US20150296878A1 - Filter for a smoking article - Google Patents

Filter for a smoking article Download PDF

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Publication number
US20150296878A1
US20150296878A1 US14/440,040 US201314440040A US2015296878A1 US 20150296878 A1 US20150296878 A1 US 20150296878A1 US 201314440040 A US201314440040 A US 201314440040A US 2015296878 A1 US2015296878 A1 US 2015296878A1
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US
United States
Prior art keywords
filter
section
filter section
smoking article
axial region
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
US14/440,040
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English (en)
Inventor
Lance Mucalo
Nicholas Walpole
Matthew Knight
John Richardson
Santiago Morales
Peter Wan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nicoventures Trading Ltd
Original Assignee
British American Tobacco Investments Ltd
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=47358905&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=US20150296878(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by British American Tobacco Investments Ltd filed Critical British American Tobacco Investments Ltd
Assigned to BRITISH AMERICAN TOBACCO (INVESTMENTS) LIMITED reassignment BRITISH AMERICAN TOBACCO (INVESTMENTS) LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KNIGHT, MATTHEW, MORALES, Santiago, MUCALO, Lance, RICHARDSON, JOHN, WALPOLE, Nicholas, WAN, PETER
Publication of US20150296878A1 publication Critical patent/US20150296878A1/en
Assigned to Nicoventures Trading Limited reassignment Nicoventures Trading Limited ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BRITISH AMERICAN TOBACCO (INVESTMENTS) LIMITED
Abandoned legal-status Critical Current

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    • 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
    • A24D3/061—Use of materials for tobacco smoke filters containing additives entrapped within capsules, sponge-like material or the like, for further release upon smoking
    • 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
    • A24D1/00—Cigars; Cigarettes
    • A24D1/002—Cigars; Cigarettes with additives, e.g. for flavouring
    • 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
    • A24D1/00—Cigars; Cigarettes
    • A24D1/02—Cigars; Cigarettes with special covers
    • 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
    • A24D3/04—Tobacco smoke filters characterised by their shape or structure
    • 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
    • A24D3/04—Tobacco smoke filters characterised by their shape or structure
    • A24D3/048—Tobacco smoke filters characterised by their shape or structure containing additives

