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EP 3 074 362 A1

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(43) Date of publication: 05.10.2016 Bulletin 2016/40 (21) Application number: 13814679.0 (22) Date of filing: 25.11.2013

(51) International Patent Classification (IPC):  C04B 28/04(2006.01) C04B 14/02(2006.01) C04B 111/94(2006.01) C04B 28/14(2006.01) C04B 111/00(2006.01) (86) International application number: PCT/US2013/071675 (87) International publication number: WO 2015/076841 (28.05.2015 Gazette 2015/21)

(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 Designated Extension States: BA ME (71) Applicant: Superior Graphite CO. Chicago, IL 60606 (US)

(72) Inventors: CARNEY, Peter Roy Vero Beach, FL 32963 (US) BAER, Craig Allen Romeoville, IL 60446 (US) DERWIN, David J. Prospect Heights, IL 60070 (US) ZHOU, Changjun Chicago, IL 60608 (US) WAWRZOS, Frank A. Mchenry, IL 60050 (US) TLUSTOCHOWICZ, Marcin Plainfield, IL 60544 (US) (74) Representative: Parker, Andrew James  Meissner Bolte Patentanwälte Rechtsanwälte Partnerschaft mbB Postfach 86 06 24 81633 München 81633 München (DE)