US3608560A - Smokable product of oxidized cellulosic material - Google Patents

Smokable product of oxidized cellulosic material Download PDF

Info

Publication number
US3608560A
US3608560A US3608560DA US3608560A US 3608560 A US3608560 A US 3608560A US 3608560D A US3608560D A US 3608560DA US 3608560 A US3608560 A US 3608560A
Authority
US
United States
Prior art keywords
product
cellulosic material
carbon
oxycellulose
oxidized
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.)
Expired - Lifetime
Application number
Inventor
Theodore S Briskin
Geoffrey R Ward
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gallaher Ltd
Sutton Research Corp
Original Assignee
Sutton Research Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sutton Research Corp filed Critical Sutton Research Corp
Priority to US77418768A priority Critical
Application granted granted Critical
Publication of US3608560A publication Critical patent/US3608560A/en
Assigned to GALLAHER LIMITED reassignment GALLAHER LIMITED ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: HERGALL (1981) LIMITED
Assigned to GALLAHER LIMITED reassignment GALLAHER LIMITED CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). EFFECTIVE JAN. 2, 1981 Assignors: WATLING FIFTY-ONE LIMITED
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

Links

Classifications

    • 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
    • A24B15/16Chemical features of tobacco products or tobacco substitutes of tobacco substitutes
    • A24B15/165Chemical features of tobacco products or tobacco substitutes of tobacco substitutes comprising as heat source a carbon fuel or an oxidized or thermally degraded carbonaceous fuel, e.g. carbohydrates, cellulosic material

Abstract

A smokable product of oxidized cellulosic material formulated to include combustible carbon in an amount within the range of 2-50 percent by weight of the oxidized cellulosic material for the improvement in the smoking characteristics of the smoking product forward thereof. The combustible carbon particles are of approximate colloidal dimensions and increase the heat of combustion of the oxycellulose. Melting of the oxycellulose is minimized with the carbon additive. Further, the carbon particles may carry a volatile additive absorbent thereon and function as a filtration means downstream from the combustion area. The carbon particles may be secured to the oxycellulose by means of a soluble carbohydrate binder.

Description

nited States Patent Inventors Theodore S. Briskln;

Geofirey R. Ward, both of Beverly Hills, Calif.

Nov. 7, 1968 Sept. 28, 1971 Sutton Research Corporatlon Los Angeles, Calif.

Continuation-impart of application Ser. No. 595,622, Nov. 21, 1966, Pat. No. 3,447,539, Continuation-impart of appllcation Ser. No. 674,994, Oct. 12, 1967, now abandoned.

Appl. No. Filed Patented Assignee SMOKABLE PRODUCT 0F OXllDlZED CELLULOSlC MATERIAL 5 Claims, No Drawings 11.5. C1 1131/2, 131/17,131/140 Int. Cl. A241) 15/00,

- A24d 01/18 Field ofSearch 131/2,15, 17, 140-144; 260/212 References Cited UNITED STATES PATENTS 2,536,285 1/1951 Heckel et a1 8/116 Primary Examiner-Melvin D. Rein Attorney-McDougall, Hersh, Scott& Ladd ABSTRACT: A smokable product of oxidized cellulosic material formulated to include combustible carbon in an amount within the range of 2-50 percent by weight of the oxidized cellulosic material for the improvement in the smoking characteristics of the smoking product forward thereof. The combustible carbon particles are of approximate colloidal dimensions and increase the heat of combustion of the oxycellulose. Melting of the oxycellulose is minimized with the carbon additive. Further, the carbon particles may carry a volatile additive absorbent thereon and function as a filtration means downstream from the combustion area. The carbon particles may be secured to the oxycellulose by means of a soluble carbohydrate binder.

SMOIKABLE PRODUCT F OXIDllZED CELLULOSllC MATERIAL This is a continuation-in-part of our copending applications U.S. Pat. Ser. No. 595,622, filed Nov. 21, 1966, now U.S. Pat. No. 3,447.539 and entitled Smoking Products, and US, Pat. Ser. No. 674,994, now abandoned, filed Oct. 12, 1967, and entitled Smoking Products and Process for Making Such Products.

This invention relates to a smokable product produced of oxidized cellulosic materials and to smoking products produced thereof.

As used herein, the term smokable products is meant to refer to and include filler material for use in cigarettes, cigars, pipe tobacco and the like, cigarette papers, wrappers and the like used in the preparation of cigars and cigarettes.

in the aforementioned copending applications, description is made of the preparation of a smokable product suitable for use in cigars and cigarettes and pipes wherein the smokable product is prepared of relatively pure cellulosic materials subjected to selective oxidization with liquid nitrogen dioxide to convert preferably more than 90 percent of the methylol groups in the cellulosic molecule to yield a product which can be referred to as oxycellulose. The oxidation reaction produced is further processed by removal of nitrogen oxides by vaporization and washing and by extraction with an organic solvent to remove undesirable impurities, such as oils, waxes, latexes, and aromatics which have been released as a consequence of the treatment with nitrogen dioxide.

