Hooker Chemicals & Plastics Corporation

Norman W Dachs

James J Duffy

Irving Gordon

The invention relates to thermoplastic polymeric compositions comprising a linear aromatic polyester of a bisphenol and a dicarboxylic acid admixed with a minor proportion of a perfluoroalkenoxy surface active compound. These compositions which are suitable for use as film or molding compositions exhibit enhanced tensile strength on ageing without substantial detriment to other properties of the polyester.

Polyester compositions of enhanced tensile strength on ageing

High impact thermoplastic polymers such as the styrenic based polymers, ABS and high impact polystyrene, are rendered fire retardant by the incorporation in the polymer of a mixture of a diadduct of hexahalocyclopentadiene and decabromodiphenyl oxide. The fire retardance of the compositions can be further enhanced by the incorporation therein of a metallic compound, particularly a compound of aluminum, zinc, arsenic, antimony or bismuth. A preferred metallic compound is antimony oxide.

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Buffalo, NY, United States of America

Norman W Dachs