A low ignition propensity cigarette having oxygen donor...

A - Human Necessities – 24 – D

Patent

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Details

A24D 1/02 (2006.01) A24D 1/10 (2006.01) D21H 21/14 (2006.01)

Patent

CA 2462958

The invention relates to a low ignition propensity cigarette having a self- extinguishing cigarette wrapper which is capable of self-extinguishing the cigarette. The cigarette wrapper comprises an oxygen storage and donor metal oxide to support and maintain free-burn of the self-extinguishing cigarette while retaining the low ignition propensity property of the self-extinguishing cigarette wrapper. The invention further relates to a low sidestream smoke cigarette having low ignition propensity properties. The wrapper has a composition which reduces sidestream smoke from a burning cigarette and comprises in combination, an oxygen storage and donor metal oxide catalyst and an essentially non-combustible finely divided porous particulate adjunct for the catalyst. The sidestream smoke reducing composition reduces porosity of the wrapper to render the cigarette as self-extinguishable. The oxygen storage and donor metal oxide catalyst is in an amount which supports free burn of the cigarette while retaining the self-extinguishing property of the cigarette wrapper.

Cette invention se rapporte à une cigarette ayant une faible propension à l'inflammation, comprenant un papier d'emballage auto-extinguible capable d'éteindre seul la cigarette. Le papier d'emballage de la cigarette contient un oxyde métallique accumulateur et donneur d'oxygène destiné à soutenir et entretenir la combustion libre de la cigarette auto-extinguible, tout en conservant la propriété de faible propension à l'inflammation du papier d'emballage auto-extinguible. Cette invention concerne en outre une cigarette à faible émission de fumée secondaire ayant des propriétés de faible propension à l'inflammation. Le papier d'emballage possède une composition qui réduit l'émission de fumée secondaire à partir de la cigarette qui brûle et contient, en association, un catalyseur l'oxyde métallique accumulateur et donneur d'oxygène et un adjuvant particulaire poreux en fines particules essentiellement non combustible pour le catalyseur. La composition réduisant l'émission de fumée secondaire réduit la porosité du papier dans l'emballage, ce qui rend la cigarette auto-extinguible. Le catalyseur d'oxyde métallique accumulateur et donneur d'oxygène est présent en une quantité qui entretient la combustion libre de la cigarette, tout en préservant la propriété auto-extinguible du papier d'emballage de la cigarette.

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