Definitions

  • the invention relates to a filter for a smoking article and to a smoking article including a filter.
  • Known smoking article filters such as cigarette filters, generally comprise a continuous tow of filamentary cellulose acetate.
  • the cellulose acetate is gathered together to form a rod which is cut to form individual filter sections.
  • the smoking article filter may be made of one segment of filter rod, or may be made from multiple segments, with or without a cavity or spaces between them.
  • a filter for a smoking article comprising a first filter section comprising filter material and a smoke modifying additive disposed in an axial region thereof and a second filter section connected to said first filter section, the second filter section comprising filter material and at least one channel located in an axial region thereof for directing smoke, in use, through the axial region of the first filter section in which the smoke modifying additive is disposed.
  • the first and second filter sections can be discrete filter sections and/or the smoke modifying additive can be disposed only in said axial region of the filter material of the first filter section or in a greater concentration in said axial region than in non-axial regions of the filter material of the first filter section.
  • the at least one channel can have a lower resistance to smoke passing through it than other regions of the filter material of the first filter section.
  • the channel can be a hollow passageway through the second filter section.
  • the second filter section can be connected to said first filter section so as to make the second filter section immediately either downstream or upstream of said first filter section when incorporated into a smoking article.
  • the axial region of said filter material of said first and/or second filter sections can have a radius of from 1 mm to 4 mm and/or can be centred on the axis of the smoking article.
  • the first filter section can comprise continuous filter material having the smoke modifying additive disposed in the axial region thereof.
  • the second filter section can comprise a tubular filter section.
  • the tubular filter section can be formed from a fibrous filter material.
  • the smoke modifying additive can be disposed in a greater concentration in said axial region than in non-axial regions of the filter material of the first filter section.
  • the smoke modifying additive can be disposed only in said axial region of the filter material of the first filter section.
  • the second filter section can be configured, in use, to direct a greater portion of smoke through the axial region of the first filter section than through non-axial regions of the first filter section.
  • the smoke modifying additive can comprise an encapsulated additive.
  • the smoke modifying additive can be contained within a capsule which is located within the first filter section at a position other than a longitudinally central position within the first filter section.
  • the capsule can be located within the first filter section at a position from 1 mm to 10 mm from a longitudinally central position within the first filter section.
  • the smoke modifying additive can be disposed on a carrier material.
  • the carrier material can comprise a thread.
  • the filter can further comprise a third filter section connected to said first filter section so as to make it upstream of said first filter section when incorporated into a smoking article.
  • the third filter section can be a discrete filter section.
  • the third filter section can comprise fibrous filter material and a granular adsorbent material.
  • the granular adsorbent material can be disposed in a circumferential region of the third filter section, dispersed within the filter material of the third filter section, or comprises some granular adsorbent material disposed in a circumferential region of the third filter section and some granular adsorbent material dispersed within the third filter section.
  • a smoking article comprising a filter as defined above.
  • the second filter section can be arranged immediately downstream of said first filter section and at the mouth-end of the smoking article.
  • a smoking article comprising a first section comprising an aerosol generating material and an aerosol modifying additive disposed in an axial region thereof, and a second section comprising a filter having at least one channel located in an axial region thereof for directing the aerosol generated by the aerosol generating material, in use, through the axial region of the first section.
  • the second section in use, can direct a greater portion of smoke through the axial region of the first section than through non-axial regions of the first section.
  • FIG. 2 is a schematic illustration of a smoking article having a filter with a tubular filter section and a filter section including a thread carrying an additive;
  • FIG. 3 is a schematic illustration of a smoking article having a filter with a tubular filter section and a filter section including an encapsulated additive in the form of a plurality of frangible capsules;
  • FIG. 4 is a schematic illustration of a smoking article having a filter similar to that described with reference to FIG. 1 but also including a further filter section having an adsorbent dispersed in filter material;
  • Smoking articles such as cigarettes and their formats are often named according to the cigarette length: “regular” (typically in the range 68-75 mm, e.g. from about 68 mm to about 72 mm), “short” or “mini” (68 mm or less), “king-size” (typically in the range 75-91 mm, e.g. from about 79 mm to about 88 mm), “long” or “super-king” (typically in the range 91-105 mm, e.g. from about 94 mm to about 101 mm) and “ultra-long” (typically in the range from about 110 mm to about 121 mm).
  • a cigarette in a king-size, super-slim format will, for example, have a length of about 83 mm and a circumference of about 17 mm.
  • Cigarettes in the regular, king-size format are preferred by many customers, namely with a circumference of from 23 to 25 mm and an overall length of from 75 to 91 mm.
  • Each format may be produced with filters of different lengths, smaller filters being generally used in formats of smaller lengths and circumferences.
  • the filter length will be from 15 mm, associated with short, regular formats, to 30 mm, associated with ultra-long super-slim formats.
  • the tipping paper will have a greater length than the filter, for example from 3 to 10 mm longer.
  • Smoking articles and filters described hereinafter can be manufactured in any of the above formats.
  • the smoking article can, for instance, be from 70 to 100 mm in length and from 14 to 25 mm in circumference.
  • upstream and downstream used herein are relative terms defined in relation to the direction of mainstream smoke (or other aerosol) drawn though a smoking article in use.
  • FIG. 1 is a schematic illustration of a smoking article 1 which is generally cylindrical in shape and is in the regular, king size format, namely having a length in the range 75-91 mm and a circumference in the range 23 to 25 mm.
