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    • 4. 发明申请
    • Filtered polyetherimide polymer for use as a high heat fiber material
    • 用作高热纤维材料的过滤的聚醚酰亚胺聚合物
    • US20080006970A1
    • 2008-01-10
    • US11456401
    • 2006-07-10
    • Irene DrisAnne Marie LakCraig Wojcicki
    • Irene DrisAnne Marie LakCraig Wojcicki
    • D02G1/00
    • D01F6/74B29C48/05D01D1/106D01D5/088Y10T428/2913
    • Various embodiments of polymer fibers comprising a high heat polymer and process for making the polymer fibers are provided. In one embodiment, synthetic polymer fibers comprise polyetherimide polymer that is substantially free of foreign particulate matter greater than about 100 microns in size. A process for producing polymer fiber includes melting polymer comprising polyetherimide to a melt temperature that ranges from about 180-500° C. to form a molten polymer; passing the polyetherimide that is substantially free of foreign particulate matter above about 100 microns in size, through a spinneret comprising a plurality of hole openings to produce a fiber bundle; and cooling the fiber bundle with a cooling medium having a temperature that ranges from about 0° C. to about 80° C.
    • 提供了包含高热聚合物的聚合物纤维和制备聚合物纤维的方法的各种实施方案。 在一个实施方案中,合成聚合物纤维包含大体上不含大于约100微米的外来颗粒物质的聚醚酰亚胺聚合物。 制备聚合物纤维的方法包括将包含聚醚酰亚胺的熔融聚合物熔化至约180-500℃的熔融温度以形成熔融聚合物; 通过包括多个孔开口的喷丝头将基本上不含超过约100微米的异物颗粒物质的聚醚酰亚胺通过,以产生纤维束; 并用温度为约0℃至约80℃的冷却介质冷却纤维束。