British American Tobacco (investments) Limited

British-american Tobacco Company Limited

David John Dittrich

Kevin Gerard McAdam

Joseph Peter Sutton

Paul David Case

Colin Campbell Greig

Rosemary Elizabeth O'Reilly

John Lawson Beven

Steven Coburn

Richard Geoffrey Hook

Richard Thomas Fiebelkorn

Dominic Woodcock

Edward Dennis John

James Neil Figlar

Robert Whiffen

Ian C Brown

Frederick J Dashley

Martin Coleman

The present invention relates to a cellulosic material having one or more smoke diluents within its cellular structure and, optionally, one or more smoke diluents on its surface.

Cellulosic material

The invention relates to a smoking article incorporating a smoking material comprising three main components, namely a non-combustible inorganic filler, an alginic binder and aerosol generating means. The smoking material is combined with tobacco material, which may be treated with additional humectant, to provide a smoking article that has an aerosol transfer efficiency ratio of greater than 4.0.

Smoking articles and smokable filler materials therefor

This invention relates to a smoking article having a controllable static burn rate by virtue of the particle size of a component of the smoking material thereof. The smoking material comprises a non-combustible inorganic filler, a binder, aerosol generating means, the non-combustible filler comprising a proportion of material having a mean particle size in the range of 500 &#x3bc;m to 20 &#x3bc;m.

A method of packaging smoking articles, such as cigarettes, includes applying a volatile flavourant to the surface of a pack or an insert for the pack immediately prior to the pack being assembled about a smoking article bundle. The volatile flavourant can migrate within the fully assembled pack from the surface to which it was applied to the smoking articles.

Packaging smoking articles

The invention relates to a smoking article ( ) having a high proportion of non-combustible, inorganic material and a relatively low level of visible sidestream. The smoking article includes a substantially non-combustible, wrapper ( ) which extends along the full length of the smoking material rod and enwraps a combustible fuel source ( ) and aerosol generator ( ), both of which extend substantially along the length of the smoking material rod. Various suitable fuel source systems and aerosol generating systems are described. The article has a visible burn line which advances along the article and produces an ash which can be removed by the smoker in the normal way.

Smoking article with non-combustible wrapper, combustible fuel source and aerosol generator

A cigarette is provided with a filter comprising a filter element of water-disintegratable paper. The paper is water swellable and/or the filter element comprises a water swellable agent. Tipping which interattaches the filter to the tobacco rod of the cigarette is anchored by means of water susceptible adhesive. Thus when the cigarette comes into contact with sufficient water, the filter element swells and the tipping opens away from the filter. This facilitates disintegration of the water-disintegratable paper.

Smoking article with water-disintegratable paper filtration material having water-susceptible adhesives

The invention relates to low delivery cigarettes, usually having a mainstream particulate matter delivery of about 9 mg or less. An embodiment has a rod of tobacco material and a filter element. The filter element is an alkali filter material section having a loading level of less than 12% by weight of the section. The characteristics of the cigarettes are arranged so that, when smoked, the alkaline filter material is exposed to an amount of smoke acceptable to achieve an increased perception of smoke impact.

Smoking articles

Smoking article with non-combustible wrapper, combustible fuel source

A smoking article which comprises tobacco treated with a high loading level of humectant and which has been expanded by a high level expansion process to produce expanded tobacco having a humectant loading level in the range of 4% to 15%. The particulate matter, water, nicotine and humectant free (PMWNHF) to nicotine delivery ratio of smoking articles according to the invention and smoked under standard machine smoking conditions is not more than 8 to 1.

Low sidestream cigarettes comprise at least 20% expanded tobacco and a cigarette paper comprising a burn retardant.

Low sidestream cigarettes comprise at least 20% expanded tobacco and cigarette paper of an air permeability of not more than 20 Coresta units, the tobacco density being between 100 and 260 mg cm.sup.-3.

The smoking articles, such as cigarettes, comprise smoking material wrapped in a low side stream wrapper paper incorporating or being coated with a stain resist substance, such as EVA (ethylene vinyl acetate).

Growing community of inventors

Southampton, United Kingdom

David John Dittrich