EP2636319A2 - Filtres à fumée pour dispositifs à fumer avec des masses poreuses ayant une charge de particules de carbone et chute de pression encapsulée - Google Patents

Filtres à fumée pour dispositifs à fumer avec des masses poreuses ayant une charge de particules de carbone et chute de pression encapsulée Download PDF

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Publication number
EP2636319A2
EP2636319A2 EP13168042.3A EP13168042A EP2636319A2 EP 2636319 A2 EP2636319 A2 EP 2636319A2 EP 13168042 A EP13168042 A EP 13168042A EP 2636319 A2 EP2636319 A2 EP 2636319A2
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EP
European Patent Office
Prior art keywords
nanoparticle
porous mass
filter
carbon
smoking device
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.)
Withdrawn
Application number
EP13168042.3A
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German (de)
English (en)
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EP2636319A3 (fr
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designation of the inventor has not yet been filed The
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Acetate International LLC
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Celanese Acetate LLC
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Publication date
Priority claimed from US12/981,909 external-priority patent/US9386803B2/en
Priority claimed from PCT/US2011/043269 external-priority patent/WO2012047348A1/fr
Application filed by Celanese Acetate LLC filed Critical Celanese Acetate LLC
Publication of EP2636319A2 publication Critical patent/EP2636319A2/fr
Publication of EP2636319A3 publication Critical patent/EP2636319A3/fr
Withdrawn legal-status Critical Current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
    • 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
    • A24D3/062—Use of materials for tobacco smoke filters characterised by structural features
    • A24D3/066—Use of materials for tobacco smoke filters characterised by structural features in the form of foam or having cellular structure
    • 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
    • A24B15/18—Treatment of tobacco products or tobacco substitutes
    • A24B15/28—Treatment of tobacco products or tobacco substitutes by chemical substances
    • A24B15/285—Treatment of tobacco products or tobacco substitutes by chemical substances characterised by structural features, e.g. particle shape or size
    • A24B15/286—Nanoparticles
    • 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
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0204—Preliminary operations before the filter rod forming process, e.g. crimping, blooming
    • A24D3/0212—Applying additives to filter materials
    • A24D3/0216—Applying additives to filter materials the additive being in the form of capsules, beads or the like
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/16—Use of materials for tobacco smoke filters of inorganic materials
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/16—Use of materials for tobacco smoke filters of inorganic materials
    • A24D3/163—Carbon

Definitions

  • the instant application is directed to a smoke filter for a smoking device having an element that enhances the smoke flowing thereover.
  • the World Health Organization has set forth recommendations for the reduction of certain components of tobacco smoke in WHO Technical Report Series No. 951, The Scientific Basis of Tobacco Product Regulation, World Health Organization (2008 ). Therein, the WHO recommends that certain components, such as acetaldehyde, acrolein, benzene, benzoapyrene, 1,3-butadiene, and formaldehyde, among others, be reduced to a level below 125% of the median values of the data set.
  • certain components such as acetaldehyde, acrolein, benzene, benzoapyrene, 1,3-butadiene, and formaldehyde, among others.
  • WO 2008/142420 discloses a cigarette filter where the absorbent material (e.g ., activated carbon) is coated with a polymer material (e.g ., 0.4-5 wt % polyethylene).
  • WO 2009/112591 discloses a cigarette filter that produces little to no dust with a composite material comprising at least one polymer (e.g ., polyethylene) and at least one other compound (e.g ., activated carbon).
  • Carbon block technology where activated carbon is formed into a monolithic porous block with a binder is known.
  • U.S. Patent Nos. 4,753,728 , 6,770,736 , 7,049,382 , 7,160,453 , and 7,112,280 carbon block technology, using low melt flow polymer binders, are principally used as water filters.
  • the instant application is directed to a filter comprising a porous mass having an element that enhances the smoke flowing thereover.
  • the filter is incorporated within a smoking device.
  • the present invention provides a filter comprising: a porous mass that comprises an active particle and a binder particle, wherein the active particle comprises an element selected from the group consisting of: a nano-scaled carbon particle, a carbon nanotube having at least one wall, a carbon nanohorn, a bamboo-like carbon nanostructure, a fullerene, a fullerene aggregate, graphene, a few layer graphene, oxidized graphene, a iron oxide nanoparticle, a nanoparticle, a metal nanoparticle, a gold nanoparticle, a silver nanoparticle, a metal oxide nanoparticle, an alumina nanoparticle, a magnetic nanoparticle, a paramagnetic nanoparticle, a superparamagnetic nanoparticle, a gadolinium oxide nanoparticle, a hematite nanoparticle, a magnetite nanoparticle, a gado-nanotube, an endofullerene, Gd@C60, a core-
  • the present invention provides a smoking device comprising: a housing for a smokeable substance; and a filter comprising a porous mass that comprises an active particle and a binder particle, wherein the active particle comprises an element selected from the group consisting of: a nano-scaled carbon particle, a carbon nanotube having at least one wall, a carbon nanohorn, a bamboo-like carbon nanostructure, a fullerene, a fullerene aggregate, graphene, a few layer graphene, oxidized graphene, a iron oxide nanoparticle, a nanoparticle, a metal nanoparticle, a gold nanoparticle, a silver nanoparticle, a metal oxide nanoparticle, an alumina nanoparticle, a magnetic nanoparticle, a paramagnetic nanoparticle, a superparamagnetic nanoparticle, a gadolinium oxide nanoparticle, a hematite nanoparticle, a magnetite nanoparticle, a gado-nanotube, an
  • the present invention provides a smoking device filter comprising: at least two neighboring in-series sections, wherein a first section comprises a porous mass that comprises an active particle and a binder particle, wherein the active particle comprises an element selected from the group consisting of: a nano-scaled carbon particle, a carbon nanotube having at least one wall, a carbon nanohorn, a bamboo-like carbon nanostructure, a fullerene, a fullerene aggregate, graphene, a few layer graphene, oxidized graphene, a iron oxide nanoparticle, a nanoparticle, a metal nanoparticle, a gold nanoparticle, a silver nanoparticle, a metal oxide nanoparticle, an alumina nanoparticle, a magnetic nanoparticle, a paramagnetic nanoparticle, a superparamagnetic nanoparticle, a gadolinium oxide nanoparticle, a hematite nanoparticle, a magnetite nanoparticle, a gado-nano
  • the present invention provides a smoking device comprising: a filter that comprises a porous mass that comprises an active particle and a binder particle, wherein the active particle comprises an element selected from the group consisting of: a nano-scaled carbon particle, a carbon nanotube having at least one wall, a carbon nanohorn, a bamboo-like carbon nanostructure, a fullerene, a fullerene aggregate, graphene, a few layer graphene, oxidized graphene, a iron oxide nanoparticle, a nanoparticle, a metal nanoparticle, a gold nanoparticle, a silver nanoparticle, a metal oxide nanoparticle, an alumina nanoparticle, a magnetic nanoparticle, a paramagnetic nanoparticle, a superparamagnetic nanoparticle, a gadolinium oxide nanoparticle, a hematite nanoparticle, a magnetite nanoparticle, a gado-nanotube, an endofullerene, Gd@C
  • the present invention provides a pack of filters comprising: a pack comprising at least one filter, wherein the filter comprises a porous mass that comprises an active particle and a binder particle, and wherein the active particle comprises an element selected from the group consisting of: a nano-scaled carbon particle, a carbon nanotube having at least one wall, a carbon nanohorn, a bamboo-like carbon nanostructure, a fullerene, a fullerene aggregate, graphene, a few layer graphene, oxidized graphene, a iron oxide nanoparticle, a nanoparticle, a metal nanoparticle, a gold nanoparticle, a silver nanoparticle, a metal oxide nanoparticle, an alumina nanoparticle, a magnetic nanoparticle, a paramagnetic nanoparticle, a superparamagnetic nanoparticle, a gadolinium oxide nanoparticle, a hematite nanoparticle, a magnetite nanoparticle, a gado-nanotube,
  • the present invention provides a pack of smoking devices comprising: a pack comprising at least one smoking device that comprises a filter that comprises a porous mass that comprises an active particle and a binder particle, wherein the active particle comprises an element selected from the group consisting of: a nano-scaled carbon particle, a carbon nanotube having at least one wall, a carbon nanohorn, a bamboo-like carbon nanostructure, a fullerene, a fullerene aggregate, graphene, a few layer graphene, oxidized graphene, a iron oxide nanoparticle, a nanoparticle, a metal nanoparticle, a gold nanoparticle, a silver nanoparticle, a metal oxide nanoparticle, an alumina nanoparticle, a magnetic nanoparticle, a paramagnetic nanoparticle, a superparamagnetic nanoparticle, a gadolinium oxide nanoparticle, a hematite nanoparticle, a magnetite nanoparticle, a gado-nano
  • the present invention provides a carton of smoking device packs comprising: a carton comprising at least one pack, the pack comprising at least one smoking device that comprises a filter that comprises a porous mass that comprises an active particle and a binder particle, wherein the active particle comprises an element selected from the group consisting of: a nano-scaled carbon particle, a carbon nanotube having at least one wall, a carbon nanohorn, a bamboo-like carbon nanostructure, a fullerene, a fullerene aggregate, graphene, a few layer graphene, oxidized graphene, a iron oxide nanoparticle, a nanoparticle, a metal nanoparticle, a gold nanoparticle, a silver nanoparticle, a metal oxide nanoparticle, an alumina nanoparticle, a magnetic nanoparticle, a paramagnetic nanoparticle, a superparamagnetic nanoparticle, a gadolinium oxide nanoparticle, a hematite nanoparticle, a magnetite nanoparticle
  • the present invention provides a method of smoking a smoking device, the method comprising: heating or lighting a smoking device to form smoke, wherein the smoking device comprises at least one filter section comprising a porous mass that comprises an active particle and a binder particle, and wherein the active particle comprises an element selected from the group consisting of: a nano-scaled carbon particle, a carbon nanotube having at least one wall, a carbon nanohorn, a bamboo-like carbon nanostructure, a fullerene, a fullerene aggregate, graphene, a few layer graphene, oxidized graphene, a iron oxide nanoparticle, a nanoparticle, a metal nanoparticle, a gold nanoparticle, a silver nanoparticle, a metal oxide nanoparticle, an alumina nanoparticle, a magnetic nanoparticle, a paramagnetic nanoparticle, a superparamagnetic nanoparticle, a gadolinium oxide nanoparticle, a hematite nanoparticle, a magnetit
  • the present invention provides a method of making a porous mass, the method comprising: providing a blend comprising active particles and a binder particles; wherein the binder particles comprise a thermoplastic and the active particles comprise an element selected from the group consisting of: a nano-scaled carbon particle, a carbon nanotube having at least one wall, a carbon nanohorn, a bamboo-like carbon nanostructure, a fullerene, a fullerene aggregate, graphene, a few layer graphene, oxidized graphene, a iron oxide nanoparticle, a nanoparticle, a metal nanoparticle, a gold nanoparticle, a silver nanoparticle, a metal oxide nanoparticle, an alumina nanoparticle, a magnetic nanoparticle, a paramagnetic nanoparticle, a superparamagnetic nanoparticle, a gadolinium oxide nanoparticle, a hematite nanoparticle, a magnetite nanoparticle, a gado-nanotube,
  • the present invention provides a method of making a porous mass, the method comprising: providing a blend comprising active particles and binder particles, wherein the binder particles comprise a thermoplastic and the active particles comprise an element selected from the group consisting of: a nano-scaled carbon particle, a carbon nanotube having at least one wall, a carbon nanohorn, a bamboo-like carbon nanostructure, a fullerene, a fullerene aggregate, graphene, a few layer graphene, oxidized graphene, a iron oxide nanoparticle, a nanoparticle, a metal nanoparticle, a gold nanoparticle, a silver nanoparticle, a metal oxide nanoparticle, an alumina nanoparticle, a magnetic nanoparticle, a paramagnetic nanoparticle, a superparamagnetic nanoparticle, a gadolinium oxide nanoparticle, a hematite nanoparticle, a magnetite nanoparticle, a gado-nanotube, an end
  • the present invention provides a method for making a filter rod, the method comprising: providing a first filter section; providing at least one second filter section, wherein the second filter section comprises a porous mass that comprises an active particle and a binder particle, and wherein the active particle comprises an element selected from the group consisting of: a nano-scaled carbon particle, a carbon nanotube having at least one wall, a carbon nanohorn, a bamboo-like carbon nanostructure, a fullerene, a fullerene aggregate, graphene, a few layer graphene, oxidized graphene, a iron oxide nanoparticle, a nanoparticle, a metal nanoparticle, a gold nanoparticle, a silver nanoparticle, a metal oxide nanoparticle, an alumina nanoparticle, a magnetic nanoparticle, a paramagnetic nanoparticle, a superparamagnetic nanoparticle, a gadolinium oxide nanoparticle, a hematite nanoparticle, a magnetite nano
  • the present invention provides a method comprising: providing a container that comprises at least a plurality of first filter section pieces; providing a second container comprising at least a plurality of second filter section pieces, wherein the second filter section pieces comprise a porous mass that comprises an active particle and a binder particle, and wherein the active particle comprises an element selected from the group consisting of: a nano-scaled carbon particle, a carbon nanotube having at least one wall, a carbon nanohorn, a bamboo-like carbon nanostructure, a fullerene, a fullerene aggregate, graphene, a few layer graphene, oxidized graphene, a iron oxide nanoparticle, a nanoparticle, a metal nanoparticle, a gold nanoparticle, a silver nanoparticle, a metal oxide nanoparticle, an alumina nanoparticle, a magnetic nanoparticle, a paramagnetic nanoparticle, a superparamagnetic nanoparticle, a gadolinium oxide nanoparticle, a
  • the present invention provides a method of making a smoking device, the method comprising: providing a filter rod comprising at least one filter section that comprises a porous mass that comprises an active particle and a binder particle, wherein the active particle comprises an element selected from the group consisting of: a nano-scaled carbon particle, a carbon nanotube having at least one wall, a carbon nanohorn, a bamboo-like carbon nanostructure, a fullerene, a fullerene aggregate, graphene, a few layer graphene, oxidized graphene, a iron oxide nanoparticle, a nanoparticle, a metal nanoparticle, a gold nanoparticle, a silver nanoparticle, a metal oxide nanoparticle, an alumina nanoparticle, a magnetic nanoparticle, a paramagnetic nanoparticle, a superparamagnetic nanoparticle, a gadolinium oxide nanoparticle, a hematite nanoparticle, a magnetite nanoparticle, a gado-
  • the present invention provides a method of making a smoking device, the method comprising: providing a tobacco column; joining a filter to the tobacco column, wherein the filter comprises a porous mass having an active particle and a binder particle, wherein the active particle comprises an element selected from the group consisting of: a nano-scaled carbon particle, a carbon nanotube having at least one wall, a carbon nanohorn, a bamboo-like carbon nanostructure, a fullerene, a fullerene aggregate, graphene, a few layer graphene, oxidized graphene, a iron oxide nanoparticle, a nanoparticle, a metal nanoparticle, a gold nanoparticle, a silver nanoparticle, a metal oxide nanoparticle, an alumina nanoparticle, a magnetic nanoparticle, a paramagnetic nanoparticle, a superparamagnetic nanoparticle, a gadolinium oxide nanoparticle, a hematite nanoparticle, a magnetite nanoparticle,
  • the present invention provides an apparatus comprising: a container area comprising at least a plurality of first filter section pieces; a second container area comprising at least a plurality of second filter section pieces, wherein the second filter section pieces comprises a porous mass that comprises an active particle and a binder particle, wherein the active particle comprises an element selected from the group consisting of: a nano-scaled carbon particle, a carbon nanotube having at least one wall, a carbon nanohorn, a bamboo-like carbon nanostructure, a fullerene, a fullerene aggregate, graphene, a few layer graphene, oxidized graphene, a iron oxide nanoparticle, a nanoparticle, a metal nanoparticle, a gold nanoparticle, a silver nanoparticle, a metal oxide nanoparticle, an alumina nanoparticle, a magnetic nanoparticle, a paramagnetic nanoparticle, a superparamagnetic nanoparticle, a gadolinium oxide nanoparticle, a hemati
  • the present invention provides a smoking device filter comprising: a filter section, the filter section comprising a porous mass that comprises an active particle and a binder particle, wherein the porous mass has a void volume of about 40% to about 90%.