  • the smoking article 1 includes a tobacco rod 2 wrapped in a wrapping material 3 , in this example cigarette paper, connected longitudinally to a filter 4 by tipping material 5 overlaying the filter 4 and partially overlaying the wrapping material 3 so as to connect the filter 4 to the tobacco rod 2 .
  • the filter 4 comprises a first section 6 at the tobacco rod end of the filter 4 comprising absorbent material 7 having a capsule 8 disposed therein in an axial region of the filter material of the first section 6 .
  • the capsule 8 or other additive material, can be disposed only in the axial region of the filter material of the first filter section 6 , or can be disposed in greater concentration in the axial region than in non-axial regions of the filter material of the first filter section 6 .
  • the first section is wrapped in a first plug wrap 9 .
  • the axial region of the second filter section 10 is a region, in the present example, centred on the axis ‘a’ of the smoking article 1 , having a radius of about 2.5 mm.
  • the radius of the axial region can be anywhere from 1 mm to 4 mm, or from 1 mm to 3 mm, or about 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm or 3.5 mm.
  • the tubular filter section is formed from cellulose acetate tow and is wrapped in a second plug wrap 13 .
  • the wall thickness of the tubular filter is about 1.5 mm.
  • the first segment 6 is a cellulose acetate segment formed using continuous cellulose acetate fibres and a plasticiser.
  • the capsule 8 is spherical and has a diameter of 3.5 mm, although other shapes and sizes of capsule can be used, and contains a fluid additive which modifies properties of mainstream smoke passing through the smoking article 1 .
  • the capsule 8 can be manufactured and inserted into the first filter section 6 using existing processes and machinery.
  • the capsule 8 contains menthol flavourant, although other fluids or granular additives could be contained within the capsule 8 .
  • the capsule can be ruptured by a consumer to release the fluid additive into the absorbent filter material 11 .
  • the capsule 8 is located in an ‘axial region’ of the first filter section 6 , as defined above.
  • the capsule 8 can be located such that the centre of the capsule is closer to the axis ‘a’ of the smoking article 1 than to the outer periphery of the smoking article 1 .
  • the capsule 8 is located with its centre substantially along the axis ‘a’.
  • the capsule 8 is offset from the longitudinal centre of the first filter section 6 .
  • the capsule 8 can, for instance, be located within the first filter section 6 at a position from 1 mm to 10 mm from a longitudinally central position within the first filter section 6 .
  • the capsule 8 is located within a portion of the first filter section 6 closer to the downstream end of the first filter section 6 .
  • the smoking article 1 is, in the present example, provided with ventilation holes (not shown) through the tipping material 5 and first plug wrap 9 , providing ventilation into the first filter section 6 .
  • the ventilation holes are preferably located in a longitudinal position other than that in which the capsule 8 is located, to avoid damaging the capsule 8 during manufacture.
  • ventilation may be provided at 20 mm from the mouth end, while the capsule 8 is longitudinally centrally located within the first filter section and, at 3.5 mm diameter, therefore extends from 15.25 mm to 18.75 mm from the mouth end.
  • the tobacco rod 2 of the smoking article 1 is lit by a consumer in the conventional manner and tobacco smoke is drawn from burning coal of the tobacco rod 2 through the filter 4 .
  • the channel 12 in the second filter section 10 has a lower resistance to mainstream smoke passing through the filter 4 than the surrounding tubular filter material 11 , and therefore a greater proportion of mainstream smoke is directed through the channel 12 . This, in turn, results in a greater flow of mainstream smoke in the axial region around the axis ‘a’ of the first filter section 6 , in which the capsule 8 is located.
  • the smoke modifying additive contained therein in the present case menthol, is released in greater concentration into the axial region of the first filter section 6 through which an increased flow of mainstream smoke is directed, as a result of the second filter section 10 . Accordingly, the increased flow of mainstream smoke enhances the delivery of the smoke modifying additive to the consumer and the smoking article 1 can therefore exhibit improved delivery of a smoke modifying additive to a consumer compared to conventional smoking articles.
  • the absorbent material 27 has an additive carrying thread 28 disposed therein in an axial region (not shown) of the first section 26 , wherein the axial region of the first filter section 26 is as defined in relation to the first filter section 6 of the smoking article 1 described above.
  • the thread can, for instance, be formed from cotton or cellulose acetate fibres and be loaded with between 0.1 and 10 mg of flavourant, such as menthol flavourant. Loading levels of between 0.2 to 2 mg, or between 0.2 and 1 mg of flavourant have been found to be effective.
  • the first section 26 is wrapped in a first plug wrap 29 .
  • the thread 28 carries an additive capable of modifying mainstream smoke passing through the filter 24 , in the present case menthol flavourant.
  • the filter 24 further comprises a second section 30 at the mouth-end of the filter 24 comprising fibrous filter material 31 formed into a tubular shape and having a channel 32 extending through the centre of the filter material 31 , or through an axial region thereof, similar to the second section 10 of the filter 4 of FIG. 1 described above.
  • the tubular filter section is formed from cellulose acetate tow and is wrapped in a second plug wrap 33 .
  • the first segment 26 is a cellulose acetate segment formed using continuous cellulose acetate fibres and a plasticiser.
  • the thread 28 can be inserted into the filter material during formation of the filter section 26 using existing processes and machinery.
  • FIG. 3 is a schematic illustration of a smoking article 41 having a filter according to a further embodiment of the invention.
  • the features of the smoking article 41 are the same as those of the smoking article 1 described with reference to FIG. 1 , unless otherwise stated below.
  • the smoking article 41 includes a tobacco rod 42 wrapped in a wrapping material 43 , in this example cigarette paper, connected longitudinally to a filter 44 by tipping material 45 overlaying the filter 44 and partially overlaying the wrapping material 43 .
  • the filter 44 comprises a first section 46 at the tobacco rod end of the filter 44 comprising absorbent material 47 .
  • the smoking article 41 illustrated in FIG. 3 operates in a similar way to the smoking article 1 illustrated in FIG. 1 .
  • the consumer breaks the plurality of microcapsules 48 prior to or in the course of smoking the smoking article 41 .
  • a greater flow of mainstream smoke is directed, as a result of the second filter section 50 , through the axial region of the first filter section 46 in which the smoke modifying additive released from the microcapsules is located.
  • the increased flow of mainstream smoke enhances the delivery of the smoke modifying additive to the consumer and the smoking article 41 can therefore exhibit improved delivery of a smoke modifying additive to a consumer than convention smoking articles.
