(19)

(11)

EP 2 268 777 A1

(12)

(43) Date of publication: 05.01.2011 Bulletin 2011/01 (21) Application number: 08743223.3 (22) Date of filing: 24.04.2008

(51) International Patent Classification (IPC):  C10M 103/06(2006.01) (86) International application number: PCT/US2008/005256 (87) International publication number: WO 2009/131556 (29.10.2009 Gazette 2009/44)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA MK RS (71) Applicant: Ppt Research, Inc. Allentown, PA 18109 (US)	(72) Inventors: WARD, Irl E. Bethlehem, PA 18015 (US) DING, Deliang Allentpwn, PA 18016 (US) (74) Representative: Lohmanns, Bernard  Bauer Vorberg Kayser Patentanwälte Goltsteinstrasse 87 50968 Köln 50968 Köln (DE)