  • the present invention provides a smoking device comprising: a housing for a smokeable substance, and a filter comprising a porous mass that comprises an active particle and a binder particle, wherein the porous mass has a void volume of about 40% to about 90%.
  • the present invention provides a smoking device filter comprising: at least two neighboring longitudinal in-series sections, wherein a first section comprises a porous mass that comprises an active particle and a binder particle, wherein the porous mass has a void volume of about 40% to about 90%; and wherein a second section comprises a section that is selected from the group consisting of: a cavity, cellulose acetate, polypropylene, polyethylene, polyolefin tow, polypropylene tow, polyethylene terephthalate, polybutylene terephthalate, random oriented acetate, a paper, a corrugated paper, a concentric filter, carbon-on-tow, silica, magnesium silicate, a zeolite, a molecular sieve, a metallocene, a salt, a catalyst, sodium chloride, nylon, a flavorant, tobacco, a capsule, cellulose, a cellulosic derivative, a catalytic converter, iodine pent
  • the present invention provides a smoking device comprising: a filter that comprises a porous mass that comprises an active particle and a binder particle, wherein the porous mass has a void volume of about 40% to about 90%; and a housing capable of maintaining a smokeable substance in fluid contact with the filter.
  • the present invention provides a pack of filters comprising: a pack comprising at least one filter that comprises a porous mass that comprises an active particle and a binder particle, and wherein the porous mass has a void volume of about 40% to about 90%.
  • the present invention provides a pack of smoking devices comprising: a pack comprising at least one smoking device that comprises a filter that comprises a porous mass that comprises an active particle and a binder particle, wherein the porous mass has a void volume of about 40% to about 90%.
  • the present invention provides a smoking device carton comprising: a container comprising at least one pack that comprises at least one smoking device, wherein the smoking device comprises a filter that comprises a porous mass that comprises an active particle and a binder particle, and wherein the porous mass has a void volume of about 40% to about 90%.
  • the present invention provides a method of smoking a smoking device, the method comprising: heating or lighting a smoking device to form smoke, wherein the smoking device comprises at least one filter section comprising a porous mass that comprises an active particle and a binder particle, and wherein the porous mass has a void volume of about 40% to about 90%; drawing the smoke through the smoking device, wherein the filter section reduces the presence of at least one component in the smoke as compared to a filter without the porous mass.
  • the present invention provides a method of making a filter, the method comprising: providing a blend comprising active particles and binder particles; placing the blend in a mold; heating the blend in the mold to a temperature at or above the melting point of the binder particles so as to form a porous mass, wherein the porous mass has a void volume of about 40% to about 90%; removing the porous mass from the mold; and forming a filter comprising the porous mass.
  • the present invention provides a method of making a smoking device filter, the method comprising: providing a blend comprising active particles and binder particles; heating the blend; extruding the blend while at an elevated temperature so as to form a porous mass, wherein the porous mass has a void volume of about 40% to about 90%; and forming a filter comprising the porous mass.
  • the present invention provides a method for making a smoking device, the method comprising: providing a first filter section; providing at least one second filter section, wherein the second filter section comprises a porous mass that comprises an active particle and a binder particle, and wherein the porous mass has a void volume of about 40% to about 90%; joining the first filter section and at least one second filter section so as to form a filter rod; and joining at least a portion of the filter rod with a tobacco column to form a smoking device.
  • the present invention provides a method of making a filter rod, the method comprising: providing a container that comprises at least a plurality of first filter section pieces; providing a second container comprising at least a plurality of second filter section pieces, wherein the second filter section pieces comprise a porous mass that comprises an active particle and a binder particle, and wherein the porous mass has a void volume of about 40% to about 90%; joining a first filter section piece and a second filter section piece end-to-end along the longitudinal axis of the first filter section piece and the second filter section piece to form an unwrapped filter rod; and wrapping the first filter section piece and the second filter section piece with a paper to form a filter rod.
  • the present invention provides a method of making a smoking device, the method comprising: providing a filter rod comprising at least one filter section that comprises a porous mass that comprises an active particle and a binder particle, wherein the porous mass has a void volume of about 40% to about 90%; providing a tobacco column; cutting the filter rod transverse to its longitudinal axis through the center of the rod to form at least two smoking device filters having at least one filter section that comprises a porous mass that comprises an active particle and a binder particle; and joining at least one of the smoking device filters to the tobacco column along the longitudinal axis of the filter and the longitudinal axis of the tobacco column to form at least one smoking device.
  • the present invention provides a method of making a smoking device, the method comprising: providing a tobacco column; joining a filter to the tobacco column, wherein the filter comprises a porous mass that comprises an active particle and a binder particle, and wherein the porous mass has a void volume of about 40% to about 90%.
  • the present invention provides an apparatus comprising: a container area comprising at least a plurality of first filter section pieces; a second container area comprising at least a plurality of second filter section pieces, wherein the second filter section pieces comprises a porous mass that comprises an active particle and a binder particle, wherein the porous mass has a void volume of about 40% to about 90%; a joiner area wherein a first filter section piece and a second filter section piece are joined; a wrapping area wherein the first filter section piece and the second filter section piece are wrapped with a paper to form a smoking device filter; and a conveyor to transport the smoking device filter to a subsequent area for storage or use.
  • the present invention provides a filter comprising: a porous mass that comprises an active particle and a binder particle, wherein the porous mass has an active particle loading of at least about 1 mg/mm and an encapsulated pressure drop of about 20 mm of water or less per mm of porous mass, and wherein the active particle is not carbon.
  • the present invention provides a smoking device comprising: a smokeable substance; and a filter comprising a porous mass that comprises an active particle and a binder particle, wherein the porous mass has an active particle loading of at least about 1 mg/mm and an encapsulated pressure drop of about 20 mm of water or less per mm of porous mass.
  • the present invention provides a smoking device filter comprising: at least two neighboring longitudinal in-series filter sections, wherein a first filter section comprises a porous mass that comprises an active particle and a binder particle, wherein the porous mass has an active particle loading of at least about 1 mg/mm and an encapsulated pressure drop of about 20 mm of water or less per mm of porous mass; and wherein a second filter section comprises a section that is selected from the group consisting of: a cavity, cellulose acetate, polypropylene, polyethylene, polyolefin tow, polypropylene tow, polyethylene terephthalate, polybutylene terephthalate, random oriented acetate, a paper, a corrugated paper, a concentric filter, carbon-on-tow, silica, magnesium silicate, a zeolite, a molecular sieve, a metallocene, a salt, a catalyst, sodium chloride, nylon, a flavorant, tobacco, a
  • the present invention provides a smoking device comprising: a filter that comprises a porous mass that comprises an active particle and a binder particle, wherein the porous mass has an active particle loading of at least about 1 mg/mm and an encapsulated pressure drop of about 20 mm of water or less per mm of porous mass; and a housing capable of maintaining a smokeable substance in fluid contact with the filter.
  • the present invention provides a pack of filters comprising: a pack comprising at least one filter, wherein the filter comprises a porous mass that comprises an active particle and a binder particle, and wherein the porous mass has an active particle loading of at least about 1 mg/mm and an encapsulated pressure drop of about 20 mm of water or less per mm of porous mass.
  • the present invention provides a pack comprising: a container comprising at least one smoking device that comprises a filter, the filter comprising a porous mass that comprises an active particle and a binder particle, and wherein the porous mass has an active particle loading of at least about 1 mg/mm and an encapsulated pressure drop of about 20 mm of water or less per mm of porous mass.
  • the present invention provides a carton of smoking device packs comprising: a container comprising at least one pack that comprises at least one smoking device that comprises a porous mass that comprises a filter that comprises an active particle and a binder particle, and wherein the porous mass has an active particle loading of at least about 1 mg/mm and an encapsulated pressure drop of about 20 mm of water or less per mm of porous mass.
  • the present invention provides a method of smoking a smoking device, the method comprising: heating or lighting a smoking device to form smoke, wherein the smoking device comprise at least one filter section comprising a porous mass that comprises an active particle and a binder particle, and wherein the porous mass has an active particle loading of at least about 1 mg/mm and an encapsulated pressure drop of about 20 mm of water or less per mm of porous mass; and drawing the smoke through the smoking device, wherein the filter section reduces the presence of at least one component in the smoke as compared to a filter without the porous mass.
  • the present invention provides a method of making a filter, the method comprising: providing a blend comprising active particles and binder particles; placing the blend in a mold; heating the blend in the mold to a temperature at or above the melting point of the binder particle so as to form a porous mass, wherein the porous mass has an active particle loading of at least about 1 mg/mm and an encapsulated pressure drop of about 20 mm of water or less per mm of porous mass; removing the porous mass from the mold; and forming a filter comprising the porous mass.
  • the present invention provides a method of making a smoking device filter, the method comprising: providing a blend comprising active particles and binder particles; heating the blend; extruding the blend while at an elevated temperature so as to form a porous mass, wherein the porous mass has an active particle loading of at least about 1 mg/mm and an encapsulated pressure drop of about 20 mm of water or less per mm of porous mass; and forming a filter comprising the porous mass.
  • the present invention provides a method for producing a smoking device, the method comprising: providing a first filter section; providing at least one second filter section, wherein the second filter section comprises a porous mass that comprises an active particle and a binder particle, and wherein the porous mass has an active particle loading of at least about 1 mg/mm and an encapsulated pressure drop of about 20 mm of water or less per mm of porous mass; joining the first filter section and at least one second filter section so as to form a filter rod; and joining at least a portion of the filter rod with a tobacco column to form a smoking device.
  • the present invention provides a method of making a filter rod, the method comprising: providing a container that comprises at least a plurality of first filter section pieces; providing a second container comprising at least a plurality of second filter section pieces, wherein the second filter section pieces comprise a porous mass that comprises an active particle and a binder particle, and wherein the porous mass has an active particle loading of at least about 1 mg/mm and an encapsulated pressure drop of about 20 mm of water or less per mm of porous mass; joining a first filter section piece and a second filter section piece end-to-end along the longitudinal axis of the first filter section piece and the second filter section piece to form an unwrapped filter rod; wrapping the first filter section piece and the second filter section piece with a paper to form a filter rod; and transporting the filter rod to a subsequent area for storage or use.
  • the present invention provides a method of making a smoking device, the method comprising: providing a filter rod comprising at least one filter section that comprises a porous mass that comprises an active particle and a binder particle, wherein the porous mass has an active particle loading of at least about 1 mg/mm and an encapsulated pressure drop of about 20 mm of water or less per mm of porous mass; providing a tobacco column; cutting the filter rod transverse to its longitudinal axis through the center of the rod to form at least two smoking device filters having at least one filter section that comprises a porous mass that comprises an active particle and a binder particle; and joining at least one of the smoking device filters to the tobacco column along the longitudinal axis of the filter and the longitudinal axis of the tobacco column to form at least one smoking device.
  • the present invention provides a method of making a smoking device, the method comprising: providing a tobacco column; joining a filter to the tobacco column, wherein the filter comprises an active particle and a binder particle, wherein the porous mass has an active particle loading of at least about 1 mg/mm and an encapsulated pressure drop of about 20 mm of water or less per mm of porous mass.
  • the present invention provides an apparatus comprising: a container area comprising at least a plurality of first filter section pieces; a second container area comprising at least a plurality of second filter section pieces, wherein the second filter section pieces comprises a porous mass that comprises an active particle and a binder particle, wherein the porous mass has an active particle loading of at least about 1 mg/mm and an encapsulated pressure drop of about 20 mm of water or less per mm of porous mass; a joiner area wherein a first filter section piece and a second filter section piece are joined; a wrapping area wherein the first filter section piece and the second filter section piece are wrapped with a paper to form a smoking device filter; and a conveyor to transport the smoking device filter to a subsequent area for storage or use.
  • the present invention provides a filter comprising: a porous mass that comprises an active particle and a binder particle, wherein the active particle comprises carbon and the porous mass has a carbon loading of at least about 6 mg/mm and an encapsulated pressure drop of about 20 mm of water or less per mm of porous mass.
  • the present invention provides a smoking device comprising: a smokeable substance; and a filter comprising a porous mass that comprises an active particle and a binder particle, wherein the active particle comprises carbon and the porous mass has a carbon loading of at least about 6 mg/mm and an encapsulated pressure drop of about 20 mm of water or less per mm of porous mass.
  • the present invention provides a smoking device filter comprising: at least two neighboring longitudinal in-series sections, wherein a first section comprises a porous mass that comprises an active particle and a binder particle; wherein the active particle is carbon and the porous mass has a carbon loading of at least about 6 mg/mm and an encapsulated pressure drop of about 20 mm of water or less per mm of porous mass; and wherein a second section comprises a section that is selected from the group consisting of: a cavity, cellulose acetate, polypropylene, polyethylene, polyolefin tow, polypropylene tow, polyethylene terephthalate, polybutylene terephthalate, random oriented acetate, a paper, a corrugated paper, a concentric filter, carbon-on-tow, silica, magnesium silicate, a zeolite, a molecular sieve, a metallocene, a salt, a catalyst, sodium chloride, nylon, a flavorant, tobacco
  • the present invention provides a smoking device comprising: a filter that comprises a porous mass that has a carbon loading of at least about 6 mg/mm and an encapsulated pressure drop of about 20 mm of water or less per mm of porous mass; and a housing capable of maintaining a smokeable substance in fluid contact with the filter.
  • the present invention provides a pack of filters comprising: a pack comprising at least one filter, the filter comprising a porous mass that has a carbon loading of at least about 6 mg/mm and an encapsulated pressure drop of about 20 mm of water or less per mm of porous mass.
  • the present invention provides a pack of smoking devices comprising: a pack comprising at least one smoking device that comprises a filter, wherein the filter comprises a porous mass that comprises an active particle and a binder particle, and wherein the active particle comprises carbon, and the porous mass has a carbon loading of at least about 6 mg/mm and an encapsulated pressure drop of about 20 mm of water or less per mm of porous mass.
  • the present invention provides a carton of smoking device packs comprising: a container comprising at least one pack that comprises at least one smoking device, the smoking device comprising a filter that comprises a porous mass, the porous mass comprising an active particle and a binder particle, and wherein the active particle comprises carbon and the porous mass has a carbon loading of at least about 6 mg/mm and an encapsulated pressure drop of about 20 mm of water or less per mm of porous mass.
