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:
Mar. 22, 2022
Filed:
Oct. 19, 2018
R.j. Reynolds Tobacco Company, Winston Salem, NC (US);
John E Bunch, Collierville, TN (US);
Robert Reinbold, Collierville, TN (US);
R.J. Reynolds Tobacco Company, Winston-Salem, NC (US);
Abstract
A method for reducing the content of nitrosamines in a tobacco material is provided herein, the method involving the steps of contacting a tobacco material with a treatment solution so as to form a treatment composition containing, in addition to the tobacco material, an acid, a complexing agent, a solvent, and, optionally, a salt, at a pH of about 5.5 or less, to obtain a tobacco material having a tobacco-specific nitrosamine content that is lower than the initial tobacco-specific nitrosamine content. The method can optionally include further processing of the tobacco material. Smoking articles and other tobacco products incorporating such treated tobacco materials are also provided.