Ignition resistant carbonate polymer blends

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...


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524135, 524139, 524141, 524145, 524147, 524168, 524169, C08K 55393, C08K 5524/5/521




According to the present invention there are obtained improved ignition resistant carbonate polymer blends having unexpectedly better combinations of toughness, ignition resistance, processability and stability. In particular the blend comprises a major amount of carbonate polymer, a minor amount of a rubber-modified monovinylidene aromatic copolymer, and an optional rubbery core/shell graft copolymer impact modifier. As ignition resistance additives the blends contain a metal salt of an aromatic sulfur compound, a buffering aromatic sulfur compound, an organophosphorus compound, and a tetrafluoroethylene polymer.

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Encyclopedia of Polymer Science and Engineering, vol. 7, Fibers, Optical to Hydrogenation John Wiley & Sons.


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