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(11)

EP 2 069 465 A2

(12)

(88) Date of publication A3: 28.08.2008 (43) Date of publication: 17.06.2009 Bulletin 2009/25 (21) Application number: 07840692.3 (22) Date of filing: 03.08.2007

(51) International Patent Classification (IPC):  C11C 3/10(2006.01) C10L 1/02(2006.01) C11C 3/00(2006.01) C07C 67/03(2006.01) (86) International application number: PCT/US2007/075211 (87) International publication number: WO 2008/019325 (14.02.2008 Gazette 2008/07)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR Designated Extension States: AL BA HR MK RS (30) Priority: 04.08.2006 US 821498 P 13.09.2006 US 825575 P 13.02.2007 US 889730 P (71) Applicant: Mcneff Research Consultants, Inc. Anoka, MN 55303-0665 (US)

(72) Inventors: MCNEFF, Clayton, V. Andover, MN 55304 (US) MCNEFF, Larry, C. Anoka, MN 55303 (US) GYBERG, Arlin, E. Minneapolis, MN 55429 (US) YAN, Bingwen Shoreview, MN 55126 (US) NOWLAN, Daniel, Thomas Hugo, MN 55038 (US) KROHN, Brian Cloquet, MN 55720 (US) (74) Representative: Larcher, Dominique  Cabinet Vidon, 16 B, rue Jouanet, BP 90333 Technopole Atalante 35703 Rennes Cedex 7 35703 Rennes Cedex 7 (FR)