Smoking filter and smoking article

Details Smoking filter and smoking article Smoking filter and smoking article

A - Human Necessities

24

D

A24D 3/12 (2006.01) A24D 3/04 (2006.01) A24D 3/10 (2006.01) A24D 3/16 (2006.01) D21H 17/67 (2006.01) D21H 27/00 (2006.01)

Patent

CA 2472385

A smoking filter containing a hydrotalcite compound having a layered structure wherein a large number of metal hydroxide octahedral layers are laminated on each other. Using this smoking filter, formaldehyde in the main smoke can be selectively eliminated.

La présente invention concerne un filtre anti-fumée qui contient un composé d'hydrotalcite comprenant une structure de couches dans laquelle un grand nombre de couches octahédriques d'hydroxyde métallique sont laminées entre elles. L'utilisation du filtre anti-fumée de l'invention permet d'éliminer sélectivement le formaldéhyde de la fumée principale.

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