US20190098928A1 - Smoking article filter - Google Patents
Smoking article filter Download PDFInfo
- Publication number
- US20190098928A1 US20190098928A1 US15/722,086 US201715722086A US2019098928A1 US 20190098928 A1 US20190098928 A1 US 20190098928A1 US 201715722086 A US201715722086 A US 201715722086A US 2019098928 A1 US2019098928 A1 US 2019098928A1
- Authority
- US
- United States
- Prior art keywords
- filter
- filter according
- filtering material
- channel
- cannabis sativa
- 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.)
- Pending
Links
- 230000000391 smoking effect Effects 0.000 title claims description 34
- 239000000463 material Substances 0.000 claims abstract description 79
- 238000001914 filtration Methods 0.000 claims abstract description 56
- 244000025254 Cannabis sativa Species 0.000 claims description 37
- 239000000779 smoke Substances 0.000 claims description 31
- 239000000796 flavoring agent Substances 0.000 claims description 30
- 241000208125 Nicotiana Species 0.000 claims description 21
- 235000002637 Nicotiana tabacum Nutrition 0.000 claims description 21
- 240000004308 marijuana Species 0.000 claims description 17
- 235000008697 Cannabis sativa Nutrition 0.000 claims description 16
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 claims description 14
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 claims description 14
- URAYPUMNDPQOKB-UHFFFAOYSA-N triacetin Chemical compound CC(=O)OCC(OC(C)=O)COC(C)=O URAYPUMNDPQOKB-UHFFFAOYSA-N 0.000 claims description 14
- 229920002301 cellulose acetate Polymers 0.000 claims description 12
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 235000009120 camo Nutrition 0.000 claims description 7
- 235000005607 chanvre indien Nutrition 0.000 claims description 7
- 239000001087 glyceryl triacetate Substances 0.000 claims description 7
- 235000013773 glyceryl triacetate Nutrition 0.000 claims description 7
- 239000011487 hemp Substances 0.000 claims description 7
- 229920001223 polyethylene glycol Polymers 0.000 claims description 7
- 229960002622 triacetin Drugs 0.000 claims description 7
- OVOUKWFJRHALDD-UHFFFAOYSA-N 2-[2-(2-acetyloxyethoxy)ethoxy]ethyl acetate Chemical compound CC(=O)OCCOCCOCCOC(C)=O OVOUKWFJRHALDD-UHFFFAOYSA-N 0.000 claims description 6
- 235000013628 Lantana involucrata Nutrition 0.000 claims description 6
- 235000006677 Monarda citriodora ssp. austromontana Nutrition 0.000 claims description 6
- 240000007673 Origanum vulgare Species 0.000 claims description 6
- 239000002202 Polyethylene glycol Substances 0.000 claims description 6
- 238000009423 ventilation Methods 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 239000011203 carbon fibre reinforced carbon Substances 0.000 claims 1
- 239000000049 pigment Substances 0.000 claims 1
- 210000003296 saliva Anatomy 0.000 claims 1
- 239000000654 additive Substances 0.000 description 16
- 230000000996 additive effect Effects 0.000 description 15
- 239000003795 chemical substances by application Substances 0.000 description 10
- 208000006150 Marijuana Smoking Diseases 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- NOOLISFMXDJSKH-UTLUCORTSA-N (+)-Neomenthol Chemical compound CC(C)[C@@H]1CC[C@@H](C)C[C@@H]1O NOOLISFMXDJSKH-UTLUCORTSA-N 0.000 description 4
- NOOLISFMXDJSKH-UHFFFAOYSA-N DL-menthol Natural products CC(C)C1CCC(C)CC1O NOOLISFMXDJSKH-UHFFFAOYSA-N 0.000 description 4
- 235000019504 cigarettes Nutrition 0.000 description 4
- 229940041616 menthol Drugs 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
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- 241001674044 Blattodea Species 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 3
- 241000231739 Rutilus rutilus Species 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
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- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 244000144730 Amygdalus persica Species 0.000 description 1
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- 235000006040 Prunus persica var persica Nutrition 0.000 description 1
- 244000114218 Salvia fruticosa Species 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 235000016639 Syzygium aromaticum Nutrition 0.000 description 1
- 244000223014 Syzygium aromaticum Species 0.000 description 1
- 244000299461 Theobroma cacao Species 0.000 description 1
- 235000009499 Vanilla fragrans Nutrition 0.000 description 1
- 244000263375 Vanilla tahitensis Species 0.000 description 1
- 235000012036 Vanilla tahitensis Nutrition 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000003957 anion exchange resin Substances 0.000 description 1
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- 235000019219 chocolate Nutrition 0.000 description 1
- 235000017803 cinnamon Nutrition 0.000 description 1
- 239000010634 clove oil Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 239000002195 soluble material Substances 0.000 description 1
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- 229920003002 synthetic resin Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Images
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
- A24D3/061—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
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
- A24B15/10—Chemical features of tobacco products or tobacco substitutes
- A24B15/16—Chemical features of tobacco products or tobacco substitutes of tobacco substitutes
-
- 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
- A24D1/027—Cigars; Cigarettes with special covers with ventilating means, e.g. perforations
-
- 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
- A24D1/18—Selection of materials, other than tobacco, suitable for 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
- 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
- A24D3/06—Use of materials for tobacco smoke filters
- A24D3/08—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent
- A24D3/10—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent of cellulose or cellulose derivatives
Definitions
- the present invention relates to filters for smoking articles.
- the filtering material typically used in smoking article filters is a continuous tow of filamentary cellulose acetate plasticised with triacetin, which is gathered together to form a solid cylindrical rod of filtering material.