  • the present invention provides a method of smoking a smoking device, the method comprising: heating or lighting a smoking device to form smoke, wherein the smoking device comprises a smokeable substance and at least one filter section comprising a porous mass that comprises an active particle and a binder particle, wherein the active particle comprises carbon, and the porous mass has a carbon loading of at least about 6 mg/mm and an encapsulated pressure drop of about 20 mm of water or less per mm of porous mass; drawing the smoke through the smoking device to form a smoke stream; and allowing the filter section to at least reduce the presence of at least one component in the smoke stream as compared to a filter without the porous mass.
  • the present invention provides a method of making a filter, the method comprising: providing a blend comprising active particles and binder particles; placing the blend in a mold; heating the blend in the mold to a temperature at or above the melting point of the binder particles so as to form a porous mass, wherein the active particle comprises carbon and the porous mass has a carbon loading of at least about 6 mg/mm and an encapsulated pressure drop of about 20 mm of water or less per mm of porous mass; removing the porous mass from the mold; and forming a filter comprising the porous mass.
  • the present invention provides a method of making a smoking device filter, the method comprising: providing a blend comprising active particles and binder particles; heating the blend; extruding the blend while at an elevated temperature so as to form a porous mass, wherein the active particles comprise carbon and the porous mass has a carbon loading of at least about 6 mg/mm and an encapsulated pressure drop of about 20 mm of water or less per mm of porous mass; forming a smoking device filter comprising the porous mass.
  • the present invention provides a method for producing a smoking device, the method comprising: providing a first filter section; providing at least one second filter section, wherein the second filter section comprises a porous mass that has a carbon loading of at least about 6 mg/mm and an encapsulated pressure drop of about 20 mm of water or less per mm of porous mass; joining the first filter section and at least one second filter section longitudinally so as to form a filter rod; and joining at least a portion of the filter rod with a tobacco column to form a smoking device.
  • the present invention provides a method of making a filter rod, the method comprising: providing a container that comprises at least a plurality of first filter section pieces; providing a second container comprising at least a plurality of second filter section pieces, wherein the second filter section pieces comprise a porous mass that has a carbon loading of at least about 6 mg/mm and an encapsulated pressure drop of about 20 mm of water or less per mm of porous mass; joining a first filter section piece and a second filter section piece end-to-end along the longitudinal axis of the first filter section piece and the second filter section piece to form an unwrapped filter rod; and wrapping the first filter section piece and the second filter section piece with a paper to form a filter rod.
  • the present invention provides a method of making a smoking device, the method comprising: providing a filter rod comprising at least one filter section that comprises a porous mass that has a carbon loading of at least about 6 mg/mm and an encapsulated pressure drop of about 20 mm of water or less per mm of porous mass; providing a tobacco column; cutting the filter rod transverse to its longitudinal axis to form at least two smoking device filters having at least one filter section that comprises a porous mass; and joining at least one of the smoking device filters to the tobacco column along the longitudinal axis of the filter and the longitudinal axis of the tobacco column to form at least one smoking device.
  • the present invention provides a method of making a smoking device, the method comprising: providing a tobacco column; and joining a filter to the tobacco column, the filter comprising having a carbon loading of at least about 6 mg/mm and an encapsulated pressure drop of about 20 mm of water or less per mm of porous mass.
  • the present invention provides an apparatus comprising: a container area comprising at least a plurality of first filter section pieces; a second container area comprising at least a plurality of second filter section pieces, wherein the second filter section pieces comprises a porous mass that comprises an active particle and a binder particle, wherein the active particle comprises carbon and the porous mass has a carbon loading of at least about 6 mg/mm and an encapsulated pressure drop of about 20 mm of water or less per mm of porous mass; a joiner area wherein a first filter section piece and a second filter section piece are joined along their longitudinal axes; a wrapping area wherein the first filter section piece and the second filter section piece are wrapped with a paper to form a smoking device filter; and a conveyor to transport the smoking device filter to a subsequent area for storage or use.
  • the present invention provides a compressible wrap surrounding the longitudinal axis of a porous mass filter section.
  • the porous mass described hereinafter may be used with a smoking device, such as a tobacco smoking device.
  • the porous mass includes active particles and non-fibrous binder particles and may form a portion of a filter section of a smoking device.
  • the term "porous mass” as used herein refers to a mass comprising active particles and nonfibrous binder particles that form a structure bound by the binder particles and that includes void spaces therein, whereby smoke can travel through the porous mass and interact with the active particles.
  • the structure may be formed through the application of heat so that the binder particles soften to bind to the active particles at various contact points. While reference is made herein to "tobacco,” it should be understood that the porous mass described herein is also suitable for use with other substances that produce smoke when burned or heated ( i.e., smokeable substances).
  • smoking device there is shown several embodiments of a smoking device (these are representative, but not limiting on the smoking devices contemplated hereinafter).
  • smoking device most often refers to a cigarette, but it is not so limited and could be used with other smoking devices, such as cigarette holders, cigars, cigar holders, pipes, water pipes, hookahs, electronic smoking devices, roll-your-own cigarettes or cigars, etc.
  • smoking devices such as cigarette holders, cigars, cigar holders, pipes, water pipes, hookahs, electronic smoking devices, roll-your-own cigarettes or cigars, etc.
  • a smoking device may comprise a housing capable of maintaining a smokeable substance in fluid contact with the filter.
  • Suitable housings may include, but are not limited to, a cigarette, a cigarette holder, a cigar, a cigar holder, a pipe, a water pipe, a hookah, an electronic smoking device, a roll-your-own cigarette, a roll-your-own cigar, and a paper.
  • cigarette 10 includes a tobacco column 12 and a filter 14.
  • Filter 14 may comprise at least two sections, first section 16 and second section 18.
  • first section 16 may comprise conventional filter material (discussed in greater detail below) and the second section 18 comprises a porous mass (discussed in greater detail below).
  • the term "tobacco column” refers to the blend of tobacco, and optionally other ingredients and flavorants that may be combined to produce a tobacco-based smokeable article, such as a cigarette or cigar.
  • the tobacco column may comprise ingredients selected from the group consisting of: tobacco, sugar (such as sucrose, brown sugar, invert sugar, or high fructose corn syrup), propylene glycol, glycerol, cocoa, cocoa products, a carob bean gum, carob bean extracts, and any combination thereof.
  • the tobacco column may further comprise flavorants, menthol, licorice extract, diammonium phosphate, ammonium hydroxide, and any combination thereof.
  • suitable types of tobacco may include, but are not limited to, bright leaf tobacco, burley tobacco, Oriental tobacco (also known as Turkish tobacco), Cavendish tobacco, corojo tobacco, criollo tobacco, Perique tobacco, shade tobacco, white burley tobacco, and any combination thereof.
  • the tobacco may be grown in the United States, or may be grown in a jurisdiction outside the United States.
  • cigarette 20 has a tobacco column 12 and filter 22.
  • Filter 22 is multi-segmented with three sections.
  • conventional filter materials 24 may flank the porous mass 26.
  • cigarette 30 has a tobacco column 12 and a filter 32.
  • Filter 32 is multi-segmented with four sections.
  • end section 34 is a conventional material, but sections 36, 37, and 38 may be any combination of other filter materials and porous mass (so long as at least one of those sections is a porous mass of the present invention).
  • inventive filters may have any number of sections, for example, 2, 3, 4, 5, 6, or more sections, and the sections may be placed in any suitable configuration. It is preferred that at least one of the filter sections comprise a porous mass of the present invention. Moreover, the sections may be the same as one another or different from one another.
  • sections that may incorporated with the porous masses of the present invention to form filters may include, but are not limited to, sections that comprise at least one element selected from the following: cellulose acetate, polypropylene, polyethylene, polyolefin tow, polypropylene tow, polyethylene terephthalate, polybutylene terephthalate, random oriented acetate, papers, corrugated papers, concentric filters (e.g., a peripheral filter of fibrous tow and a core of a web material), carbon-on-tow (sometimes referred to as a "Dalmatian filter”), silica, magnesium silicate, zeolites, molecular sieves, metallocenes, salts, catalysts, sodium chloride, nylon, flavorants, tobacco, capsules, cellulose, cellulosic derivatives, catalytic converters, iodine pentoxide, coarse powders, carbon particles, carbon fibers, fibers, glass beads, nanoparticles, void chambers (e.g.,
  • zeolites include, but are not limited to, BETA, SBA-15, MCM-41, MCM-48 modified by 3-aminopropylsilyl groups, and any combination thereof.
  • the filter may be substantially degradable over time ( e.g ., over about 2 to about 5 years), either naturally or in the presence of a catalyst, that in some embodiments, may be present in a filter section itself. Also included are fibrous tows and papers with active materials (adhered thereto or impregnated therein or otherwise incorporated therewith).
  • Such active materials include activated carbon (or charcoal), ion exchange resins, zeolites, desiccants, catalysts, or other materials adapted to affect the tobacco smoke.
  • void chambers may be filled (or partially filled) with active ingredients or materials incorporating the active ingredients.
  • active ingredients include activated carbon (or charcoal), ion exchange resins, desiccants, or other materials adapted to affect the tobacco smoke.
  • the section may be a porous mass of binder particles (i.e ., binder particles alone without any active particles).
  • this porous mass without active particles may be made with thermoplastic particles (such as polyolefin powders, including the binder particles discussed below) that are bonded or molded together into a porous cylindrical shape.
  • a section may comprise a space that defines a cavity between two filter sections (one section including a porous mass of the present invention).
  • the cavity may be filled with granulated carbon, for example, or a flavorant, as another example.
  • the cavity may contain a capsule, e.g ., a polymeric capsule, that itself contains a flavorant or catalyst.
  • the cavity in some embodiments, may also contain a molecular sieve that reacts with selected components in the smoke to remove or reduce the concentration of the components without adversely affecting desirable flavor constituents of the smoke.
  • the cavity may include tobacco as an additional flavorant.
  • Flavorants that may be suitable for use in the present invention include any flavorant suitable for use in smoking devices including those that to impart a taste and/or a flavor to the smoke stream.
  • the flavorants may include, but not be limited to, organic material (or naturally flavored particles), carriers for natural flavors, carriers for artificial flavors, and any combination thereof.
  • Organic materials (or naturally flavored particles) include, but are not limited to, tobacco, cloves ( e.g ., ground cloves and clove flowers), cocoa, and the like.
  • Natural and artificial flavors may include, but are not limited to, menthol, cloves, cherry, chocolate, orange, mint, mango, vanilla, cinnamon, tobacco, and the like.
  • Such flavors may be provided by menthol, anethole (licorice), limonene (citrus), eugenol (clove), and the like.
  • more than one flavorant may be used including any combination of the flavorants provided herein. These flavorants may be placed in the tobacco column or in a section of a filter. Additionally, in some embodiments, the porous masses of the present invention may comprise a flavorant. The amount to include will depend on the desired level of flavor in the smoke taking into account all filter sections, the length of the smoking device, the type of smoking device, the diameter of the smoking device, as well as other factors known to those of skill in the art.
  • the sections that comprise a filter may be wrapped with paper to form filter rods.
  • the term "paper” as used herein refers collectively to any wrapping papers that are used in the production of smoking devices, including tipping paper, plug wrap paper, tipping base paper, and the like. Suitable papers for use in conjunction with present invention include wood-based papers, papers containing flax, flax papers, functionalized papers (e.g., those that are functionalized so as to reduce tar and/or carbon monoxide), special marking papers, colorized papers, and any combination thereof.
  • the papers may be high porosity, corrugated, and/or have a high surface strength.
  • the papers may comprise additives, sizing, and/or printability agents.
  • the filter rods that comprise a porous mass of the present invention may have lengths ranging from about 80 mm to about 150 mm.
  • the filter rods may be subsequently split into about 4 or about 6 individual segments of about 5 to about 35 mm in length during a smoking device tipping operation.
  • the filters may be first cut into segments and combined with paper and/or charcoal segments prior to tipping.
  • the filter rods may be attached to tobacco column with paper or other smoking apparatus to produce a finished smoking device.
  • at least three papers are used: plug wrap, cigarette paper, and tipping paper.
  • Plug wrap refers to the paper that is used to cover the filter section of the cigarette as that filter is produced and before it is joined to a tobacco column.
  • Cigarette paper refers to the paper that is used to cover the tobacco column section of the cigarette as that tobacco column is produced and before it is joined to a filter section.
  • tipping paper refers to the paper that is used to cover the filter section and a portion of the tobacco column as the two sections are joined to form a cigarette.
  • the seams of the various papers used to form a cigarette are joined using at least one adhesive, and more than one type of adhesive may be used in the formation of the cigarette.
  • a polyvinyl alcohol adhesive may be used to anchor the filter to the paper and a hot melt glue may be used at the edge of the paper to keep the filter wrapped.
  • cigarette paper may use a starch adhesive to join the edges of the paper.
  • tipping paper may be more fully coated, that is coated over most of the surface rather than only at the seam area, with a hot melt adhesive to ensure that the filter section and the tobacco section remain properly joined.
  • ventilation holes are made through the tipping paper, or through both the tipping paper and the plug wrap in order to allow air to be drawn into the smoke stream.
  • the filters may have a diameter in the range of about 5 mm to about 10 mm and a length of from about 5 mm to about 35 mm. In some embodiments, for example for ultra-slim or super-slim cigarettes, the filters may have a diameter in the range of less than 5 mm, for example, 3 mm or less, including, but not limited to, a lower diameter limit of 0.5 mm. For cigar embodiments, the filters may have a diameter larger than 20 mm, for example about 30 mm, as desired. Similarly, the size of the filter for other smoking devices may vary based on the intended use and consumer demand ( e.g ., in a pipe).
  • a pipe 40 has a burning bowl 42, a mouth piece 44, and a channel 46 interconnecting burning bowl 42 and mouth piece 44.
  • Channel 46 includes a cavity 47.
  • Cavity 47 is adapted for receipt of a filter 48.
  • Filter 48 may be a multi-segmented filter as discussed above or may consist solely of the porous mass. The size of the filter may vary based on the dimensions of cavity 47. In some embodiments, filter 48 may be removable, replaceable, disposable, recyclable, and/or degradable.
  • the conventional materials and porous mass are "joined.”
  • the term “joined,” as used herein, means that the porous mass is in-line (or in series) neighboring a tobacco column or another filter section, so that when the cigarette is smoked, smoke from the tobacco column must pass through ( e.g ., in series) the porous mass to arrive at its intended recipient ( e.g ., a smoker).
  • the porous mass may be joined to the tobacco column through paper wrapping techniques, e.g ., using paper and/or an adhesive. Additionally, in some embodiments, the porous mass may be joined to the tobacco column using an adhesive, which preferably is free from components that, upon burning, would interfere with the purposes of the invention.
  • a filter section comprising a porous mass and at least one other filter section may be co-axial, juxtaposed, abutting, and have equivalent cross-sectional areas (or substantially equivalent cross-sectional areas).
  • the porous mass and the conventional materials need not be joined in such a fashion, and that there may be other possible configurations.
  • porous mass will be, most often, used in a combined or multi-segmented cigarette filter configuration, as shown in Figures 1-3 ; the invention is not so limited and a smoking device may comprise only a porous mass of the present invention, as discussed above with regard to Figure 4 .