As further described in the aforementioned copending applications, the oxidized and cleansed oxycellulose is further processed by a reduction reaction with borohydride of an alkali or alkaline earth metal, such as sodium borohydride, for reduction of nitro compounds, quinones, ketones and aldehydes which otherwise might have a tendency to impart undesirable aroma and taste to the smoking product when burned, or to reduce stability thereof during storage.

The product, before or after reduction, can be subjected to additional oxidation with a dilute solution of peroxide to eliminate further groupings that contribute undesirable aroma or taste to the product. The need for such treatments naturally varies with the initial purity of the oxycellulose.

The refined oxycellulose is then formulated with mineralizing agents, such as oxalates, glycolates, diglycolates, lactates, pivatates or tannates of the alkaline earth metals, preferably in a manner to form such salts internally of the oxycellulose fibrils. As described, internal formation can be achieved by first forming the alkaline earth metal salt of the oxycellulose and then treating with a solution of the anion to precipitate the mineralizing salt in situ in the cellulosic material.

The treated oxycellulose can be further formulated to improve burning, glow and smoking characteristics by the use of potassium, rubidium or cesium salts, such as the oxalates as described in the aforementioned copending applications and in the copending application U.S. Pat. Ser. No. 623,528, filed Mar. 16, 1967, and entitled Smoking Products and Process for their Manufacture.

Smoke generators for improving the appearance of the smoke from the product can be introduced, as by the use of fatty acids and the like, and suitable aroma can be achieved by the addition of volatilizable alkalizing material, such as ammonium oxalate, urea and the like.

It has been found that oxidized cellulosic material does not burn as vigorously as tobacco with the result that the smoka ble product often times experiences difficulty in maintaining full combustion. Such less vigorous burning may also tend to lend to thermal decomposition instead of combustion of the carbonaceous components with corresponding increase in tars and the like materials sought to be eliminated by the smokable product of this invention.

There is reason to believe that the deviation in combustion is attributable, at least in part, to the lower heat of combustion of oxidized cellulosic materials, as compared to cellulose or tobacco. The heat of combustion of cellulose is calculated to be about 4.2 kilocalories per gram, whereas the heat of combustion of fully oxidized cellulose is calculated to be about 3.2 kilocalories per gram.

Attempts have been made to increase the heat of combustion of the smoking product by decrease in the proportion of oxidized cellulosic material employed but the result has been the generation of undesirable oxygenated short chain materials which contribute undesirable odor and irritating taste during combustion.

Thus, it is an object of this invention to produce and to provide a method for producing a smokable product of oxidized cellulosic material which enjoy desirable vigorous burning characteristics during combustion whereby the smokable product is capable of the desired rate of combustion without generation of undesirable taste and odors, and it is a related object to produce and to provide a method for producing a smokable product of the type described which has improved characteristics for use as a smoking product from the standpoint of taste, odor and appearance as well as reduction in the amount of undesirable compounds released with the fumes and smoke inhaled from the smoking product.

We have found that the burning characteristics of the oxidized cellulosic material can be markedly improved and that the use of the oxidized cellulosic material, as a smokable product, is also improved by the formulation to include a substantial amount of combustible carbon in uniform distribution with the oxidized cellulosic material and preferably bonded thereto in the form of fine particles or powders of almost colloidal dimension. Benefits are derived when the carbon is present in the smokable product in an amount as little as 2 percent by weight of the oxidized cellulose up to an amount as great as 50 percent by weight of the oxidized cellulosic material. When an amount less than 2 percent by weight is employed, the carbon has negligible effect and when the carbon content exceeds the upper limit of 50 percent by weight of the oxidized cellulosic material, the carbon has deleterious effect in that it tends to muffle the combustion of the oxidized cellulose, with corresponding generation of the undesirable odor and taste. In the preferred practice of this invention, combustible carbon is employed in an amount within the range of 15-40 percent by weight of the oxidized cellulosic material.

As the combustible carbon, it is preferred to make use of various forms of activated carbon charcoal, burnt cork and the like, in finely divided or powder form or other forms of combustible carbon, preferably of the absorbent type, as used in the absorption of gases, liquids, vapors or fumes.

It will be recognized that such replacement of substantial amounts of oxidized cellulose with the carbon will operate proportionately to reduce the concentration of oxidized cellulosic material making up the smokable product, with corresponding reduction in volatile organics, such as aldehydes, acids, phenols, polycyclies and tars often generated during combustion of the oxidized cellulosic material. This, of course, constitutes a benefit derived from the presence of carbon over and above its beneficial effect on combustion or burning rate of the smokable product.

The presence of carbon in the smoking product presents a number of other beneficial effects, some of which were wholly unexpected. For example, carbon present within the amounts described contribute color to the smokable product thereby to increase its aesthetic value as well as ability to blend the smokable material with tobacco to provide a mixture characterized by reduced volatilizable byproducts from tobacco.

Most significant is the fact that the carbon particles are capable of functioning as absorbents to enable pretreatment with liquids desired to be formulated into the smoking product and to achieve uniform distribution of such liquids with the treated carbon particles. The latter operate to retain such liquids in the desired distribution in the smoking product for their most beneficial use. Thus, the carbon particles serve as a means for uniformly distributing small amounts of liquid ingredients and for retaining such liquids in unifonn distribution throughout the smokable product.

