US3807416A - Reconstituted-tobacco smoking materials - Google Patents

Reconstituted-tobacco smoking materials Download PDF

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Publication number
US3807416A
US3807416A US25640272A US3807416A US 3807416 A US3807416 A US 3807416A US 25640272 A US25640272 A US 25640272A US 3807416 A US3807416 A US 3807416A
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Prior art keywords
tobacco
reconstituted
filler
zinc
percent
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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.)
Expired - Lifetime
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R Hedge
D Molyneux
P Nicholl
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Brown and Williamson Holdings Inc
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Brown and Williamson Holdings Inc
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    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SMOKERS' REQUISITES
    • A24BMANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00Chemical features or treatment of tobacco; Tobacco substitutes
    • A24B15/18Treatment of tobacco products or tobacco substitutes
    • A24B15/28Treatment of tobacco products or tobacco substitutes by chemical substances
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SMOKERS' REQUISITES
    • A24BMANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00Chemical features or treatment of tobacco; Tobacco substitutes
    • A24B15/10Chemical features of tobacco products or tobacco substitutes
    • A24B15/12Chemical features of tobacco products or tobacco substitutes of reconstituted tobacco

Abstract

A smoking material comprises a tobacco component consisting of or comprising a combustible reconstituted tobacco, which smoking material contains a filler intimately incorporated therein and consisting solely or largely of zinc-oxide powder. Preferably the reconstituted tobacco consists solely or essentially of natural tobacco substances. The filler of zinc oxide is in powder form and of a particle less than 150 microns and constitutes between approximately 15-40 percent by weight of the tobacco composition. Adhesion of the components is effected by natural tobacco materials released in the slurrying operation.

Description

United States Patent [191 Hedge et al.

[451 Apr. 30, 1974 RECONSTITUTED-TOBACCO SMOKING MATERIALS [75] Inventors: Roger W. Hedge, Dibden Porlieu;

David J. Molyneux, l-lythe; Peter J. Nicholl, Bassett Wood, all of England [73] Assignee: Brown & Williamson Tobacco Corporation, Louisville, Ky.

[22] Filed: May 24, 1972 [21 Appl. No.: 256,402

[30] Foreign Application Priority Data June ll, 1971 Great Britain ..27522/7l [56] References Cited UNITED STATES PATENTS 3/1973 Normanetal. ..13l /l7R 12/1966 Mays 131/17 2,809,904 10/1957 Kores 131/2 3,106,210 10/1963 Reynolds et al. 131/17 Primary Examiner-Melvin D. Rein Attorney, Agent, or Firm-Finnegan, Henderson, Farabow & Garrett [57]. ABSTRACT A smoking material comprises a tobacco component consisting of or comprising a combustible reconstituted tobacco, which smoking 'material contains a filler intimately incorporated therein and consisting solely or largely of zinc-oxide powder. Preferably the reconstituted tobacco consists solely or essentially of natural tobacco substances. The filler of zinc oxide is in powder form and of a particle less than 150 microns and constitutes between approximately 15-40 percent by weight of the tobacco composition. Adhesion of the components is effected by natural tobacco materials released in the slurrying operation.

1 Claim, N0 Drawings RECONSTITUTED-TOBACCO SMOKING MATERIALS This invention concerns improvement relating to reconstituted-tobacco smoking materials.

According to the invention, a smoking material comprises a tobacco component consisting of or comprising a combustible reconstituted tobacco, which smoking material contains a filler intimately incorporated therein and consisting solely or largely of zinc-oxide powder. Preferably the reconstituted tobacco is of a type which consists solely or essentially of natural tobacco substances. Advantageously, the tiller is added to the tobacco component before it is made into web, sheet or filaments and so that the filler becomes incorporated within the fibrous structure of the reconstituted tobacco. The proportion of filler included may be between 0.5 and 50 percent by weight 'of the smoking material and is preferably between 1.0 and 40 percent. The particle size of the zinc-oxide powder is preferably less than 150 microns.

Reconstituted tobaccos of the aforesaid type preferably to be used are characterized essentially by the absence of extraneous adhesives, binding being achieved by substances of, or released from, natural tobacco. Such reconstituted tobaccos are also to be distinguished from those in which the originating material is pulped chemically, usingnitric acid or caustic soda for example.

