(19)

(11)

EP 2 449 175 A1

(12)

(43) Date of publication: 09.05.2012 Bulletin 2012/19 (21) Application number: 10794581.8 (22) Date of filing: 25.06.2010

(51) International Patent Classification (IPC):  D21H 17/63(2006.01) D21H 21/06(2006.01) (86) International application number: PCT/US2010/039951 (87) International publication number: WO 2011/002677 (06.01.2011 Gazette 2011/01)

(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 SE SI SK SM TR (30) Priority: 29.06.2009 US 221107 P (71) Applicant: Buckman Laboratories International, Inc Memphis, TN 38108-0305 (US)	(72) Inventor: LU, Chen Germantown, TN 38139 (US) (74) Representative: Matthews, Derek Peter  Dehns St Bride's House 10 Salisbury Square London EC4Y 8JD London EC4Y 8JD (GB)