  • porous mass of the present invention may be separated from the tobacco by a hollow cavity (e.g ., a tube, or channel, such as in a pipe or hookah or a cigarette or cigar holder), for example, see Figure 4 .
  • a porous mass of the present invention may be separated from a tobacco column by a bendable element, allowing a consumer to shape the smoking device.
  • the porous masses of the present invention comprise active particles that are at least partially bonded together with binder particles.
  • active particles e.g ., activated carbon particles
  • binder particles 52 Shown at 54 is an example of a point of contact. Note: in this embodiment ( Figure 5 ), binder particles and active particles are joined at points of contact, the points of contact are randomly distributed throughout the porous mass, and the binder particles have retained their original physical shape (or substantially retained their original shape, e.g., no more that 10% variation ( e.g ., shrinkage) in shape from original).
  • the active particles and the binder particles are discussed in greater detail below.
  • the points of contact form when the binder particles are heated to their softening temperature, but not hot enough to reach a true melt.
  • the porous masses of the present invention are constructed so that they exhibit a minimal encapsulated pressure drop (defined below) while maximizing the active particles' surface area.
  • the ratio may be about 1 to about 99 weight % active particles and about 99 to about 1 weight % binder particles. In some embodiments, the ratio may be about 25 to about 99 weight % active particles and about 1 to about 75 weight % binder particles. In some embodiments, the ratio may be about 40 to about 99 weight % active particles and about 1 to about 60 weight % binder particles. In one embodiment of the porous mass, the active particles comprise about 50 to about 99 weight % of the mass while the binder particles comprise about 1 to about 50 weight % of the mass.
  • the active particles comprise about 60 to about 95 weight % of the mass while the binder particles comprise about 5 to about 40 weight % of the mass. Moreover, in yet another embodiment, the active particles comprise about 75 to about 90 weight % of the mass while the binder particles comprise about 10 to about 25 weight % of the mass.
  • the porous mass has a void volume in the range of about 40% to about 90%. In another embodiment, it has a void volume of about 60% to about 90%. In yet another embodiment, it has a void volume of about 60% to about 85%. Void volume is the free space left after accounting for the space taken by the active particles.
  • void volume is calculated based on the space remaining after accounting for the active particles. To determine void volume, first the upper and lower diameters based on the mesh size were averaged for the active particles, and then the volume was calculated (assuming a spherical shape based on that averaged diameter) and using the density of the active material.
  • Void Volume % 1 - porous mass volume cm 3 - Weight of active particles ⁇ gm / density of the active particles , gm / cm 3 * 100 porous mass volume , cm 3
  • the porous mass has an encapsulated pressure drop (EPD) in the range of about 0.10 to about 25 mm of water per mm length of porous mass.
  • EPD encapsulated pressure drop
  • the term "encapsulated pressure drop” refers to the static pressure difference between the two ends of a specimen when it is traversed by an air flow under steady conditions when the volume flow is 17.5 ml/sec at the output end when the specimen is completely encapsulated in a measuring device so that no air can pass through the wrapping.
  • EPD has been measured herein under the CORESTA ("Cooperation Centre for Scientific Research Relative to Tobacco") Recommended Method No. 41, dated June 2007.
  • a porous mass of the present invention may have an EPD in the range of about 0.10 to about 10 mm of water per mm length of porous mass. In other embodiments, a porous mass of the present invention may have an EPD of about 2 to about 7 mm of water per mm length of porous mass (or no greater than 7 mm of water per mm length of porous mass).
  • the active particles must have a greater particle size than the binder particles. In one embodiment, the ratio of binder particle size to active particle size is in the range of about 1:1.5 to about 1:4.
  • the porous mass of the present invention may have an active particle loading of at least about 1 mg/mm, 2 mg/mm, 3 mg/mm, 4 mg/mm, 5 mg/mm, 6 mg/mm, 7 mg/mm, 8 mg/mm, 9 mg/mm, 10 mg/mm, 11 mg/mm, 12 mg/mm, 13 mg/mm, 14 mg/mm, 15 mg/mm, 16 mg/mm, 17 mg/mm, 18 mg/mm, 19 mg/mm, 20 mg/mm, 21 mg/mm, 22 mg/mm, 23 mg/mm, 24 mg/mm, or 25 mg/mm in combination with an EPD of less than about 20 mm of water or less per mm of porous mass, 19 mm of water or less per mm of porous mass, 18 mm of water or less per mm of porous mass, 17 mm of water or less per mm of porous mass, 16 mm of water or less per mm of porous mass, 15 mm of water or less per mm of porous mass, 14 mm of water or less
  • the porous mass may have an active particle loading of at least about 1 mg/mm and an EPD of about 20 mm of water or less per mm of porous mass. In other embodiments, the porous mass may have an active particle loading of at least about 1 mg/mm and an EPD of about 20 mm of water or less per mm of porous mass, wherein the active particle is not carbon. In other embodiments, the porous mass may have an active particle comprising carbon with a loading of at least 6 mg/mm in combination with an EPD of 10 mm of water or less per mm of porous mass.
  • the porous mass may have any desired length. In a batch molding process, for example, the length would likely match the dimension of the mold(s) used. Additionally, in a continuous production process, the porous mass may be one long continuous cylinder of any desired length. In either event, the porous mass could subsequently be cut into desired smaller lengths or sections. The desired length may depend on the particular application in which the porous mass may be used. In one embodiment, the porous mass may have a length of about 1 mm to about 35 mm. In another embodiment, the porous mass may have a length of about 2 mm to about 30 mm. In another, the porous mass may have a length of about 7 mm to about 20 mm.
  • the porous mass may have any physical shape.
  • the porous mass may have a helical shape, a triangular shape, a disk shape, or a square shape, in some embodiments. In one embodiment, it is in the shape of a cylinder. A hybrid shape of these shapes may be suitable as well.
  • the porous mass may be machined to be lighter in weight, if desired, for example, by drilling out a portion of the porous mass.
  • the porous mass may have a specific shape for a cigarette holder or pipe that is adapted to fit within the cigarette holder or pipe to allow for smoke passage through the filter to the consumer.
  • the shape may be referred to in terms of diameter or circumference (wherein the circumference is the perimeter of a circle) of the cross section of the cylinder.
  • circumference is used to mean the perimeter of any shaped cross-section, including a circular cross-section.
  • the active particles may be any material adapted to enhance smoke flowing thereover. Adapted to enhance smoke flowing thereover refers to any material that can remove, reduce, or add components to a smoke stream.
  • the removal or reduction (or addition) may be selective.
  • compounds such as those shown below in the following listing may be selectively removed or reduced. This table is available from the U.S. FDA as a Draft Proposed Initial List of Harmful/Potentially Harmful Constituents in Tobacco Products, including Tobacco Smoke; any abbreviations in the below listing are well-known chemicals in the art.
  • the active particle may reduce or remove at least one component selected from the listing of components in smoke below, including any combination thereof.
  • an active material is activated carbon (or activated charcoal or active coal).
  • the activated carbon may be low activity (about 50% to about 75% CCl 4 adsorption) or high activity (about 75% to about 95% CCl 4 adsorption) or a combination of both.
  • the active carbon may be nano-scaled carbon particle, such as carbon nanotubes of any number of walls, carbon nanohorns, bamboo-like carbon nanostructures, fullerenes and fullerene aggregates, and graphene including few layer graphene and oxidized graphene.
  • Such materials include ion exchange resins, desiccants, silicates, molecular sieves, metallocenes, silica gels, metallocene, activated alumina, zeolites, perlite, sepiolite, Fuller's Earth, magnesium silicate, metal oxides (e.g., iron oxide and iron oxide nanoparticles like about 12 nm Fe 3 O 4 ), nanoparticles (e.g., metal nanoparticles like gold and silver; metal oxide nanoparticles like alumina; magnetic, paramagnetic, and superparamagentic nanoparticles like gadolinium oxide, various crystal structures of iron oxide like hematite and magnetite, gado-nanotubes, and endofullerenes like Gd@C 60 ; and core-shell and onionated nanoparticles like gold and silver nanoshells, onionated iron oxide, and others nanoparticles or microparticles with an outer shell of any of said materials) and any combination of the fore
  • nanoparticles include nanorods, nanospheres, nanorices, nanowires, nanostars (like nanotripods and nanotetrapods), hollow nanostructures, hybrid nanostructures that are two or more nanoparticles connected as one, and non-nano particles with nano-coatings or nano-thick walls.
  • nanoparticles include the functionalized derivatives of nanoparticles including, but not limited to, nanoparticles that have been functionalized covalently and/or non-covalently, e.g., pi-stacking, physisorption, ionic association, van der Waals association, and the like.
  • Suitable functional groups may include, but not be limited to, moieties comprising amines (1°, 2°, or 3°), amides, carboxylic acids, aldehydes, ketones, ethers, esters, peroxides, silyls, organosilanes, hydrocarbons, aromatic hydrocarbons, and any combination thereof; polymers; chelating agents like ethylenediamine tetraacetate, diethylenetriaminepentaacetic acid, triglycollamic acid, and a structure comprising a pyrrole ring; and any combination thereof.
  • Functional groups may enhance removal of smoke components and/or enhance incorporation of nanoparticles into a porous mass.
  • Ion exchange resins include, for example, a polymer with a backbone, such as styrene-divinyl benzene (DVB) copolymer, acrylates, methacrylates, phenol formaldehyde condensates, and epichlorohydrin amine condensates; and a plurality of electrically charged functional groups attached to the polymer backbone.
  • the active particles are a combination of various active particles.
  • the porous mass may comprise multiple active particles.
  • an active particle may comprise at least one element selected from the group of active particles disclosed herein. It should be noted that "element" is being used as a general term to describe items in a list.
  • the active particles are combined with at least one flavorant.
  • a mixture of active particles may be used to remove multiple harmful substances from a smoke stream.
  • activated charcoal has been shown to be successful in removing substances such as formaldehyde and acetone from cigarette smoke, it is ineffective in removing carbon monoxide.
  • carbon monoxide may be removed from a gaseous stream by exposure to iodine pentoxide, a molecular sieve (such as a metallocene), a molecular oxide, a metal catalyst (such as palladium), and the like.
  • the active particles have a particle sizes ranging from particles having at least one dimension of about less than one nanometer, such as graphene, to as large as a particle having a diameter of about 5000 microns.
  • the active particles may range from a lower size limit in at least one dimension of about: 0.1 nanometers, 0.5 nanometers, 1 nanometer, 10 nanometers, 100 nanometers, 500 nanometers, 1 micron, 5 microns, 10 microns, 50 microns, 100 microns, 150 microns, 200 microns, and 250 microns.
  • the active particles may range from an upper size limit in at least one dimension of about: 5000 microns, 2000 microns, 1000 microns, 900 microns, 700 microns, 500 microns, 400 microns, 300 microns, 250 microns, 200 microns, 150 microns, 100 microns, 50 microns, 10 microns, and 500 nanometers. Any combination of lower limits and upper limits above may be suitable for use in the present invention, wherein the selected maximum size is greater than the selected minimum size. In some embodiments, the active particles may be a mixture of particle sizes ranging from the above lower and upper limits.
  • the binder particles may be any suitable thermoplastic binder particles.
  • the binder particles exhibit virtually no flow at its melting temperature. This means a material that when heated to its melting temperature exhibits little to no polymer flow. Materials meeting these criteria include, but are not limited to, ultrahigh molecular weight polyethylene, very high molecular weight polyethylene, high molecular weight polyethylene, and combinations thereof.
  • the binder particles have a melt flow index (MFI, ASTM D1238) of less than or equal to about 3.5 g/10min at 190°C and 15 Kg (or about 0-3.5 g/10min at 190°C and 15 Kg).
  • the binder particles have a melt flow index (MFI) of less than or equal to about 2.0 g/10min at 190°C and 15 Kg (or about 0-2.0 g/10min at 190°C and 15 Kg).
  • MFI melt flow index
  • UHMWPE ultra high molecular weight polyethylene
  • VHMWPE very high molecular weight polyethylene
  • HMWPE high molecular weight polyethylene
  • ultra-high molecular weight polyethylene refers to polyethylene compositions with weight-average molecular weight of at least about 3 x 10 6 g/mol.
  • the molecular weight of the ultra-high molecular weight polyethylene composition is between about 3 x 10 6 g/mol and about 30 x 10 6 g/mol, or between about 3 x 10 6 g/mol and about 20 x 10 6 g/mol, or between about 3 x 10 6 g/mol and about 10 x 10 6 g/mol, or between about 3 x 10 6 g/mol and about 6 x 10 6 g/mol.
  • “Very-high molecular weight polyethylene” refers to polyethylene compositions with a weight average molecular weight of less than about 3 x 10 6 g/mol and more than about 1 x 10 6 g/mol. In some embodiments, the molecular weight of the very-high molecular weight polyethylene composition is between about 2 x 10 6 g/mol and less than about 3 x 10 6 g/mol. "High molecular weight polyethylene” refers to polyethylene compositions with weight-average molecular weight of at least about 3 x 10 5 g/mol to 1 x 10 6 g/mol. For purposes of the present specification, the molecular weights referenced herein are determined in accordance with the Margolies equation ("Margolies molecular weight").
  • Suitable polyethylene materials are commercially available from several sources including GUR® UHMWPE from Ticona Polymers LLC, a division of Celanese Corporation of Dallas, TX, and DSM (Netherland), Braskem (Brazil), Beijing Factory No. 2 (BAAF), Shanghai Chemical, and Qilu (People's Republic of China), Mitsui and Asahi (Japan).
  • GUR® polymers may include: GUR® 2000 series (2105, 2122, 2122-5, 2126), GUR® 4000 series (4120, 4130, 4150, 4170, 4012, 4122-5, 4022-6, 4050-3/4150-3), GUR® 8000 series (8110, 8020), GUR® X series (X143, X184, X168, X172, X192).
  • a suitable polyethylene material is that having an intrinsic viscosity in the range of about 5 dl/g to about 30 dl/g and a degree of crystallinity of about 80% or more as described in U.S. Patent Application Publication No. 2008/0090081 .
  • Another example of a suitable polyethylene material is that having a molecular weight in the range of about 300,000 g/mol to about 2,000,000 g/mol as determined by ASTM-D 4020, an average particle size, D 50 , between about 300 ⁇ m and about 1500 ⁇ m, and a bulk density between about 0.25 g/ml and about 0.5 g/ml as described in U.S. Provisional Application No. 61/330,535 filed May 3, 2010 .
  • the binder particles may assume any shape. Such shapes include spherical, hyperion, asteroidal, chrondular, or interplanetary dust-like, granulated, potato, irregular, or combinations thereof.
  • the binder particles suitable for use in the present invention are non-fibrous.
  • the binder particles are in the form of a powder, pellet, or particulate.
  • the binder particles are a combination of various binder particles.
  • the binder particles may range from a lower size limit in at least one dimension of about: 0.1 nanometers, 0.5 nanometers, 1 nanometer, 10 nanometers, 100 nanometers, 500 nanometers, 1 micron, 5 microns, 10 microns, 50 microns, 100 microns, 150 microns, 200 microns, and 250 microns.
