(19)

(11)

EP 2 794 216 A1

(12)

(43) Date of publication: 29.10.2014 Bulletin 2014/44 (21) Application number: 12821154.7 (22) Date of filing: 24.12.2012

(51) International Patent Classification (IPC):  B29B 9/06(2006.01) E21B 43/267(2006.01) C09K 8/80(2006.01) (86) International application number: PCT/NL2012/050926 (87) International publication number: WO 2013/095150 (27.06.2013 Gazette 2013/26)

(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: 22.12.2011 NL 1039260 22.12.2011 US 201161579294 P (71) Applicant: Resin Proppants International B.V. 2628 XJ Delft (NL)	(72) Inventors: TRION, Rudolf NL-4625 DD Bergen Op Zoom (NL) DE JAGER, Gerard NL-2628 AP Delft (NL) (74) Representative: Algemeen Octrooi- en Merkenbureau B.V.  P.O. Box 645 5600 AP Eindhoven 5600 AP Eindhoven (NL)