Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Patent
1997-03-26
1998-03-24
Page, Thurman K.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
502102, 502325, B01J 3100, B01J 2358
Patent
active
057312575
ABSTRACT:
A high surface area oxidative catalyst smoke suppressive composition, smoke suppressive articles, and method of making such compositions and articles are disclosed. The smoke suppressive composition is a solid solution comprising a mixture of iron (Fe) and magnesium (Mg) that promotes efficient combustion, articles treated with such compositions, and methods for making such smoke suppressive compositions and articles. The smoke suppressive composition is made by co-precipitating Fe and Mg from an aqueous solution in the presence of a base. The iron-magnesium composition demonstrates high surface area and efficient combustion for embodiments having iron in an amount from approximately 3 mol % to approximately 30 mol % and magnesium in an amount from approximately 97 mol % to approximately 70 mol %. The compositions provide superior smoke suppression for items such as cigarettes and smoke suppressive articles. The smoke suppressive compositions are particularly useful for reducing cigarette sidestream smoke in cigarettes.
REFERENCES:
patent: 2003690 (1935-06-01), Lewton
patent: 3993607 (1976-11-01), Florence
patent: 4246359 (1981-01-01), Whelan
patent: 4296762 (1981-10-01), Eicher et al.
patent: 4333484 (1982-06-01), Keritsis
patent: 4396730 (1983-08-01), Imahashi
patent: 4420002 (1983-12-01), Cline
patent: 4450847 (1984-05-01), Owens
patent: 4506684 (1985-03-01), Keritsis
patent: 4805644 (1989-02-01), Hampl, Jr. et al.
patent: 4881557 (1989-11-01), Martin
patent: 4915118 (1990-04-01), Kaufman et al.
patent: 5060676 (1991-10-01), Hearn et al.
patent: 5253660 (1993-10-01), Dixit et al.
patent: 5386838 (1995-02-01), Quincy, III et al.
Keating et al., "Magnesium Hydroxide: A Halogen Free Flame and Smoke Suppressant for Polypropylene," Modif. Addit., Div. Fire Retard. Chem. Assoc., pp. 123-132, 1985.
Scarano et al., "Dioxygen Adducts of Iron (II) at the Surface of Solid Solutions," Journal of Molecular Catalysis, 38, pp. 287-293, 1986.
Naono, Hiromitu, "Micropore Formation Due to Thermal Decomposition of Magnesium Hydroxide," Colloids and Surfaces, 37, pp. 55-70, 1989.
Schiavello et al., "Structure and Catalytic Activity of Iron Oxide and Magnesium Oxide Solid Solutions," Journal of the Chemical Society, Faraday Transactions, 1, pp. 1642-1648, 1975.
Kamswari, S., "Effect of Method Preparation on the Morphology and Physical Properties of Solid Catalysts," Symp. on Science of Catalysis and Its App. in Industry, FPDIL, Sindri, pp. 22-24, 1979.
Valigi et al., "Structure and Catalytic Activity of Iron Oxide and Magnesium Oxide Solid Solutions," Journal of the Chemical Society, Faraday Transactions 1, pp. 1631-1641.
Hornsby et al., "Mechanism of smoke suppression and fire retardance in polymers containing magnesium hydroxide filler", Plastics and Rubber Processing and Applications 11, pp. 45-51, 1989.
Hornsby et al., "Magnesium hydroxide--a combined flame retardant and smoke suppressant filler for thermoplastics," Plastics and Rubber Procesing and Applications 6, pp. 169-175, 1986.
2nd Enlarged Edition of Concise Chemical and Technical Dictionary, p. 759.
Cartwright William Francis
Qunicy III Roger Bradshaw
Kimberly--Clark Worldwide, Inc.
Page Thurman K.
Shelborne Kathryne E.
Sidor K. V.
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