  • the binder particles may range from an upper size limit in at least one dimension of about: 5000 microns, 2000 microns, 1000 microns, 900 microns, 700 microns, 500 microns, 400 microns, 300 microns, 250 microns, 200 microns, 150 microns, 100 microns, 50 microns, 10 microns, and 500 nanometers. Any combination of lower limits and upper limits above may be suitable for use in the present invention, wherein the selected maximum size is greater than the selected minimum size. In some embodiments, the binder particles may be a mixture of particle sizes ranging from the above lower and upper limits.
  • the binder particles may have a bulk density in the range of about 0.10 g/cm 3 to about 0.55 g/cm 3 .
  • the bulk density may be in the range of about 0.17 g/cm 3 to about 0.50 g/cm 3 .
  • the bulk density may be in the range of about 0.20 g/cm 3 to about 0.47 g/cm 3 .
  • thermoplastics include, but are not limited to, polyolefins, polyesters, polyamides (or nylons), polyacrylics, polystyrenes, polyvinyls, polytetrafluoroethylene (PTFE), polyether ether ketone (PEEK), any copolymer thereof, any derivative thereof, and any combination thereof.
  • suitable polyolefins include, but are not limited to, polyethylene, polypropylene, polybutylene, polymethylpentene, any copolymer thereof, any derivative thereof, any combination thereof and the like.
  • suitable polyethylenes further include low-density polyethylene, linear low-density polyethylene, high-density polyethylene, any copolymer thereof, any derivative thereof, any combination thereof and the like.
  • suitable polyesters include polyethylene terephthalate, polybutylene terephthalate, polycyclohexylene dimethylene terephthalate, polytrimethylene terephthalate, any copolymer thereof, any derivative thereof, any combination thereof and the like.
  • suitable polyacrylics include, but are not limited to, polymethyl methacrylate, any copolymer thereof, any derivative thereof, any combination thereof and the like.
  • suitable polystyrenes include, but are not limited to, polystyrene, acrylonitrile-butadiene-styrene, styrene-acrylonitrile, styrene-butadiene, styrene-maleic anhydride, any copolymer thereof, any derivative thereof, any combination thereof and the like.
  • suitable polyvinyls include, but are not limited to, ethylene vinyl acetate, ethylene vinyl alcohol, polyvinyl chloride, any copolymer thereof, any derivative thereof, any combination thereof and the like.
  • Suitable cellulosics include, but are not limited to, cellulose acetate, cellulose acetate butyrate, plasticized cellulosics, cellulose propionate, ethyl cellulose, any copolymer thereof, any derivative thereof, any combination thereof and the like.
  • a binder particle may be any copolymer, any derivative, and any combination of the above listed binders.
  • the porous mass is effective at the removal of components from smoke, for example, those in the listing above.
  • a porous mass can be used to reduce the delivery of certain tobacco smoke components targeted by the WHO.
  • a porous mass where activated carbon is used as the active particles can be used to reduce the delivery of certain tobacco smoke components to levels below the WHO recommendations. (See Table 13, below.)
  • the porous mass, where activated carbon is used has a length in the range of about 4 mm to about 11 mm.
  • the components include: acetaldehyde, acrolein, benzene, benzo[a]pyrene, 1,3-butadiene, and formaldehyde.
  • the porous mass with activated carbon may reduce acetaldehydes in a smoke stream by about 3.0% to about 6.5%/mm length of porous mass; acrolein in a smoke stream by about 7.5% to about 12%/mm length of porous mass; benzene in a smoke stream by about 5.5% to about 8.0%/mm length of porous mass; benzo[a]pyrene in a smoke stream by about 9.0% to about 21.0%/mm length of porous mass; 1,3-butadiene in a smoke stream by about 1.5% to about 3.5%/mm length of porous mass; and formaldehyde in a smoke stream by about 9.0% to about 11.0%/mm length of porous mass.
  • a porous mass where an ion exchange resin is used as the active particles can be used to reduce the delivery of certain tobacco smoke components to below the WHO recommendations. See Table 14, below.
  • the porous mass, where ion exchange resins are used has a length in the range of about 7 mm to about 1 mm.
  • the components include: acetaldehyde, acrolein, and formaldehyde.
  • a porous mass of the present invention having an ion exchange resin may reduce: acetaldehydes in a smoke stream by about 5.0% to about 7.0%/mm length of porous mass; acrolein in a smoke stream by about 4.0% to about 6.5%/mm length of porous mass; and formaldehyde in a smoke stream by about 9.0% to about 11.0%/mm length of porous mass.
  • the porous mass may be made by any suitable means. In some embodiments, this may be a batch process. In others, this may be a continuous process.
  • the active particles and binder particles are blended together and introduced into a mold.
  • the mold is heated to a temperature at or above the melting point of the binder particles, e.g., in one embodiment about 150°C to 300°C and held at the temperature for a period of time sufficient to heat the mold and its contents to the desired temperature. Thereafter, the mass is removed from the mold and cooled to room temperature.
  • a suitable process may be a free sintering process, because the binder particles do not flow (or flow very little) at the sintering temperature and no pressure is applied to the blended materials in the mold.
  • point bonds are formed between the active particles and the binder particles. This is believed to enable the formation of superior bonding and maximizing the interstitial space, while minimizing the blinding of the surface of the active particles by free flowing molten binder. Also see, U.S. Patents 6,770,736 , 7,049,382 , and 7,160,453 , incorporated herein by reference.
  • a porous mass of the present invention may be made by a process involving sintering under pressure. As the mixture of the active particles and the binder particles are heated (or at a temperature which may be below, at, or above the melting temperature of the binder particles) a pressure is exerted on the mixture to facilitate coalescence of the porous mass.
  • the porous mass may be made by an extrusion sintering process where the mixture is heated in an extruder barrel and extruded into the porous mass.
  • any suitable method for forming a smoking device filter comprising a porous mass of the present invention may be used in conjunction with the porous masses.
  • an apparatus for producing a smoking device filter may be used that has at least a plurality of areas comprising: a container area comprising at least a plurality of first filter section pieces; a second container area comprising at least a plurality of second filter section pieces, the second filter section pieces comprising a porous mass having an active particle and a binder particle, the porous mass having: an active particle loading of at least about 1 mg/mm, an EPD of about 20 mm of water or less per mm of porous mass; a joiner area wherein a first filter section piece and a second filter section piece are joined; a wrapping area wherein the first filter section piece and the second filter section piece are wrapped with a paper to form a smoking device filter; and a conveyor to transport the smoking device filter to a subsequent area for storage or use.
  • a filter rod may be formed in this process that comprises
  • the smoking device filters may be directly transported to a manufacturing line whereby they will be combined with tobacco columns to form smoking devices.
  • An example of such a method includes a process for producing a smoking device comprising: providing a filter rod comprising at least one filter section comprising a porous mass that comprises an active particle and a binder particle; providing a tobacco column; cutting the filter rod transverse to its longitudinal axis through the center of the rod to form at least two filters having at least one filter section, each filter section comprising a porous mass that comprises an active particle and a binder particle; and joining at least one of the filters to the tobacco column along the longitudinal axis of the filter and the longitudinal axis of the tobacco column to form at least one smoking device.
  • the porous mass of the present invention may be non-compressible or less compressible than a traditional cellulose acetate filter section, which may lead to difficulty in some manufacturing processes.
  • ultra high molecular weight polymers such as ultra high molecular weight polyethylene
  • the porous mass of the present invention tends to be incompressible. In such cases, it may be desirable to wrap or encase the porous mass section with a material that is compressible.
  • the wrapping or encasing material is placed along the longitudinal axis of the porous mass filter section such that the wrapping or encasing material is between the porous mass and the plug wrap paper.
  • the wrapping or encasing material should be selected such that it provides the desired compressibility while also exhibiting a relatively high pressure drop such that smoke drawn through the section preferentially travels through the porous mass rather than the wrapping or encasing material or encasing material is greater than the encapsulated pressure drop of the porous mass.
  • the wrapping material may have an encapsulated pressure drop that is 1% higher than the encapsulated pressure drop of the porous mass, in other embodiments the difference may be 5% higher, 10% higher, 25% higher, 50% higher, 75% higher, 100% higher, 125% higher, 150% higher, 175% higher, 200% higher, 225% higher, 250% higher, 275% higher, or 300% higher.
  • the difference in the encapsulated pressure drop between the wrapping or encasing material and the porous mass may go even higher so long as the user is not negatively effected and so long as the wrapping or encasing material continues to provide the desired compressibility.
  • the wrapping or encasing material may comprise cellulose acetate, polypropylene, polyethylene, polyolefin tow, polypropylene tow, polyethylene terephthalate, polybutylene terephthalate, random oriented acetate, paper, corrugated paper, carbon-on-tow, silica, magnesium silicate, nylon, cellulose, and any combination thereof.
  • the wrapping or encasing material is placed along the longitudinal axis of the porous mass filter section such that the wrapping or encasing material is on the outside of the plug wrap paper.
  • the porous mass diameter must be selected to compensate for the diameter increase as layer of papers or wrappings or encasing materials are added.
  • the final filter diameter must match the tobacco column diameter for the filter/tobacco column combine step.
  • the wrapping or encasing material is placed along the longitudinal axis of the porous mass filter section such that the wrapping or encasing material is in direct contact with the porous mass. This configuration can eliminate paper use in the sintering process.
  • the smoking device filters may be placed in a suitable container for storage until further use. Suitable storage containers include those commonly used in the smoking device filter art including, but not limited to crates boxes, drums, bags, cartons, and the like. Storage and transportation containers used with the porous mass filter sections of the present invention may need to be altered to account for presence of the porous mass.
  • cylindrical and other shaped rods or cigarettes incorporating porous mass filter sections of the present invention may be heavier in weight, or more brittle than a cellulose acetate filter section.
  • it may be desirable to ship porous mass sections or cigarettes incorporating porous mass sections such that the porous mass is not exposed to environmental contamination.
  • a method of making a filter may comprise: providing a blend comprising active particles and binder particles; placing the blend in a mold; heating the blend in the mold to a temperature at or above the melting point of the binder particles so as to form a porous mass selected from at least one porous mass of the present invention; removing the porous mass from the mold; and forming a filter comprising the porous mass.
  • a method of making a smoking device filter may comprise: providing a blend comprising an active particle and a binder particle; heating the blend; extruding the blend while at an elevated temperature so as to form a porous mass selected from at least one porous mass of the present invention; and forming a filter comprising the porous mass.
  • a method for producing a smoking device may comprise: providing a first filter section; providing at least one second filter section, wherein the second filter section comprises a porous mass selected from at least one porous mass of the present invention; joining the first filter section and at least one second filter section so as to form a filter rod; and joining at least a portion of the filter rod with a tobacco column to form a smoking device.
  • a method of making a filter rod may comprise: providing a container that comprises at least a plurality of first filter section pieces; providing a second container comprising at least a plurality of second filter section pieces, wherein the second filter section pieces comprise a porous mass selected from at least one porous mass of the present invention; joining a first filter section piece and a second filter section piece end-to-end along the longitudinal axis of the first filter section piece and the second filter section piece to form an unwrapped filter rod; wrapping the first filter section piece and the second filter section piece with a paper to form a filter rod; and transporting the filter rod to a subsequent area for storage or use.
  • a method of making a smoking device may comprise: providing a filter rod comprising at least one filter section that comprises a porous mass selected from at least one porous mass of the present invention; providing a tobacco column; cutting the filter rod transverse to its longitudinal axis through the center of the rod to form at least two smoking device filters having at least one filter section that comprises a porous mass that comprises an active particle and a binder particle; and joining at least one of the smoking device filters to the tobacco column along the longitudinal axis of the filter and the longitudinal axis of the tobacco column to form at least one smoking device.
  • a method of making a smoking device may comprise: providing a tobacco column; joining a filter to the tobacco column, wherein the filter comprises a porous mass selected from at least one porous mass of the present invention.
  • An apparatus comprising: a container area comprising at least a plurality of first filter section pieces; a second container area comprising at least a plurality of second filter section pieces, wherein the second filter section pieces comprises a porous mass selected from at least one porous mass of the present invention; a joiner area wherein a first filter section piece and a second filter section piece are joined; a wrapping area wherein the first filter section piece and the second filter section piece are wrapped with a paper to form a smoking device filter; and a conveyor to transport the smoking device filter to a subsequent area for storage or use.
  • the present invention provides a pack of filters that comprises a porous mass of the present invention.
  • the pack may be a hinge-lid pack, a slide-and-shell pack, a hard cup pack, a soft cup pack, or any other suitable pack container.
  • the present invention provides a pack comprising a pack and at least one filter that comprises at least one filter section having a porous mass that comprises an active particle and a binder particle, the porous mass having: an active particle loading of at least about 1 mg/mm, an EPD of about 20 mm of water or less per mm of porous mass.
  • the present invention provides a pack comprising a pack and at least one filter that comprises at least one filter section having a porous mass that comprises an active particle and a binder particle, the porous mass having: an active particle loading of at least about 1 mg/mm, an EPD of about 20 mm of water or less per mm of porous mass.
  • the packs may have an outer wrapping, such as a polypropylene wrapper, and optionally a tear tab.
  • the filters may be sealed as a bundle inside a pack.
  • a bundle may contain a number of filters, for example, 20 or more. However, a bundle may include a single filter, in some embodiments, such as exclusive filter embodiments like those for individual sale, or a filter comprising a specific spice, like vanilla, clove, or cinnamon.
  • the present invention provides a pack of smoking devices that includes at least one smoking device having a filter that comprises a porous mass of the present invention.
  • the pack may be a hinge-lid pack, a slide-and-shell pack, a hard cup pack, a soft cup pack, or any other suitable pack container.
  • the present invention provides a cigarette pack comprising a pack and at least one cigarette comprising a filter that comprises at least one filter section having a porous mass that comprises an active particle and a binder particle, the porous mass having: an active particle loading of at least about 1 mg/mm, and an EPD of about 20 mm of water or less per mm of porous mass.
  • the present invention provides a cigar pack comprising a pack and at least one cigar comprising a filter that comprises at least one filter section having a porous mass that comprises an active particle and a binder particle, the porous mass having: an active particle loading of at least about 1 mg/mm, and an EPD of about 20 mm of water or less per mm of porous mass.
  • the packs may have an outer wrapping, such as a polypropylene wrapper, and optionally a tear tab.
  • the smoking devices may be sealed as a bundle inside a pack.
  • a bundle may contain a number of smoking devices, for example, 20 or more. However, a bundle may include a single smoking device, in some embodiments, such as exclusive smoking embodiments like a cigar, or a smoking device comprising a specific spice, like vanilla, clove, or cinnamon.
  • the present invention provides a carton of smoking device packs that includes at least one pack of smoking devices that includes at least one smoking device having a porous mass of the present invention.
  • the present invention provides a cigarette carton, the cigarette carton comprising at least one cigarette pack, the cigarette pack comprising a pack and at least one cigarette comprising a filter that comprises at least one filter section having a porous mass that comprises an active particle and a binder particle, the porous mass having: an active particle loading of at least about 1 mg/mm, and an EPD of about 20 mm of water or less per mm of porous mass.
  • the carton e.g ., a container
  • the present invention also provides methods of smoking such a smoking device.
  • the present invention provides a method of smoking a smoking device comprising: heating or lighting a smoking device to form smoke, the smoking device comprising at least one filter section having a porous mass having an active particle and a binder particle, the porous mass having: an active particle loading of at least about 1 mg/mm, an EPD of about 20 mm of water or less per mm of porous mass; and drawing the smoke through the smoking device, wherein the filter section reduces the presence of at least one component in the smoke as compared to a filter without the porous mass.
