EP 3915407 A4 20221026 - FILTER FOR SMOKING ARTICLE
Title (en)
FILTER FOR SMOKING ARTICLE
Title (de)
FILTER FÜR RAUCHARTIKEL
Title (fr)
FILTRE POUR ARTICLE À FUMER
Publication
Application
Priority
- JP 2019010764 A 20190125
- JP 2020002586 W 20200124
Abstract (en)
[origin: US2021321667A1] The present invention addresses the problem of providing a filter for a smoking article that can reduce a stimulus component such as formaldehyde, and that does not reduce any more than necessary a component affecting the smoke flavor included in mainstream smoke. This problem is solved by providing a smoking article filter comprising a filter segment that has a porous material containing: a hydrotalcite particle; and a nonfibrous binder resin.
IPC 8 full level
A24D 1/04 (2006.01); A24D 3/06 (2006.01); A24D 3/10 (2006.01); A24D 3/14 (2006.01); A24D 3/16 (2006.01)
CPC (source: EP US)
A24D 1/04 (2013.01 - EP); A24D 3/06 (2013.01 - EP); A24D 3/062 (2013.01 - EP US); A24D 3/10 (2013.01 - EP US); A24D 3/14 (2013.01 - EP US); A24D 3/16 (2013.01 - EP US)
Citation (search report)
- [X] WO 2018235761 A1 20181227 - JAPAN TOBACCO INC [JP]
- [XI] JP S62142559 A 19870625 - SHOKO KAGAKU KENKYUSHO KK
- [Y] WO 2012054111 A1 20120426 - CELANESE ACETATE LLC [US], et al
- [Y] EP 1470761 A1 20041027 - JAPAN TOBACCO INC [JP]
- See references of WO 2020153491A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
US 2021321667 A1 20211021; CN 113347895 A 20210903; EP 3915407 A1 20211201; EP 3915407 A4 20221026; JP WO2020153491 A1 20211118; TW 202038750 A 20201101; WO 2020153491 A1 20200730
DOCDB simple family (application)
US 202117363801 A 20210630; CN 202080010524 A 20200124; EP 20745817 A 20200124; JP 2020002586 W 20200124; JP 2020567726 A 20200124; TW 109102824 A 20200130