| 摘要 |
PROBLEM TO BE SOLVED: To provide a flame-retardant polyethylene terephthalate fiber suitably usable in the clothing, non-clothing, industrial applications, or the like while having high flame retardancy. SOLUTION: The flame-retardant polyethylene terephthalate fiber contains 0.1-2.5 wt.%, of a phosphinic acid metal salt having a specific structure having an average particle size of 1μm or less, in terms of phosphorus element; and 0.5-6.0 wt.% of a phosphorus element-free nitrogen compound having a surfactant on the surfaces of its particles and an average particle size of 5μm or less, in terms of nitrogen element. COPYRIGHT: (C)2011,JPO&INPIT
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