- the solid cylindrical rod of filtering material may then be chopped into segments to provide individual filters.
- Smoking articles such as conventional tobacco cigarettes are most commonly sold filter tipped.
- a filter is attached to a rod of tobacco for example using one or more wrappers.
- Marijuana smoking articles are typically hand-rolled by the smoker. Marijuana smoking articles do not typically include a filter comprising a cylindrical rod of acetate fibres. This is because the cellulose acetate is thought to excessively filter the active ingredients in marijuana smoke, for example CBD and/or THC.
- Many marijuana smokers prefer to smoke marijuana smoking articles using a rudimentary smoker-prepared mouthpiece, commonly known as a “roach”.
- a roach is generally prepared by rolling a strip of cardboard at an angle to edge of the strip to form a conical mouthpiece.
- Roaches do not significantly filter the marijuana smoke, and simply serve to prevent the heat from the smoke and/or burning particles in the smoke, e.g. burning Marijuana particles from burning the smoker's lips whilst inhaling.
- Disadvantages of roaches include the significant amount of time for the smoker to prepare and an undesirable, untrustworthy and unreproducible crude-looking end appearance.
- a refined, reproducible and trustworthy looking smoking article filter for use with a marijuana smoking article, either for use as a “roll-your-own” product, or for use in a manufactured filter tipped marijuana smoking article (e.g. cigarette). It is desirable that the smoking article filter should prevent the smoker's lips from getting burnt and provide a reproducible, refined and trustworthy looking end appearance similar to that of a modern filter-tipped cigarette, whilst (like roaches) not significantly reducing the quantities of active ingredients in the marijuana smoke.
- a filter (e.g. for use in a smoking article) comprising a longitudinally extending (e.g. cylindrical) rod of filtering material including at least one longitudinally extending channel which extends along (e.g. through) the full length of the filter.
- the channel is surrounded by the filtering material along the full length of the filter, but open at both ends.
- a filter (e.g. for use in a smoking article) comprising a longitudinally extending tubular rod of filtering material, the inner surface of the tubular rod of filtering material defining at least one (e.g. cylindrical) channel which extends along (e.g. through) the full length of the filter.
- the longitudinally extending rod of filtering material may be of uniform cross-section along its full length (for example, being of uniform annular cross-section along its full length with the inner surface of the annular cross-section defining the channel).
- the longitudinally extending rod of filtering material is of uniform outer dimension along its full length but the channel (which may or may not be of uniform cross-section along its full length) is helical about the longitudinally extending axis of the filter (e.g. the channel is in the form of a spiral about the longitudinal axis of the filter).
- a helical channel increases the distance the marijuana smoke has to travel to reach the smoker's lips, thus providing a cool yet minimally filtered smoke. This advantage is not possible using existing roach technology.
- the channel may be of circular, semi-circular (D-shaped), hollow star shaped, trilobal, pentagonal or cog-shaped cross-section, or of a cross-section in the shape of a logo or other pattern.
- Filters having a non-cylindrical channel, particularly those channel filters having a complex and/or unsymmetrical cross-sectional profile may be of particular use in combatting anti-counterfeiting.
- Channel filters wherein the channel is not of uniform cross-section along its full length may also be of use in combatting anti-counterfeiting.
- the channel which extends the full length of the filter may be of uniform cross-section along the full length of the filter.
- the rod of filtering material is preferably of uniform outer dimensions along its full length (e.g. a cylinder of uniform dimensions along its full length).
- Channel filters may be manufactured by pulling a continuous bundle of cellulose acetate filamentary tow, optionally with triacetin already applied thereto, through a fix die having an external diameter equal to that of the desired external diameter of the filter to be produced, the fix die including a protruding inner rod (or mandrel) extending through the die having a cross-sectional profile equal to that of the desired cross-section of the channel.
- the filamentary tow When the filamentary tow is pulled through the die, it passes around the inner rod such that on exiting the die, a filter is formed having a channel having a cross-sectional profile equivalent to that of the inner rod.
- Heated steam may be applied to the filamentary tow whilst the filamentary tow is in the die.
- the heated steam may be applied via a duct in the die.
- the heated steam may be for curing plasticizer applied to the filamentary tow (if present), allowing the filter to maintain the shape of the die after exiting the die.
- a channel extending along (e.g. through) the full length of the filter allows a significant quantity of smoke (e.g. marijuana smoke, e.g. hemp smoke, e.g. oregano smoke) to pass directly to the smoker's mouth without being overly filtered.
- smoke e.g. marijuana smoke, e.g. hemp smoke, e.g. oregano smoke
- the filter also provides a refined end appearance and prevents the smoker's fingers and/or mouth from being burnt.
- the filtering material may be, for example, any of those materials (usually filamentary, fibrous, web or extruded) conventionally employed for tobacco smoke filter manufacture.
- the filtering material may be natural or synthetic filamentary tow, e.g. of cotton or plastics such as polyethylene or polypropylene, or cellulose acetate filamentary tow. It may be, for example, natural or synthetic staple fibres, cotton wool, web material such as paper (usually creped) and synthetic non-wovens, and extruded material (e.g. starch, synthetic foams).
- the filtering material comprises cellulose acetate filamentary tow.
- the fibres may be plasticised.
- the filtering material may optionally include a plasticiser.
- the formation of plasticised tow is well known in the art.
- the plasticiser (which plasticises the fibres) may be, for example, triacetin, triethyleneglycol diacetate (TEGDA) or polyethylene glycol (PEG).
- TAGDA triethyleneglycol diacetate
- PEG polyethylene glycol
- the fibres may be fibres of plasticised cellulose acetate tow.
