Patent SG-11201806834T-A (SG)
Title: Smoking article having filter with hollow tube segment
Inventor: NAPPI LEONARDO
IPC: A24D3/04
Filed: 2017-02-22
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (10) International Publication Number (43) International Publication Date WO 2017/148773 Al 8 September 2017 (08.09.2017) WIPO I PCT 111111111111110111011111111111010111110111010111111110111011111011111111111110111111 W O 20 17 / 14877 3 Al (51) International Patent Classification: A24D 3/02 (2006.01) A24D 3/04 (2006.01) (21) International Application Number: PCT/EP2017/054087 (22) International Filing Date: 22 February 2017 (22.02.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 16157947.9 29 February 2016 (29.02.2016) EP (71) Applicant: PHILIP MORRIS PRODUCTS S.A. [CH/CH]; Quai Jeanrenaud 3, CH-2000 Neuchatel (CH). (72) Inventors: NAPPI, Leonardo; Impasse de la Roteyre 9, 1586 Vallamand (CH). JORDIL, Yves; 98, Avenue de France, 1004 Lausanne (CH). (74) Agent: TAYLOR, Gillian; Reddie & Grose LLP, The White Chapel Building, 10 Whitechapel High Street, Lon- don El 8QS (GB). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: with international search report (Art. 21(3)) = (54) Title: SMOKING ARTICLE HAVING FILTER WITH HOLLOW TUBE SEGMENT 18 (57) : 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 ma - terial.