Activated charcoal filter for effectively reducing p-benzosemiquinone from the mainstream cigarette smoke
AssigneeCouncil of Scientific and Industrial Research
InventorIndu Bhusan Chatterjee
Life of this patent
Estimating the term…
Abstract
A filter for tobacco smoke inhaling/generating/producing device, comprising stipulated amounts of specific grain sizes or combination of grain sizes of activated charcoal for effectively reducing from the mainstream smoke the level of p-benzosemiquinone (p-BSQ), a relatively stable highly reactive major harmful oxidant, without significantly affecting the flavor and taste of the smoke while providing comfortable mouthful of smoke and nicotine delivery, so that the charcoal filter cigarettes becomes potentially less hazardous safer cigarettes and may be acceptable to the smokers with marked reduction in health risk; the charcoal filters also effectively reduce the level of nitric oxide and tar from the mainstream smoke.
Claims29
A filter for a tobacco smoke inhaling/generating/producing device, the filter having three sections placed longitudinally one after another, comprising:
- a first section comprising cellulose acetate fiber acting as a mouth piece;
- a second section comprising requisite amounts of specific mesh sizes of activated charcoal selected from the group consisting of charcoal particles having mesh sizes of BS 44/52, BS 52/60, BS 60/72, BS 72/85, and any combinations thereof for effectively reducing p-benzosemiquinone, a highly reactive major harmful oxidant from the mainstream of said tobacco smoke;
- and
- a third section comprising cellulose acetate fiber located closer to a tobacco portion, also acting as a barrier between the activated charcoal and tobacco portion,
- wherein the activated charcoal is selected from the group consisting of 0.2 g of mesh size BS 44/52 and 0.1 p of mesh size BS 52/60, 0.2 g of mesh size BS 44/52 and 0.1 g of mesh size BS 60/72, 0.1 g of mesh size BS 44/52 and 0.1 g of mesh size BS 72/85, 0.2 g of mesh size BS 44/52 and 0.1 g of mesh size BS 72/85, 0.15 g of mesh size BS 44/52 and 0.1 g of mesh size BS 72/85, 0.1 g of mesh size BS 52/60 and 0.1 g of mesh size BS 60/72, 0.1 g of mesh size BS 52/60 and 0.1 g of mesh size BS 72/85, 0.1 g of mesh size BS 60/72 and 0.1 g of mesh size BS 72/85, 0.1 g of mesh size BS 52/60 and 0.05 g of mesh size BS 72/85, and 0.1 g of mesh size BS 60/72 and 0.05 g of mesh size BS 72/85, and any combinations thereof.
A tobacco smoke filter comprising at least three sections placed longitudinally one after another, comprising:
- a first section comprising cellulose acetate fiber;
- a second section comprising an activated charcoal formed by charcoal particles having a mesh size selected from the group consisting of:
- BS 44/52, BS 52/60, BS 60/72, BS 72/85, and any combinations thereof for effectively reducing p-benzosemiquinone;
- and
- a third section comprising cellulose acetate fiber which provides a barrier between said activated charcoal and said tobacco,
- wherein the activated charcoal is selected from the group consisting of 0.2 g of mesh size BS 44/52 and 0.1 g of mesh size BS 52/60, 0.2 g of mesh size BS 44/52 and 0.1 g of mesh size BS 60/72, 0.1 g of mesh size BS 44/52 and 0.1 g of mesh size BS 72/85, 0.2 g of mesh size BS 44/52 and 0.1 g of mesh size BS 72/85, 0.15 g of mesh size BS 44/52 and 0.1 g of mesh size BS 72/85, 0.1 g of mesh size BS 52/60 and 0.1 g of mesh size BS 60/72, 0.1 g of mesh size BS 52/60 and 0.1 g of mesh size BS 72/85, 0.1 g of mesh size BS 60/72 and 0.1 g of mesh size BS 72/85, 0.1 g of mesh size BS 52/60 and 0.05 g of mesh size BS 72/85, 0.1 g of mesh size BS 60/72 and 0.05 g of mesh size BS 72/85, and any combinations thereof.
Dependencies are inferred from the claim text.