- the fibres may be cellulose acetate tow which has been plasticised with e.g. triacetin.
- the filtering material may optionally include a binder material.
- the filtering material may optionally include a water soluble binder material.
- water soluble materials include water soluble polymer materials such as polyvinyl alcohol, polyvinyl pyrrolidone, polyvinyl ether, starches, polyethylene glycols and polypropylene glycols; blends of water soluble binders with plasticisers such as triacetin, triethyleneglycol diacetate (TEGDA), or polyethylene glycol (PEG); and hot melt water soluble binders in particulate form.
- TOGDA triethyleneglycol diacetate
- PEG polyethylene glycol
- the filtering material may include an additive.
- the additive may be a particulate additive.
- the particulate additive may be any particulate additive suitable for use in a smoke filter—e.g. activated carbon, zeolite, ion exchange resin (e.g. a weakly basic anion exchange resin), sepiolite, silica gel, alumina, molecular sieves, carbonaceous polymer resins and diatomaceous earths.
- the particulate additive may be a mixture of two, or more, materials.
- the additive may include a smoke modifying agent (for example a flavourant). This may be any smoke modifying agent (e.g.
- flavourant known or suitable for use in a smoking article such as a cigarette, for example flavourant such as menthol, spearmint, clove oil etc.
- the flavourant may be any flavouring agent known for use in smoke filters.
- the flavouring agent may be menthol, spearmint, peppermint, nutmeg, cinnamon, clove, lemon, chocolate, peach, strawberry, vanilla etc.
- the smoke modifying agent (flavourant) may be applied to the filtering material in liquid form.
- the smoke modifying agent (flavourant) may be liquefied prior to application to the filtering material, for example by heating above the melting point, for example by mixing with a liquid carrier.
- the smoke modifying agent (flavourant) may be applied to the filtering material prior to the filtering material entering the die, for example immediately before entering the die.
- the smoke modifying agent (flavourant) may be mixed with and applied with a plasticiser, for example by spraying the mixture of smoke modifying agent (flavourant) and plasticiser onto the filtering material.
- a preferred smoke modifying agent (flavourant) is menthol.
- the additive may be sepiolite granules to which menthol flavourant has been applied.
- the filtering material may include fully enclosed (e.g. embedded) pocket(s) of additive embedded therein.
- the additive may be a particulate additive such as activated carbon (see above), which is for example enclosed within the filtering material as a discrete pocket or pod of particles of particulate additive which is substantially separate from, and fully enclosed within, the filtering material.
- the fully enclosed (e.g. embedded) pocket(s) of additive may be a frangible capsule or capsules, or one or a plurality of frangible microcapsules.
- the capsule(s) or microcapsule(s) may contain a variety of media—e.g. a smoke modifying agent such as a flavourant (such as those flavourants disclosed above) and/or a liquid, solid or other material e.g. to aid smoke filtration.
- a smoke modifying agent such as a flavourant (such as those flavourants disclosed above)
- a liquid, solid or other material e.g. to aid smoke filtration.
- the channel is semi-cylindrical in shape and the pocket(s) of additive (e.g. flavour capsule[s]) is/are provided in the rod of filtering material adjacent the semi-cylindrical channel.
- the flavourant may be provided in and/or on a thread.
- “Flavour Thread” smoking article filters are well known in the art. Such filters incorporate a thread or tape element, typically longitudinally aligned therein, the element carrying a smoke modifying agent such as a flavourant. These were originally proposed in U.S. Pat. No. 4,281,671, in which a cotton sewing thread was the preferred element. This document also disclosed how the thread could be coloured, e.g. with different colours denoting different flavours.
- the thread may be provided fully enclosed within the rod of filtering material adjacent a semi-cylindrical channel.
- the flavourant may be provided in and/or on an extruded element.
- “Tube filter” smoking article filters are well known in the art. Such filters incorporate one or more continuous extruded element(s) extending longitudinally of the rod. These filters were proposed in WO2011/058319.
- the extruded element may be of a hollow or solid cross-section.
- the extruded element may be provided fully enclosed within the rod of filtering material adjacent a semi-cylindrical channel.
- the flavourant may be provided in and/or on the extruded element in liquid form, for example as a liquid sprayed onto the external surface of the of the continuous extruded element.
- the channel is semi-cylindrical in shape and the thread and/or extruded element is provided in the rod of filtering material adjacent the semi-cylindrical channel.
- the outer circumference of the filter may be for example between 14.0 mm and 35 mm, for example between 16 and 30 mm, for example between 18.0 mm and 28 mm, for example between 22 mm and 26 mm, for example about 25 mm.
- the smoke filtering material may be over wrapped with a wrapper or plugwrap, for example a wrapper of paper, for example a wrapper of an air-permeable paper.
- Particulate additives such as those discussed above may be applied to the wrapper or plugwrap surrounding the filter material, for example as described in GB 2261152.
- the wrapper and/or plug wrap may alternatively be derived from a plant in the Cannabis genus, for example Cannabis sativa, for example Cannabis sativa sativa, Cannabis sativa indica or Cannabis sativa ruderalis or from a mixture thereof.
- Such wrappers are well known in the art and described in WO2017068437, for example.
- Any filter or filter smoking article according to the invention may be unventilated, or may be ventilated by methods well known in the art, e.g. by use of a pre-perforated or air-permeable wrapper(s) (plugwrap), and/or laser perforation of wrapper(s) (plugwrap) and tipping overwrap.
- a ventilating full tipping overwrap may likewise be inherently air-permeable or provided with ventilation holes, and in ventilated products where both filter plugwrap and tipping overwrap are present ventilation through the overwrap will usually be in register with that through the plugwrap. Ventilation holes through a filter plugwrap, or through a tipping overwrap, or through both simultaneously, may be made by laser perforation during filter or filter smoking article production.
