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US4450847: Wrapper for smoking articles and method

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Filing Information

Inventor(s) William F. Owens ·
Assignee(s) Olin Corporation ·
Attorney/Agent(s) Kerkam, Stowell, Kondracki & Clarke ·
Primary Examiner Vincent Millin ·
Application Number US6366315
Filing date 04/07/1982
Issue date 05/29/1984
Predicted expiration date 04/07/2002
U.S. Classifications 131/365  · 131/331  ·
International Classifications A24D 102  ·
Kind CodeA
International Classifications 131365;334;335;31 ·
16 Claims, No Drawings


Abstract

A wrapper for smoking articles such as cigarettes, cigars and the like containing precipitated amorphous magnesium hydroxide gel. Other components of the filler for the wrapper can be either an unreactive grade of magnesium oxide or calcium carbonate. For the most effective reduction in sidestream tar and visible sidestream smoke the basis weight of the paper should be between 30 g/M.sup.2 and 100 g/M.sup.2. The filler should constitute 30% to 60% of the total sheet weight. The precipitated magnesium hydroxide gel should be present to the extent of approximately 5% to 50% by weight of the total filler and preferably between 10% and 25%.

Independent Claims | See all claims (16)

  1. 1. A wrapper for smoking articles such as cigarettes, cigars and the like comprising a cellulosic sheet containing, as filler, a small fraction of freshly precipitated amorphous magnesium hydroxide gel coated on or applied to the fibers of the sheet wherein the small fraction of amorphous magnesium hydroxide gel comprises 5% to 50% by weight of the total filler.
  2. 8. A smoking article comprising a tobacco charge and a wrapper for the tobacco charge, said wrapper comprising a cellulosic sheet containing, as a filler, a small fraction of freshly precipitated amorphous magnesium hydroxide gel coated on or applied to the fibers of the sheet, whereby upon burning the smoking article visible sidestream smoke is reduced, wherein the precipitated amorphous magnesium hydroxide gel comprises 5% to 50% by weight of the total filler.
  3. 13. A method for reducing the visible sidestream smoke emanated from a smoking article comprising wrapping the tobacco charge in the smoking article in a combustible cellulosic sheet containing, as a filler, a small fraction of freshly precipitated amorphous magnesium hydroxide gel coated or applied to the fibers of the sheet, wherein the precipitated amorphous magnesium hydroxide gel comprises 5% to 50% by weight of the total filler.

References Cited

U.S. Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
US2733720 Schur et al. Feb 1956
US2890704 LAMM WILLIAM R Lamm Jun 1959
US2998012 LAMM WILLIAM R Lamm Aug 1961
US4231377 Olin Corporation Cline et al. Nov 1980

Referenced By

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EP0404580 BRITISH-AMERICAN TOBACCO INVESTMENTS) LIMITED Paul David Case et al. Jun 1999
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