Still more significant and somewhat surprising is the ability of the carbon particles, uniformly distributed throughout the smoking product, to extract volatile organic components from the smoke and fumes and to withhold such absorbed materials while even in the hot zone generated during combustion of the smoking product. Thus, extra pyrolysis is required with more complete combustion of the absorbed volatiles with the result that less of the organic volatiles are released during combustion of the smoking product. While in the nonburning portion of the smoking product, the carbon particles function as a filter which removes and holds volatile vapors and fumes otherwise inhaled.

Another surprising result of the presence of carbon is that it helps to stop the undesirable tendency of oxycellulose to melt and coalesce during its pyrolysis and then produce bad odors. In this respect, carbon acts like calcium oxalate and, to some extent, substitutes for inorganic minerals. This allows a less coherent ash to be formulated.

The carbon particles may be formulated into the cellulose system in various ways. If the carbon particles are pasted with oxidized cellulose fibers, much of the carbon will absorb or adhere, depending upon the amount of swelling and stickiness of the fibers, which depends further upon the temperature and pH of the paste. instead, the cellulosic fibers may be impregnated with an aqueous dispersion of the carbon particles containing a binder component, such as a small amount of soluble polyuronic acid obtained by boiling oxidized cellulose in water, pectin, demethylated pectin, and the like carbohydrate binder materials.

Having described the basic concepts of this invention, illustration will now be made of the practice of the invention by reference to the following example, which is given by way of illustration and not by way of limitation.

EXAMPLE I A low ash, low lignin, high purity paper is oxidized by immersion in liquid NO at 20 C. for 5 or 6 days until caustic soda titrations show that the carboxyl content has reached an asymptotic level, which can be taken as indicating close to 100 percent conversion of the methylol groups. The paper is then removed and the N0 volatilized off by drying. The paper is then rinsed and treated with a 1 percent suspension of calcium carbonate, containing an amount of calcium sufficient when absorbed in the oxidized cellulose to give an ash level of percent to the dried product. The absorption of the calcium becomes substantially complete in -30 minutes and the material is then removed, rinsed and immersed in a 1 percent solution of oxalic acid of sufficient volume to form the oxalate of the calcium in the oxidized cellulose. After 2030 minutes, the material is removed, rinsed to remove excess acids, and passed through a wringer to remove free water. While the fibers are still swollen, the material is pasted with an aqueous slurry containing 50 percent of finely powdered activated charcoal. By using a quantity of charcoal about half that of the dry fibers, a mixture of about 35 percent charcoal 65 percent oxidized cellulose can be prepared. The slurry is formulated to contain 1 percent by weight low methoxyl pectin for adhesion and the moist pasted fibers are then dried in a stream of warm air at 50 C. To obtain a good rate of burning, 1 percent of rubidium or cesium oxalate is incorporated in the oxidized cellulose and carbon mixture. Approximately 0.5 percent of ammonium oxalate is also added, to give an alkaline smoke such that moist pH paper held in the smoke indicates a pH of 8 to 9.

By way of modification, the mineralizing or ashing ingredient in the form of calcium oxalate, can be incorporated into the eellulosic material before oxidation with liquid nitrogen dioxide. In such event, the steps of treating the oxidized cellulose with calcium carbonate and oxalic acid can be dispensed with in the above example. It is desirable to make use of such mineralizing agents as calcium, magnesium, or the like alkaline earth metal oxalates in an amount within the range of 5-40 percent by weight of the smokable product or in an amount to give 5 25 percent ash in the smoked product.

Instead oflignm, in example I, use can be made of other cellulosic materials, such as purified cellulose pulp or paper, alpha-cellulose, wood pulp, flax, hemp, straw and cellulose components derived from plants, leaves, weeds and the like.

Oxidized cellulose, formulated in the manner described, and which include suitable ash, burning accelerators and smoke modifiers, can be used alone as a smoking product, or it can be used as a diluent with tobacco for the manufacture of cigarettes with reduced tars and improved smoking characteristics.

It will be understood that changes may be made in the details of formulation and operation, without departing from the spirit of the invention, especially as defined in the following claims.

We claim:

1. A substitute smoking product adapted to be employed as combustible filler either alone or in combination with tobacco, said product being a mixture consisting essentially of an oxidized cellulose material and an incorporation of fine, absorbent combustible carbon particles approximating colloidal dimensions, said combustible carbon particles being within the range of 2-50 percent by weight of the oxidized cellulose, said combustible carbon particles functioning during combustion of the mixture in smoking to increase the heat of combustion of the oxycellulose and preclude the melting thereof, act as an absorbent for introducing a volatile additive and/or for smoke filtration downstream from the zone of combustion.

2. A substitute smokable product as claimed in claim 1 in which the combustible carbon is present in an amount with the range of 15-40 percent by weight of the oxidized cellulosic material.

3. A substitute smokable product as claimed in claim 1 in which the carbon particles are bonded to the oxidized cellulosic material with a soluble carbohydrate.

