(19)

(11)

EP 2 689 199 A2

(12)

(88) Date of publication A3: 28.11.2013 (43) Date of publication: 29.01.2014 Bulletin 2014/05 (21) Application number: 12712012.9 (22) Date of filing: 13.03.2012

(51) International Patent Classification (IPC):  F25B 15/02(2006.01) C07D 303/02(2006.01) (86) International application number: PCT/US2012/028855 (87) International publication number: WO 2012/134803 (04.10.2012 Gazette 2012/40)

(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: 25.03.2011 US 201161467452 P (71) Applicant: 3M Innovative Properties Company Saint Paul, MN 55133-3427 (US)

(72) Inventors: FAYEMI, Bamidele O. Saint Paul, Minnesota 55133-3427 (US) ZHANG, Zhongxing Saint Paul, Minnesota 55133-3427 (US) COSTELLO, Michael G. Saint Paul, Minnesota 55133-3427 (US) BULINSKI, Michael J. Saint Paul, Minnesota 55133-3427 (US) OWENS, John G. Saint Paul, Minnesota 55133-3427 (US) TUMA, Phillip E. Saint Paul, Minnesota 55133-3427 (US) MINDAY, Richard M. Saint Paul, Minnesota 55133-3427 (US) FLYNN, Richard M. Saint Paul, Minnesota 55133-3427 (US) (74) Representative: Herzog, Fiesser & Partner  Isartorplatz 1 80331 München 80331 München (DE)