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EP 2 925 469 A1

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(43) Date of publication: 07.10.2015 Bulletin 2015/41 (21) Application number: 14732942.9 (22) Date of filing: 27.05.2014

(51) International Patent Classification (IPC):  B22D 25/00(2006.01) C22C 1/08(2006.01) B22D 27/13(2006.01) B22D 23/00(2006.01) B22D 21/02(2006.01) (86) International application number: PCT/IB2014/000905 (87) International publication number: WO 2015/059531 (30.04.2015 Gazette 2015/17)

(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 (30) Priority: 24.10.2013 PL 40576013 (71) Applicant: Instytut Odlewnictwa 30-418 Kraków (PL)	(72) Inventors: SOBCZAK, Jerzy, Jozef PL-32-020 Wieliczka (PL) SOBCZAK, Natalia PL-32-020 Wieliczka (PL) DLUGOSZ, Piotr PL-31-636 Kraków (PL) DARLAK, Pawel PL-30-820 Kraków (PL) SHAPOVALOV, Vladimir Albuquerque, NM 87112 (US) BOJKO, Ludmila Burlington, ON L7N 2Z9 (CA) (74) Representative: Balinska, Ewa  POLSERVICE Sp.z o.o. Ul. Bluszczanska 73 00-712 Warszawa 00-712 Warszawa (PL)