4. The substitute smoking product of claim 1 in which the oxidized cellulose is stabilized by removal of the excess nitrogen dioxide subsequent to the oxidation of the cellulose.

5. The substitute smoking product of claim 1 in which the carbon particles are adhered to the oxycellulose by coating a suspension of the said particles in a water soluble binder onto the oxycellulose and then drying same.

Claims (4)

  1. 2. A substitute smokable product as claimed in claim 1 in which the combustible carbon is present in an amount within the range of 15-40 percent by weight of the oxidized cellulosic material.
  2. 3. A substitute smokable product as claimed in claim 1 in which the carbon particles are bonded to the oxidized cellulosic material with a soluble carbohydrate.
  3. 4. The substitute smoking product of claim 1 in which the oxidized cellulose is stabilized by removal of the excess nitrogen dioxide subsequent to the oxidation of the cellulose.
  4. 5. The substitute smoking product of claim 1 in which the carbon particles are adhered to the oxycellulose by coating a suspension of the said particles in a water soluble binder onto the oxycellulose and then drying same.
US3608560D 1968-11-07 1968-11-07 Smokable product of oxidized cellulosic material Expired - Lifetime US3608560A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US77418768A true 1968-11-07 1968-11-07

Publications (1)

Publication Number Publication Date
US3608560A true US3608560A (en) 1971-09-28

Family

ID=25100490

Family Applications (1)

Application Number Title Priority Date Filing Date
US3608560D Expired - Lifetime US3608560A (en) 1968-11-07 1968-11-07 Smokable product of oxidized cellulosic material

Country Status (1)

Country Link
US (1) US3608560A (en)