  • a second filter section 70 is disposed at the mouth-end of the three-part filter 64 and comprises fibrous filter material 71 formed into a tubular shape and having a channel 72 extending through the centre of the filter material 71 or through the axial region thereof, as described above with reference to the channel 12 of FIG. 1 .
  • the tubular filter section is formed from cellulose acetate tow and is wrapped in a second plug wrap 73 .
  • the first filter section 66 has a length of 10 mm in the present example, the second filter section 70 a length of 7 mm and the third filter section 74 a length of 10 mm, although other section lengths can be used. Ventilation is provided into the third filter section at a position 22 mm from the mouth end of the smoking article 61 .
  • FIG. 5 is a schematic illustration of a smoking article 81 having a filter according to a further embodiment of the invention.
  • the features of the smoking article 81 are the same as those of the smoking article 61 described with reference to FIG. 4 , unless otherwise stated below.
  • the smoking article 81 includes a tobacco rod 82 wrapped in a wrapping material 83 , in this example cigarette paper, connected longitudinally to a filter 84 by tipping material 85 overlaying the filter 84 and partially overlaying the wrapping material 83 .
  • the filter 84 comprises three filter sections, including a first central section 86 comprising absorbent material 87 and, rather than a capsule 68 , a thread 88 disposed therein, in an axial region thereof, the axial region being as defined in relation to the first filter section 6 of the smoking article 1 described above.
  • the first section 86 is wrapped in a first plug wrap 89 .
  • a second filter section 90 is disposed at the mouth-end of the three-part filter 84 and comprises fibrous filter material 91 formed into a tubular shape and having a channel 92 extending through the centre of the filter material 91 or through the axial region thereof, as described above with reference to the channel 12 of FIG. 1 .
  • the tubular filter section is formed from cellulose acetate tow and is wrapped in a second plug wrap 93 .
  • the first filter section 86 has a length of 10 mm in the present example, the second filter section 90 a length of 7 mm and the third filter section 94 a length of 10 mm, although other section lengths can be used. Ventilation is, for instance, provided into the first and third filter sections at respective positions of 13 mm and 20 mm from the mouth end of the smoking article 81 .
  • FIG. 6 is a schematic illustration of a smoking article 101 according to a further embodiment of the invention.
  • the smoking article 101 is generally cylindrical in shape and is in the regular, king size format, namely having a length in the range 75-91 mm and a circumference in the range 23 to 25 mm.
  • the smoking article 101 includes a tobacco rod 102 wrapped in a wrapping material 103 , in this example cigarette paper, connected longitudinally to a filter 104 by tipping material 105 overlaying the filter 104 and partially overlaying the wrapping material 103 .
  • the filter 104 comprises a first section 106 at the tobacco rod end of the filter 104 comprising absorbent material 107 and wrapped in a first plug wrap 108 .
  • the tobacco rod 102 includes a plurality of microcapsules 113 disposed in an axial region thereof at the filter end of the tobacco rod 102 , the axial region being similar in location and size to that defined in relation to the first filter section 6 of the smoking article 1 described above, except that it is located within the tobacco rod 102 .
  • the smoking article 101 illustrated in FIG. 6 operates in a similar way to the smoking article 41 illustrated in FIG. 3 .
  • the consumer breaks the plurality of microcapsules 113 located in the tobacco rod 102 .
  • a greater flow of mainstream smoke is directed, as a result of the second filter section 109 , through the axial region of the filter end of the tobacco rod 2 in which the smoke modifying additive released from the microcapsules is located.
  • the increased flow of mainstream smoke enhances the delivery of the smoke modifying additive to the consumer and the smoking article 101 can therefore exhibit improved delivery of a smoke modifying additive to a consumer than convention smoking articles.
  • the first section 126 is wrapped in a first plug wrap 129 .
  • the capsule 128 contains an additive capable of modifying mainstream smoke passing through the filter 124 , in the present case menthol flavourant.
  • the first segment 126 is a cellulose acetate segment formed using continuous cellulose acetate fibres and a plasticiser.
  • the capsule 128 can be inserted into the filter material during formation of the filter section 126 using existing processes and machinery.
  • the capsule 128 is located within a portion of the first filter section 126 closer to the upstream end of the first filter section 126 , or to the second filter section 130 , than to the downstream end of the first filter section 126 , or to the mouth end of the smoking article 121 .
  • the distance ‘d’ between the centre of the capsule 128 and the upstream end of the first filter section 126 is approximately 30% of the total longitudinal length of the first filter section 126 .
  • the capsule 128 can be located longitudinally centrally within the first filter section 126 or closer to the downstream end of the first filter section 126 than to the upstream end.
  • the smoking article 121 illustrated in FIG. 7 operates in a similar way to the smoking article 1 illustrated in FIG. 1 .
  • the capsule 128 is ruptured to release a smoke modifying additive, a greater flow of mainstream smoke is directed, as a result of the second filter section 130 , through the axial region of the first filter section 126 in which the contents of the capsule 128 have been released. Accordingly, when the smoking article is smoked, the increased flow of mainstream smoke enhances the delivery of the smoke modifying additive to the consumer and the smoking article 121 can therefore exhibit improved delivery of a smoke modifying additive to a consumer than convention smoking articles.
  • the first, second and (where present) third filter sections described above are discrete segments. Although the first, second and (where present) third filter sections described above are connected together using tipping material, they are individually separate and distinct following their formation and prior to being connected together.
  • the tipping material also connects the filter sections to the respective tobacco rod of each embodiment.
  • a further plug wrap can be used to connect the first, second and (where present) third discrete filter sections before they are connected to the tobacco rods using the tipping material.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
US14/440,040 2012-10-31 2013-10-29 Filter for a smoking article Abandoned US20150296878A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB1219540.0 2012-10-31
GBGB1219540.0A GB201219540D0 (en) 2012-10-31 2012-10-31 A filter for a smoking article
PCT/GB2013/052813 WO2014068295A1 (en) 2012-10-31 2013-10-29 A filter for a smoking article

