(19)
(11) EP 2 879 530 A1

(12)

(43) Date of publication:
10.06.2015 Bulletin 2015/24

(21) Application number: 13825032.9

(22) Date of filing: 31.07.2013
(51) International Patent Classification (IPC): 
A24D 3/02(2006.01)
A24D 3/00(2006.01)
(86) International application number:
PCT/US2013/052993
(87) International publication number:
WO 2014/022544 (06.02.2014 Gazette 2014/06)
(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: 01.08.2012 US 201261678335 P

(71) Applicant: Celanese Acetate LLC
Irving, TX 75039 (US)

(72) Inventors:
  • ROBERTSON, Raymond
    Blacksburg, VA 24060 (US)
  • BIESMANS, Davy
    B-3620 Lanaken (BE)
  • FLOTTEN, Charles, O.
    Fort Mill, SC 29715 (US)

(74) Representative: Hupfer, Bernd 
Celanese GmbH IP-EU Am Unisys-Park 1
DE-65843 Sulzbach (Taunus)
DE-65843 Sulzbach (Taunus) (DE)

   


(54) METHODS OF PRODUCING FILTERS AND FILTER RODS COMPRISING POROUS MASSES AND ARTICLES RELATING THERETO