(19)

(11)

EP 2 638 195 A2

(12)

(88) Date of publication A3: 05.07.2012 (43) Date of publication: 18.09.2013 Bulletin 2013/38 (21) Application number: 11839285.1 (22) Date of filing: 09.11.2011

(51) International Patent Classification (IPC):  D06B 1/02(2006.01) D06M 11/73(2006.01) D06B 3/04(2006.01) D06M 13/244(2006.01) (86) International application number: PCT/US2011/059982 (87) International publication number: WO 2012/064848 (18.05.2012 Gazette 2012/20)

(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: 12.11.2010 US 413047 P (71) Applicant: Invista Technologies S.a r.l. 9000 St. Gallen (CH)	(72) Inventor: RAO, Mohan, Sundar Chattanooga TN 37421 (US) (74) Representative: Cockerton, Bruce Roger  Carpmaels & Ransford LLP One Southampton Row London WC1B 5HA London WC1B 5HA (GB)