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2013/052813 A-371-Of-International WO2014068295A1 (en) 2012-10-31 2013-10-29 A filter for a smoking article

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US17/011,147 Continuation US20210030057A1 (en) 2012-10-31 2020-09-03 Filter for a smoking article
US17/011,409 Continuation US20210045436A1 (en) 2012-10-31 2020-09-03 Filter for a smoking article

Publications (1)

Publication Number Publication Date
US20150296878A1 true US20150296878A1 (en) 2015-10-22

Family

ID=47358905

Family Applications (3)

Application Number Title Priority Date Filing Date
US14/440,040 Abandoned US20150296878A1 (en) 2012-10-31 2013-10-29 Filter for a smoking article
US17/011,147 Abandoned US20210030057A1 (en) 2012-10-31 2020-09-03 Filter for a smoking article
US17/011,409 Abandoned US20210045436A1 (en) 2012-10-31 2020-09-03 Filter for a smoking article

Family Applications After (2)

Application Number Title Priority Date Filing Date
US17/011,147 Abandoned US20210030057A1 (en) 2012-10-31 2020-09-03 Filter for a smoking article
US17/011,409 Abandoned US20210045436A1 (en) 2012-10-31 2020-09-03 Filter for a smoking article

Country Status (23)

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US (3) US20150296878A1 (ru)
EP (1) EP2914137B1 (ru)
JP (2) JP2014090720A (ru)
KR (5) KR102273017B1 (ru)
CN (2) CN113439872A (ru)
AR (1) AR093294A1 (ru)
AU (1) AU2013340588B2 (ru)
BR (2) BR112015009443B1 (ru)
CA (2) CA3116933A1 (ru)
CL (1) CL2015001125A1 (ru)
DK (1) DK2914137T3 (ru)
ES (1) ES2712943T3 (ru)
GB (1) GB201219540D0 (ru)
HK (1) HK1208601A1 (ru)
HU (1) HUE041761T2 (ru)
MX (1) MX2015005386A (ru)
MY (1) MY178585A (ru)
PH (1) PH12015500947A1 (ru)
PL (1) PL2914137T3 (ru)
RU (2) RU2635971C2 (ru)
TR (1) TR201903110T4 (ru)
UA (4) UA115998C2 (ru)
WO (1) WO2014068295A1 (ru)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130112216A1 (en) * 2010-06-10 2013-05-09 Paul Francis Clarke Tobacco smoke filter
US20160106147A1 (en) * 2013-06-13 2016-04-21 Essentra Filter Products Development Co. Pte. Ltd Tobacco smoke filter
NL2018776A (en) * 2016-04-29 2017-11-06 British American Tobacco Investments Ltd A Filter Tube for a Smoking Article
US20180295875A1 (en) * 2015-05-22 2018-10-18 Philip Morris Products S.A. Aerosol generating article having mouthpiece with surface formations and removable tipping wrapper portion
WO2019105950A1 (en) * 2017-11-30 2019-06-06 Philip Morris Products S.A. Aerosol-generating article having mouthpiece with upstream cavity
US20200245675A1 (en) * 2017-10-25 2020-08-06 British American Tobacco (Investments) Limited A Filter for a Smoking Article or an Aerosol Generating Product
WO2021123817A1 (en) * 2019-12-20 2021-06-24 Nicoventures Trading Limited Article for use in an aerosol provision system
US11058147B1 (en) * 2016-07-29 2021-07-13 Christopher L. Hurley Freezable smoking pipe with integrated reflective particles
US20220030937A1 (en) * 2020-07-29 2022-02-03 Acetate International Llc Catalyst introduction methods for accelerated deacetylation of cellulose esters
US11266176B2 (en) * 2017-10-25 2022-03-08 British American Tobacco (Investments) Limited Filter for a smoking article or an aerosol generating product
US11304442B2 (en) * 2017-07-28 2022-04-19 Sichuan Sanlian New Material Co., Ltd. Smoke generation product and manufacturing method therefor

