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:
Aug. 25, 2020
Filed:
Jun. 22, 2015
Philip Morris Products S.a., Neuchatel, CH;
Szu-Sung Yang, Washington, D.C., WA (US);
Vadim Migirin, Malaysa Kashtanovaya, RU;
Philip Morris Products S.A., Neuchatel, CH;
Abstract
The invention relates to a reconstituted tobacco sheet having a basis weight of less than about (14) grams per square foot (about (151) grams per square metre) and comprising tobacco stem or stalk refined fibres having a length of at least about (300) micrometres and tobacco cast leaf material. There is further provided a method of making a reconstituted tobacco sheet, the method comprising preparing a dispersion of tobacco stems or stalks in a liquid, the dispersion having a consistency of at least about (10) percent by weight. The tobacco stems or stalks in the dispersion are refined to obtain a pulp suspension having a freeness (drainability) of at least about (30) degrees Schopper-Riegler and comprising tobacco stem or stalk fibres having a length of at least about (300) micrometres dispersed in the liquid. The pulp suspension is combined with tobacco cast leaf material to obtain a slurry, and a sheet is formed from the slurry.