Reconstituted tobacco may be made without nontobacco adhesive by several known methods:

1. For example, as described in US. Patent Specification No. 3,043,723, reconstituted tobacco may be produced by disintegrating hot-water-extracted tobacco parts, mixing the extracted tobacco parts as binder with tobacco fines such as lamina or midribs, reducing the particle size of the mixture and casting a sheet on a solid band, for example of stainless steel, and evaporating the water.

In this case, zinc-oxide powder can be added together with the tobacco fines to the binder prepared from the water-extracted tobacco parts.

2. Filamentary reconstituted tobacco may be produced by extruding a mixture of water and tobacco parts comminuted to powder form, as described in United States Patent Specification 3,203,432.

The zinc oxide powder can be added to the comminuted tobacco prior to the addition of the water and subsequent extrusion.

3. According to another method, reconstitutedtobacco sheet may be produced by laying a web of fibres, obtained by pulping tobacco material, on a Fourdrinier machine. The web may or may not be impregnated with concentrated aqueous tobacco extract,

% Pressure Total Particulate Matter in Smoke Zno in Drop It] Igur- Sheat ette, mm Watering pct 71/ Reduction Gauge cigarette The reduction in total particulate matter is greater than would be expected from the dilution represented by the content of filler.

An example of the application of the invention to reconstituted tobacco produced by Method (3) will now be described:

Threshed stem from Burley tobacco was cooked three times in successive batches of 10 times its own weight of water at -95C for 30 minutes each. The extracted stem was passed through a disc mill at 16.5 percent consistency, the clearance between plates being 0.035 ins. The consistency was then reduced to 2 percent and the material was beaten for 20 minutes in a conventional Valley beater. The resultant stock was diluted to 0.6 percent consistency and fed, together with finely divided zinc oxide (of a size less than 150 microns) to the headbox of a conventional Fourdrinier paper-making machine of the tissue-paper type. A continuous sheet with a final thickness of 0.13-0.23 mm and a base weight of 40-50g/m was produced. Because of the low degree of retention of the zinc-oxide powder, in relation to the fibrous tobacco material on the Fourdrinier wire, two to three times the quantity of zinc oxide required in the final sheet should be added to the head-box of the machine. The sheet produced was cut at 56 cuts per inch and made into cigarettes. The cigarettes were smoked on a conventional machine at l puff per minute of 35 ml volume and 2 seconds duration and the smoke was collected on a Cambridge Filter. The filter was extracted with methanol and the extract, after filtration, was evaporated off on a water bath. The remaining tar was baked for 16 huts at C. Analysis gave the following results:

Baked Tar in Smok The results show that the reduction in baked tar was considerably greater than would be expected from the dilution represented by the content of filler.

The smoke from cigarettes produced as described above was found to be agreeable.

We claim:

1. The method of reducing the T.P.M. from tobacco smoke to an extent greater than that expected from a tobacco dilution by a non-combustible filler means of equal mass comprising intimately incorporating in a tobacco slurry finely divided ZnO powder of a particle size less than microns, said ZnO constituting approximately l5-40 percent by weight of the tobacco to achieve a tar reduction in an amount up to 64 percent and sheeting the ZnO containing tobacco slurry, the binding being achieved substantially only by substances released from the natural tobacco in slurrying the said tobacco.

US3807416A 1971-06-11 1972-05-24 Reconstituted-tobacco smoking materials Expired - Lifetime US3807416A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2752271 1971-06-11

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US3807416A true US3807416A (en) 1974-04-30

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US3807416A Expired - Lifetime US3807416A (en) 1971-06-11 1972-05-24 Reconstituted-tobacco smoking materials

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US (1) US3807416A (en)
BE (1) BE784272A (en)
DE (1) DE2227832A1 (en)
DK (1) DK128223B (en)
FI (1) FI51140C (en)
NL (1) NL7207809A (en)

