Low temperature impact resistant, easily flowing, thermoplastic
polyurethane elastomer compositions, a process for their preparation
and their use
    1.
    发明授权
    Low temperature impact resistant, easily flowing, thermoplastic polyurethane elastomer compositions, a process for their preparation and their use 失效
    耐低温冲击,易流动,热塑性聚氨酯弹性体组合物,其制备方法及其用途

    公开(公告)号:US5331044A

    公开(公告)日:1994-07-19

    申请号:US477034

    申请日:1990-02-07

    CPC分类号: C08K7/04 C08L75/04

    摘要: The present invention deals with low temperature impact resistant, easily flowing, thermoplastic polyurethane elastomer compositions, comprising:A) 5-95 parts by weight of at least one thermoplastic polyurethane elastomer (A) having a Shore A hardness less hah 95; andB) 95-5 parts by weight of at least one thermoplastic polyurethane elastomer (B) having a Shore A hardness greater than 98, whereby the parts by weight of (A) and (B) total 100 parts by weight; andC) 0-60 weight percent based on the weight of (A) and (B) of a reinforcing filler.The products are prepared by melting together polyurethane elastomers (A) and (B) at temperatures of from 140.degree.-250.degree. C., preferably in an extruder, and are most preferred for the preparation of ski boots and injection molded articles for motor vehicles.

    摘要翻译: 本发明涉及低温耐冲击,易流动的热塑性聚氨酯弹性体组合物,其包含:A)5-95重量份的至少一种肖氏A硬度低于95的热塑性聚氨酯弹性体(A); 和B)95-5重量份的至少一种肖氏A硬度大于98的热塑性聚氨酯弹性体(B),其中(A)和(B)的重量份总共为100重量份; 和C)基于增强填料的(A)和(B)的重量为0-60重量%。 产物通过将聚氨酯弹性体(A)和(B)在140-250℃的温度,优选在挤出机中熔融在一起制备,并且最优选用于制备用于机动车辆的滑雪靴和注塑制品 。