(19)

(11)

EP 2 705 128 A1

(12)

(43) Date of publication: 12.03.2014 Bulletin 2014/11 (21) Application number: 12719676.4 (22) Date of filing: 03.05.2012

(51) International Patent Classification (IPC):  C10M 173/02(2006.01) (86) International application number: PCT/EP2012/058086 (87) International publication number: WO 2012/152639 (15.11.2012 Gazette 2012/46)

(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: 06.05.2011 US 201161483271 P (71) Applicant: Chemetall GmbH 60487 Frankfurt am Main (DE)	(72) Inventor: ZHAO, Yixing Basking Ridge New Jersey 07920 (US) (74) Representative: Hübner, Günter  Chemetall GmbH Patente, Marken & Lizenzen Trakehner Strasse 3 60487 Frankfurt am Main 60487 Frankfurt am Main (DE)