- a multiple rod comprising a plurality of filters as described above and/or herein integrally joined end-to-end in a mirror image relationship.
- the filter of the invention for use in a smoking article comprising one or more smokable material(s) other than tobacco.
- the smokable material other than tobacco may be prepared from a plant in the Cannabis genus, for example Cannabis sativa, for example Cannabis sativa sativa, Cannabis sativa indica or Cannabis sativa ruderalis or a mixture thereof. Additionally or alternatively the smokable material other than tobacco may comprise oregano and/or hemp.
- the filter of the invention for filtering the smoke of a smoking article comprising one or more smokable material(s) other than tobacco.
- the smokable material other than tobacco may be prepared from a plant in the Cannabis genus, for example Cannabis sativa, for example Cannabis sativa sativa, Cannabis sativa indica or Cannabis sativa ruderalis or a mixture thereof. Additionally or alternatively the smokable material other than tobacco may comprise oregano and/or hemp.
- a smoking article comprising the smoking article filter of the first or second aspect of the invention joined to a wrapped rod comprising a smokable material other than tobacco.
- the smokable material other than tobacco may be prepared from a plant in the Cannabis genus, for example Cannabis sativa, for example Cannabis sativa sativa, Cannabis sativa indica or Cannabis sativa ruderalis or a mixture thereof. Additionally or alternatively the smokable material other than tobacco may comprise oregano and/or hemp.
- FIG. 1 illustrates a smoking article filter in accordance with an embodiment of the invention.
- FIG. 2 illustrates a smoking article filter in accordance with an embodiment of the invention.
- FIG. 3 illustrates a cross section of a smoking article filter in accordance with an embodiment of the invention.
- FIG. 1 shows a smoking article filter 1 of 27 mm length and 24.5 mm circumference comprising a longitudinally extending annular rod 2 of filtering material.
- the filtering material comprises cellulose acetate filamentary tow.
- the annular rod 2 of filtering material defines a longitudinally extending cylindrical channel 3 which extends along the full length of the filter.
- Smoking article filter 1 may be manufactured by pulling a continuous bundle of cellulose acetate filamentary tow, optionally with triacetin already applied thereto, through a fix die having an external diameter equal to that of the desired external diameter of the filter, the fix die including a protruding inner rod (or mandrel) extending through the die having a cross-sectional profile equal to that of the desired cross-section of the channel 3 .
- the filamentary tow is pulled through the die, it passes around the inner rod such that on exiting the die, a filter 1 including an annular rod 2 of filtering material is formed, the filter 1 having a channel 3 having a cross-sectional profile equivalent to that of the inner rod.
- Heated steam may be applied to the filamentary tow whilst the filamentary tow is in the die.
- the heated steam may be applied via a duct in the die.
- the heated steam may be for curing plasticizer applied to the filamentary tow (if present), allowing the filter 1 to maintain the shape of the die after exiting the die.
- FIG. 2 shows a smoking article filter 101 , of 27 mm length and 24.5 mm circumference comprising a longitudinally extending annular rod 102 of filtering material.
- the filtering material comprises cellulose acetate filamentary tow.
- the annular rod 102 of smoking filtering material includes a longitudinally extending channel 103 of semi-circular (D-shaped) cross-section which extends along the full length of the filter.
- a flavour capsule 104 is provided within the filtering material which forms the annular rod 102 , approximately half way along the full length of the rod.
- Smoking article filter 101 may be manufactured using the same method as used to manufacture smoking article filter 1 .
- the insertion of flavour capsule 104 into the annular rod 102 of filtering material may be carried out using methods well known in the art.
- FIG. 3 shows a cross-section of the smoking article filter 101 of FIG. 2 (denoted by the plane 105 - 105 shown in FIG. 2 ), showing the D-shaped cross section of channel 103 and the capsule 104 within the filtering material.
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- Chemical & Material Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
Abstract
Description
- The present invention relates to filters for smoking articles.
- The filtering material typically used in smoking article filters is a continuous tow of filamentary cellulose acetate plasticised with triacetin, which is gathered together to form a solid cylindrical rod of filtering material. The solid cylindrical rod of filtering material may then be chopped into segments to provide individual filters.
- Smoking articles such as conventional tobacco cigarettes are most commonly sold filter tipped. In filter tipped smoking articles, a filter is attached to a rod of tobacco for example using one or more wrappers.
- Marijuana smoking articles, also known as “joints”, are typically hand-rolled by the smoker. Marijuana smoking articles do not typically include a filter comprising a cylindrical rod of acetate fibres. This is because the cellulose acetate is thought to excessively filter the active ingredients in marijuana smoke, for example CBD and/or THC. Many marijuana smokers prefer to smoke marijuana smoking articles using a rudimentary smoker-prepared mouthpiece, commonly known as a “roach”. A roach is generally prepared by rolling a strip of cardboard at an angle to edge of the strip to form a conical mouthpiece.
- Roaches do not significantly filter the marijuana smoke, and simply serve to prevent the heat from the smoke and/or burning particles in the smoke, e.g. burning Marijuana particles from burning the smoker's lips whilst inhaling.
- Disadvantages of roaches include the significant amount of time for the smoker to prepare and an undesirable, untrustworthy and unreproducible crude-looking end appearance.
