Abstract: A chlorine- and bromine-free fire retardant composition based on organic polymer and zeolite is disclosed.

Abstract: Substrates, which may be either flexible or rigid, are coated with a flame retardant composition containing an organic polymer, a filler and a zeolite. Good flame retardant properties are obtained even where the composition contains low levels of conventional flame retardant additives such as antimony compounds, brominated compounds and zinc compounds. The flame retardant composition may also be used to adhere different substrates together.

Abstract: A flame-retarded polymeric composition is provided which contains a) a polyolefin, b) a mixture of a halogenated flame-retardant and zeolite, and optionally c) a synergist. Also provided is a flame and smoke-retarded polymeric composition containing a polyolefin and a mixture of a hydrated metal oxide and zeolite.

Abstract: Zeolite-containing polyvinyl chloride containing compositions that are useful as the insulation for plenum cables are disclosed. A zeolite, either natural or synthetic, can satisfactorily replace either part or all of the molybdenum compound, particularly ammonium octamolybdate, in low smoke polyvinyl chloride based plenum compositions. Ion-exchanged zeolites, such as the zinc ion-exchanged zeolite can also be used. Zeolites are especially useful in lead-free Low Smoke PVC compositions. Because the cost of zeolite is only a fraction of the cost of the molybdenum compounds currently used in plenum cable compositions, this will dramatically reduce the cost of these materials.