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3893464A (en) * 1973-12-19 1975-07-08 Liggett & Myers Inc Tobacco composition
US3987801A (en) * 1973-07-24 1976-10-26 Tamag Basel Ag Smokeable product with meerschaum particles as absorbents
US20030131859A1 (en) * 2001-08-31 2003-07-17 Ping Li Oxidant/catalyst nanoparticles to reduce tobacco smoke constituents such as carbon monoxide
US20040007241A1 (en) * 2002-04-12 2004-01-15 Ping Li Partially reduced nanoparticle additives to lower the amount of carbon monoxide and/or nitric oxide in the mainstream smoke of a cigarette
US20040025895A1 (en) * 2001-08-31 2004-02-12 Ping Li Oxidant/catalyst nanoparticles to reduce tobacco smoke constituents such as carbon monoxide
US20040040566A1 (en) * 2002-08-30 2004-03-04 Ping Li Manganese oxide mixtures in nanoparticle form to lower the amount of carbon monoxide and/or nitric oxide in the mainstream smoke of a cigarette
US6769437B2 (en) 2002-04-08 2004-08-03 Philip Morris Incorporated Use of oxyhydroxide compounds for reducing carbon monoxide in the mainstream smoke of a cigarette
US20040250828A1 (en) * 2003-06-13 2004-12-16 Zhaohua Luan Nanoscale catalyst particles/aluminosilicate to reduce carbon monoxide in the mainstream smoke of a cigarette
US20040250825A1 (en) * 2003-06-13 2004-12-16 Sarojini Deevi Nanoscale composite catalyst to reduce carbon monoxide in the mainstream smoke of a cigarette
US20040250827A1 (en) * 2003-06-13 2004-12-16 Sarojini Deevi Catalyst to reduce carbon monoxide in the mainstream smoke of a cigarette
US20040250826A1 (en) * 2003-06-13 2004-12-16 Ping Li Catalyst to reduce carbon monoxide and nitric oxide from the mainstream smoke of a cigarette
WO2004110189A2 (en) 2003-06-13 2004-12-23 Philip Morris Products S.A. Cigarette wrapper with catalytic filler and methods of making same
US20050022833A1 (en) * 2003-06-13 2005-02-03 Shalva Gedevanishvili Shredded paper with catalytic filler in tobacco cut filler and methods of making same
US20050039765A1 (en) * 2003-08-22 2005-02-24 Philip Morris Usa, Inc. Method for dispersing powder materials in a cigarette rod
US20050109356A1 (en) * 2003-10-27 2005-05-26 Philip Morris Usa Inc. Reduction of carbon monoxide and nitric oxide in smoking articles using nanoscale particles and/or clusters of nitrided transition metal oxides
US20050121047A1 (en) * 2003-10-27 2005-06-09 Philip Morris Usa Inc. Cigarettes and cigarette components containing nanostructured fibril materials
US20050126583A1 (en) * 2003-10-27 2005-06-16 Philip Morris Usa Inc. Tobacco cut filler including metal oxide supported particles
US20050166935A1 (en) * 2003-10-27 2005-08-04 Philip Morris Usa Inc. Reduction of carbon monoxide in smoking articles using transition metal oxide clusters
US20050166934A1 (en) * 2003-10-27 2005-08-04 Philip Morris Usa Inc. In situ synthesis of composite nanoscale particles
US20050211259A1 (en) * 2003-10-27 2005-09-29 Philip Morris Usa Inc. Cigarette wrapper with nanoparticle spinel ferrite catalyst and methods of making same
US20050263163A1 (en) * 2003-10-27 2005-12-01 Philip Morris Usa Inc. Formation and deposition of sputtered nanoscale particles in cigarette manufacture
US20050263162A1 (en) * 2003-10-27 2005-12-01 Philip Morris Usa Inc. Preparation of mixed metal oxide catalysts from nanoscale particles
US20050263164A1 (en) * 2003-10-27 2005-12-01 Philip Morris Usa Inc. Methods for forming transition metal oxide clusters and smoking articles comprising transition metal oxide clusters
US20060032510A1 (en) * 2003-10-27 2006-02-16 Philip Morris Usa Inc. In situ synthesis of composite nanoscale particles
US20060037621A1 (en) * 2000-11-10 2006-02-23 Bereman Robert D Method of making a smoking composition
US20060196517A1 (en) * 2005-02-04 2006-09-07 Philip Morris Usa Inc. Tobacco powder supported catalyst particles
US8701681B2 (en) 2003-10-27 2014-04-22 Philip Morris Usa Inc. Use of oxyhydroxide compounds in cigarette paper for reducing carbon monoxide in the mainstream smoke of a cigarette