Cited By (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3729009A (en) * 1971-03-22 1973-04-24 Kimberly Clark Co Smoking product with improved flavor and method of making it
US3805803A (en) * 1971-06-11 1974-04-23 Brown & Williamson Tobacco Reconstituted-tobacco smoking materials
US3818915A (en) * 1970-03-23 1974-06-25 Ici Ltd Tobacco substitute smoking material
US3885574A (en) * 1970-03-23 1975-05-27 Ici Ltd Smoking mixture
US3934594A (en) * 1972-03-02 1976-01-27 Tamag Basel Ag Process for the manufacture of tobacco substitute
US3943942A (en) * 1973-07-09 1976-03-16 Imperial Chemical Industries Limited Smoking mixtures
US3957060A (en) * 1971-11-23 1976-05-18 Brown & Williamson Tobacco Corporation Tobacco treatment
US3987801A (en) * 1973-07-24 1976-10-26 Tamag Basel Ag Smokeable product with meerschaum particles as absorbents
US3987800A (en) * 1973-07-24 1976-10-26 Tamag Basel Ag Smokable product with meerschaum particles
US3993082A (en) * 1973-09-10 1976-11-23 Olin Corporation Tobacco substitute
US4014348A (en) * 1974-07-05 1977-03-29 Imperial Chemical Industries Limited Smoking mixture
US4019520A (en) * 1974-11-25 1977-04-26 Brown & Williamson Tobacco Corporation Tobacco substitute containing boric oxide, boron oxyacids, and ammonium, alkali metal, or alkaline earth metal salts of boron oxyacids
US4505282A (en) * 1978-05-12 1985-03-19 American Brands, Inc. Innerliner wrap for smoking articles
US4793365A (en) * 1984-09-14 1988-12-27 R. J. Reynolds Tobacco Company Smoking article
US4893639A (en) * 1986-07-22 1990-01-16 R. J. Reynolds Tobacco Company Densified particulate materials for smoking products and process for preparing the same
US4920990A (en) * 1988-11-23 1990-05-01 R. J. Reynolds Tobacco Company Cigarette
US4942888A (en) * 1989-01-18 1990-07-24 R. J. Reynolds Tobacco Company Cigarette
US4966171A (en) * 1988-07-22 1990-10-30 Philip Morris Incorporated Smoking article
US4981522A (en) * 1988-07-22 1991-01-01 Philip Morris Incorporated Thermally releasable flavor source for smoking articles
US4991606A (en) * 1988-07-22 1991-02-12 Philip Morris Incorporated Smoking article
US5060676A (en) * 1982-12-16 1991-10-29 Philip Morris Incorporated Process for making a carbon heat source and smoking article including the heat source and a flavor generator
US5074321A (en) * 1989-09-29 1991-12-24 R. J. Reynolds Tobacco Company Cigarette
US5076297A (en) * 1986-03-14 1991-12-31 R. J. Reynolds Tobacco Company Method for preparing carbon fuel for smoking articles and product produced thereby
US5092353A (en) * 1989-01-18 1992-03-03 R. J. Reynolds Tobacco Company Cigarette
US5101839A (en) * 1990-08-15 1992-04-07 R. J. Reynolds Tobacco Company Cigarette and smokable filler material therefor
US5105836A (en) * 1989-09-29 1992-04-21 R. J. Reynolds Tobacco Company Cigarette and smokable filler material therefor
US5129408A (en) * 1990-08-15 1992-07-14 R. J. Reynolds Tobacco Company Cigarette and smokable filler material therefor
US5144967A (en) * 1990-10-22 1992-09-08 Kimberly-Clark Corporation Flavor release material
US5284166A (en) * 1992-10-07 1994-02-08 Kimberly-Clark Corporation Method of producing brown cigarette wrapper paper
WO1994006313A1 (en) * 1992-09-11 1994-03-31 Philip Morris Products Inc. Tobacco flavor unit for electrical smoking articles
US5345951A (en) * 1988-07-22 1994-09-13 Philip Morris Incorporated Smoking article
US5388594A (en) * 1991-03-11 1995-02-14 Philip Morris Incorporated Electrical smoking system for delivering flavors and method for making same
US5396911A (en) * 1990-08-15 1995-03-14 R. J. Reynolds Tobacco Company Substrate material for smoking articles
US5415186A (en) * 1990-08-15 1995-05-16 R. J. Reynolds Tobacco Company Substrates material for smoking articles
US5443560A (en) * 1989-11-29 1995-08-22 Philip Morris Incorporated Chemical heat source comprising metal nitride, metal oxide and carbon
US5505214A (en) * 1991-03-11 1996-04-09 Philip Morris Incorporated Electrical smoking article and method for making same
US5573692A (en) * 1991-03-11 1996-11-12 Philip Morris Incorporated Platinum heater for electrical smoking article having ohmic contact
US5649554A (en) * 1995-10-16 1997-07-22 Philip Morris Incorporated Electrical lighter with a rotatable tobacco supply
US5665262A (en) * 1991-03-11 1997-09-09 Philip Morris Incorporated Tubular heater for use in an electrical smoking article
US5666976A (en) * 1992-09-11 1997-09-16 Philip Morris Incorporated Cigarette and method of manufacturing cigarette for electrical smoking system
US5666978A (en) * 1992-09-11 1997-09-16 Philip Morris Incorporated Electrical smoking system for delivering flavors and method for making same
US5692525A (en) * 1992-09-11 1997-12-02 Philip Morris Incorporated Cigarette for electrical smoking system
US8402976B2 (en) 2008-04-17 2013-03-26 Philip Morris Usa Inc. Electrically heated smoking system
USD691766S1 (en) 2013-01-14 2013-10-15 Altria Client Services Inc. Mouthpiece of a smoking article
USD691765S1 (en) 2013-01-14 2013-10-15 Altria Client Services Inc. Electronic smoking article
USD695449S1 (en) 2013-01-14 2013-12-10 Altria Client Services Inc. Electronic smoking article
US8794231B2 (en) 2008-04-30 2014-08-05 Philip Morris Usa Inc. Electrically heated smoking system having a liquid storage portion
US8997753B2 (en) 2012-01-31 2015-04-07 Altria Client Services Inc. Electronic smoking article
US9084440B2 (en) 2009-11-27 2015-07-21 Philip Morris Usa Inc. Electrically heated smoking system with internal or external heater
US9289014B2 (en) 2012-02-22 2016-03-22 Altria Client Services Llc Electronic smoking article and improved heater element
US9420829B2 (en) 2009-10-27 2016-08-23 Philip Morris Usa Inc. Smoking system having a liquid storage portion
US9439454B2 (en) 2008-03-14 2016-09-13 Philip Morris Usa Inc. Electrically heated aerosol generating system and method
US9499332B2 (en) 2009-05-21 2016-11-22 Philip Morris Usa Inc. Electrically heated smoking system
USD834743S1 (en) 2013-10-14 2018-11-27 Altria Client Services Llc Smoking article
USD841231S1 (en) 2013-01-14 2019-02-19 Altria Client Services, Llc Electronic vaping device mouthpiece
USD849993S1 (en) 2013-01-14 2019-05-28 Altria Client Services Electronic smoking article

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7001A (en) * 1850-01-08 Thomas Hoyt Improvement in curing tobacco-stems
US2114281A (en) * 1936-05-15 1938-04-19 Raymond P Allen Tobacco and process of treating same
US2536285A (en) * 1946-07-25 1951-01-02 Champion Paper & Fibre Co Process of making high wet strength paper
US2809904A (en) * 1954-11-17 1957-10-15 Raymar Company Smoking product
US2915069A (en) * 1954-07-13 1959-12-01 Olin Mathieson Smoking device
US3007917A (en) * 1953-04-02 1961-11-07 Leon Simon Production of oxycellulose material
US3012915A (en) * 1957-11-21 1961-12-12 Minerals & Chem Philipp Corp Tobacco composition including comminuted solid material affixed thereto
US3106210A (en) * 1957-11-18 1963-10-08 Reynolds Metals Co Smoking tobacco
CA702918A (en) * 1965-02-02 V. Kirkland Earl Tobacco substitute
US3364200A (en) * 1960-03-28 1968-01-16 Johnson & Johnson Oxidized cellulose product and method for preparing the same

