EP 0434339 A3 19911009 - CIGARETTE AND CIGARETTE FILTER ELEMENT THEREFOR
Title (en)
CIGARETTE AND CIGARETTE FILTER ELEMENT THEREFOR
Publication
Application
Priority
- US 45217589 A 19891218
- US 60628790 A 19901106
- US 62149990 A 19901207
Abstract (en)
[origin: EP0434339A2] A cigarette comprises a blend of tobacco materials and a filter element provided from a non-woven thermoplastic material. The non-woven material comprises polyester or polypropylene fibers. The non-woven material is in intimate contact with an acidic material (e.g. phosphoric acid) or a basic material (e.g., sodium hydroxide).
IPC 1-7
IPC 8 full level
A24B 15/24 (2006.01); A24D 3/08 (2006.01); A24D 3/16 (2006.01)
CPC (source: EP)
A24B 15/24 (2013.01); A24D 3/08 (2013.01); A24D 3/16 (2013.01)
Citation (search report)
- [A] EP 0304759 A2 19890301 - REYNOLDS TOBACCO CO R [US]
- [A] DE 1956949 A1 19700618 - CIGARETTE COMPONENTS LTD
- [A] GB 1029717 A 19660518 - PFIZER LTD
- [A] DE 1692895 A1 19720518 - BRINKMANN AG M
- [A] GB 2190275 A 19871118 - BRITISH AMERICAN TOBACCO CO
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0434339 A2 19910626; EP 0434339 A3 19911009; CA 2032378 A1 19910619; JP H04135476 A 19920508
DOCDB simple family (application)
EP 90313767 A 19901217; CA 2032378 A 19901217; JP 41105690 A 19901217