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8609603D0 (en) * 1986-04-19 1986-05-21 Hardy L R Tobacco products

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2809904A (en) * 1954-11-17 1957-10-15 Raymar Company Smoking product
US3106210A (en) * 1957-11-18 1963-10-08 Reynolds Metals Co Smoking tobacco
US3292636A (en) * 1964-05-04 1966-12-20 Union Carbide Corp Smoking tobacco preparation
US3720214A (en) * 1970-12-03 1973-03-13 Liggett & Myers Inc Smoking composition

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2809904A (en) * 1954-11-17 1957-10-15 Raymar Company Smoking product
US3106210A (en) * 1957-11-18 1963-10-08 Reynolds Metals Co Smoking tobacco
US3292636A (en) * 1964-05-04 1966-12-20 Union Carbide Corp Smoking tobacco preparation
US3720214A (en) * 1970-12-03 1973-03-13 Liggett & Myers Inc Smoking composition

Cited By (67)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3987801A (en) * 1973-07-24 1976-10-26 Tamag Basel Ag Smokeable product with meerschaum particles as absorbents
US3893464A (en) * 1973-12-19 1975-07-08 Liggett & Myers Inc Tobacco composition
US20060037621A1 (en) * 2000-11-10 2006-02-23 Bereman Robert D Method of making a smoking composition
US20030131859A1 (en) * 2001-08-31 2003-07-17 Ping Li Oxidant/catalyst nanoparticles to reduce tobacco smoke constituents such as carbon monoxide
US7011096B2 (en) 2001-08-31 2006-03-14 Philip Morris Usa Inc. Oxidant/catalyst nanoparticles to reduce carbon monoxide in the mainstream smoke of a cigarette
US20040025895A1 (en) * 2001-08-31 2004-02-12 Ping Li Oxidant/catalyst nanoparticles to reduce tobacco smoke constituents such as carbon monoxide
US20070113862A1 (en) * 2001-08-31 2007-05-24 Philip Morris Usa Inc. Oxidant/catalyst nanoparticles to reduce tobacco smoke constituents such as carbon monoxide
US7017585B2 (en) 2001-08-31 2006-03-28 Philip Morris Usa Inc. Oxidant/catalyst nanoparticles to reduce tobacco smoke constituents such as carbon monoxide
US20040159328A1 (en) * 2002-04-08 2004-08-19 Mohammad Hajaligol Use of oxyhydroxide compounds for reducing carbon monoxide in the mainstream smoke of a cigarette
US6769437B2 (en) 2002-04-08 2004-08-03 Philip Morris Incorporated Use of oxyhydroxide compounds for reducing carbon monoxide in the mainstream smoke of a cigarette
US7228862B2 (en) 2002-04-08 2007-06-12 Philip Morris Usa Inc. Use of oxyhydroxide compounds for reducing carbon monoxide in the mainstream smoke of a cigarette
US7168431B2 (en) 2002-04-12 2007-01-30 Philip Morris Usa Inc. Partially reduced nanoparticle additives to lower the amount of carbon monoxide and/or nitric oxide in the mainstream smoke of a cigarette
US20040007241A1 (en) * 2002-04-12 2004-01-15 Ping Li Partially reduced nanoparticle additives to lower the amount of carbon monoxide and/or nitric oxide in the mainstream smoke of a cigarette
US20040040566A1 (en) * 2002-08-30 2004-03-04 Ping Li Manganese oxide mixtures in nanoparticle form to lower the amount of carbon monoxide and/or nitric oxide in the mainstream smoke of a cigarette
US6782892B2 (en) 2002-08-30 2004-08-31 Philip Morris Usa Inc. Manganese oxide mixtures in nanoparticle form to lower the amount of carbon monoxide and/or nitric oxide in the mainstream smoke of a cigarette
US20050051185A1 (en) * 2003-06-13 2005-03-10 Firooz Rasouli Cigarette wrapper with catalytic filler and methods of making same
US20050022833A1 (en) * 2003-06-13 2005-02-03 Shalva Gedevanishvili Shredded paper with catalytic filler in tobacco cut filler and methods of making same
US9107452B2 (en) 2003-06-13 2015-08-18 Philip Morris Usa Inc. Catalyst to reduce carbon monoxide in the mainstream smoke of a cigarette
