William M Owens

US Patent:

44336977, Feb 28, 1984

Filed:

Apr 7, 1982

Appl. No.:

6/366314

Inventors:

Warren K. Cline - Brevard NC
William F. Owens - Pisgah Forest NC

Assignee:

Olin Corporation - Pisgah Forest NC

International Classification:

A24D 102
A24D 118
A24B 314

US Classification:

131365

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.

US Patent:

52479501, Sep 28, 1993

Filed:

Jul 2, 1991

Appl. No.:

7/724897

Inventors:

Richard H. Martin - Brevard NC
William F. Owens - Pisgah Forest NC
Gary W. Wise - Candler NC

Assignee:

P. H. Glatfelter Company - Spring Grove PA

International Classification:

A24D 102

US Classification:

131365

Abstract:

Treating cigarette paper with (1) binary combinations of the sodium and potassium salts of a carboxylic acid or (2) binary combinations of an alkali metal chloride and an alkali metal carboxylate provides a means of controlling the static burning rate of cigarettes wrapped in these papers. Burn rate control is functionally implemented by varying (1) the sodium to potassium cation ratio at constant total alkali metal cation weight for the former binary combination and (2) the ratio of the alkali metal cation from the chloride to the alkali metal cation from the carboxylate at constant total alkali metal cation weight for the latter binary combination. This means of burn rate control is effective for cigarette papers containing various inorganic fillers and weighing less then 25 g/m. sup. 2 to over 45 g/m. sup. 2. Depending on the specific combination of salts, type cigarette paper and total alkali metal cation weight in the sheet, the static burning rate can be controlled over a range of 6 to 19 mg/min as the sodium/potassium ratio or alkali metal cation (from chloride)/alkali metal cation (from carboxylate) ratio is incrementally varied.

US Patent:

42256364, Sep 30, 1980

Filed:

Mar 8, 1979

Appl. No.:

6/018738

Inventors:

Warren K. Cline - Brevard NC
Stuart W. McCarty - Brevard NC
William F. Owens - Pisgah Forest NC

Assignee:

Olin Corporation - Pisgah Forest NC

International Classification:

B05D 302
B05D 500
A24D 102
A24D 108

US Classification:

427243

Abstract:

A method for producing high porosity, high carbon content cigarette papers in which a paper substrate having an initial Filtrona porosity of at least 10,000 air permeability units is coated with an aqueous suspension containing from 10 to 50% by weight finely divided carbon, up to 3% by weight of a water-soluble binder, and from 0. 5 to 3% by weight of an alkali metal carbonate and thereafter dried resulting in a coated paper having a Filtrona porosity of not less than 5,000 air permeability units. Carbon coated cigarette papers made in accordance with the foregoing method may be used as the inner wrapper for the tobacco column of a cigarette in combination with an outer wrapper of porous or perforated cigarette paper to provide substantial reductions in the constituent yields in the mainstream and sidestream smoke emanating from the cigarette without increasing the carbon monoxide yield obtained in the smoke from the cigatette when compared to conventional cigarettes containing a single wrap of standard cigarette paper.