Abstract:
The invention relates to an additive releasing material comprising a carrier material having on its surface one or more additives, the additive releasing material having a desorption temperature selected to allow controlled temperature-dependent release of the additive(s). The invention further relates to filters and smoking articles including such additive releasing materials, and to methods for preparing the additive releasing materials.
Abstract:
The present disclosure relates to aerosol delivery devices, methods of forming such devices, and elements of such devices. For example, some aerosol delivery devices of the current disclosure include a reservoir having a liquid aerosol precursor composition, an electrical heater in fluid communication with the reservoir and configured to vaporize the liquid aerosol precursor composition to form an aerosol, and a filter operatively arranged relative to the electrical heater such that at least a portion of the formed aerosol passes therethrough, the filter being configured to selectively bind one or more undesirable impurities.
Abstract:
Smoking articles which involve the use of amphiphile-modified sorbents are disclosed. The amphiphile-modified sorbent has at least one amphiphilic compound bound to an inorganic molecular sieve substrate. The amphiphile-modified sorbent selectively removes certain constituents from cigarette smoke, while maintaining other constituents, such as those that contribute to flavor. Methods for making cigarette filters and smoking articles using amphiphile-modified sorbents, as well as methods for smoking a cigarette containing an amphiphile-modified sorbent, are also provided.
Abstract:
This invention relates to a new process for the production of crosslinked, water-insoluble synthetic resins with anion exchanger properties wherein the crosslinked, water-insoluble organic polymers containing aromatic nuclei are reacted, in the presence of swelling agents for the polymer and in the presence of acid catalysts, with esters of N-hydroxyalkylamides or N-hydroxyalkylimides, and the acylamido alkylated reaction product is subsequently hydrolysed in known manner. The invention furthermore concerns new crosslinked water-insoluble synthetic resins with anion exchanger properties containing at least two aminoalkyl groups per aromatic nucleus.
Abstract:
An improved cigarette filter material is formed from the porous, granular salt of a weakly basic anion exchange resin, said salt being formed by the at least partial neutralization of the basic resin by a weak acid. The salt is characterized by a surface area of from about 1 to 100 square meters per gram, a pore volume of from 0.2 to 0.5 cubic centimeters per gram, an average pore diameter of from about 0.1 to 1.0 microns and the salt is formed by the at least partial neutralization of the basic resin by a weak acid having a pKa between 3.5 and 5.5.
Abstract:
Described herein is a composition for use in a device for generating an inhalable medium, the composition comprising (i) 50-85% by weight of air-cured and/or fire-cured tobacco (ii) 0-50% by weight of flue-cured and/or sun-cured tobacco that has not been subjected to any further treatment which affects the flavor properties of tobacco, and (iii) 0-50% by weight of flue-cured and/or sun-cured tobacco that has been further treated to enhance the flavor properties of tobacco.
Abstract:
The invention relates to composite materials comprising particles of at least two different additive materials and a polymer binding said additive particles together the composite material. The invention also relates to incorporating at least two different additive materials into a filter material, using the composite material.
Abstract:
Tobacco smoking mixtures capable of producing tobacco smoke are provided which reduce the cytotoxicity and/or mutagenicity of the tobacco smoke. The tobacco smoking mixtures include tobacco cut filler and glycerin in an amount effective to reduce cytotoxicity and/or mutagenicity of smoke produced by the tobacco smoking mixture. The tobacco smoking mixtures enable a further reduction in cytotoxicity and/or mutagenicity when glycerin is combined with palladium or salts of calcium and/or magnesium.
Abstract:
A smoking article includes a tobacco rod in axial alignment with a filter section with a catalyst bed disposed between the tobacco rod and the filter section. The catalyst bed may be heated from an external portable heating source or may be heated by the internal evolving gases of combustion of the tobacco.