  • the smoking device is a cigarette. In other embodiments, the smoking device is a cigar, a cigar holder, a pipe, a water pipe, a hookah, an electronic smoking device, a smokeless smoking device, a roll-your-own cigarette, a roll-your-own cigar, or another smoking device.
  • a smoking device comprising a porous mass of active particles adapted to enhance a tobacco smoke flowing over said active particles and binder particles.
  • the active particles comprise about 1% to about 99% weight of the porous mass, and the binder particles comprise about 1% to about 99% weight of said porous mass.
  • the active particles and said binder particles are bound together at randomly distributed points throughout the porous mass.
  • the active particles have a greater particle size than the binder particles.
  • the present invention provides a filter comprising a porous mass that comprises an active particle and a binder particle, the active particle comprising an element selected from the group consisting of: a nano-scaled carbon particle, a carbon nanotube having at least one wall, a carbon nanohorn, a bamboo-like carbon nanostructure, a fullerene, a fullerene aggregate, graphene, a few layer graphene, oxidized graphene, a iron oxide nanoparticle, a nanoparticle, a metal nanoparticle, a gold nanoparticle, a silver nanoparticle, a metal oxide nanoparticle, an alumina nanoparticle, a magnetic nanoparticle, a paramagnetic nanoparticle, a superparamagnetic nanoparticle, a gadolinium oxide nanoparticle, a hematite nanoparticle, a magnetite nanoparticle, a gado-nanotube, an endofullerene, Gd@C60, a core-shell nano
  • the present invention provides a filter comprising a porous mass that comprises an active particle and a binder particle, the porous mass having a carbon loading of at least about 6 mg/mm, and an encapsulated pressure drop ("EPD") of about 20 mm of water or less per mm of porous mass.
  • EPD encapsulated pressure drop
  • the present invention provides a filter comprising a porous mass that comprises an active particle and a binder particle, the porous mass having: an active particle loading of at least about 1 mg/mm and an EPD of about 20 mm of water or less per mm of porous mass, and wherein the active particle is not carbon.
  • the present invention provides a method of making a tobacco smoke filter for a smoking device comprising mixing binder particles and active particles so as to produce a porous mass having an active particle loading of at least about 1 mg/mm and an EPD of about 20 mm of water or less per mm of porous mass, and wherein the active particle is not carbon.
  • the present invention provides a method of making a tobacco smoke filter for a smoking device comprising the steps of: mixing binder particles and active particles, the active particle comprising an element selected from the group consisting of: a nano-scaled carbon particle, a carbon nanotube having at least one wall, a carbon nanohorn, a bamboo-like carbon nanostructure, a fullerene, a fullerene aggregate, graphene, a few layer graphene, oxidized graphene, an iron oxide nanoparticle, a nanoparticle, a metal nanoparticle, a gold nanoparticle, a silver nanoparticle, a metal oxide nanoparticle, an alumina nanoparticle, a magnetic nanoparticle, a paramagnetic nanoparticle, a superparamagentic nanoparticle, a gadolinium oxide nanoparticle, a hematite nanoparticle, a magnetite nanoparticle, a gado-nanotube, an endofullerene, Gd@C60,
  • the present invention provides a method of making a tobacco smoke filter for a smoking device comprising mixing binder particles and active particles so as to produce a porous mass having a carbon loading of at least about 6 mg/mm, an EPD of about 20 mm of water or less per mm of porous mass.
  • the present invention provides a smoking device filter having at least one filter section having a porous mass that comprises an active particle and a binder particle, the porous mass having: an active particle loading of at least about 1 mg/mm, and an EPD of about 20 mm of water or less per mm of porous mass.
  • the present invention provides a smoking device filter having at least one filter section having a porous mass that comprises an active particle and a binder particle, the active particle comprising an element selected from the group consisting of: a nano-scaled carbon particle, a carbon nanotube having at least one wall, a carbon nanohorn, a bamboo-like carbon nanostructure, a fullerene, a fullerene aggregate, graphene, a few layer graphene, oxidized graphene, an iron oxide nanoparticle, a nanoparticle, a metal nanoparticle, a gold nanoparticle, a silver nanoparticle, a metal oxide nanoparticle, an alumina nanoparticle, a magnetic nanoparticle, a paramagnetic nanoparticle, a superparamagentic nanoparticle, a gadolinium oxide nanoparticle, a hematite nanoparticle, a magnetite nanoparticle, a gado-nanotube, an endofullerene, Gd@C60,
  • the present invention provides a smoking device filter having at least one filter section having a porous mass that comprises carbon and a binder particle, the porous mass having a carbon loading of at least about 6 mg/mm, an EPD of about 20 mm of water or less per mm of porous mass.
  • the present invention provides a smoking device comprising a filter that comprises at least one filter section having a porous mass, the porous mass having an active particle and a binder particle, the porous mass having: and an active particle loading of at least about 1 mg/mm, an EPD of about 20 mm of water or less per mm of porous mass.
  • the present invention provides a smoking device comprising a filter that comprises at least one filter section having a porous mass, the porous mass having an active particle and a binder particle, the active particle comprising an element selected from the group consisting of: a nano-scaled carbon particle, a carbon nanotube having at least one wall, a carbon nanohorn, a bamboo-like carbon nanostructure, a fullerene, a fullerene aggregate, graphene, a few layer graphene, oxidized graphene, an iron oxide nanoparticle, a nanoparticle, a metal nanoparticle, a gold nanoparticle, a silver nanoparticle, a metal oxide nanoparticle, an alumina nanoparticle, a magnetic nanoparticle, a paramagnetic nanoparticle, a superparamagentic nanoparticle, a gadolinium oxide nanoparticle, a hematite nanoparticle, a magnetite nanoparticle, a gado-nanotube, an endofuller
  • the present invention provides a smoking device comprising a filter that comprises at least one filter section having a porous mass, the porous mass having a carbon loading of at least about 6 mg/mm, and an EPD of about 20 mm of water or less per mm of porous mass.
  • the present invention provides a method of making a cigarette, comprising: providing a tobacco column; attaching a filter to the tobacco column, the filter comprising a section that comprises a porous mass having an active particle and a binder particle, the porous mass having: active particle loading of at least about 1 mg/mm, an EPD of about 20 mm of water or less per mm of porous mass, and wherein the active particle is not carbon; and forming a cigarette.
  • the present invention provides a smoking device that comprises a filter that comprises an active particle, the active particle comprising an element selected from the group consisting of: a nano-scaled carbon particle, a carbon nanotube having at least one wall, a carbon nanohorn, a bamboo-like carbon nanostructure, a fullerene, a fullerene aggregate, graphene, a few layer graphene, oxidized graphene, an iron oxide nanoparticle, a nanoparticle, a metal nanoparticle, a gold nanoparticle, a silver nanoparticle, a metal oxide nanoparticle, an alumina nanoparticle, a magnetic nanoparticle, a paramagnetic nanoparticle, a superparamagentic nanoparticle, a gadolinium oxide nanoparticle, a hematite nanoparticle, a magnetite nanoparticle, a gado-nanotube, an endofullerene, Gd@C60, a core-shell nanoparticle, an onionated nanop
  • the present invention provides a smoking device that comprises a tobacco column that comprises tobacco and optionally an element selected from the group consisting of: sugar, sucrose, brown sugar, invert sugar, high fructose corn syrup, propylene glycol, glycerol, cocoa, a cocoa product, a carob bean gum, a carob bean extract, and any combination thereof, and a filter that comprises an active particle, the active particle comprising an element selected from the group consisting of: a nano-scaled carbon particle, a carbon nanotube having at least one wall, a carbon nanohorn, a bamboo-like carbon nanostructure, a fullerene, a fullerene aggregate, graphene, a few layer graphene, oxidized graphene, an iron oxide nanoparticle, a nanoparticle, a metal nanoparticle, a gold nanoparticle, a silver nanoparticle, a metal oxide nanoparticle, an alumina nanoparticle, a magnetic nanoparticle, a paramagnetic nanoparticle,
  • the present invention provides a smoking device that comprises a tobacco column that comprises tobacco and optionally an element selected from the group consisting of: sugar, sucrose, brown sugar, invert sugar, high fructose corn syrup, propylene glycol, glycerol, cocoa, a cocoa product, a carob bean gum, a carob bean extract, a flavorant, menthol, licorice extract, diammonium phosphate, ammonium hydroxide, and any combination thereof, and a filter that comprises an active particle, the active particle comprising a element selected from the group consisting of: a nano-scaled carbon particle, a carbon nanotube having at least one wall, a carbon nanohorn, a bamboo-like carbon nanostructure, a fullerene, a fullerene aggregate, graphene, a few layer graphene, oxidized graphene, an iron oxide nanoparticle, a nanoparticle, a metal nanoparticle, a gold nanoparticle, a silver nanoparticle, a
  • the present invention provides a smoking device that comprises a tobacco column that comprises a tobacco source selected from the group consisting of bright leaf tobacco, burley tobacco, Oriental tobacco, Cavendish tobacco, corojo tobacco, criollo tobacco, Perique tobacco, shade tobacco, white burley tobacco, and any combination thereof, and optionally an element selected from the group consisting of: sugar, sucrose, brown sugar, invert sugar, high fructose corn syrup, propylene glycol, glycerol, cocoa, a cocoa product, a carob bean gum, a carob bean extract, a flavorant, menthol, licorice extract, diammonium phosphate, ammonium hydroxide, and any combination thereof, and a filter that comprises an active particle, the active particle comprising an element selected from the group consisting of: a nano-scaled carbon particle, a carbon nanotube having at least one wall, a carbon nanohorn, a bamboo-like carbon nanostructure, a fullerene, a fullerene aggregate, graph
  • the present invention provides a method of making a cigarette comprising: providing a tobacco column; attaching a filter to the tobacco column, the filter comprising a section that comprises a porous mass, the porous mass having an active particle and a binder particle, the active particle comprising an element selected from the group consisting of: a nano-scaled carbon particle, a carbon nanotube having at least one wall, a carbon nanohorn, a bamboo-like carbon nanostructure, a fullerene, a fullerene aggregate, graphene, a few layer graphene, oxidized graphene, an iron oxide nanoparticle, a nanoparticle, a metal nanoparticle, a gold nanoparticle, a silver nanoparticle, a metal oxide nanoparticle, an alumina nanoparticle, a magnetic nanoparticle, a paramagnetic nanoparticle, a superparamagentic nanoparticle, a gadolinium oxide nanoparticle, a hematite nanoparticle, a magnetite
  • the present invention provides a method of making a cigarette, comprising: providing a tobacco column; attaching a filter to the tobacco column, the filter comprising a section that comprises a porous mass, the porous mass having a carbon loading of at least about 6 mg/mm, and an EPD of about 20 mm of water or less per mm of porous mass.
  • the present invention provides a method of making a cigar, comprising: providing a tobacco column, attaching a filter to the tobacco column, the filter comprising a section that comprises a porous mass having an active particle and a binder particle, the porous mass having: active particle loading of at least about 1 mg/mm, and an EPD of about 20 mm of water or less per mm of porous mass.
  • the present invention provides a method of making a cigar comprising: providing a tobacco column; attaching a filter to the tobacco column, the filter comprising a section that comprises a porous mass having an active particle and a binder particle, the active particle comprising an element selected from the group consisting of: a nano-scaled carbon particle, a carbon nanotube having at least one wall, a carbon nanohorn, a bamboo-like carbon nanostructure, a fullerene, a fullerene aggregate, graphene, a few layer graphene, oxidized graphene, an iron oxide nanoparticle, a nanoparticle, a metal nanoparticle, a gold nanoparticle, a silver nanoparticle, a metal oxide nanoparticle, an alumina nanoparticle, a magnetic nanoparticle, a paramagnetic nanoparticle, a superparamagentic nanoparticle, a gadolinium oxide nanoparticle, a hematite nanoparticle, a magnetite nanoparticle, a
  • the present invention provides a method of making a cigar comprising: providing a tobacco column; attaching a filter to the tobacco column, the filter comprising a section that comprises a porous mass that comprises activated carbon and a binder particle, the porous mass having a carbon loading of at least about 6 mg/mm, and an EPD of about 20 mm of water or less per mm of porous mass; and forming a cigar.
  • the present invention provides a cigarette pack comprising a pack and at least one cigarette comprising a filter that comprises at least one filter section having a porous mass that comprises an active particle and a binder particle, the porous mass having: an active particle loading of at least about 1 mg/mm, and an EPD of about 20 mm of water or less per mm of porous mass, and wherein the active particle is not carbon.
  • the present invention provides a cigarette pack comprising a pack and at least one cigarette comprising a filter that comprises at least one filter section having a porous mass that comprises an active particle and a binder particle, the active particle comprising an element selected from the group consisting of: a nano-scaled carbon particle, a carbon nanotube having at least one wall, a carbon nanohorn, a bamboo-like carbon nanostructure, a fullerene, a fullerene aggregate, graphene, a few layer graphene, oxidized graphene, an iron oxide nanoparticle, a nanoparticle, a metal nanoparticle, a gold nanoparticle, a silver nanoparticle, a metal oxide nanoparticle, an alumina nanoparticle, a magnetic nanoparticle, a paramagnetic nanoparticle, a superparamagentic nanoparticle, a gadolinium oxide nanoparticle, a hematite nanoparticle, a magnetite nanoparticle, a gado-nan
  • the present invention provides a cigarette pack comprising a pack and at least one cigarette comprising a filter that comprises at least one filter section having a porous mass that comprises an active particle and a binder particle, the porous mass having a carbon loading of at least about 6 mg/mm, and an EPD of about 20 mm of water or less per mm of porous mass.
  • the present invention provides a cigar pack comprising a pack and at least one cigar comprising a filter that comprises at least one filter section having a porous mass that comprises an active particle and a binder particle, the porous mass having: an active particle loading of at least about 1 mg/mm, and an EPD of about 20 mm of water or less per mm of porous mass.
  • the present invention provides a cigar comprising a filter that comprises at least one filter section having a porous mass that comprises an active particle and a binder particle, the porous mass having: an active particle loading of at least about 1 mg/mm, and an EPD of about 20 mm of water or less per mm of porous mass.
  • the present invention provides a cigar pack comprising a pack and at least one cigar comprising a filter that comprises at least one filter section having a porous mass that comprises an active particle and a binder particle, the active particle comprising an element selected from the group consisting of: a nano-scaled carbon particle, a carbon nanotube having at least one wall, a carbon nanohorn, a bamboo-like carbon nanostructure, a fullerene, a fullerene aggregate, graphene, a few layer graphene, oxidized graphene, an iron oxide nanoparticle, a nanoparticle, a metal nanoparticle, a gold nanoparticle, a silver nanoparticle, a metal oxide nanoparticle, an alumina nanoparticle, a magnetic nanoparticle, a paramagnetic nanoparticle, a superparamagentic nanoparticle, a gadolinium oxide nanoparticle, a hematite nanoparticle, a magnetite nanoparticle, a gado-nanotube
  • the present invention provides a cigarette carton, the cigarette carton comprising at least one cigarette pack, the cigarette pack comprising a pack and at least one cigarette comprising a filter that comprises at least one filter section having a porous mass that comprises an active particle and a binder particle, the porous mass having: an active particle loading of at least about 1 mg/mm, an EPD of about 20 mm of water or less per mm of porous mass, and wherein the active particle is not carbon.