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2692843C2 (ru) * 2014-08-11 2019-06-28 Филип Моррис Продактс С.А. Увлажненный активированный уголь для курительных изделий
BR112017012274B1 (pt) * 2014-12-08 2022-05-10 British American Tobacco (Investments) Limited Artigo de fumar, seção de filtro e método de fabricação de um artigo de fumar
TW201635927A (zh) 2015-03-27 2016-10-16 菲利浦莫里斯製品股份有限公司 具有嘴端空腔及通氣的吸煙物件
US10321717B2 (en) * 2015-04-30 2019-06-18 Philip Morris Products S.A. Aerosol-generating article comprising a detachable freshener delivery element with high resistance to draw
TW201700019A (zh) 2015-06-30 2017-01-01 菲利浦莫里斯製品股份有限公司 具有改良的熄滅性的菸製品
SG11201804879TA (en) * 2015-12-30 2018-07-30 Philip Morris Products Sa Aerosol-generating article comprising a liquid delivery element
ITUA20161917A1 (it) * 2016-03-24 2017-09-24 Gd Spa Macchina e metodo per la produzione di filtri per sigarette.
KR102297811B1 (ko) * 2017-03-06 2021-09-02 니뽄 다바코 산교 가부시키가이샤 필터 부착 흡연 물품
JP7189884B2 (ja) * 2017-04-03 2022-12-14 フィリップ・モーリス・プロダクツ・ソシエテ・アノニム 挿入ユニットを受容するように構成された喫煙物品マウスピース
GB201715924D0 (en) * 2017-09-29 2017-11-15 British American Tobacco Investments Ltd A filter unit for a smoking article
HUE053170T2 (hu) * 2017-10-02 2021-06-28 Essentra Filter Products Dev Co Pte Ltd Dohányzási cikkhez való szûrõ
GB201717568D0 (en) * 2017-10-25 2017-12-06 British American Tobacco Investments Ltd A smoking article or an aerosol generating product
EA202091553A1 (ru) * 2017-12-22 2020-09-18 Джапан Тобакко Инк. Курительное изделие и фильтр курительного изделия
TWI727128B (zh) * 2017-12-25 2021-05-11 日商日本煙草產業股份有限公司 吸煙物品及吸煙物品的濾嘴
KR101976325B1 (ko) * 2018-07-06 2019-05-07 주식회사 케이티앤지 연기 성분 저감 담배 필터, 담배, 그리고 그 제조 방법
GB201817540D0 (en) * 2018-10-29 2018-12-12 Nerudia Ltd Smoking substitute consumable
GB201903282D0 (en) * 2019-03-11 2019-04-24 Nicoventures Trading Ltd An article for use in a non-combustable aerosol provision
GB201903272D0 (en) * 2019-03-11 2019-04-24 Nicoventures Trading Ltd An article for use in an aerosol provision system
PL3945910T3 (pl) 2019-04-04 2023-10-02 Philip Morris Products S.A. Wyrób do wytwarzania aerozolu zawierający pusty w środku rurowy element podłożowy
KR102062207B1 (ko) 2019-08-23 2020-01-03 주식회사 케이티앤지 트리플 케어 담배 냄새 저감 기술이 적용된 흡연 물품
KR102102802B1 (ko) 2019-08-26 2020-04-22 최종철 공사-용역사업에 관한 온라인 공개입찰 토탈관리 시스템 및 그 구동방법
KR102533111B1 (ko) * 2020-02-17 2023-05-16 주식회사 케이티앤지 가향처리된 튜브필터를 포함하는 흡연물품 및 그의 제조 방법

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3525582A (en) * 1967-09-11 1970-08-25 Haskett Barry F Smoking tobacco charge incorporating encapsulated vitamin a and mode of introduction
US4971078A (en) * 1989-08-15 1990-11-20 Hoechst Celanese Corporation Filter for a smoking article containing a flavored hollow fiber
US5012829A (en) * 1985-11-19 1991-05-07 Philip Morris Incorporated Flavored cigarette filters, and methods and apparatus for making same
US20030098033A1 (en) * 1993-09-30 2003-05-29 Kevin G. Macadam Tobacco smoke filter elements
US20070074734A1 (en) * 2005-09-30 2007-04-05 Philip Morris Usa Inc. Smokeless cigarette system
US20080017206A1 (en) * 2005-09-30 2008-01-24 Philip Morris Usa Inc. Menthol cigarette
US20100101589A1 (en) * 2008-10-28 2010-04-29 John Larkin Nelson Apparatus for enhancing a filter component of a smoking article, and associated method
US20100108085A1 (en) * 2006-12-21 2010-05-06 Martin Graham Duke Smoking Article Filter
US20100294290A1 (en) * 2008-01-25 2010-11-25 Wenhui Zhang Process for manufacturing breakable capsules useful in tobacco products
US20110120481A1 (en) * 2009-11-23 2011-05-26 Philip Morris Usa Inc. Novel filter segment including a substrate loaded with a smoke-modifying agent
WO2011118040A1 (ja) * 2010-03-26 2011-09-29 日本たばこ産業株式会社 揮発性香料デリバリー量を高めたシガレット
US20120255569A1 (en) * 2011-04-08 2012-10-11 Rj Reynolds Tobacco Company Filtered cigarette comprising a tubular element in filter

