WO2010118122A1 - Dispositif et procédé de filtrage de fumée - Google Patents

Dispositif et procédé de filtrage de fumée Download PDF

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Publication number
WO2010118122A1
WO2010118122A1 PCT/US2010/030221 US2010030221W WO2010118122A1 WO 2010118122 A1 WO2010118122 A1 WO 2010118122A1 US 2010030221 W US2010030221 W US 2010030221W WO 2010118122 A1 WO2010118122 A1 WO 2010118122A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
smoke
cigarette
pdms
smoking article
Prior art date
Application number
PCT/US2010/030221
Other languages
English (en)
Inventor
Akshay Navaladi
Bradley Kaanta
Aditya Jain
Original Assignee
Oranjeway, Inc.
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 Oranjeway, Inc. filed Critical Oranjeway, Inc.
Publication of WO2010118122A1 publication Critical patent/WO2010118122A1/fr

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
    • A24D3/14—Use of materials for tobacco smoke filters of organic materials as additive

Definitions

  • the present invention is directed to a filter for removing toxic materials from a gas stream.
  • the filter comprises polydimethyl siloxane (PDMS) or a derivative thereof, wherein the filter is capable of substantially removing at least one toxic gas component from the gas stream.
  • PDMS polydimethyl siloxane
  • the present invention is also directed to smoking articles comprising a filter described herein.
  • FIG. 1 depicts a cigarette having a tobacco rod and a filter of the present invention.
  • FIG. 2 depicts a filter of the present invention having PDMS strips in a center cavity of cellulose acetate filter material.
  • FIG. 3 is depicts a specific filter of the present invention that is used in testing the efficiency of the filter for removing toxic gas components from a cigarette mainstream smoke.
  • FIG. 4 are graphs showing quantity of pollutants in cigarette mainstream smoke: a) filtered through the filter of the present invention; and b) unfiltered (i.e., filtered through traditional filter material, cellulose acetate).
  • FIG. 5 is a graph showing quantity of specific toxic components in cigarette mainstream smoke.
  • FIG. 6 depicts the apparatus used for testing the efficiency of the filter of the present invention for removing toxic gas components from cigarette mainstream smoke.
  • polydimethyl siloxane or a derivate thereof can efficiently remove toxic gas components from a gas stream.
  • the filter of the present invention can remove various toxic gas component from cigarette smoke without reducing the level of nicotine.
  • the present invention is directed to a filter for removing toxic gas components from a gas stream, wherein the filter comprises PDMS or a derivative thereof.
  • the filter of the present invention is capable of substantially removing at least one gas component from the gas stream.
  • the gas stream is tobacco mainstream smoke.
  • the gas stream is mainstream smoke from a smoking article.
  • substantially removing at least one toxic gas component means removing at least 50% of the gas component from the gas stream.
  • the filter of the present invention is capable of removing at least 50%, 60%, 70%, 80%, 90%, 95%, 96%, 97%, 98%, 99%, 99.9%, or 100% by weight of at least one toxic gas component from the gas stream.
  • tobacco "mainstream" smoke includes the mixture of gases, vapors and particulates passing through a smoking mixture and issuing through the filter end, i.e., the smoke issuing or drawn from the mouth end of a smoking article for example during smoking of a cigarette.
  • the filter of the present invention is capable of substantially removing at least one toxic gas component from a gas stream, wherein the gas component is selected from the group consisting of acetaldehyde, acetone, acrolein, acrylonitrile, 1-aminonaphthalene, 2-aminonaphthalene, 3-aminobiphenyl, 4-aminobiphenyl, ammonia, benzene, benzo(a)pyrene, 1,3 -butadiene, butyraldehyde, carbon monoxide, catechol, chromium, m-cresol, p-cresol, o-cresol, crotonaldehyde, formaldehyde, hydrogen cyanide, hydroquinone, isoprene, metals (for example, nickel, selenium, arsenic, cadmium, lead, mercury), methyl ethyl ketone, nicotine, nitric oxide, nitrogen oxides, phenol, propionaldehyde,
  • the toxic gas component is selected from the group consisting of benzene, benzo(a)pyrene, toluene, formaldehyde, 1 -aminonaphthalene, 2-aminonaphthalene, phenol, acetaldehyde, pyridine and arsenic.
  • PDMS or a derivative thereof is incorporated into a filter.
  • Any suitable filter design may be used, which includes, but is not limited to, a mono filter, a dual filter, a triple filter, a cavity filter, a recessed filter or a free-flow filter.