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7001A (en) * 1850-01-08 Thomas Hoyt Improvement in curing tobacco-stems
CA702918A (en) * 1965-02-02 V. Kirkland Earl Tobacco substitute
US2114281A (en) * 1936-05-15 1938-04-19 Raymond P Allen Tobacco and process of treating same
US2536285A (en) * 1946-07-25 1951-01-02 Champion Paper & Fibre Co Process of making high wet strength paper
US3007917A (en) * 1953-04-02 1961-11-07 Leon Simon Production of oxycellulose material
US2915069A (en) * 1954-07-13 1959-12-01 Olin Mathieson Smoking device
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
US3012915A (en) * 1957-11-21 1961-12-12 Minerals & Chem Philipp Corp Tobacco composition including comminuted solid material affixed thereto
US3364200A (en) * 1960-03-28 1968-01-16 Johnson & Johnson Oxidized cellulose product and method for preparing the same

Cited By (99)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3818915A (en) * 1970-03-23 1974-06-25 Ici Ltd Tobacco substitute smoking material
US3885574A (en) * 1970-03-23 1975-05-27 Ici Ltd Smoking mixture
US3729009A (en) * 1971-03-22 1973-04-24 Kimberly Clark Co Smoking product with improved flavor and method of making it
US3805803A (en) * 1971-06-11 1974-04-23 Brown & Williamson Tobacco Reconstituted-tobacco smoking materials
US3957060A (en) * 1971-11-23 1976-05-18 Brown & Williamson Tobacco Corporation Tobacco treatment
US3934594A (en) * 1972-03-02 1976-01-27 Tamag Basel Ag Process for the manufacture of tobacco substitute
US3943942A (en) * 1973-07-09 1976-03-16 Imperial Chemical Industries Limited Smoking mixtures
US3987801A (en) * 1973-07-24 1976-10-26 Tamag Basel Ag Smokeable product with meerschaum particles as absorbents
US3987800A (en) * 1973-07-24 1976-10-26 Tamag Basel Ag Smokable product with meerschaum particles
US3993082A (en) * 1973-09-10 1976-11-23 Olin Corporation Tobacco substitute
US4014348A (en) * 1974-07-05 1977-03-29 Imperial Chemical Industries Limited Smoking mixture
US4019520A (en) * 1974-11-25 1977-04-26 Brown & Williamson Tobacco Corporation Tobacco substitute containing boric oxide, boron oxyacids, and ammonium, alkali metal, or alkaline earth metal salts of boron oxyacids
US4505282A (en) * 1978-05-12 1985-03-19 American Brands, Inc. Innerliner wrap for smoking articles
US5060676A (en) * 1982-12-16 1991-10-29 Philip Morris Incorporated Process for making a carbon heat source and smoking article including the heat source and a flavor generator
US5076292A (en) * 1984-09-14 1991-12-31 R. J. Reynolds Tobacco Company Smoking article
US4793365A (en) * 1984-09-14 1988-12-27 R. J. Reynolds Tobacco Company Smoking article
US5076297A (en) * 1986-03-14 1991-12-31 R. J. Reynolds Tobacco Company Method for preparing carbon fuel for smoking articles and product produced thereby
US4893639A (en) * 1986-07-22 1990-01-16 R. J. Reynolds Tobacco Company Densified particulate materials for smoking products and process for preparing the same
US5345951A (en) * 1988-07-22 1994-09-13 Philip Morris Incorporated Smoking article
US4981522A (en) * 1988-07-22 1991-01-01 Philip Morris Incorporated Thermally releasable flavor source for smoking articles
US4991606A (en) * 1988-07-22 1991-02-12 Philip Morris Incorporated Smoking article
US4966171A (en) * 1988-07-22 1990-10-30 Philip Morris Incorporated Smoking article
US4920990A (en) * 1988-11-23 1990-05-01 R. J. Reynolds Tobacco Company Cigarette
US4942888A (en) * 1989-01-18 1990-07-24 R. J. Reynolds Tobacco Company Cigarette
US5092353A (en) * 1989-01-18 1992-03-03 R. J. Reynolds Tobacco Company Cigarette
US5105836A (en) * 1989-09-29 1992-04-21 R. J. Reynolds Tobacco Company Cigarette and smokable filler material therefor
US5074321A (en) * 1989-09-29 1991-12-24 R. J. Reynolds Tobacco Company Cigarette
US5443560A (en) * 1989-11-29 1995-08-22 Philip Morris Incorporated Chemical heat source comprising metal nitride, metal oxide and carbon
US5598868A (en) * 1990-08-15 1997-02-04 R. J. Reynolds Tobacco Company Cigarette and smokable filler material therefor material for use in smoking articles
US5415186A (en) * 1990-08-15 1995-05-16 R. J. Reynolds Tobacco Company Substrates material for smoking articles
US5101839A (en) * 1990-08-15 1992-04-07 R. J. Reynolds Tobacco Company Cigarette and smokable filler material therefor
US5396911A (en) * 1990-08-15 1995-03-14 R. J. Reynolds Tobacco Company Substrate material for smoking articles
US5129408A (en) * 1990-08-15 1992-07-14 R. J. Reynolds Tobacco Company Cigarette and smokable filler material therefor
US5144967A (en) * 1990-10-22 1992-09-08 Kimberly-Clark Corporation Flavor release material
US5730158A (en) * 1991-03-11 1998-03-24 Philip Morris Incorporated Heater element of an electrical smoking article and method for making same
US5708258A (en) * 1991-03-11 1998-01-13 Philip Morris Incorporated Electrical smoking system
US5665262A (en) * 1991-03-11 1997-09-09 Philip Morris Incorporated Tubular heater for use in an electrical smoking article
US5505214A (en) * 1991-03-11 1996-04-09 Philip Morris Incorporated Electrical smoking article and method for making same
US5573692A (en) * 1991-03-11 1996-11-12 Philip Morris Incorporated Platinum heater for electrical smoking article having ohmic contact
US5388594A (en) * 1991-03-11 1995-02-14 Philip Morris Incorporated Electrical smoking system for delivering flavors and method for making same
US5613504A (en) * 1991-03-11 1997-03-25 Philip Morris Incorporated Flavor generating article and method for making same
US5865185A (en) * 1991-03-11 1999-02-02 Philip Morris Incorporated Flavor generating article
US5750964A (en) * 1991-03-11 1998-05-12 Philip Morris Incorporated Electrical heater of an electrical smoking system