Family Cites Families (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3860011A (en) 1973-08-27 1975-01-14 Liggett & Myers Inc Hollow filter
JPS6048156B2 (ja) 1982-07-07 1985-10-25 三菱アセテート株式会社 タバコスモ−クフイルタ−
GB8709173D0 (en) 1987-04-16 1987-05-20 Cigarette Components Ltd Ventilated cigarette filter
GB9008887D0 (en) 1990-04-20 1990-06-20 Rothmans Benson & Hedges Cigarette smoke filter
JP2920448B2 (ja) 1992-12-04 1999-07-19 三菱レイヨン株式会社 デュアル構造たばこフィルター
GB9325536D0 (en) 1993-12-14 1994-02-16 Rothmans International Ltd Smoking article and filter therefor
JP2826983B2 (ja) 1995-07-20 1998-11-18 三菱レイヨン株式会社 デュアル構造フィルター付きたばこ
DE19925313C2 (de) * 1999-05-27 2002-04-11 Reemtsma H F & Ph Ventilierte Filtercigarette
DE10060234C2 (de) 2000-12-05 2003-06-12 Reemtsma H F & Ph Rauchprodukt mit Hohlmundstück-Tabakfilter
JP4028802B2 (ja) 2001-02-22 2007-12-26 フィリップ・モーリス・プロダクツ・インコーポレイテッド 紙巻きたばこ及び下流香味添加を持つフィルター
KR20030009800A (ko) * 2001-07-24 2003-02-05 김진희 담배맛 변경이 가능한 담배
US7115085B2 (en) * 2003-09-12 2006-10-03 R.J. Reynolds Tobacco Company Method and apparatus for incorporating objects into cigarette filters
DE602004028061D1 (de) * 2003-09-30 2010-08-19 Reynolds Tobacco Co R Filterzigarette mit Adsorptionsmaterial
US7856990B2 (en) * 2003-09-30 2010-12-28 R. J. Reynolds Tobacco Company Filtered cigarette incorporating an adsorbent material
GB0426615D0 (en) 2004-12-03 2005-01-05 Filtrona Suisse Sa Tobacco smoke filter
US7578298B2 (en) 2005-02-04 2009-08-25 Philip Morris Usa Inc. Flavor capsule for enhanced flavor delivery in cigarettes
US7878962B2 (en) * 2005-05-03 2011-02-01 Philip Morris Usa Inc. Cigarettes and filter subassemblies with squeezable flavor capsule and methods of manufacture
JP2009509524A (ja) 2005-09-30 2009-03-12 フィリップ・モーリス・プロダクツ・ソシエテ・アノニム 香味を付けたシガレット
NZ571453A (en) 2006-03-28 2011-09-30 Philip Morris Prod Smoking article with a restrictor that reduces carbon monoxide but maintains a high resistance to draw
TW200911141A (en) 2007-03-09 2009-03-16 Philip Morris Prod Super recessed filter cigarette restrictor
EP1972213A1 (en) * 2007-03-21 2008-09-24 Philip Morris Products S.A. Multi-component filter providing improved flavour enhancement
GB0715172D0 (en) * 2007-08-03 2007-09-12 British American Tobacco Co Filter and method for making a filter for a cigarette
US8613284B2 (en) * 2008-05-21 2013-12-24 R.J. Reynolds Tobacco Company Cigarette filter comprising a degradable fiber
GB0818810D0 (en) * 2008-10-14 2008-11-19 British American Tobacco Co Smoking article
CN201365518Y (zh) * 2009-03-09 2009-12-23 牡丹江卷烟材料厂有限责任公司 含有生物减害剂的三条彩色香线芯滤棒
GB0911181D0 (en) 2009-06-29 2009-08-12 British American Tobacco Co A filter for a smoking article
GB201004976D0 (en) 2010-03-24 2010-05-12 Filtrona Int Ltd Tobacco smoke filter
KR101409665B1 (ko) * 2010-03-25 2014-06-18 니뽄 다바코 산교 가부시키가이샤 시가렛 필터 및 이것을 이용한 캡슐 필터 시가렛
JP2011205915A (ja) 2010-03-29 2011-10-20 British American Tobacco (Investments) Ltd 喫煙品
US8950407B2 (en) 2010-06-30 2015-02-10 R.J. Reynolds Tobacco Company Degradable adhesive compositions for smoking articles
CN202005243U (zh) 2010-12-17 2011-10-12 南通烟滤嘴有限责任公司 三元复合滤嘴
GB201104475D0 (en) 2011-03-16 2011-04-27 Filtrona Filter Prod Dev Co Tobacco smoke filter
WO2012132009A1 (ja) 2011-03-31 2012-10-04 日本たばこ産業株式会社 シガレット
GB201110863D0 (en) 2011-06-27 2011-08-10 British American Tobacco Co Smoking article filter and insertable filter unit thereof
UA111218C2 (uk) 2011-09-09 2016-04-11 Філіп Морріс Продактс С.А. Курильний виріб, який містить матеріал для доставки аромату
HUE062462T2 (hu) 2012-08-06 2023-11-28 Philip Morris Products Sa Dohányzási termék a száj felõli végen lévõ üreggel