  • PDMS or a derivative thereof is incorporated into a mono filter.
  • Mono filters typically contain a variety of cellulose acetate tow or cellulose paper materials. Pure mono cellulose filters or paper filters offer good tar and nicotine retention, and are biodegradable.
  • PDMS or a derivative thereof is incorporated into a cavity of a mono filter. Particularly, PDMS or a derivative thereof is incorporated into a center cavity of a mono filter.
  • PDMS or a derivative thereof can be mixed with cellulose acetate in the mono filter.
  • the cellulose acetate tow or cellulose paper in the mono filter can be coated with PDMS or a derivative thereof.
  • the filter of the present invention is depicted in FIG. 2.
  • FIG. 2 depicts a filter 20 having cellulose acetate filter material 21 wrapped within a filter paper 22.
  • the filter 20 also have PDMS strips 23 located in the cylindrical- shaped center cavity of the cellulose acetate filter material 21.
  • PDMS or a derivative thereof is incorporated into a dual filter.
  • Dual filters can comprise a cellulose acetate mouth side and a pure cellulose segment or cellulose acetate segment on the smoking material or tobacco side. The length and pressure drop of the two segments of the dual filter can be adjusted to provide optimal adsorption, while maintaining acceptable draw resistance.
  • PDMS or a derivative thereof can be incorporated into cellulose acetate segment at either the mouth side or the tobacco side.
  • PDMS or a derivative thereof is incorporated into a cavity of cellulose acetate segment.
  • PDMS or a derivative thereof can be mixed with cellulose acetate to form the filter segment at the mouth side and/or the tobacco side,
  • PDMS or a derivative thereof is incorporated into a triple filter.
  • Triple filters may have mouth and tobacco side segments, while the middle segment comprises PDMS or a derivative thereof.
  • PDMS or a derivative thereof is incorporated into a cavity filter.
  • Cavity filters have two segments, for example, acetate-acetate, acetate-paper or paper-paper, separated by a cavity containing PDMS or a derivative thereof.
  • PDMS or a derivative thereof is incorporated into a recessed filter.
  • Recessed filters have an open cavity on the mouth side and contain the PDMS or a derivative incorporated into the plug material.
  • PDMS or a derivative thereof is incorporated into the filter as a shaped article, particles or powder.
  • PDMS or a derivate thereof is shaped as strips.
  • fibers of PDMS or a derivative thereof is used in the filter of the present invention.
  • the filter of the present invention is a component of a smoking article.
  • the filter of the present invention is directly connected with the tobacco rod at one end of the tobacco rod.
  • the filter of the present invention is not a component of a smoking article (i.e., a stand alone filter that can be used in conjunction with a smoking article).
  • the filter of the present invention further comprises cellulose acetate tow, cellulose paper, mono cellulose, mono acetate or a combination thereof.
  • the filters of the present invention maybe optionally ventilated, and/or comprise additional sorbents (such as charcoal, activated carbon and/or magnesium silicate), catalysts, flavorants or other additives for the cigarette filter.
  • the present invention is directed to a smoking article comprising a filter described herein.
  • smoking articles include, but are not limited to, a cigarette, a pipe, a cigar and a non-traditional cigarette.
  • Non-traditional cigarettes include, for example, cigarettes for electrical smoking systems as described in U.S. Patent Nos. 6,026,820; 5,988,176; 5,915,387; 5,692,526; 5,692,525; 5,666,976; and 5,499,636.
  • the smoking article is a cigarette.
  • a PDMS derivative is a polymer represented by the following structural formula:
  • R, Ri and R 2 are each independently alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, aryl or heteroaryl; and n is 0 or an integer from 1 to 10,000.
  • Exemplary PDMS derivatives include, but are not limited to, polydiphenylsiloxane, polydibenzylsiloxane, polydiethylenesiloxane, polyethylmethylsiloxane, hexamethyldisiloxane, hexamthylcyclotrisiloxane and the like.
  • Alkyl means a saturated aliphatic branched or straight- chain monovalent hydrocarbon radical having the specified number of carbon atoms.
  • (C 1 -C 6 )alkyl means a radical having from 1-6 carbon atoms in a linear or branched arrangement.
  • (C 1 -C 6 )alkyl includes methyl, ethyl, propyl, butyl, pentyl, and hexyl. Also included within the definition of "alkyl” are those alkyl groups that are optionally substituted. Suitable subsitutions include, but are not limited to, -halogen, -OH, -CN, alkoxy, amino, cycloalkyl, aryl, heteroaryl, or aryloxy.
