Use of eitelite to reduce sidestream smoke
AssigneePhilip Morris Incorporated
InventorJohn B. Paine, III
Life of this patent
Estimating the term…
Abstract
Mineral phase eitelite Na.sub.2 Mg(CO.sub.3).sub.2 !, either alone or in combination with other filters, significantly reduces the amount of sidestream smoke produced by the burning smoking article while providing the smoking article with good ashing characteristics.
Claims15
A paper wrapper for a smoking article comprising as filler eitelite in an amount sufficient to substantially reduce the amount of sidestream smoke produced by the burning smoking article while providing the smoking article with ash coherence.
A wrapper for a cigarette comprising a cellulosic sheet containing as filler from about 10% to about 30% eitelite selected from the group consisting of anhydrous eitelite, partially hydrolyzed eitelite, and mixtures thereof;
- from about 10% to about 30% of an additional filler compound selected from the group consisting of magnesite, calcite, aragonite, magnesium hydroxide, hydromagnesite, titanium dioxide, and mixtures thereof;
- the wrapper having a basis weight of between 25 g/m.sup.2 and 70 g/m.sup.2, and a porosity of from 2 to 15 Coresta units.
A cigarette comprising a tobacco rod and a wrapper for the tobacco rod, said wrapper comprising a cellulosic sheet containing, as a filler, from about 10% to about 30% of eitelite selected from the group consisting of anhydrous eitelite, partially hydrolyzed eitelite, and mixtures thereof;
- from about 10% to about 30% of at least one additional filler compound selected from the group consisting of magnesite, calcite, aragonite, magnesium hydroxide, titanium dioxide, and hydromagnesite;
- the paper wrapper further having a water-soluble sizing agent selected from the group consisting of inorganic and organic salts of potassium;
- the amount of sidestream smoke produced by the burning cigarette being substantially reduced while providing the cigarette with ash coherence.
A method for reducing visible sidestream smoke emanated from a smoking article, comprising the step of
- wrapping a tobacco rod of the smoking article in a combustible cellulosic sheet containing eitelite selected from the group consisting of anhydrous eitelite, partially hydrolyzed eitelite, and mixtures thereof, the eitelite being present in an amount sufficient to substantially reduce the visible sidestream smoke while maintaining ash coherence.
A method of preparing a paper mapper for a smoking article, comprising the step of
- incorporating eitelite into a cellulosic base web, the eitelite selected from the group consisting of anhydrous eitelite, partially hydrolyzed eitelite, and mixtures thereof;
- the eitelite being in an amount sufficient to substantially reduce visible sidestream smoke while maintaining ash coherence.
A method for preparing a cigarette, comprising the step of
- incorporating eitelite selected from the group consisting of anhydrous eitelite, partially hydrolyzed eitelite, and mixtures thereof in a filler for the cigarette wrapper, the filler being incorporated in an amount sufficient to substantially reduce the amount of visible sidestream smoke while maintaining ash coherence;
- sizing the wrapper with at least one sizing agent selected from the group consisting of water-soluble potassium salts;
- and fabricating the article with the wrapper about a tobacco rod, the wrapper having a basis weight of 25 to 70 g/m.sup.2 ;
- a sizing weight of 2 to 15%;
- and a porosity of 2 to 15 Coresta units.
Dependencies are inferred from the claim text.