- Accordingly, it is desirable to provide a refined, reproducible and trustworthy looking smoking article filter for use with a marijuana smoking article, either for use as a “roll-your-own” product, or for use in a manufactured filter tipped marijuana smoking article (e.g. cigarette). It is desirable that the smoking article filter should prevent the smoker's lips from getting burnt and provide a reproducible, refined and trustworthy looking end appearance similar to that of a modern filter-tipped cigarette, whilst (like roaches) not significantly reducing the quantities of active ingredients in the marijuana smoke.
- According to the invention in a first aspect there is provided a filter (e.g. for use in a smoking article) comprising a longitudinally extending (e.g. cylindrical) rod of filtering material including at least one longitudinally extending channel which extends along (e.g. through) the full length of the filter. Preferably the channel is surrounded by the filtering material along the full length of the filter, but open at both ends.
- According to the invention in an aspect there is provided a filter (e.g. for use in a smoking article) comprising a longitudinally extending tubular rod of filtering material, the inner surface of the tubular rod of filtering material defining at least one (e.g. cylindrical) channel which extends along (e.g. through) the full length of the filter.
- It will be appreciated that the longitudinally extending rod of filtering material may be of uniform cross-section along its full length (for example, being of uniform annular cross-section along its full length with the inner surface of the annular cross-section defining the channel). In another example, the longitudinally extending rod of filtering material is of uniform outer dimension along its full length but the channel (which may or may not be of uniform cross-section along its full length) is helical about the longitudinally extending axis of the filter (e.g. the channel is in the form of a spiral about the longitudinal axis of the filter). A helical channel increases the distance the marijuana smoke has to travel to reach the smoker's lips, thus providing a cool yet minimally filtered smoke. This advantage is not possible using existing roach technology.
- The channel may be of circular, semi-circular (D-shaped), hollow star shaped, trilobal, pentagonal or cog-shaped cross-section, or of a cross-section in the shape of a logo or other pattern. Filters having a non-cylindrical channel, particularly those channel filters having a complex and/or unsymmetrical cross-sectional profile may be of particular use in combatting anti-counterfeiting. Channel filters wherein the channel is not of uniform cross-section along its full length may also be of use in combatting anti-counterfeiting.
- The channel which extends the full length of the filter may be of uniform cross-section along the full length of the filter. The rod of filtering material is preferably of uniform outer dimensions along its full length (e.g. a cylinder of uniform dimensions along its full length).
- Channel filters may be manufactured by pulling a continuous bundle of cellulose acetate filamentary tow, optionally with triacetin already applied thereto, through a fix die having an external diameter equal to that of the desired external diameter of the filter to be produced, the fix die including a protruding inner rod (or mandrel) extending through the die having a cross-sectional profile equal to that of the desired cross-section of the channel. When the filamentary tow is pulled through the die, it passes around the inner rod such that on exiting the die, a filter is formed having a channel having a cross-sectional profile equivalent to that of the inner rod. Heated steam may be applied to the filamentary tow whilst the filamentary tow is in the die. The heated steam may be applied via a duct in the die. The heated steam may be for curing plasticizer applied to the filamentary tow (if present), allowing the filter to maintain the shape of the die after exiting the die.
- The inclusion of a channel extending along (e.g. through) the full length of the filter allows a significant quantity of smoke (e.g. marijuana smoke, e.g. hemp smoke, e.g. oregano smoke) to pass directly to the smoker's mouth without being overly filtered. The filter also provides a refined end appearance and prevents the smoker's fingers and/or mouth from being burnt.
- It will be appreciated that whilst the bulk of the smoke passes directly to the smoker's mouth there will be some filtration effect because the internal side walls of the rod of filtering material will reduce the amount of sidestream smoke produced by the smoking article.
- The filtering material may be, for example, any of those materials (usually filamentary, fibrous, web or extruded) conventionally employed for tobacco smoke filter manufacture. The filtering material may be natural or synthetic filamentary tow, e.g. of cotton or plastics such as polyethylene or polypropylene, or cellulose acetate filamentary tow. It may be, for example, natural or synthetic staple fibres, cotton wool, web material such as paper (usually creped) and synthetic non-wovens, and extruded material (e.g. starch, synthetic foams). Preferably the filtering material comprises cellulose acetate filamentary tow.
- The fibres (e.g. of fibre tow, e.g. cellulose acetate tow) may be plasticised. In other words, the filtering material may optionally include a plasticiser. The formation of plasticised tow is well known in the art. The plasticiser (which plasticises the fibres) may be, for example, triacetin, triethyleneglycol diacetate (TEGDA) or polyethylene glycol (PEG). The fibres may be fibres of plasticised cellulose acetate tow. The fibres may be cellulose acetate tow which has been plasticised with e.g. triacetin.
- The filtering material may optionally include a binder material. The filtering material may optionally include a water soluble binder material. Examples of water soluble materials include water soluble polymer materials such as polyvinyl alcohol, polyvinyl pyrrolidone, polyvinyl ether, starches, polyethylene glycols and polypropylene glycols; blends of water soluble binders with plasticisers such as triacetin, triethyleneglycol diacetate (TEGDA), or polyethylene glycol (PEG); and hot melt water soluble binders in particulate form. The inclusion of a water soluble binder material may further enhance the ability of the filter to be readily and swiftly degraded e.g. under environmental conditions.