  • Alkenyl means branched or straight-chain monovalent hydrocarbon radical containing at least one double bond and having specified number of carbon atoms. Alkenyl may be mono or polyunsaturated, and may exist in the E or Z onfiguration. For example, "(C 2 -C 6 )alkenyl” means a radical having from 2-6 carbon atoms in a linear or branched arrangement.
  • Alkynyl means branched or straight-chain monovalent hydrocarbon radical containing at least one triple bond and having specified number of carbon atoms.
  • (C 2 -C 6 )alkynyl means a radical having from 2-6 carbon atoms in a linear or branched arrangement.
  • Cycloalkyl means a saturated aliphatic cyclic hydrocarbon radical having the specified number of carbon atoms. It can be monocyclic, bicyclic, polycyclic (e.g., tricyclic), fused, bridged, or spire
  • monocyclic (C 3 - Cg)cycloalkyl means a radical having from 3-8 carbon atoms arranged in a monocyclic ring.
  • Monocyclic (C 3 -C 8 )cycloalkyl includes but is not limited to cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl and cyclooctane.
  • Heterocycloalkyl means a saturated 4-12 membered ring containing 1 to 4 heteroatoms, which may be the same or different, selected from N, O or S and optionally containing one or more double bonds. It can be monocyclic, bicyclic, tricyclic, fused, bridged, or spiro.
  • Aryl means an aromatic monocyclic, or polycyclic hydrocarbon ring system.
  • Aryl systems include, but limited to, phenyl, naphthalenyl, fluorenyl, indenyl, azulenyl, and anthracenyl.
  • ' ⁇ eteroaryl means a monovalent heteroaromatic monocyclic or polycylic ring radical.
  • Heteroaryl rings are 5- and 6-membered aromatic heterocyclic rings containing 1 to 4 heteroatoms independently selected from N, O, and S, and include, but are not limited to furan, thiophene, pyrrole, imidazole, pyrazole, oxazole, isoxazole, thiazole, isothiazole, 1,2,3-triazole, 1,2,4-triazole, 1,3,4-oxadiazole, 1,2,5- thiadiazole, 1,2,5-thiadiazole 1 -oxide, 1,2,5-thiadiazole 1,1 -dioxide, 1,3,4- thiadiazole, pyridine, pyridine-N-oxide, pyrazine, pyrimidine, pyridazine, 1 ,2,4- triazine, 1,3,5-triazine, and tetrazole.
  • Bicyclic heteroaryl rings are bicyclo[4.4.0] and bicydo[4,3.0] fused ring systems containing 1 to 4 heteroatoms independently selected from N, O, and S, and include indolizine, indole, isoindole, benzo[b]furan, benzo[b]thiophene, indazole, benzimidazole, benzthiazole, purine, 4H-quinolizine, quinoline, isoquinoline, cinnoline, phthalazine, quinazoline, quinoxaline, 1 ,8- naphthyridine, and pteridine.
  • the example described below compares the efficacy for removing toxic gas components between a filter of the present invention and a traditional filter.
  • the "unfiltered cigarette” described herein refers to a cigarette that contains a traditional filter material, cellulose acetate plug.
  • the "filtered cigarette” described herein refers to a cigarette that contains the filter of the present invention, particular as depicted in FIG. 3, in conjunction with the cellulose acetate plug.
  • the entire plastic tube (with the cigarette on one end and the pipette tip on the other) was inserted through the spout of the vacuum cleaner such that the pipette tip extended into the cyclohexane solvent inside the vial contained within the vacuum cleaner and the filtered cigarette hung outside the vacuum cleaner.
  • the apparatus for collecting the smoke sample is depicted in FIG. 6.
  • vial f1 was removed, capped and then substituted with vial f2 and subsequently f3, each vial containing smoke from S filtered cigarettes dissolved in cyclohexane.
  • a seventh vial with 5ml of cyclohexane was designated as control. With the vial positioned inside the vacuum cleaner, but with no cigarette attached to the end of the plastic tube, the vacuum was engaged with all other conditions remaining the same. The only difference between the control and the preceding six vials was the absence of a cigarette attached to the plastic tube in order to gauge the amount of pollutants present in the experimental setup alone.
  • composition of the smoke collected within each of the six smoke containing vials was analyzed on a GC-MS machine (Agilent 6890N GC, Detector - Agilent 5973 MSD, Phenomenex Phase ZB-5, 30M (L) x 0.25 mm (i.d.) x 0.25 micron, Carrier gas - Helium) at Boston University's Chemical Instrumentation Center.
  • the control and blank solutions were analyzed as well. Settings and experimental conditions are described in Table 1.
  • the filter of the present invention is significantly more efficient in removing various toxic gas components than the traditional filter, without reducing the amount of nicotine.