WO2004110189A2 (en) 2003-06-13 2004-12-23 Philip Morris Products S.A. Cigarette wrapper with catalytic filler and methods of making same
US9119421B2 (en) 2003-06-13 2015-09-01 Philip Morris Usa Inc. Cigarette wrapper with printed catalyst
US7243658B2 (en) 2003-06-13 2007-07-17 Philip Morris Usa Inc. Nanoscale composite catalyst to reduce carbon monoxide in the mainstream smoke of a cigarette
US20040250826A1 (en) * 2003-06-13 2004-12-16 Ping Li Catalyst to reduce carbon monoxide and nitric oxide from the mainstream smoke of a cigarette
US20040250827A1 (en) * 2003-06-13 2004-12-16 Sarojini Deevi Catalyst to reduce carbon monoxide in the mainstream smoke of a cigarette
US20070095358A1 (en) * 2003-06-13 2007-05-03 Ping Li Cigarette wrapper with printed catalyst
US20040250825A1 (en) * 2003-06-13 2004-12-16 Sarojini Deevi Nanoscale composite catalyst to reduce carbon monoxide in the mainstream smoke of a cigarette
US7165553B2 (en) 2003-06-13 2007-01-23 Philip Morris Usa Inc. Nanoscale catalyst particles/aluminosilicate to reduce carbon monoxide in the mainstream smoke of a cigarette
US7152609B2 (en) 2003-06-13 2006-12-26 Philip Morris Usa Inc. Catalyst to reduce carbon monoxide and nitric oxide from the mainstream smoke of a cigarette
US20040250828A1 (en) * 2003-06-13 2004-12-16 Zhaohua Luan Nanoscale catalyst particles/aluminosilicate to reduce carbon monoxide in the mainstream smoke of a cigarette
US7568485B2 (en) 2003-08-22 2009-08-04 Philip Morris Usa Inc. System for dispersing powder materials in a cigarette rod
US20050039765A1 (en) * 2003-08-22 2005-02-24 Philip Morris Usa, Inc. Method for dispersing powder materials in a cigarette rod
US7028694B2 (en) 2003-08-22 2006-04-18 Philip Morris Usa Inc. Method for dispersing powder materials in a cigarette rod
US20060124142A1 (en) * 2003-08-22 2006-06-15 Philip Morris Usa Inc. Method for dispersing powder materials in a cigarette rod
US20090071489A9 (en) * 2003-10-27 2009-03-19 Philip Morris Usa Inc. In situ synthesis of composite nanoscale particles
US20060174903A9 (en) * 2003-10-27 2006-08-10 Philip Morris Usa Inc. Cigarettes and cigarette components containing nanostructured fibril materials
US20060032510A1 (en) * 2003-10-27 2006-02-16 Philip Morris Usa Inc. In situ synthesis of composite nanoscale particles
US20050263164A1 (en) * 2003-10-27 2005-12-01 Philip Morris Usa Inc. Methods for forming transition metal oxide clusters and smoking articles comprising transition metal oxide clusters
US20050263162A1 (en) * 2003-10-27 2005-12-01 Philip Morris Usa Inc. Preparation of mixed metal oxide catalysts from nanoscale particles
US20050263163A1 (en) * 2003-10-27 2005-12-01 Philip Morris Usa Inc. Formation and deposition of sputtered nanoscale particles in cigarette manufacture
US20050211259A1 (en) * 2003-10-27 2005-09-29 Philip Morris Usa Inc. Cigarette wrapper with nanoparticle spinel ferrite catalyst and methods of making same
US20050166934A1 (en) * 2003-10-27 2005-08-04 Philip Morris Usa Inc. In situ synthesis of composite nanoscale particles
US20050166935A1 (en) * 2003-10-27 2005-08-04 Philip Morris Usa Inc. Reduction of carbon monoxide in smoking articles using transition metal oxide clusters
US20050126583A1 (en) * 2003-10-27 2005-06-16 Philip Morris Usa Inc. Tobacco cut filler including metal oxide supported particles
US7509961B2 (en) 2003-10-27 2009-03-31 Philip Morris Usa Inc. Cigarettes and cigarette components containing nanostructured fibril materials
US20090139534A1 (en) * 2003-10-27 2009-06-04 Phillip Morris Usa Inc. Cigarettes and cigarette components containing nanostructured fibril materials
