(19)
(11) EP 2 647 300 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
07.01.2015 Bulletin 2015/02

(43) Date of publication A2:
09.10.2013 Bulletin 2013/41

(21) Application number: 13170124.5

(22) Date of filing: 27.04.2011
(51) International Patent Classification (IPC): 
A24F 47/00(2006.01)
 A24B 15/16(2006.01)
(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: 06.05.2010 US 775278
06.05.2010 US 775130
19.08.2010 US 859494

(62) Application number of the earlier application in accordance with Art. 76 EPC:
11718610.6 / 2566358

(71) Applicant: R.J. REYNOLDS TOBACCO COMPANY
Winston-Salem North Carolina 27102-1487 (US)

(72) Inventors:
  • Conner, Billy Tyrone
    Clemmons, NC North Carolina 27102 (US)
  • Sebastian, Andries Don
    Clemmons, NC North Carolina 27012 (US)
  • Crooks, Evon Llewellyn
    Mocksville, NC North Carolina 27028 (US)
  • Thomas, Timothy Frederick
    High Point, NC North Carolina 27265 (US)
  • Stone, James Richard
    Advance, NC North Carolina 27006 (US)
  • Banerjee, Chandra K.
    Clemmons, NC North Carolina 27102 (US)
  • Chang, Yi-Ping
    Greensboro, NC North Carolina 27410 (US)

(74) Representative: Hoeger, Stellrecht & Partner Patentanwälte 
Uhlandstrasse 14c
70182 Stuttgart
70182 Stuttgart (DE)

   


(54) Segmented smoking article


(57) A cigarette comprising:
a lighting end (14) and a mouth end (18);
a mouth end piece segment (65) disposed at the mouth end;
an aerosol-generation system disposed between the smokable segment and the mouth end piece segment, the aerosol-generation system including
(i) a heat generation segment (35) immediately adjacent the lighting end, said heat generation segment having a length and including a heat source (40) and an insulation layer (42) of flame-retardant material, the insulation layer comprising:
about 40 to about 50 percent, by weight, flue-cured tobacco lamina,
about 20 to about 25 percent, by weight, water-soluble flue-cured tobacco stems extract, and
about 20 to about 25 percent, by weight, wood pulp,
wherein the insulation layer comprises a treatment of ammonium chloride and is configured with an inner-facing geometry configured to complementarily engage and longitudinally retain the heat source within the heat generation segment; and

(ii) an aerosol-generating segment (51) incorporating aerosol-forming material (55), said aerosol-generating segment having a length and being disposed between, but physically separate from, each of the heat generation segment and the mouth end;

a piece of outer wrapping material (64) oriented to provide an overwrap (i) around the aerosol-generating segment for at least a portion of its length, and (ii) around the heat generation segment for the length of that segment; those segments being connected together by the overwrap to provide a cigarette rod; and
the mouth end piece segment being connected to the cigarette rod using tipping material (78).







Search report















Search report