Abstract

La présente invention porte sur un filtre comprenant du polydiméthyl siloxane ou un dérivé correspondant. L'invention porte également sur un article à fumer comprenant le filtre selon la présente invention. Le filtre selon la présente invention peut retirer des composants gazeux toxiques d'une fumée de tabac principale, sans réduire le niveau de nicotine.
PCT/US2010/030221 2009-04-08 2010-04-07 Dispositif et procédé de filtrage de fumée WO2010118122A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US16756709P 2009-04-08 2009-04-08
US61/167,567 2009-04-08

Publications (1)

Publication Number Publication Date
WO2010118122A1 true WO2010118122A1 (fr) 2010-10-14

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Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102423119A (zh) * 2011-09-29 2012-04-25 云南烟草科学研究院 一种提高卷烟烟气水分的添加剂及其应用
USD825102S1 (en) 2016-07-28 2018-08-07 Juul Labs, Inc. Vaporizer device with cartridge
US10045567B2 (en) 2013-12-23 2018-08-14 Juul Labs, Inc. Vaporization device systems and methods
US10045568B2 (en) 2013-12-23 2018-08-14 Juul Labs, Inc. Vaporization device systems and methods
US10058130B2 (en) 2013-12-23 2018-08-28 Juul Labs, Inc. Cartridge for use with a vaporizer device
US10076139B2 (en) 2013-12-23 2018-09-18 Juul Labs, Inc. Vaporizer apparatus
US10104915B2 (en) 2013-12-23 2018-10-23 Juul Labs, Inc. Securely attaching cartridges for vaporizer devices
US10111470B2 (en) 2013-12-23 2018-10-30 Juul Labs, Inc. Vaporizer apparatus
USD836541S1 (en) 2016-06-23 2018-12-25 Pax Labs, Inc. Charging device
USD842536S1 (en) 2016-07-28 2019-03-05 Juul Labs, Inc. Vaporizer cartridge
US10244793B2 (en) 2005-07-19 2019-04-02 Juul Labs, Inc. Devices for vaporization of a substance
US10279934B2 (en) 2013-03-15 2019-05-07 Juul Labs, Inc. Fillable vaporizer cartridge and method of filling
USD848057S1 (en) 2016-06-23 2019-05-07 Pax Labs, Inc. Lid for a vaporizer
USD849996S1 (en) 2016-06-16 2019-05-28 Pax Labs, Inc. Vaporizer cartridge
USD851830S1 (en) 2016-06-23 2019-06-18 Pax Labs, Inc. Combined vaporizer tamp and pick tool
US10405582B2 (en) 2016-03-10 2019-09-10 Pax Labs, Inc. Vaporization device with lip sensing
US10512282B2 (en) 2014-12-05 2019-12-24 Juul Labs, Inc. Calibrated dose control
US10517530B2 (en) 2012-08-28 2019-12-31 Juul Labs, Inc. Methods and devices for delivering and monitoring of tobacco, nicotine, or other substances
USD887632S1 (en) 2017-09-14 2020-06-16 Pax Labs, Inc. Vaporizer cartridge
US10865001B2 (en) 2016-02-11 2020-12-15 Juul Labs, Inc. Fillable vaporizer cartridge and method of filling
US20220240566A1 (en) * 2019-06-10 2022-08-04 Philip Morris Products S.A. Stable wrapper for aerosol generating article

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US3828801A (en) * 1969-12-29 1974-08-13 Estin H Filter for removing polynuclear aromatic hydrocarbons from tobacco smoke
US4492239A (en) * 1982-02-10 1985-01-08 Francesco Cornelio Smoking blend effective to discourage the bad habit of smoking and cigarettes or the like obtained thereby

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3828801A (en) * 1969-12-29 1974-08-13 Estin H Filter for removing polynuclear aromatic hydrocarbons from tobacco smoke
US4492239A (en) * 1982-02-10 1985-01-08 Francesco Cornelio Smoking blend effective to discourage the bad habit of smoking and cigarettes or the like obtained thereby