  • the present invention provides a cigarette carton, the cigarette carton comprising at least one cigarette pack, the cigarette pack comprising a pack and at least one cigarette comprising a filter that comprises at least one filter section having a porous mass that comprises an active particle and a binder particle, the active particle comprising an element selected from the group consisting of: a nano-scaled carbon particle, a carbon nanotube having at least one wall, a carbon nanohorn, a bamboo-like carbon nanostructure, a fullerene, a fullerene aggregate, graphene, a few layer graphene, oxidized graphene, an iron oxide nanoparticle, a nanoparticle, a metal nanoparticle, a gold nanoparticle, a silver nanoparticle, a metal oxide nanoparticle, an alumina nanoparticle, a magnetic nanoparticle, a paramagnetic nanoparticle, a superparamagentic nanoparticle, a gadolinium oxide nanoparticle, a hematite nanoparticle
  • the present invention provides a cigarette carton, the cigarette carton comprising at least one cigarette pack, the cigarette pack comprising a pack and at least one cigarette comprising a filter that comprises at least one filter section having a porous mass that comprises an active particle and a binder particle, the porous mass having: a carbon loading of at least about 6 mg/mm, and an EPD of about 20 mm of water or less per mm of porous mass.
  • the present invention provides a cigar carton, the cigar carton comprising at least one cigar pack, the cigar pack comprising a pack and at least one cigar comprising a filter that comprises at least one filter section having a porous mass that comprises an active particle and a binder particle, the porous mass having: an active particle loading of at least about 1 mg/mm, and an EPD of about 20 mm of water or less per mm of porous mass.
  • the present invention provides a cigar carton, the cigar carton comprising at least one cigar pack, the cigar pack comprising a pack and at least one cigar comprising a filter that comprises at least one filter section having a porous mass that comprises an active particle and a binder particle, the active particle comprising a element selected from the group consisting of: a nano-scaled carbon particle, a carbon nanotube having at least one wall, a carbon nanohorn, a bamboo-like carbon nanostructure, a fullerene, a fullerene aggregate, graphene, a few layer graphene, oxidized graphene, an iron oxide nanoparticle, a nanoparticle, a metal nanoparticle, a gold nanoparticle, a silver nanoparticle, a metal oxide nanoparticle, an alumina nanoparticle, a magnetic nanoparticle, a paramagnetic nanoparticle, a superparamagentic nanoparticle, a gadolinium oxide nanoparticle, a hematite nanoparticle, a magnet
  • the present invention provides a cigar carton, the cigar carton comprising at least one cigar pack, the cigar pack comprising a pack and at least one cigar comprising a filter that comprises at least one filter section having a porous mass that comprises an active particle and a binder particle, the porous mass having: a carbon loading of at least about 6 mg/mm, and an EPD of about 20 mm of water or less per mm of porous mass.
  • the present invention provides a method of making a smoking device filter, comprising incorporating into the smoking device filter a filter that comprises at least one filter section having a porous mass having an active particle and a binder particle, the porous mass having: an active particle loading of at least about 1 mg/mm, an EPD of about 20 mm of water or less per mm of porous mass, and wherein the active particle is not carbon.
  • the present invention provides a method of making a smoking device filter, comprising incorporating into the smoking device filter a filter that comprises at least one filter section having a porous mass having an active particle and a binder particle, the active particle comprising an element selected from the group consisting of: a nano-scaled carbon particle, a carbon nanotube having at least one wall, a carbon nanohorn, a bamboo-like carbon nanostructure, a fullerene, a fullerene aggregate, graphene, a few layer graphene, oxidized graphene, an iron oxide nanoparticle, a nanoparticle, a metal nanoparticle, a gold nanoparticle, a silver nanoparticle, a metal oxide nanoparticle, an alumina nanoparticle, a magnetic nanoparticle, a paramagnetic nanoparticle, a superparamagentic nanoparticle, a gadolinium oxide nanoparticle, a hematite nanoparticle, a magnetite nanoparticle, a gado-n
  • the present invention provides a method of making a smoking device filter comprising: incorporating into the smoking device filter a filter that comprises at least one filter section having a porous mass having an active particle and a binder particle, the porous mass having: a carbon loading of at least about 6 mg/mm, and an EPD of about 20 mm of water or less per mm of porous mass.
  • the present invention provides a process for producing a smoking device filter comprising: providing a first filter section, providing at least a second filter section, the second filter section having a porous mass having an active particle and a binder particle, the porous mass having: an active particle loading of at least about 1 mg/mm, an EPD of about 20 mm of water or less per mm of porous mass; joining the first filter section and the at least one second filter so as to form a smoking device filter.
  • the present invention provides a process for producing a smoking device filter comprising: providing a first filter section, providing at least a second filter section, the second filter section having a porous mass having an active particle and a binder particle, the active particle comprising an element selected from the group consisting of: a nano-scaled carbon particle, a carbon nanotube having at least one wall, a carbon nanohorn, a bamboo-like carbon nanostructure, a fullerene, a fullerene aggregate, graphene, a few layer graphene, oxidized graphene, an iron oxide nanoparticle, a nanoparticle, a metal nanoparticle, a gold nanoparticle, a silver nanoparticle, a metal oxide nanoparticle, an alumina nanoparticle, a magnetic nanoparticle, a paramagnetic nanoparticle, a superparamagentic nanoparticle, a gadolinium oxide nanoparticle, a hematite nanoparticle, a magnetite nanoparticle, a gad
  • the present invention provides a process for producing a smoking device filter comprising: providing a first filter section, providing at least a second filter section, the second filter section having a porous mass having an active particle and a binder particle, the porous mass having: a carbon loading of at least about 6 mg/mm, an EPD of about 20 mm of water or less per mm of porous mass; joining the first filter section and the at least one second filter so as to form a smoking device filter.
  • the present invention provides a method of smoking a smoking device comprising: heating or lighting a smoking device to form smoke, the smoking device comprising at least one filter section having a porous mass having an active particle and a binder particle, the porous mass having: an active particle loading of at least about 1 mg/mm, an EPD of about 20 mm of water or less per mm of porous mass; and drawing the smoke through the smoking device, wherein the filter section reduces the presence of at least one component in the smoke as compared to a filter without the porous mass.
  • the present invention provides a method of smoking a smoking device comprising: heating or lighting a smoking device to form smoke, the smoking device comprising at least one filter section having a porous mass having an active particle and a binder particle, the active particle comprising an element selected from the group consisting of: a nano-scaled carbon particle, a carbon nanotube having at least one wall, a carbon nanohorn, a bamboo-like carbon nanostructure, a fullerene, a fullerene aggregate, graphene, a few layer graphene, oxidized graphene, an iron oxide nanoparticle, a nanoparticle, a metal nanoparticle, a gold nanoparticle, a silver nanoparticle, a metal oxide nanoparticle, an alumina nanoparticle, a magnetic nanoparticle, a paramagnetic nanoparticle, a superparamagentic nanoparticle, a gadolinium oxide nanoparticle, a hematite nanoparticle, a magnetite nanoparticle, a gad
  • the present invention provides a method of smoking a smoking device comprising: heating or lighting a smoking device to form smoke, the smoking device comprising at least one filter section having a porous mass having an active particle and a binder particle, the porous mass having: a carbon loading of at least about 6 mg/mm, an EPD of about 20 mm of water or less per mm of porous mass; and drawing the smoke through the smoking device, wherein the filter section reduces the presence of at least one component in the smoke as compared to a filter without the porous mass.
  • the present invention provides an apparatus for producing a smoking device filter having at least a plurality of sections comprising: a container comprising at least a plurality of first filter section pieces; a second container comprising at least a plurality of second filter section pieces, the second filter section pieces comprising a porous mass having an active particle and a binder particle, the porous mass having: an active particle loading of at least about 1 mg/mm, an EPD of about 20 or less mm of water or less per mm of porous mass; a joiner section wherein a first filter section piece and a second filter section piece are joined; a wrapping area wherein the first filter section piece and the second filter section piece are wrapped to form a smoking device filter; and a conveyor to transport the smoking device filter to a subsequent area for storage or use.
  • the present invention provides an apparatus for producing a smoking device filter having at least a plurality of sections comprising: a container comprising at least a plurality of first filter section pieces; a second container comprising at least a plurality of second filter section pieces, the second filter section pieces comprising a porous mass having an active particle and a binder particle, the active particle comprising an element selected from the group consisting of: a nano-scaled carbon particle, a carbon nanotube having at least one wall, a carbon nanohorn, a bamboo-like carbon nanostructure, a fullerene, a fullerene aggregate, graphene, a few layer graphene, oxidized graphene, an iron oxide nanoparticle, a nanoparticle, a metal nanoparticle, a gold nanoparticle, a silver nanoparticle, a metal oxide nanoparticle, an alumina nanoparticle, a magnetic nanoparticle, a paramagnetic nanoparticle, a superparamagentic nanoparticle, a gadolinium
  • the present invention provides an apparatus for producing a smoking device filter having at least a plurality of sections comprising: a container comprising at least a plurality of first filter section pieces; a second container comprising at least a plurality of second filter section pieces, the second filter section pieces comprising a porous mass having an active particle and a binder particle, the porous mass having: a carbon loading of at least about 6 mg/mm, an EPD of about 20 mm of water or less per mm of porous mass; a joiner section wherein a first filter section piece and a second filter section piece are joined; a wrapping area wherein the first filter section piece and the second filter section piece are wrapped to form a smoking device filter; a conveyor to transport the smoking device filter to a subsequent area for storage or use.
  • the present invention provides a method of making a smoking device filter comprising: providing a container that comprises at least a plurality of first filter section pieces; providing a second container comprising at least a plurality of second filter section pieces, wherein the second filter section pieces comprise a porous mass that comprises an active particle and a binder particle; joining a first filter section piece and a second filter section piece end-to-end along the longitudinal axis of the first filter section piece and the second filter section piece to form an unwrapped filter rod; wrapping the first filter section piece and the second filter section piece with a paper to form a filter rod; and transporting the filter rod to a subsequent area for storage or use.
  • the present invention provides a process for producing a smoking device comprising: providing a filter rod comprising at least one filter section comprising a porous mass that comprises an active particle and a binder particle, the porous mass having: an active particle loading of at least about 1 mg/mm, an EPD of about 20 mm of water or less per mm of porous mass; providing a tobacco column; cutting the filter rod transverse to its longitudinal axis through the center of the rod to form at least two filters having at least one filter section, each filter section comprising a porous mass that comprises an active particle and a binder particle; and joining at least one of the filters to the tobacco column along the longitudinal axis of the filter and the longitudinal axis of the tobacco column to form at least one smoking device.
  • the present invention provides a process for producing a smoking device comprising: providing a filter rod comprising at least one filter section comprising a porous mass that comprises an active particle and a binder particle, the active particle comprising an element selected from the group consisting of: a nano-scaled carbon particle, a carbon nanotube having at least one wall, a carbon nanohorn, a bamboo-like carbon nanostructure, a fullerene, a fullerene aggregate, graphene, a few layer graphene, oxidized graphene, an iron oxide nanoparticle, a nanoparticle, a metal nanoparticle, a gold nanoparticle, a silver nanoparticle, a metal oxide nanoparticle, an alumina nanoparticle, a magnetic nanoparticle, a paramagnetic nanoparticle, a superparamagentic nanoparticle, a gadolinium oxide nanoparticle, a hematite nanoparticle, a magnetite nanoparticle, a gado-nanotube,
  • the present invention provides a smoking device holder comprising a filter that comprises at least one filter section having an active particle loading of at least about 1 mg/mm and an EPD of about 20 mm of water or less per mm of porous mass.
  • the present invention provides a smoking device holder comprising a filter that comprises at least one filter section having an active particle, the active particle comprising an element selected from the group consisting of: a nano-scaled carbon particle, a carbon nanotube having at least one wall, a carbon nanohorn, a bamboo-like carbon nanostructure, a fullerene, a fullerene aggregate, graphene, a few layer graphene, oxidized graphene, an iron oxide nanoparticle, a nanoparticle, a metal nanoparticle, a gold nanoparticle, a silver nanoparticle, a metal oxide nanoparticle, an alumina nanoparticle, a magnetic nanoparticle, a paramagnetic nanoparticle, a superparamagentic nanoparticle, a gadolinium oxide nanoparticle, a hematite nanoparticle, a magnetite nanoparticle, a gado-nanotube, an endofullerene, Gd@C60, a core-shell nano
  • the present invention provides a smoking device holder comprising a filter that comprises at least one filter section having a carbon loading of at least about 6 mg/mm, and an EPD of about 20 mm of water or less per mm of porous mass.
  • the present invention provides a pipe comprising a filter that comprises at least one filter section having a porous mass, the porous mass having an active particle loading of at least about 1 mg/mm and an EPD of 20 mm of water or less per mm of porous mass.
  • the present invention provides a pipe comprising a filter that comprises at least one filter section having a porous mass that comprises an active particle and a binder particle, the active particle comprising an element selected from the group consisting of: a nano-scaled carbon particle, a carbon nanotube having at least one wall, a carbon nanohorn, a bamboo-like carbon nanostructure, a fullerene, a fullerene aggregate, graphene, a few layer graphene, oxidized graphene, an iron oxide nanoparticle, a nanoparticle, a metal nanoparticle, a gold nanoparticle, a silver nanoparticle, a metal oxide nanoparticle, an alumina nanoparticle, a magnetic nanoparticle, a paramagnetic nanoparticle, a superparamagentic nanoparticle, a gadolinium oxide nanoparticle, a hematite nanoparticle, a magnetite nanoparticle, a gado-nanotube, an endofullerene, Gd
  • the present invention provides a smoking device filter comprising at least three neighboring in-series sections, wherein a first section has an active particle loading of at least about 1 mg/mm and an EPD of about 20 mm of water or less per mm of porous mass, and a second section and a third section that each comprise a section that is selected from the group consisting of: a cavity, cellulose acetate, polypropylene, polyethylene, polyolefin tow, polypropylene tow, polyethylene terephthalate, polybutylene terephthalate, random oriented acetate, a paper, a corrugated paper, a concentric filter, carbon-on-tow, silica, magnesium silicate, a zeolite, a molecular sieve, a metallocene, a salt, a catalyst, sodium chloride, nylon, a flavorant, tobacco, a capsule, cellulose, a cellulosic derivative, a catalytic converter, iodine pent
  • the present invention provides a smoking device filter comprising at least three neighboring in-series sections, wherein a first section has a porous mass that comprises an active particle and a binder particle, the active particle comprising an element selected from the group consisting of: a nano-scaled carbon particle, a carbon nanotube having at least one wall, a carbon nanohorn, a bamboo-like carbon nanostructure, a fullerene, a fullerene aggregate, graphene, a few layer graphene, oxidized graphene, an iron oxide nanoparticle, a nanoparticle, a metal nanoparticle, a gold nanoparticle, a silver nanoparticle, a metal oxide nanoparticle, an alumina nanoparticle, a magnetic nanoparticle, a paramagnetic nanoparticle, a superparamagentic nanoparticle, a gadolinium oxide nanoparticle, a hematite nanoparticle, a magnetite nanoparticle, a gado-nanotube, an
  • the present invention provides a smoking device having a filter that comprises a porous mass that comprises an active particle and a binder particle, the active particle being capable of removing or reducing at least one smoke component from a smoke stream, the smoke component being selected from the group consisting of: acetaldehyde, acetamide, acetone, acrolein, acrylamide, acrylonitrile, aflatoxin B-1, 4-aminobiphenyl, 1-aminonaphthalene, 2-aminonaphthalene, ammonia, ammonium salts, anabasine, anatabine, 0-anisidine, arsenic, A- ⁇ -C, benz[a]anthracene, benz[b]fluoroanthene, benz[j]aceanthrylene, benz[k]fluoroanthene, benzene, benzo(b)furan, benzo[a]pyrene, benzo[c]phenanthrene, beryllium, 1,
  • the present invention provides a process for producing a smoking device filter comprising: providing a first filter section, providing at least a second filter section, the second filter section having a porous mass having an active particle and a binder particle, the active particle being capable of removing or reducing at least one smoke component from a smoke stream, the smoke component being selected from the group consisting of: acetaldehyde, acetamide, acetone, acrolein, acrylamide, acrylonitrile, aflatoxin B-1, 4-aminobiphenyl, 1-aminonaphthalene, 2-aminonaphthalene, ammonia, ammonium salts, anabasine, anatabine, 0-anisidine, arsenic, A- ⁇ -C, benz[a]anthracene, benz[b]fluoroanthene, benz[j]aceanthrylene, benz[k]fluoroanthene, benzene, benzo(b)furan, benzo
  • the present invention provides a porous mass having a void volume in the range of about 40% to about 90%.
