(19)
(11) EP 1 506 322 A2

(12)

(88) Date of publication A3:
26.02.2004

(43) Date of publication:
16.02.2005 Bulletin 2005/07

(21) Application number: 03705856.7

(22) Date of filing: 21.01.2003
(51) International Patent Classification (IPC)7: C22C 32/00
(86) International application number:
PCT/US2003/001823
(87) International publication number:
WO 2003/062482 (31.07.2003 Gazette 2003/31)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR
Designated Extension States:
AL LT LV MK RO

(30) Priority: 23.01.2002 US 351146 P

(71) Applicant: H.C. Starck Inc.
NewtonMassachusetts 02161-1951 (US)

(72) Inventors:
  • AIMONE, Paul, R.
    Bridgewater, MA 02324-2275 (US)
  • GOLDBERG, Howard, V.
    Framingham, MA 017-7910 (US)
  • MALEN, Richard
    Ayer, MA 01432-1605 (US)
  • MORSE, Thomas, A.
    Melrose, MA 02176-5615 (US)
  • KUMAR, Prabhat
    Framingham, MA 01701-7656 (US)
  • ULENHUT, Henning
    Cambridge, MA 02319 (US)

(74) Representative: Peters, Frank, Dr. 
Bayer ChemicalsLaw and PatentsPatents and Licensing
51368 Leverkusen
51368 Leverkusen (DE)

   


(54) STABILIZED GRAIN SIZE REFRACTORY METAL POWDER METALLURGY MILL PRODUCTS