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10244793B2 (en) 2005-07-19 2019-04-02 Juul Labs, Inc. Devices for vaporization of a substance
CN102423119A (zh) * 2011-09-29 2012-04-25 云南烟草科学研究院 一种提高卷烟烟气水分的添加剂及其应用
US10517530B2 (en) 2012-08-28 2019-12-31 Juul Labs, Inc. Methods and devices for delivering and monitoring of tobacco, nicotine, or other substances
US10638792B2 (en) 2013-03-15 2020-05-05 Juul Labs, Inc. Securely attaching cartridges for vaporizer devices
US10279934B2 (en) 2013-03-15 2019-05-07 Juul Labs, Inc. Fillable vaporizer cartridge and method of filling
US10264823B2 (en) 2013-12-23 2019-04-23 Juul Labs, Inc. Vaporization device systems and methods
US11752283B2 (en) 2013-12-23 2023-09-12 Juul Labs, Inc. Vaporization device systems and methods
US10070669B2 (en) 2013-12-23 2018-09-11 Juul Labs, Inc. Cartridge for use with a vaporizer device
US10076139B2 (en) 2013-12-23 2018-09-18 Juul Labs, Inc. Vaporizer apparatus
US10104915B2 (en) 2013-12-23 2018-10-23 Juul Labs, Inc. Securely attaching cartridges for vaporizer devices
US10111470B2 (en) 2013-12-23 2018-10-30 Juul Labs, Inc. Vaporizer apparatus
US10117466B2 (en) 2013-12-23 2018-11-06 Juul Labs, Inc. Vaporization device systems and methods
US10117465B2 (en) 2013-12-23 2018-11-06 Juul Labs, Inc. Vaporization device systems and methods
US10058129B2 (en) 2013-12-23 2018-08-28 Juul Labs, Inc. Vaporization device systems and methods
US10159282B2 (en) 2013-12-23 2018-12-25 Juul Labs, Inc. Cartridge for use with a vaporizer device
US10201190B2 (en) 2013-12-23 2019-02-12 Juul Labs, Inc. Cartridge for use with a vaporizer device
US10701975B2 (en) 2013-12-23 2020-07-07 Juul Labs, Inc. Vaporization device systems and methods
US10058130B2 (en) 2013-12-23 2018-08-28 Juul Labs, Inc. Cartridge for use with a vaporizer device
US10058124B2 (en) 2013-12-23 2018-08-28 Juul Labs, Inc. Vaporization device systems and methods
US10045568B2 (en) 2013-12-23 2018-08-14 Juul Labs, Inc. Vaporization device systems and methods
US10667560B2 (en) 2013-12-23 2020-06-02 Juul Labs, Inc. Vaporizer apparatus
US10912331B2 (en) 2013-12-23 2021-02-09 Juul Labs, Inc. Vaporization device systems and methods
US10045567B2 (en) 2013-12-23 2018-08-14 Juul Labs, Inc. Vaporization device systems and methods
US10512282B2 (en) 2014-12-05 2019-12-24 Juul Labs, Inc. Calibrated dose control
US10865001B2 (en) 2016-02-11 2020-12-15 Juul Labs, Inc. Fillable vaporizer cartridge and method of filling
US10405582B2 (en) 2016-03-10 2019-09-10 Pax Labs, Inc. Vaporization device with lip sensing
USD913583S1 (en) 2016-06-16 2021-03-16 Pax Labs, Inc. Vaporizer device
USD849996S1 (en) 2016-06-16 2019-05-28 Pax Labs, Inc. Vaporizer cartridge
USD929036S1 (en) 2016-06-16 2021-08-24 Pax Labs, Inc. Vaporizer cartridge and device assembly
USD836541S1 (en) 2016-06-23 2018-12-25 Pax Labs, Inc. Charging device
USD851830S1 (en) 2016-06-23 2019-06-18 Pax Labs, Inc. Combined vaporizer tamp and pick tool
USD848057S1 (en) 2016-06-23 2019-05-07 Pax Labs, Inc. Lid for a vaporizer
USD825102S1 (en) 2016-07-28 2018-08-07 Juul Labs, Inc. Vaporizer device with cartridge
USD842536S1 (en) 2016-07-28 2019-03-05 Juul Labs, Inc. Vaporizer cartridge
USD887632S1 (en) 2017-09-14 2020-06-16 Pax Labs, Inc. Vaporizer cartridge
US20220240566A1 (en) * 2019-06-10 2022-08-04 Philip Morris Products S.A. Stable wrapper for aerosol generating article

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