Tobacco filter and fibrous ion exchange resin
AssigneeToray Industries, Inc.
InventorsSeiichi Yoshikawa, Toshio Yoshioka, Masaharu Shimamura
Life of this patent
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Abstract
A filter for tobacco smoke containing a fibrous ion exchange resin and a fibrous ion exchange resin wherein at least a part of the fiber is fibrillated or split for use in making the filter is disclosed. The filter efficiently removes substances harmful to the human body, e.g., ionic, polar, carcinogenic, and mutagenic substances, and nicotine and tar from tobacco smoke.
Claims18
A filter for tobacco smoke which comprises an ion exchange fiber, wherein an ion-exchangeable component itself forms a fibrous structure, the ion-exchangeable component being substantially water-insoluble.
A fibrous ion exchange resin of fibrillated or split islands-in-sea construction comprising an ion exchangeable sea component reinforced with an island component.
A sheet which contains a fibrous ion exchange resin of fibrillated or split islands-in-sea construction comprising an ion exchangeable sea component reinforced with an island component.
A filter for tobacco smoke, comprising a sheet comprising an ion exchange fiber, wherein an ion-exchangeable component itself forms a fibrous structure, the ion-exchangeable component being substantially water-insoluble, wherein said sheet is arranged in a position parallel to the axis of the filter.
Dependencies are inferred from the claim text.