Olin Corporation

Stuart W McCarty

William F Owens, Jr

Warren K Cline

R Hugo Martin

Clarence Morris O'Shields

A method for producing high porosity, high carbon content cigarette papers in which a paper substrate having an initial Filtrona porosity of at least 10,000 air permeability units is coated with an aqueous suspension containing from 10 to 50% by weight finely divided carbon, up to 3% by weight of a water-soluble binder, and from 0.5 to 3% by weight of an alkali metal carbonate and thereafter dried resulting in a coated paper having a Filtrona porosity of not less than 5,000 air permeability units. Carbon coated cigarette papers made in accordance with the foregoing method may be used as the inner wrapper for the tobacco column of a cigarette in combination with an outer wrapper of porous or perforated cigarette paper to provide substantial reductions in the constituent yields in the mainstream and sidestream smoke emanating from the cigarette without increasing the carbon monoxide yield obtained in the smoke from the cigatette when compared to conventional cigarettes containing a single wrap of standard cigarette paper.

High porosity carbon coated cigarette papers

A method for obtaining uniform porosity in printed inherently porous cigarette tipping papers from base papers of differing relative porosities, comprising measuring the porosity of the base paper and adjusting the viscosity of the ink used to print the base paper relative to the porosity of the base paper. The viscosity of the ink is progressively increased or decreased relative to decreases or increases respectively in the porosity of the base paper to arrive at a predetermined uniform final porosity in the printed paper.

Method for obtaining uniform porosity in printed inherently porous

A paper tobacco substitute which produces a neutral taste when blended with tobacco, comprising cellulose fibers and a filler, said filler comprising at least 55% by weight finely pulverized carbon particles based on the weight of the cellulose. In addition to carbon, the filler may include an alkaline earth metal carbonate or oxide such as calcium carbonate or magnesium oxide to further enhance the properties of the paper as a tobacco substitute. The carbon filled paper may be cut or shredded to simulate natural tobacco and can be used as a blend with tobacco in smoking articles.

Growing community of inventors

Brevard, NC, United States of America

Stuart W McCarty