Rothmans International Services Limited

Martin Graham Duke

John Roger Sampson

Adrian Roy Stewart-Cox

Michael Patrick Parker

Edward Dennis John

A filter for a smoking article incorporating particles coated with platinum selectively reduces the amount of volatiles of mainstream smoking article smoke passing through the filter. The platinum may be a continuous or discontinuous coating, usually on a coating of another metal, and this coating(s) will usually encapsulate the particle substrate. This substrate may be low activity activated carbon.

Smoking article and filter therefor

A lightweight cigarette filter including a filter element containing filter material having a total Denier of less than 35,000 or a bulk density of less than 0.12 gcm.sup.-3 in which part of the volume of the filter is occupied by a space filler impervious to smoke flow therethrough and the bulk density of which is less than the bulk density of the equivalent amount of filter material which it replaces.

Growing community of inventors

Maldon, United Kingdom

Martin Graham Duke