Global Patent Index - EP 1028637 A1

EP 1028637 A1 20000823 - CIGARETTE WITH REDUCED GAS PHASE

Title (en)

CIGARETTE WITH REDUCED GAS PHASE

Title (de)

GASPHASENREDUZIERTE ZIGARETTE

Title (fr)

CIGARETTE A PHASE GAZEUSE REDUITE

Publication

EP 1028637 A1 20000823 (DE)

Application

EP 97951904 A 19971113

Priority

EP 9706390 W 19971113

Abstract (en)

[origin: WO9925210A1] The invention relates to a cigarette with a filter containing activated carbon. Said cigarette comprises a tobacco string wrapped in cigarette paper, a double filter having a string-side part consisting of a tissue paper containing carbon, and a peripherally extending filter ventilation zone and located in the mouth-side part made of cellulose acetate. The tissue paper of the string-side filter part is a very bulky paper which contains 20 to 50 % wt microfine powdered active carbon. The ratio of condensate retention capacities of the string-side filter part to the mouth-side filter part ranges from 1 to 2. The air permeability of the cigarette paper is comprised between 40 and 100 Coresta units and the filter ventilation grade is comprised between 5 and 60 %.

IPC 1-7

A24D 3/16; A24D 3/10; A24D 3/04

IPC 8 full level

A24D 1/04 (2006.01); A24D 3/04 (2006.01); A24D 3/10 (2006.01); A24D 3/16 (2006.01)

CPC (source: EP KR US)

A24D 3/043 (2013.01 - EP US); A24D 3/10 (2013.01 - EP US); A24D 3/16 (2013.01 - KR); A24D 3/163 (2013.01 - EP)

Citation (search report)

See references of WO 9925210A1

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE

DOCDB simple family (publication)

WO 9925210 A1 19990527; AT E220862 T1 20020815; BG 104522 A 20010131; BG 63987 B1 20030930; DE 59707821 D1 20020829; DK 1028637 T3 20021111; EA 001556 B1 20010423; EA 200000507 A1 20001030; EE 200000264 A 20010615; EP 1028637 A1 20000823; EP 1028637 B1 20020724; ES 2179383 T3 20030116; HK 1035472 A1 20011130; HU 228293 B1 20130828; HU P0100096 A2 20010528; HU P0100096 A3 20010628; JP 2001522616 A 20011120; JP 3387055 B2 20030317; KR 20010032084 A 20010416; SK 283397 B6 20030701; SK 6942000 A3 20001009; TR 200001355 T2 20000921; UA 49097 C2 20020916

DOCDB simple family (application)

EP 9706390 W 19971113; AT 97951904 T 19971113; BG 10452200 A 20000612; DE 59707821 T 19971113; DK 97951904 T 19971113; EA 200000507 A 19971113; EE 200000264 A 19971113; EP 97951904 A 19971113; ES 97951904 T 19971113; HK 01106113 A 20010829; HU P0100096 A 19971113; JP 2000520659 A 19971113; KR 20007005208 A 20000513; SK 6942000 A 19971113; TR 200001355 T 19971113; UA 00063448 A 19971113