The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 24, 1984
Filed:
Dec. 24, 1981
Kimberly-Clark Corporation, Neenah, WI (US);
Abstract
Sheet material especially useful in forming wrappers for smokable articles such as cigarettes that results in reduced sidestream smoke. The sheet is formed by applying to a cellulosic web an amount of an alkali metal salt greatly in excess of the amounts of such materials previously used as burn enhancers. The cellulosic material may be flax fiber or other natural cellulosic fibers conventionally used for such wrappers. Examples of salts include the sodium or potassium salts of acids such as carbonic, formic, acetic, propionic, malic, lactic, glycolic, citric, tartaric, fumaric, oxalic, malonic, succinic, nitric, and phosphoric. The composition can be applied by any conventional method such as coating, dipping, impregnating, printing, and the like. For example, at least about 6% by weight of potassium citrate is needed to obtain the benefits of the invention, and preferably an amount in the range of from about 12% to about 16% by weight. When such papers are used as cigarette wrappers, they effect a reduction of the total particulate matter in sidestream smoke of up to about 50% without serious deterioration of other desirable properties.