- The filtering material may include an additive. The additive may be a particulate additive. The particulate additive may be any particulate additive suitable for use in a smoke filter—e.g. activated carbon, zeolite, ion exchange resin (e.g. a weakly basic anion exchange resin), sepiolite, silica gel, alumina, molecular sieves, carbonaceous polymer resins and diatomaceous earths. The particulate additive may be a mixture of two, or more, materials. The additive may include a smoke modifying agent (for example a flavourant). This may be any smoke modifying agent (e.g. flavourant) known or suitable for use in a smoking article such as a cigarette, for example flavourant such as menthol, spearmint, clove oil etc. The flavourant may be any flavouring agent known for use in smoke filters. For example, the flavouring agent may be menthol, spearmint, peppermint, nutmeg, cinnamon, clove, lemon, chocolate, peach, strawberry, vanilla etc. The smoke modifying agent (flavourant) may be applied to the filtering material in liquid form. The smoke modifying agent (flavourant) may be liquefied prior to application to the filtering material, for example by heating above the melting point, for example by mixing with a liquid carrier. The smoke modifying agent (flavourant) may be applied to the filtering material prior to the filtering material entering the die, for example immediately before entering the die. The smoke modifying agent (flavourant) may be mixed with and applied with a plasticiser, for example by spraying the mixture of smoke modifying agent (flavourant) and plasticiser onto the filtering material. A preferred smoke modifying agent (flavourant) is menthol. For example, the additive may be sepiolite granules to which menthol flavourant has been applied.
- The filtering material may include fully enclosed (e.g. embedded) pocket(s) of additive embedded therein. The additive may be a particulate additive such as activated carbon (see above), which is for example enclosed within the filtering material as a discrete pocket or pod of particles of particulate additive which is substantially separate from, and fully enclosed within, the filtering material. In another example, the fully enclosed (e.g. embedded) pocket(s) of additive may be a frangible capsule or capsules, or one or a plurality of frangible microcapsules. The capsule(s) or microcapsule(s) may contain a variety of media—e.g. a smoke modifying agent such as a flavourant (such as those flavourants disclosed above) and/or a liquid, solid or other material e.g. to aid smoke filtration. The use of capsules or microcapsules is well known in the art.
- If pocket(s) of additive (e.g. flavour capsule[s]) is/are present, preferably the channel is semi-cylindrical in shape and the pocket(s) of additive (e.g. flavour capsule[s]) is/are provided in the rod of filtering material adjacent the semi-cylindrical channel.
- The flavourant may be provided in and/or on a thread. “Flavour Thread” smoking article filters are well known in the art. Such filters incorporate a thread or tape element, typically longitudinally aligned therein, the element carrying a smoke modifying agent such as a flavourant. These were originally proposed in U.S. Pat. No. 4,281,671, in which a cotton sewing thread was the preferred element. This document also disclosed how the thread could be coloured, e.g. with different colours denoting different flavours. The thread may be provided fully enclosed within the rod of filtering material adjacent a semi-cylindrical channel.
- The flavourant may be provided in and/or on an extruded element. “Tube filter” smoking article filters are well known in the art. Such filters incorporate one or more continuous extruded element(s) extending longitudinally of the rod. These filters were proposed in WO2011/058319. The extruded element may be of a hollow or solid cross-section. The extruded element may be provided fully enclosed within the rod of filtering material adjacent a semi-cylindrical channel. The flavourant may be provided in and/or on the extruded element in liquid form, for example as a liquid sprayed onto the external surface of the of the continuous extruded element.
- If a thread and/or an extruded element is present, preferably the channel is semi-cylindrical in shape and the thread and/or extruded element is provided in the rod of filtering material adjacent the semi-cylindrical channel.
- The outer circumference of the filter may be for example between 14.0 mm and 35 mm, for example between 16 and 30 mm, for example between 18.0 mm and 28 mm, for example between 22 mm and 26 mm, for example about 25 mm.
- In filters according to aspects of the invention, the smoke filtering material may be over wrapped with a wrapper or plugwrap, for example a wrapper of paper, for example a wrapper of an air-permeable paper. Particulate additives such as those discussed above may be applied to the wrapper or plugwrap surrounding the filter material, for example as described in GB 2261152. The wrapper and/or plug wrap may alternatively be derived from a plant in the Cannabis genus, for example Cannabis sativa, for example Cannabis sativa sativa, Cannabis sativa indica or Cannabis sativa ruderalis or from a mixture thereof. Such wrappers are well known in the art and described in WO2017068437, for example.
- Any filter or filter smoking article according to the invention may be unventilated, or may be ventilated by methods well known in the art, e.g. by use of a pre-perforated or air-permeable wrapper(s) (plugwrap), and/or laser perforation of wrapper(s) (plugwrap) and tipping overwrap. A ventilating full tipping overwrap may likewise be inherently air-permeable or provided with ventilation holes, and in ventilated products where both filter plugwrap and tipping overwrap are present ventilation through the overwrap will usually be in register with that through the plugwrap. Ventilation holes through a filter plugwrap, or through a tipping overwrap, or through both simultaneously, may be made by laser perforation during filter or filter smoking article production.
- According to the invention in a further aspect there is provided a multiple rod comprising a plurality of filters as described above and/or herein integrally joined end-to-end in a mirror image relationship.
- According to the invention in a further aspect there is provided the filter of the invention for use in a smoking article comprising one or more smokable material(s) other than tobacco. The smokable material other than tobacco may be prepared from a plant in the Cannabis genus, for example Cannabis sativa, for example Cannabis sativa sativa, Cannabis sativa indica or Cannabis sativa ruderalis or a mixture thereof. Additionally or alternatively the smokable material other than tobacco may comprise oregano and/or hemp.
- According to the invention in a further aspect there is provided the use of the filter of the invention for filtering the smoke of a smoking article comprising one or more smokable material(s) other than tobacco. The smokable material other than tobacco may be prepared from a plant in the Cannabis genus, for example Cannabis sativa, for example Cannabis sativa sativa, Cannabis sativa indica or Cannabis sativa ruderalis or a mixture thereof. Additionally or alternatively the smokable material other than tobacco may comprise oregano and/or hemp.
