BR0211853A - Cigarette filter - Google Patents

Cigarette filter

Info

Publication number
BR0211853A
BR0211853A BR0211853-0A BR0211853A BR0211853A BR 0211853 A BR0211853 A BR 0211853A BR 0211853 A BR0211853 A BR 0211853A BR 0211853 A BR0211853 A BR 0211853A
Authority
BR
Brazil
Prior art keywords
section
filter
adsorbent material
cigarette
general
Prior art date
Application number
BR0211853-0A
Other languages
Portuguese (pt)
Other versions
BR0211853B1 (en
Inventor
James N Figlar
Brian E Tucker
F Kelley St Charles
Original Assignee
Brown & Williamson Tobacco
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Brown & Williamson Tobacco filed Critical Brown & Williamson Tobacco
Publication of BR0211853A publication Critical patent/BR0211853A/en
Publication of BR0211853B1 publication Critical patent/BR0211853B1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/16—Use of materials for tobacco smoke filters of inorganic materials
    • A24D3/163—Carbon
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/12—Use of materials for tobacco smoke filters of ion exchange materials
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/16—Use of materials for tobacco smoke filters of inorganic materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

"FILTRO DE CIGARRO". Um filtro de cigarro que inclui um filtro de seção múltipla o qual reduz o nível de predeterminados constituintes da fumaça. O filtro (130) consiste de um plugue de filtro fibroso (132) localizado na extremidade de boca do cigarro, uma seção (136) contendo um material adsorvente seletivo, e uma seção (134) contendo um material adsorvente geral. O material adsorvente seletivo, tal como uma matriz de resina de fenol-formaldeido funcionalizada na superfície com principalmente grupos funcionais de amina primária e secundária, remove constituintes específicos da fumaça da fumaça de fumo. O material adsorvente geral, tal como carvão vegetal ativado, é preferivelmente capaz de adsorver uma faixa de compostos químicos sem um alto grau de especificidade. Estruturalmente, o plugue de filtro fibroso, a seção de adsorvente seletivo, e a seção de adsorvente geral são co-axialmente alinhados em série."CIGARETTE FILTER". A cigarette filter that includes a multi-section filter which reduces the level of predetermined smoke constituents. The filter (130) consists of a fibrous filter plug (132) located at the mouth end of the cigarette, a section (136) containing a selective adsorbent material, and a section (134) containing a general adsorbent material. Selective adsorbent material, such as a surface-functionalized phenol-formaldehyde resin matrix with mainly primary and secondary amine functional groups, removes smoke-specific smoke constituents. The general adsorbent material, such as activated charcoal, is preferably capable of adsorbing a range of chemical compounds without a high degree of specificity. Structurally, the fibrous filter plug, the selective adsorbent section, and the general adsorbent section are co-axially aligned in series.

BRPI0211853-0A 2001-08-01 2002-07-30 Cigarette Filter. BR0211853B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US30943501P 2001-08-01 2001-08-01
US30938801P 2001-08-01 2001-08-01
US10/011,841 US20030066539A1 (en) 2001-08-01 2001-10-30 Cigarette Filter
PCT/US2002/024240 WO2003015544A1 (en) 2001-08-01 2002-07-30 Cigarette filter

Publications (2)

Publication Number Publication Date
BR0211853A true BR0211853A (en) 2004-09-08
BR0211853B1 BR0211853B1 (en) 2011-11-29

Family

ID=27359516

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0211853-0A BR0211853B1 (en) 2001-08-01 2002-07-30 Cigarette Filter.

Country Status (27)

Country Link
US (2) US20030066539A1 (en)
EP (1) EP1411784B8 (en)
JP (1) JP4028483B2 (en)
KR (1) KR100838207B1 (en)
CN (1) CN100496312C (en)
AP (1) AP2134A (en)
AR (1) AR034967A1 (en)
AT (1) ATE527901T1 (en)
AU (1) AU2002322811B2 (en)
BR (1) BR0211853B1 (en)
CA (1) CA2454820C (en)
EA (1) EA005323B1 (en)
EG (1) EG23137A (en)
ES (1) ES2375106T3 (en)
HR (1) HRP20040166B1 (en)
HU (1) HUP0401565A3 (en)
IL (2) IL160150A0 (en)
MX (1) MXPA04001044A (en)
MY (1) MY128508A (en)
NO (1) NO20040452L (en)
NZ (1) NZ531256A (en)
OA (1) OA12647A (en)
PL (1) PL200589B1 (en)
RS (1) RS51032B (en)
TW (1) TWI239237B (en)
WO (1) WO2003015544A1 (en)
ZA (1) ZA200401077B (en)

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Also Published As

Publication number Publication date
HRP20040166B1 (en) 2013-11-22
CA2454820A1 (en) 2003-02-27
EP1411784B1 (en) 2011-10-12
EP1411784A1 (en) 2004-04-28
ZA200401077B (en) 2005-06-29
BR0211853B1 (en) 2011-11-29
TWI239237B (en) 2005-09-11
NO20040452L (en) 2004-03-29
EA200400191A1 (en) 2004-06-24
AP2134A (en) 2010-07-13
US20030066539A1 (en) 2003-04-10
EP1411784B8 (en) 2012-03-07
AP2004002985A0 (en) 2004-03-31
AR034967A1 (en) 2004-03-24
JP2004538016A (en) 2004-12-24
CN1553777A (en) 2004-12-08
AU2002322811B2 (en) 2006-03-09
PL368136A1 (en) 2005-03-21
KR100838207B1 (en) 2008-06-13
IL160150A (en) 2008-03-20
HUP0401565A2 (en) 2004-11-29
HRP20040166A2 (en) 2004-08-31
EA005323B1 (en) 2005-02-24
HUP0401565A3 (en) 2012-09-28
IL160150A0 (en) 2004-07-25
US20040237984A1 (en) 2004-12-02
OA12647A (en) 2006-06-16
CN100496312C (en) 2009-06-10
JP4028483B2 (en) 2007-12-26
CA2454820C (en) 2007-06-05
KR20040026699A (en) 2004-03-31
WO2003015544A1 (en) 2003-02-27
RS11204A (en) 2007-02-05
MY128508A (en) 2007-02-28
EG23137A (en) 2004-04-28
MXPA04001044A (en) 2004-06-22
ATE527901T1 (en) 2011-10-15
NZ531256A (en) 2005-07-29
RS51032B (en) 2010-10-31
ES2375106T3 (en) 2012-02-24
PL200589B1 (en) 2009-01-30

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Legal Events

Date Code Title Description
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 30/07/2002, OBSERVADAS AS CONDICOES LEGAIS.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE A 17A ANUIDADE.

B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2525 DE 28-05-2019 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.