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    • 9. 发明授权
    • Elastomeric filament and its woven fabric
    • 弹性丝及其机织织物
    • US5106678A
    • 1992-04-21
    • US632034
    • 1990-08-30
    • Ismat A. Abu-Isa
    • Ismat A. Abu-Isa
    • B60N2/70D01F6/84
    • D01F6/84B60N2/7094Y10T428/249921Y10T428/2913Y10T428/298Y10T442/183Y10T442/3008
    • A woven mat of oriented elastomeric filaments wherein the filaments are spun from a thermoplastic elastomeric material selected from the group consisting of a block copolymer of polybutylene terephthalate and polytetramethylene glycol, a block copolymer of polybutylene terephthalate/polybutylene isophthalate and polyethylene glycol/polypropylene glycol, a block copolymer of polybutylene terephthalate/polyhexene terephthalate and polytetramethylene glycol, and a block copolymer of polyurethane and polytetramethylene glycol, the mole fraction of the polybutylene terephthalate, polybutylene terephthalate/polybutylene isophthalate and polybutylene terephthalate/polyhexene terephthalate in the block copolymers is less than 0.5, the elastomeric filament is further oriented after the spinning by stretching at temperatures between 20.degree. C. to 120.degree. C. to a draw ratio between 5 to 7 such that the oriented filament exhibits a two-stage low tensile modulus and high tensile modulus behavior when tested in accordance with ASTM D-638 tensile test in such a way that the high modulus is at least 2 times greater than the low modulus.
    • 一种定向弹性丝的编织垫,其中长丝由选自聚对苯二甲酸丁二醇酯和聚四亚甲基二醇的嵌段共聚物,聚对苯二甲酸丁二醇酯/聚对苯二甲酸丁二醇酯和聚乙二醇/聚丙二醇的嵌段共聚物, 聚对苯二甲酸丁二醇酯/聚对苯二甲酸己烯酯和聚四亚甲基二醇的嵌段共聚物,聚氨酯和聚四亚甲基二醇的嵌段共聚物,嵌段共聚物中聚对苯二甲酸丁二醇酯,聚对苯二甲酸丁二醇酯/聚对苯二甲酸丁二醇酯和聚对苯二甲酸丁二醇酯的摩尔分数小于0.5, 通过在20℃至120℃的温度下拉伸至5至7之间的拉伸比,使纺丝后的弹性体丝进一步取向,使得取向的长丝呈现两阶段低拉伸模量和高拉伸模量行为 n按照ASTM D-638拉伸试验进行测试,使得高模量是低模量的至少2倍。