- According to the invention in a further aspect there is provided a smoking article comprising the smoking article filter of the first or second aspect of the invention joined to a wrapped rod comprising a smokable material other than tobacco. The smokable material other than tobacco may be prepared from a plant in the Cannabis genus, for example Cannabis sativa, for example Cannabis sativa sativa, Cannabis sativa indica or Cannabis sativa ruderalis or a mixture thereof. Additionally or alternatively the smokable material other than tobacco may comprise oregano and/or hemp.
- The present invention will now be illustrated with reference to the following Examples and the attached drawings.
-
FIG. 1 illustrates a smoking article filter in accordance with an embodiment of the invention. -
FIG. 2 illustrates a smoking article filter in accordance with an embodiment of the invention. -
FIG. 3 illustrates a cross section of a smoking article filter in accordance with an embodiment of the invention. -
FIG. 1 shows asmoking article filter 1 of 27 mm length and 24.5 mm circumference comprising a longitudinally extendingannular rod 2 of filtering material. The filtering material comprises cellulose acetate filamentary tow. Theannular rod 2 of filtering material defines a longitudinally extendingcylindrical channel 3 which extends along the full length of the filter. - Smoking
article filter 1 may be manufactured by pulling a continuous bundle of cellulose acetate filamentary tow, optionally with triacetin already applied thereto, through a fix die having an external diameter equal to that of the desired external diameter of the filter, the fix die including a protruding inner rod (or mandrel) extending through the die having a cross-sectional profile equal to that of the desired cross-section of thechannel 3. When the filamentary tow is pulled through the die, it passes around the inner rod such that on exiting the die, afilter 1 including anannular rod 2 of filtering material is formed, thefilter 1 having achannel 3 having a cross-sectional profile equivalent to that of the inner rod. Heated steam may be applied to the filamentary tow whilst the filamentary tow is in the die. The heated steam may be applied via a duct in the die. The heated steam may be for curing plasticizer applied to the filamentary tow (if present), allowing thefilter 1 to maintain the shape of the die after exiting the die. -
FIG. 2 shows asmoking article filter 101, of 27 mm length and 24.5 mm circumference comprising a longitudinally extendingannular rod 102 of filtering material. The filtering material comprises cellulose acetate filamentary tow. Theannular rod 102 of smoking filtering material includes alongitudinally extending channel 103 of semi-circular (D-shaped) cross-section which extends along the full length of the filter. Aflavour capsule 104 is provided within the filtering material which forms theannular rod 102, approximately half way along the full length of the rod. Smokingarticle filter 101 may be manufactured using the same method as used to manufacturesmoking article filter 1. The insertion offlavour capsule 104 into theannular rod 102 of filtering material may be carried out using methods well known in the art. -
FIG. 3 shows a cross-section of thesmoking article filter 101 ofFIG. 2 (denoted by the plane 105-105 shown inFIG. 2 ), showing the D-shaped cross section ofchannel 103 and thecapsule 104 within the filtering material.
Claims (26)
Priority Applications (15)
Application Number | Priority Date | Filing Date | Title |
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US15/722,086 US20190098928A1 (en) | 2017-10-02 | 2017-10-02 | Smoking article filter |
EP20212192.7A EP3804539A1 (en) | 2017-10-02 | 2018-10-01 | Smoking article filter |
US16/652,880 US20200229489A1 (en) | 2017-10-02 | 2018-10-01 | Smoking article filter |
BR112020006272-3A BR112020006272A2 (en) | 2017-10-02 | 2018-10-01 | nozzle or filter, multiple rod, nozzle or filter for use, use of a nozzle or filter, and, smoking article. |
CA3076302A CA3076302A1 (en) | 2017-10-02 | 2018-10-01 | Smoking article filter |
JP2020508315A JP2020535790A (en) | 2017-10-02 | 2018-10-01 | Smoking article filter |
EP18783398.3A EP3651591B1 (en) | 2017-10-02 | 2018-10-01 | Smoking article filter |
HUE18783398A HUE053170T2 (en) | 2017-10-02 | 2018-10-01 | Smoking article filter |
AU2018344403A AU2018344403A1 (en) | 2017-10-02 | 2018-10-01 | Smoking article filter |
PL18783398T PL3651591T3 (en) | 2017-10-02 | 2018-10-01 | Smoking article filter |
LTEP18783398.3T LT3651591T (en) | 2017-10-02 | 2018-10-01 | Smoking article filter |
PCT/EP2018/076578 WO2019068605A1 (en) | 2017-10-02 | 2018-10-01 | Smoking article filter |
ARP180102846A AR113266A1 (en) | 2017-10-02 | 2018-10-02 | SMOKING DEVICE FILTER |
CL2020000867A CL2020000867A1 (en) | 2017-10-02 | 2020-04-01 | Filter a smoking article. |
JP2021113125A JP2021177763A (en) | 2017-10-02 | 2021-07-07 | Smoking article filter |
Applications Claiming Priority (1)
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US15/722,086 US20190098928A1 (en) | 2017-10-02 | 2017-10-02 | Smoking article filter |
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US16/652,880 Continuation US20200229489A1 (en) | 2017-10-02 | 2018-10-01 | Smoking article filter |
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US20190098928A1 true US20190098928A1 (en) | 2019-04-04 |