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3525582A (en) * 1967-09-11 1970-08-25 Haskett Barry F Smoking tobacco charge incorporating encapsulated vitamin a and mode of introduction
US5012829A (en) * 1985-11-19 1991-05-07 Philip Morris Incorporated Flavored cigarette filters, and methods and apparatus for making same
US4971078A (en) * 1989-08-15 1990-11-20 Hoechst Celanese Corporation Filter for a smoking article containing a flavored hollow fiber
US20030098033A1 (en) * 1993-09-30 2003-05-29 Kevin G. Macadam Tobacco smoke filter elements
US20070074734A1 (en) * 2005-09-30 2007-04-05 Philip Morris Usa Inc. Smokeless cigarette system
US20080017206A1 (en) * 2005-09-30 2008-01-24 Philip Morris Usa Inc. Menthol cigarette
US20100108085A1 (en) * 2006-12-21 2010-05-06 Martin Graham Duke Smoking Article Filter
US20100294290A1 (en) * 2008-01-25 2010-11-25 Wenhui Zhang Process for manufacturing breakable capsules useful in tobacco products
US20100101589A1 (en) * 2008-10-28 2010-04-29 John Larkin Nelson Apparatus for enhancing a filter component of a smoking article, and associated method
US20110120481A1 (en) * 2009-11-23 2011-05-26 Philip Morris Usa Inc. Novel filter segment including a substrate loaded with a smoke-modifying agent
WO2011118040A1 (ja) * 2010-03-26 2011-09-29 日本たばこ産業株式会社 揮発性香料デリバリー量を高めたシガレット
US20130019884A1 (en) * 2010-03-26 2013-01-24 Japan Tobacco Inc. Cigarette with increased volatile flavor delivery
US20120255569A1 (en) * 2011-04-08 2012-10-11 Rj Reynolds Tobacco Company Filtered cigarette comprising a tubular element in filter

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130112216A1 (en) * 2010-06-10 2013-05-09 Paul Francis Clarke Tobacco smoke filter
US11918035B2 (en) 2010-06-10 2024-03-05 Filtrona Filter Products Development Co. Pte. Ltd. Tobacco smoke filter
US20160106147A1 (en) * 2013-06-13 2016-04-21 Essentra Filter Products Development Co. Pte. Ltd Tobacco smoke filter
US10939701B2 (en) * 2013-06-13 2021-03-09 Essentra Filter Products Development Co. Pte. Ltd Tobacco smoke filter
US10842184B2 (en) * 2015-05-22 2020-11-24 Philip Morris Products S.A. Aerosol generating article having mouthpiece with surface formations and removable tipping wrapper portion
US20180295875A1 (en) * 2015-05-22 2018-10-18 Philip Morris Products S.A. Aerosol generating article having mouthpiece with surface formations and removable tipping wrapper portion
NL2018776A (en) * 2016-04-29 2017-11-06 British American Tobacco Investments Ltd A Filter Tube for a Smoking Article
BE1024591B1 (fr) * 2016-04-29 2018-04-19 British American Tobacco (Investments) Limited Tube a bout filtre pour un article a fumer
US11058147B1 (en) * 2016-07-29 2021-07-13 Christopher L. Hurley Freezable smoking pipe with integrated reflective particles
US11304442B2 (en) * 2017-07-28 2022-04-19 Sichuan Sanlian New Material Co., Ltd. Smoke generation product and manufacturing method therefor
US20200245675A1 (en) * 2017-10-25 2020-08-06 British American Tobacco (Investments) Limited A Filter for a Smoking Article or an Aerosol Generating Product
US11266176B2 (en) * 2017-10-25 2022-03-08 British American Tobacco (Investments) Limited Filter for a smoking article or an aerosol generating product
US11910822B2 (en) * 2017-10-25 2024-02-27 British American Tobacco (Investments) Limited Filter for a smoking article or an aerosol generating product
WO2019105950A1 (en) * 2017-11-30 2019-06-06 Philip Morris Products S.A. Aerosol-generating article having mouthpiece with upstream cavity
EP3675660B1 (en) 2017-11-30 2022-01-05 Philip Morris Products S.A. Aerosol-generating article having mouthpiece with upstream cavity
EP4005406A1 (en) * 2017-11-30 2022-06-01 Philip Morris Products S.A. Aerosol-generating article having mouthpiece with upstream cavity
CN111343875A (zh) * 2017-11-30 2020-06-26 菲利普莫里斯生产公司 具有带上游腔的衔嘴的气溶胶生成制品
WO2021123817A1 (en) * 2019-12-20 2021-06-24 Nicoventures Trading Limited Article for use in an aerosol provision system
US20220030937A1 (en) * 2020-07-29 2022-02-03 Acetate International Llc Catalyst introduction methods for accelerated deacetylation of cellulose esters

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