Search International and National Patent Collections

1. (WO2017148773) SMOKING ARTICLE HAVING FILTER WITH HOLLOW TUBE SEGMENT

Pub. No.:    WO/2017/148773    International Application No.:    PCT/EP2017/054087
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Thu Feb 23 00:59:59 CET 2017
IPC: A24D 3/02
A24D 3/04
Applicants: PHILIP MORRIS PRODUCTS S.A.
Inventors: NAPPI, Leonardo
JORDIL, Yves
Title: SMOKING ARTICLE HAVING FILTER WITH HOLLOW TUBE SEGMENT
Abstract:
A smoking article (10) comprises: a tobacco rod (12); a filter (14) in axial alignment with the tobacco rod, the filter (14) comprising: a hollow tube segment (22) having a wall thickness of no more than 0.9 mm;and a filtration portion upstream of the hollow tube segment (22), the filtration portion comprising one or more filter segments (18) (20). The hollow tube segment (22) defines a cavity (26) at the mouth end of the filter (14) providing an unrestricted flow channel that extends from the downstream end of the filtration portion to the mouth end of the filter (14). The hollow tube segment (22) is formed from a fibrous filtration material and comprises a filter plasticiser, wherein the amount of filter plasticiser is at least 22 percent by weight of the fibrous filtration material.