Wrapper for smoking articles and method

Patent 4433697 Issued on February 28, 1984. Estimated Expiration Date:

April 7, 2002. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

1518944

2307088

2733720

2890704

2998012

3477865

Wrapper for smoking articles containing magnesium oxide Patent #: 4231377
Issued on: 11/04/1980
Inventor: Cline , et al.

Inventors

Assignee

Olin Corporation

Application

No. 06/366314 filed on 04/07/1982

US Classes:

131/365, Wrapper or binder131/343, Plasticizer or adhesive coating131/352, Compositions, e.g., smoking or chewing mixture or medium131/359Tobacco substitute, i.e., nontobacco

Examiners

Primary: Millin, V.

Attorney, Agent or Firm

Kerkam, Stowell, Kondracki & Clarke

International Classes

A24D 1/02 (20060101)
A24D 1/00 (20060101)

Abstract

A wrapper is provided for smoking articles such as cigarettes, cigars and the like having incorporated therein at least 1% by weight of certain ceramic fibers in the paper furnish in combination magnesium oxide and/or magnesium hydroxide fillers, whereby the combination acts to significantly reduce visible sidestream smoke emanating from the smoking article during static burning, and improves ashing. Wrappers made according to this invention may be made by incorporating the magnesium hydroxide, magnesium oxide and the other fillers in the wrapper pulp furnish containing the ceramic fibers or either or both of the fillers may be applied to the improved wrapper as a coating for the papers. In the case of cigarette papers, the ceramic fibers may be added to an ordinary paper furnish such as pulped wood or flax fibers. The furnish of fiber pulp and ceramic fibers and fillers are used to make a paper sheet on conventional papermaking machines.