Electrical conduit containing a fire-resisting thermoplastic composition
AssigneeTicona LLC
InventorsChristopher McGrady, Kaushik Chakrabarty, David McIlroy, Xinyu Zhao
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Abstract
An electrical conduit that contains a jacket that defines a hollow passageway is provided. At least a portion of the jacket is formed from a thermoplastic composition that contains a polyarylene sulfide and fire-resisting system. Due in part to the specific nature and concentration of these components, the present inventors have discovered that the resulting thermoplastic composition may have a relatively high melting temperature, such as from about 200° C. to about 500° C.
Claims30
An electrical conduit comprising a jacket that defines a hollow passageway, wherein at least a portion of the jacket is formed from a thermoplastic composition that comprises a polyarylene sulfide and a fire-resisting system, the fire-resisting system comprising an organophosphorous flame retardant, and wherein the thermoplastic composition has a melting temperature of from about 200° C. to about 500° C., wherein the thermoplastic composition exhibits a peak heat release rate of 200 kW/m2 or less, as determined in accordance with ASTM E1354-11b.
An electrical conduit comprising a jacket that defines a hollow passageway, wherein at least a portion of the jacket is formed from a thermoplastic composition that comprises polyphenylene sulfide and a fire-resisting system, the fire-resisting system comprising a halogen-free polyphosphate flame retardant and an inorganic molybdate or inorganic borate, and wherein the thermoplastic composition has a melting temperature of from about 200° C. to about 500° C., wherein the thermoplastic composition exhibits a peak heat release rate of 200 kW/m2 or less, as determined in accordance with ASTM E1354-11b.
An electrical conduit comprising a jacket that defines a hollow passageway, wherein at least a portion of the jacket is formed from a thermoplastic composition that comprises a polyarylene sulfide and a fire-resisting system, the fire-resisting system comprising an organophosphorous flame retardant, and wherein the thermoplastic composition has a melting temperature of from about 200° C. to about 500° C., wherein the thermoplastic composition exhibits an average specific extinction area of about 0.800 m2/g or less, as determined in accordance with ASTM E1354-11b and/or a maximum average heat of emission of about 150 kW/m2 or less, as determined in accordance with ASTM E1354-11b.
Dependencies are inferred from the claim text.