US20050121047A1 (en) * 2003-10-27 2005-06-09 Philip Morris Usa Inc. Cigarettes and cigarette components containing nanostructured fibril materials
US7640936B2 (en) 2003-10-27 2010-01-05 Philip Morris Usa Inc. Preparation of mixed metal oxide catalysts from nanoscale particles
US7677254B2 (en) 2003-10-27 2010-03-16 Philip Morris Usa Inc. Reduction of carbon monoxide and nitric oxide in smoking articles using iron oxynitride
US20100071710A1 (en) * 2003-10-27 2010-03-25 Philip Morris Usa Inc. Preparation of mixed metal oxide catalysts from nanoscale particles
US7712471B2 (en) 2003-10-27 2010-05-11 Philip Morris Usa Inc. Methods for forming transition metal oxide clusters and smoking articles comprising transition metal oxide clusters
US20100132725A1 (en) * 2003-10-27 2010-06-03 Reddy Budda V Reduction of carbon monoxide and nitric oxide in smoking articles using nanoscale particles and/or clusters of nitrided transition metal oxides
US20050109356A1 (en) * 2003-10-27 2005-05-26 Philip Morris Usa Inc. Reduction of carbon monoxide and nitric oxide in smoking articles using nanoscale particles and/or clusters of nitrided transition metal oxides
US7934510B2 (en) 2003-10-27 2011-05-03 Philip Morris Usa Inc. Cigarette wrapper with nanoparticle spinel ferrite catalyst and methods of making same
US8701681B2 (en) 2003-10-27 2014-04-22 Philip Morris Usa Inc. Use of oxyhydroxide compounds in cigarette paper for reducing carbon monoxide in the mainstream smoke of a cigarette
US7950400B2 (en) 2003-10-27 2011-05-31 Philip Morris Usa Inc. Tobacco cut filler including metal oxide supported particles
US7997281B2 (en) 2003-10-27 2011-08-16 Philip Morris Usa Inc. Reduction of carbon monoxide and nitric oxide in smoking articles using nanoscale particles and/or clusters of nitrided transition metal oxides
US20110197902A1 (en) * 2003-10-27 2011-08-18 Shahryar Rabiei Tobacco cut filler including metal oxide supported particles
US8006703B2 (en) 2003-10-27 2011-08-30 Philip Morris Usa Inc. In situ synthesis of composite nanoscale particles
US8011374B2 (en) 2003-10-27 2011-09-06 Philip Morris Usa, Inc. Preparation of mixed metal oxide catalysts from nanoscale particles
US8051859B2 (en) 2003-10-27 2011-11-08 Philip Morris Usa Inc. Formation and deposition of sputtered nanoscale particles in cigarette manufacture
US8281793B2 (en) 2003-10-27 2012-10-09 Philip Morris Usa Inc. Formation and deposition of sputtered nanoscale particles in cigarette manufacture
US8434495B2 (en) 2003-10-27 2013-05-07 Philip Morris Usa Inc. Tobacco cut filler including metal oxide supported particles
US8496012B2 (en) 2003-10-27 2013-07-30 Philip Morris Usa Inc. In situ synthesis of composite nanoscale particles
US9351520B2 (en) 2003-10-27 2016-05-31 Philip Morris Usa Inc. Cigarettes and cigarette components containing nanostructured fibril materials
US20110120480A1 (en) * 2005-02-04 2011-05-26 Philip Morris Usa Inc. Tobacco powder supported catalyst particles
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US20060196517A1 (en) * 2005-02-04 2006-09-07 Philip Morris Usa Inc. Tobacco powder supported catalyst particles
US8631803B2 (en) 2005-02-04 2014-01-21 Philip Morris Usa Inc. Tobacco powder supported catalyst particles

Also Published As

Publication number Publication date Type
FI51140C (en) 1976-11-10 grant
BE784272A (en) 1972-10-02 grant
DE2227832A1 (en) 1973-01-11 application
BE784272A1 (en) grant
DK128223B (en) 1974-03-25 grant
NL7207809A (en) 1972-12-13 application
FI51140B (en) 1976-08-02 application

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