  • the present invention provides a filter that comprises a porous mass having a void volume in the range of about 40% to about 90%.
  • the present invention provides a smoking device that comprises a filter that comprises a porous mass having a void volume in the range of about 40% to about 90%.
  • the present invention provide a filter that may be used in a smoking device, the filter comprising a porous mass that comprises an active particle and a binder particle, the filter having at least one of the following or any combination thereof:
  • the porous mass was made from 25 weight % GUR 2105 from Ticona, of Dallas, TX and 75 weight % PICA RC 259 (95% active carbon) from PICA USA, Inc. of Columbus, OH.
  • the porous mass has a % void volume of 72% and an encapsulated pressure drop (EPD) of 2.2 mm of water/mm of porous mass length.
  • the porous mass has a circumference of about 24.5 mm.
  • the PICA RC 259 carbon had an average particle size of 569 microns ( ⁇ ).
  • the porous mass was made by mixing the resin (GUR 2105) and carbon (PICA RC 259) and then filling a mold with the mixture without pressure on the heated mixture (free sintering). Then, the mold was heated to 200°C for 40 minutes. Thereafter, the porous mass was removed from the mold and allowed to cool. A defined-length section of the porous mass was combined with a sufficient amount of cellulose acetate tow to yield a filter with a total encapsulated pressure drop of 70 mm of water. All smoke assays were performed according to tobacco industry standards.
  • the porous mass was made from 30 weight % GUR X192 from Ticona, of Dallas, TX and 70 weight % PICA 30x70 (60% active carbon) from PICA USA, Inc. of Columbus, OH.
  • the porous mass has a % void volume of 75% and an encapsulated pressure drop (EPD) of 3.3 mm of water/mm of porous mass length.
  • the porous mass has a circumference of about 24.5 mm.
  • the PICA 30x70 carbon had an average particle size of 405 microns ( ⁇ ).
  • the porous mass was made by mixing the resin (GUR X192) and carbon (PICA 30x70) and then filling a mold with the mixture without pressure on the heated mixture (free sintering). Then, the mold was heated to 220°C for 60 minutes. Thereafter, the porous mass was removed from the mold and allowed to cool. A defined-length section of the porous mass was combined with a sufficient amount of cellulose acetate tow to yield a filter with a total encapsulated pressure drop of 70 mm of water. All smoke assays were performed according to tobacco industry standards.
  • porous ion exchange resin mass effectiveness of a porous ion exchange resin mass in removing certain components of the cigarette smoke is illustrated.
  • the porous mass was made from 20 weight % GUR 2105 from Ticona, of Dallas, TX and 80 weight % of an amine based resin (AMBERLITE IRA96RF from Rohm & Haas of Philadelphia, PA).
  • a 10 mm section of the porous mass was combined with a sufficient amount of cellulose acetate tow (12 mm) to yield a filter with a total encapsulated pressure drop of 70 mm of water. All smoke assays were performed according to tobacco industry standards.
  • the porous mass was made from 20 weight % GUR 2105 from Ticona, of Dallas, TX and 80 weight % of desiccant (calcium sulfate, DRIERITE from W. A. Hammond DRIERITE Co. Ltd. of Xenia, OH).
  • a 10 mm section of the porous mass was combined with a sufficient amount of cellulose acetate tow (15 mm) to yield a filter with a total pressure drop of 70 mm of water. All smoke assays were performed according to tobacco industry standards.
  • a carbon-on-tow filter element is compared to the inventive porous mass.
  • equal total carbon loadings are compared.
  • the amount of carbon in each element is the same; the length of the element is allowed to change so that equal amounts of carbon were obtained.
  • the reported change in smoke component is made in relation to conventional cellulose acetate filter (the % change is in relation to a conventional cellulose acetate filter).
  • All filter tips consisted of the carbon element and cellulose acetate tow. All filter tips were tipped with a sufficient length of cellulose acetate filter tow to obtain a targeted filter pressure drop of 70 mm of water.
  • the total filter length was 20 mm (carbon element and tow element).
  • the carbon was 30x70, 60% active PICA carbon.
  • a porous mass made with a highly active carbon (95% CCl 4 absorption) is compared with a porous mass made with a lower active carbon (60% CCl 4 absorption).
  • the combined filters were made using a 10 mm section of the porous mass plus a sufficient length of cellulose acetate to reach a targeted combined encapsulated pressure drop of 69-70 mm of water.
  • These filters were attached to a commercial tobacco column and smoked on a Cerulean SM 450 smoking machine using the Canadian intense smoking protocol (i.e., T-115, "Determination of "Tar,” Nicotine and Carbon Monoxide in Mainstream Tobacco Smoke," Health Canada, 1999 ).
  • the high active carbon was PICA RC 259, particle size 20x50, 95% activity (CCl 4 adsorption).
  • the low active carbon was PICA PCA, particle size 30x70, 60% activity (CCl 4 adsorption).
  • the carbon loading of each porous mass element was 18.2 mg/mm, low active carbon, and 16.7 mg/mm, high active carbon. The data is reported in relation to a conventional cellulose acetate filter.
  • porous masses as set forth in Tables 1-3, are used to demonstrate that filters made with such porous masses can be used to manufacture cigarettes that meet World Health Organization (WHO) standards for cigarettes.
  • WHO standards may be found in WHO Technical Report Series No. 951, The Scientific Basis of Tobacco Product Regulation, World Health Organization (2008 ), Table 3.10, page 112. The results reported below, show that the porous mass can be used to reduce the listed components from tobacco smoke to a level below that recommended by the WHO.
  • porous mass where ion exchange resins are used as the active particles are used to demonstrate that filters made with such porous masses can be used to manufacture cigarettes that meet World Health Organization (WHO) standards for cigarettes.
  • WHO standards may be found in WHO Technical Report Series No. 951, The Scientific Basis of Tobacco Product Regulation, World Health Organization (2008 ), Table 3.10, page 112. The results reported below, show that the porous mass can be used to reduce the certain components from tobacco smoke to a level below that recommended by the WHO.
  • Table 14 ( ⁇ g) Median 1 Upper limit (125% of median) Highest delivery brand 1 % reduction 2 10 mm Amount delivered 10 mm Acetaldehyde 687.6 859.5 997.2 61 388.9 Acrolein 66.5 83.2 99.5 56 43.8 Formaldehyde 37.7 47.1 90.5 100 0.0 1 Information based on data in Counts, ME, et al., (2004) Mainstream smoke toxicant yields and predicting relationships from a worldwide market sample of cigarette brands: ISO smoking conditions, Regulatory Toxicology and Pharmacology, 39:111-134 , and Counts ME, et al., (2005) Smoke composition and predicting relationships for international commercial cigarettes smoked with three machine-smoking conditions, Regulatory Toxicology and Pharmacology, 41:185-227 . 2 % reductions obtained from Table 4 above.
  • the encapsulated pressure drop was measured for a filter.
  • the porous masses were formed by mixing the binder particles (ultra high molecular weight polyethylene) and active particles (carbon) at a desired weight ratio in a tumbled jar until well mixed.
  • a mold formed of stainless steel tube having a length of 120 mm, an inside diameter of 7.747 mm, and a circumference of 24.34 mm. The circumference of each of the molds was lined with a standard, non-porous filter plug wrap. With a fitting on the bottom to close off the bottom of the mold, the mixture was then placed into the paper-lined molds to reach to the top of the mold.
  • the mold is tamped (bounced) ten times off of a rubber stopper and then topped off to again reach the top of the paper within the mold and bounced three times.
  • the top of the mold is then sealed and placed in an oven and heated, without the addition of pressure, to a temperature of 220°C for 25 to 45 minutes, depending on the mold design, the molecular weight of the binder particles, and the heat transfer.
  • the encapsulated pressure drop was measured in mm of water. Those components of the mixtures and test results are listed below in Tables 15 - 20 below.
  • the polyethylene binder particles used are from Ticona Polymers LLC, a division of Celanese Corporation of Dallas, TX under the following tradenames, the molecular weights are in parentheses: GUR® 2126 (approximately 4 x 10 6 g/mol), GUR® 4050-3 (approximately 8-9 x 10 6 g/mol), GUR® 2105 (approximately 0.47 x 10 6 g/mol), GUR® X192 (approximately 0.60 x 10 6 g/mol), GUR® 4012 (approximately 1.5 x 10 6 g/mol), and GUR® 4022-6 (approximately 4 x 10 6 g/mol).
  • Binder Particle 1 (GUR® 2105) Binder Particle 2 (GUR®X192) Binder Particle 3 (GUR® 4012) Binder Particle 4 (GUR® 4022-6) Carbon:Binder Particle Weight Ratio Average mm of water/mm Average mm of water/mm Average mm of water/mm Average mm of water/mm 50/50 NA NA 18.48 7.87 60/40 0.94 2.32 15.71 8.00 65/35 1.48 2.40 NA NA 70/30 1.59 2.52 11.43 6.22 75/25 1.88 2.74 NA NA 80/20 2.64 3.25 7.81 5.41
  • the data shown in Figures 6 through 9 were generated from additional EPD testing of porous masses of the present invention based on carbon loading and comparative samples.
  • the porous masses were formed by mixing the binder particles, specifically ultra high molecular weight polyethylene chosen from GUR® 2105, GUR® X192, GUR® 4012, and GUR® 8020), and active particles (carbon) at a desired weight ratio in a tumbled jar until well mixed.
  • a mold formed of stainless steel tube having a length of about 120 mm, an inside diameter of about 7.747 mm, and a circumference of about 24.5 mm (theoretical) or about 17.4 (theoretical). The circumference of each of the molds was lined with a standard, non-porous filter plug wrap.
  • the mixture was then placed into the paper-lined molds to reach to the top of the mold.
  • the mold is tapped (bounced) ten times off of a rubber stopper and then topped off to again reach the top of the paper within the mold and bounced three times.
  • the top of the mold is then sealed and placed in an oven and heated, without the addition of pressure, to a temperature of 220°C for 25 to 45 minutes, depending on the mold design, the molecular weight, and the heat transfer.
  • the length of the filter is then cut down to 100 mm. The circumference of the filters tested is reported. These were substantially circular in shape.
  • the encapsulated pressure drop was measured in mm of water according to the CORESTA procedure.
  • Figure 6 is a comparative document that shows the results of encapsulated pressure drop testing for carbon-on-tow filters having an average circumference of about 24.5 mm.
  • Figure 7 shows the results of encapsulated pressure drop testing for porous mass filters of the present invention (comprising polyethylene and carbon) having an average circumference of about 24.5 mm.
  • Figure 8 is a comparative document that shows the results of encapsulated pressure drop testing for carbon-on-tow filters having an average circumference of about 16.9 mm.
  • Figure 9 shows the results of encapsulated pressure drop testing for porous mass filters of the present invention (comprising polyethylene and carbon) having an average circumference of about 16.9 mm.
  • compositions and methods are described in terms of “comprising,” “containing,” or “including” various components or steps, the compositions and methods can also “consist essentially of” or “consist of” the various components and steps. All numbers and ranges disclosed above may vary by some amount. Whenever a numerical range with a lower limit and an upper limit is disclosed, any number and any included range falling within the range is specifically disclosed. In particular, every range of values (of the form, “from about a to about b,” or, equivalently, “from approximately a to b,” or, equivalently, “from approximately a-b”) disclosed herein is to be understood to set forth every number and range encompassed within the broader range of values.
EP13168042.3A 2010-10-06 2011-07-15 Filtres à fumée pour dispositifs à fumer avec des masses poreuses ayant une charge de particules de carbone et chute de pression encapsulée Withdrawn EP2636319A3 (fr)

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US39021110P 2010-10-06 2010-10-06
US39021310P 2010-10-06 2010-10-06
US12/981,909 US9386803B2 (en) 2010-01-06 2010-12-30 Tobacco smoke filter for smoking device with porous mass of active particulate
PCT/US2011/020013 WO2011084907A1 (fr) 2010-01-06 2011-01-03 Filtre à fumée de tabac pour dispositif à fumer ayant une masse poreuse de particules actives
US201161504023P 2011-07-01 2011-07-01
PCT/US2011/043269 WO2012047348A1 (fr) 2010-10-06 2011-07-07 Filtres à fumée pour des dispositifs pour fumeurs avec masses poreuses à teneur en particules de carbone et chute de pression encapsulée
EP11834774.9A EP2629633A4 (fr) 2010-10-06 2011-07-15 Filtre à fumée pour dispositifs à fumer comportant des masses poreuses ayant une charge de particules de carbone et une chute de pression encapsulée

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EP11834774.9 Division 2011-07-15

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EP11834774.9A Withdrawn EP2629633A4 (fr) 2010-10-06 2011-07-15 Filtre à fumée pour dispositifs à fumer comportant des masses poreuses ayant une charge de particules de carbone et une chute de pression encapsulée

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EA201390508A1 (ru) 2014-03-31
EA201300833A1 (ru) 2014-03-31
PH12013501245A1 (en) 2020-02-03
SG189267A1 (en) 2013-05-31
EP2629633A1 (fr) 2013-08-28
EP2636319A3 (fr) 2014-03-12
MX342775B (es) 2016-10-11
JP2014509833A (ja) 2014-04-24
EA027288B1 (ru) 2017-07-31
CN103209606A (zh) 2013-07-17
EA025010B1 (ru) 2016-11-30
EP2629633A4 (fr) 2014-04-16
KR20130101076A (ko) 2013-09-12
WO2012054111A1 (fr) 2012-04-26
BR122013013917A2 (pt) 2019-08-06
KR101520198B1 (ko) 2015-05-13
JP5901641B2 (ja) 2016-04-13
SG10201501526WA (en) 2015-04-29
BR112013008364A2 (pt) 2016-06-14

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