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US15/722,086 Pending US20190098928A1 (en) | 2017-10-02 | 2017-10-02 | Smoking article filter |
US16/652,880 Pending US20200229489A1 (en) | 2017-10-02 | 2018-10-01 | Smoking article filter |
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US16/652,880 Pending US20200229489A1 (en) | 2017-10-02 | 2018-10-01 | Smoking article filter |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022089448A1 (en) * | 2020-10-27 | 2022-05-05 | 上海华宝生物科技有限公司 | Tobacco product and plant-flavored filter stick thereof, and preparation method therefor |
WO2023285597A1 (en) * | 2021-07-16 | 2023-01-19 | Philip Morris Products S.A. | Novel aerosol-generating substrate comprising oreganum species |
WO2023196830A1 (en) * | 2022-04-08 | 2023-10-12 | Eastman Chemical Company | Rod filters having high hardness values |
WO2023196840A1 (en) * | 2022-04-08 | 2023-10-12 | Eastman Chemical Company | Hollow acetate tube filters having high hardness values |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11930839B1 (en) | 2023-02-07 | 2024-03-19 | Dimitry Boss | Cigarette loading machines and method therefore |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4848375A (en) * | 1987-11-10 | 1989-07-18 | Philip Morris Incorporated | Filter cigarette |
US20070077660A1 (en) * | 2005-09-30 | 2007-04-05 | Glas Ronald J | Method for the detection of a cannabinoid, detection kit, and developing solvent |
US20100147317A1 (en) * | 2006-12-05 | 2010-06-17 | Gary Fallon | Tobacco Smoke Filter and Methods of Making the Same |
US20120291792A1 (en) * | 2009-11-12 | 2012-11-22 | Treadaway Ann R | Tobacco smoke filter |
US8353811B2 (en) * | 2007-05-30 | 2013-01-15 | Phillip Morris Usa Inc. | Smoking articles enhanced to deliver additives incorporated within electroprocessed microcapsules and nanocapsules, and related methods |
US20150257439A1 (en) * | 2012-09-28 | 2015-09-17 | Philip Morris Prodcts S.A. | Smoking article with reduced mouth end staining |
US20160106147A1 (en) * | 2013-06-13 | 2016-04-21 | Essentra Filter Products Development Co. Pte. Ltd | Tobacco smoke filter |
US20160165950A1 (en) * | 2014-12-12 | 2016-06-16 | Lorillard Tobacco Company | Reduction of carbon monoxide in mainstream cigarette smoke |
US20170112188A1 (en) * | 2015-10-22 | 2017-04-27 | John Ostrander | Wrapper For Enclosing Smokable Substances |
US20170273353A1 (en) * | 2014-08-27 | 2017-09-28 | Philip Morris Products S.A. | Method for applying heat conducting patches to a material web |
US20170273349A1 (en) * | 2016-03-28 | 2017-09-28 | David Harold Moore | Cannabis-Hemp Smoking Blend |
US20180000153A1 (en) * | 2016-06-29 | 2018-01-04 | Essentra Filter Products Development Co Pte Ltd. | Shaped elements for smoking devices |
-
2017
- 2017-10-02 US US15/722,086 patent/US20190098928A1/en active Pending
-
2018
- 2018-10-01 US US16/652,880 patent/US20200229489A1/en active Pending
- 2018-10-02 AR ARP180102846A patent/AR113266A1/en active IP Right Grant
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4848375A (en) * | 1987-11-10 | 1989-07-18 | Philip Morris Incorporated | Filter cigarette |
US20070077660A1 (en) * | 2005-09-30 | 2007-04-05 | Glas Ronald J | Method for the detection of a cannabinoid, detection kit, and developing solvent |
US20100147317A1 (en) * | 2006-12-05 | 2010-06-17 | Gary Fallon | Tobacco Smoke Filter and Methods of Making the Same |
US8353811B2 (en) * | 2007-05-30 | 2013-01-15 | Phillip Morris Usa Inc. | Smoking articles enhanced to deliver additives incorporated within electroprocessed microcapsules and nanocapsules, and related methods |
US20120291792A1 (en) * | 2009-11-12 | 2012-11-22 | Treadaway Ann R | Tobacco smoke filter |
US20150257439A1 (en) * | 2012-09-28 | 2015-09-17 | Philip Morris Prodcts S.A. | Smoking article with reduced mouth end staining |
US20160106147A1 (en) * | 2013-06-13 | 2016-04-21 | Essentra Filter Products Development Co. Pte. Ltd | Tobacco smoke filter |
US20170273353A1 (en) * | 2014-08-27 | 2017-09-28 | Philip Morris Products S.A. | Method for applying heat conducting patches to a material web |
US20160165950A1 (en) * | 2014-12-12 | 2016-06-16 | Lorillard Tobacco Company | Reduction of carbon monoxide in mainstream cigarette smoke |
US20170112188A1 (en) * | 2015-10-22 | 2017-04-27 | John Ostrander | Wrapper For Enclosing Smokable Substances |
US20170273349A1 (en) * | 2016-03-28 | 2017-09-28 | David Harold Moore | Cannabis-Hemp Smoking Blend |
US20180000153A1 (en) * | 2016-06-29 | 2018-01-04 | Essentra Filter Products Development Co Pte Ltd. | Shaped elements for smoking devices |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022089448A1 (en) * | 2020-10-27 | 2022-05-05 | 上海华宝生物科技有限公司 | Tobacco product and plant-flavored filter stick thereof, and preparation method therefor |
WO2023285597A1 (en) * | 2021-07-16 | 2023-01-19 | Philip Morris Products S.A. | Novel aerosol-generating substrate comprising oreganum species |
WO2023196830A1 (en) * | 2022-04-08 | 2023-10-12 | Eastman Chemical Company | Rod filters having high hardness values |
WO2023196840A1 (en) * | 2022-04-08 | 2023-10-12 | Eastman Chemical Company | Hollow acetate tube filters having high hardness values |
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US20200229489A1 (en) | 2020-07-23 |
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