(19)
(11) EP 2 629 633 A1

(12)

(43) Date of publication:
28.08.2013 Bulletin 2013/35

(21) Application number: 11834774.9

(22) Date of filing: 15.07.2011
(51) International Patent Classification (IPC): 
A24D 3/06(2006.01)
(86) International application number:
PCT/US2011/044142
(87) International publication number:
WO 2012/054111 (26.04.2012 Gazette 2012/17)
(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

(30) Priority: 07.07.2011 WO PCT/US2011/043269
06.10.2010 US 390211 P
06.10.2010 US 390213 P
30.12.2010 US 981909
03.01.2011 WO PCT/US2011/020013
01.07.2011 US 201161504023 P

(60) Divisional application:
13168042.3

(71) Applicant: Celanese Acetate LLC
Dallas, TX 75234 (US)

(72) Inventors:
  • BURKE, Peter
    Dodleston Chester CH4 9NR (GB)
  • GUSIK, Meinhard
    46147 Oberhausen (DE)
  • HUFEN, Julia
    47495 Rheinberg (DE)
  • JIMENEZ, Luis
    Blacksburg VA 24060 (US)
  • ROBERTSON, Raymond
    Blacksburg VA 24060 (US)
  • SRINIVASAN, Ramesh
    Cincinnati OH 45244 (US)

(74) Representative: Lahrtz, Fritz 
Isenbruck Bösl Hörschler LLP Patentanwälte Prinzregentenstrasse 68
81675 München
81675 München (DE)

   


(54) SMOKE FILTERS FOR SMOKING DEVICES WITH POROUS MASSES HAVING A CARBON PARTICLE LOADING AND AN ENCAPSULATED PRESSURE DROP