| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide effective non-halogenated flame retardant combinations that impart flame retardant characteristics to thermoplastic polyurethane compositions while not impairing mechanical strength and processability. <P>SOLUTION: The flame retardant thermoplastic polyurethane (TPU) compositions have a flame retardant package comprising an organo-phosphinate component, an organo-phosphate component, and a polyhydric alcohol. The flame retardant components may be present in an amount from about 5 to about 40 wt.% of a phosphinate compound, from about 5 to about 20 wt.% of a phosphate compound, and from about 0.1 to about 15 wt.% of a polyhydric alcohol, based on the total weight of the TPU composition. Processes are disclosed to make the TPU compositions and to make wire and cable constructions employing the TPU compositions as the jacket of the wire and cable constructions. The TPU compositions exhibit excellent flame retardant capabilities as measured by Limited Oxygen Index testing and/or UL 94 Vertical Burn tests. <P>COPYRIGHT: (C)2012,JPO&INPIT |