US5666976A (en) * 1992-09-11 1997-09-16 Philip Morris Incorporated Cigarette and method of manufacturing cigarette for electrical smoking system
US5666978A (en) * 1992-09-11 1997-09-16 Philip Morris Incorporated Electrical smoking system for delivering flavors and method for making same
US5692291A (en) * 1992-09-11 1997-12-02 Philip Morris Incorporated Method of manufacturing an electrical heater
US5692525A (en) * 1992-09-11 1997-12-02 Philip Morris Incorporated Cigarette for electrical smoking system
US6026820A (en) * 1992-09-11 2000-02-22 Philip Morris Incorporated Cigarette for electrical smoking system
US5369723A (en) * 1992-09-11 1994-11-29 Philip Morris Incorporated Tobacco flavor unit for electrical smoking article comprising fibrous mat
WO1994006313A1 (en) * 1992-09-11 1994-03-31 Philip Morris Products Inc. Tobacco flavor unit for electrical smoking articles
US5816263A (en) * 1992-09-11 1998-10-06 Counts; Mary Ellen Cigarette for electrical smoking system
US5915387A (en) * 1992-09-11 1999-06-29 Philip Morris Incorporated Cigarette for electrical smoking system
US5284166A (en) * 1992-10-07 1994-02-08 Kimberly-Clark Corporation Method of producing brown cigarette wrapper paper
US5649554A (en) * 1995-10-16 1997-07-22 Philip Morris Incorporated Electrical lighter with a rotatable tobacco supply
US9439454B2 (en) 2008-03-14 2016-09-13 Philip Morris Usa Inc. Electrically heated aerosol generating system and method
US10398170B2 (en) 2008-03-14 2019-09-03 Philip Morris Usa Inc. Electrically heated aerosol generating system and method
US9848655B2 (en) 2008-03-14 2017-12-26 Philip Morris Usa Inc. Electrically heated aerosol generating system and method
US8851081B2 (en) 2008-04-17 2014-10-07 Philip Morris Usa Inc. Electrically heated smoking system
US8402976B2 (en) 2008-04-17 2013-03-26 Philip Morris Usa Inc. Electrically heated smoking system
US8794231B2 (en) 2008-04-30 2014-08-05 Philip Morris Usa Inc. Electrically heated smoking system having a liquid storage portion
US10368584B2 (en) 2009-05-21 2019-08-06 Philip Morris Usa Inc. Electrically heated smoking system
US10390564B2 (en) 2009-05-21 2019-08-27 Philip Morris Usa Inc. Electrically heated smoking system
US9775380B2 (en) 2009-05-21 2017-10-03 Philip Morris Usa Inc. Electrically heated smoking system
US9499332B2 (en) 2009-05-21 2016-11-22 Philip Morris Usa Inc. Electrically heated smoking system
US9420829B2 (en) 2009-10-27 2016-08-23 Philip Morris Usa Inc. Smoking system having a liquid storage portion
US9084440B2 (en) 2009-11-27 2015-07-21 Philip Morris Usa Inc. Electrically heated smoking system with internal or external heater
US9668523B2 (en) 2012-01-31 2017-06-06 Altria Client Services Llc Electronic cigarette
US10405583B2 (en) 2012-01-31 2019-09-10 Altria Client Services Llc Electronic cigarette
US10123566B2 (en) 2012-01-31 2018-11-13 Altria Client Services Llc Electronic cigarette
US10098386B2 (en) 2012-01-31 2018-10-16 Altria Client Services Llc Electronic cigarette
US9282772B2 (en) 2012-01-31 2016-03-15 Altria Client Services Llc Electronic vaping device
US10092037B2 (en) 2012-01-31 2018-10-09 Altria Client Services Llc Electronic cigarette
US9326547B2 (en) 2012-01-31 2016-05-03 Altria Client Services Llc Electronic vaping article
US9004073B2 (en) 2012-01-31 2015-04-14 Altria Client Services Inc. Electronic cigarette
US8997753B2 (en) 2012-01-31 2015-04-07 Altria Client Services Inc. Electronic smoking article
US9456635B2 (en) 2012-01-31 2016-10-04 Altria Client Services Llc Electronic cigarette
US9474306B2 (en) 2012-01-31 2016-10-25 Altria Client Services Llc Electronic cigarette
US9848656B2 (en) 2012-01-31 2017-12-26 Altria Client Services Llc Electronic cigarette
US8997754B2 (en) 2012-01-31 2015-04-07 Altria Client Services Inc. Electronic cigarette
US9510623B2 (en) 2012-01-31 2016-12-06 Altria Client Services Llc Electronic cigarette
US9854839B2 (en) 2012-01-31 2018-01-02 Altria Client Services Llc Electronic vaping device and method
US9877516B2 (en) 2012-02-22 2018-01-30 Altria Client Services, Llc Electronic smoking article and improved heater element
US10383371B2 (en) 2012-02-22 2019-08-20 Altria Client Services Llc Electronic smoking article and improved heater element
US9289014B2 (en) 2012-02-22 2016-03-22 Altria Client Services Llc Electronic smoking article and improved heater element
USD738566S1 (en) 2013-01-14 2015-09-08 Altria Client Services Llc Electronic smoking article
USD841231S1 (en) 2013-01-14 2019-02-19 Altria Client Services, Llc Electronic vaping device mouthpiece
USD722196S1 (en) 2013-01-14 2015-02-03 Altria Client Services Inc. Electronic smoking article
USD738036S1 (en) 2013-01-14 2015-09-01 Altria Client Services Inc. Electronic smoking article
USD748323S1 (en) 2013-01-14 2016-01-26 Altria Client Services Llc Electronic smoking article
USD743097S1 (en) 2013-01-14 2015-11-10 Altria Client Services Llc Electronic smoking article
USD821028S1 (en) 2013-01-14 2018-06-19 Altria Client Services Llc Smoking article
USD738567S1 (en) 2013-01-14 2015-09-08 Altria Client Services Llc Electronic smoking article
USD844221S1 (en) 2013-01-14 2019-03-26 Altria Client Services Llc Electronic smoking article
USD849993S1 (en) 2013-01-14 2019-05-28 Altria Client Services Electronic smoking article
USD695449S1 (en) 2013-01-14 2013-12-10 Altria Client Services Inc. Electronic smoking article
USD770086S1 (en) 2013-01-14 2016-10-25 Altria Client Services Llc Electronic smoking article
USD691765S1 (en) 2013-01-14 2013-10-15 Altria Client Services Inc. Electronic smoking article
USD691766S1 (en) 2013-01-14 2013-10-15 Altria Client Services Inc. Mouthpiece of a smoking article
USD834743S1 (en) 2013-10-14 2018-11-27 Altria Client Services Llc Smoking article

