(88) Date of publication A3: 22.12.2011 (43) Date of publication: 26.12.2012 Bulletin 2012/52 (21) Application number: 11745283.9 (22) Date of filing: 17.02.2011

(51) International Patent Classification (IPC):  C04B 18/08(2006.01) C04B 7/12(2006.01) C04B 28/04(2006.01) C04B 7/26(2006.01) C04B 14/02(2006.01) (86) International application number: PCT/US2011/025348 (87) International publication number: WO 2011/103371 (25.08.2011 Gazette 2011/34)

(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: 15.04.2010 US 324741 P 17.02.2010 US 305423 P (71) Applicant: Sybre Limited Stratford upon Avon Warwickshire CV37 6JG (GB)	(72) Inventors: HANSEN, Andrew S. Bountiful, UT 84010 (US) GUYNN, John M. Salt Lake City, UT 84105 (US) (74) Representative: Lessard, Jason Donat et al Hepworth Browne 29 Wood Street Stratford-upon-Avon Warwickshire, CV37 6JG Warwickshire, CV37 6JG (GB)