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Method of making a cord and polymer jacket assembly having a flame retardant in the polymer jacket material
Method of making a cord and polymer jacket assembly having a flame retardant in the polymer jacket material
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机译:制备在聚合物护套材料中具有阻燃剂的帘线和聚合物护套组件的方法
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摘要
An illustrative method of making an elevator load bearing member having at least one elongated tension member at least partially covered by a jacket includes mixing a flame retardant with a polymer material. The flame retardant is selected from a group consisting of (i) a halogen-free melamine based intumescent comprising melamine cyanurate, melamine-phosphate, melamine pyrophosphate or melamine polyphosphate in an amount up to about 20% by weight of the thermoplastic polymer or (ii) a filled polymer having a nanoscale filler chemically bonded to a matrix phase. Applying the mixed flame retardant and polymer material to the tension member forms a jacket of a desired shape.
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