Similar Documents

Publication Publication Date Title
US3422819A (en) Cigarettes and paper therefor
US3529602A (en) Tobacco substitute sheet material
US3255760A (en) Tobacco product which produces less tars
US3368567A (en) Method of producing a tablet containing a tobacco concentrate
US3106210A (en) Smoking tobacco
EP0956783B1 (en) Smoking articles
US4481958A (en) Combustible carbon filter and smoking product
US5339838A (en) Method for providing a reconstituted tobacco material
EP0292949B1 (en) Filter for tobacco smoking
AU609678B2 (en) Smoking article with improved wrapper
US5105836A (en) Cigarette and smokable filler material therefor
US3545448A (en) Process for making a modified carbohydrate material for smoking mixtures and the material made thereby
US5129408A (en) Cigarette and smokable filler material therefor
US5715844A (en) Tobacco reconstitution process
US4433697A (en) Wrapper for smoking articles and method
US2592554A (en) Resilient tobacco product and method of making the same
FI104459B (en) Smoking article and the smoking element
RU2097996C1 (en) Aerosol-forming substrate for smoking articles (versions) and cigarette
US5148821A (en) Processes for producing a smokable and/or combustible tobacco material
JP2761533B2 (en) Improved rebuilt tobacco products
US4715390A (en) Matrix entrapment of flavorings for smoking articles
US1972718A (en) Treatment of tobacco
US5845649A (en) Flavor-tasting article
DE60122883T2 (en) Smoking filling material containing a fruit product
US4286604A (en) Smoking materials

Legal Events

Date Code Title Description
AS Assignment

Owner name: GALLAHER LIMITED

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:HERGALL (1981) LIMITED;REEL/FRAME:003858/0222

Effective date: 19810306

Owner name: GALLAHER LIMITED

Free format text: CHANGE OF NAME;ASSIGNOR:WATLING FIFTY-ONE LIMITED;REEL/FRAME:003858/0227

Effective date: 19810220

Owner name: GALLAHER LIMITED, STATELESS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:HERGALL (1981) LIMITED;REEL/FRAME:003858/0222

Owner name: GALLAHER LIMITED, STATELESS