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1.
公开(公告)号:US06849676B1
公开(公告)日:2005-02-01
申请号:US09554736
申请日:1999-01-08
摘要: Inorganic salts are generated in the production process of metal salts, such as sulfonates, sulfates and phosphates. When such metal salts containing inorganic salts are added as an antistatic agent to a polymer for producing polyurethane fiber, the inorganic salts cause fiber breakage or pack choking in fiber extrusion process. In addition, such antistatic agents are highly hygroscopic and contain trace of water. When such an antistatic agent is added to the material for polymerizing polyurethane, the alcohol and water in the agent react with isocyanate to result in lowered degree of polymerization and generation of oligomer. Such polyurethane polymer is spun into fiber of low elongation and tenacity. The material for polyurethane elastic fibers of the present invention comprises a mixture of 5 to 95 weight percent of at least one of the above-mentioned antistatic agents and 95 to 5 weight percent of a isocyanate-free starting material for elastic fibers, and eliminates the above troubles.
摘要翻译: 在金属盐如磺酸盐,硫酸盐和磷酸盐的生产过程中产生无机盐。 当将这种含有无机盐的金属盐作为抗静电剂加入到用于生产聚氨酯纤维的聚合物中时,无机盐在纤维挤出过程中引起纤维断裂或包装窒息。 此外,这种抗静电剂是高吸湿性的并含有痕量的水。 当将这种抗静电剂添加到用于聚合聚氨酯的材料中时,试剂中的醇和水与异氰酸酯反应,导致低聚合度和低聚物的产生。 这种聚氨酯聚合物被纺成低伸长率和韧性的纤维。 本发明的聚氨酯弹性纤维的材料包含5〜95重量%的上述抗静电剂中的至少一种和95〜5重量%的无异氰酸酯的弹性纤维原料的混合物, 以上烦恼