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    • 1. 发明申请
    • Water pipe for automobiles
    • 汽车水管
    • US20080038499A1
    • 2008-02-14
    • US11890531
    • 2007-08-07
    • Satoru OnoYoshiaki KamedaTsugunori KashimuraTakashi YamashitaHideaki Takeda
    • Satoru OnoYoshiaki KamedaTsugunori KashimuraTakashi YamashitaHideaki Takeda
    • B32B1/08
    • C08L77/06C08G69/265C08L23/0807C08L23/16C08L51/06Y10T428/139C08L2666/24C08L2666/02C08L2666/06
    • All of hydrolysis resistance, heat resistance and calcium chloride resistance as the characteristics required during use are satisfied and the moldability as the characteristic required during molding is also ensured. Further, corrugation moldability, pressure proofness, bendability and shape retainability are ensured while enabling to adopt a mono-layer structure. A water pipe for use in automobiles molded with a thermoplastic polymer composition mainly comprising a polyamide resin (I) and a polyolefin (II), in which the polyamide resin (I) is a specified polyamide 9T; the amount of terminal amino groups of the polyamide resin (I) is 60 μmol/g or more and the amount of terminal carboxyl groups of the polyamide resin (I) is 10 μmol/g or less; the polyolefin (II) contains an acid modified polyolefin and the not acid-modified polyolefin at a mass ratio of from 80:20 to 20:80 and, as a result, the amount of the acid modification is from 0.2 to 0.5 mass %; and the mass ratio of (I) and (II) is from 90:10 to 70:30.
    • 所有的耐水解性,耐热性和耐氯化钙性均得到了使用的要求,同时也保证了成型时的成型性。 此外,确保了波纹成形性,耐压性,弯曲性和形状保持性,同时能够采用单层结构。 一种用主要由聚酰胺树脂(I)和聚烯烃(II)组成的热塑性聚合物组合物成型的汽车的水管,其中聚酰胺树脂(I)是特定的聚酰胺9T; 聚酰胺树脂(I)的末端氨基的量为60mumol / g以上,聚酰胺树脂(I)的末端羧基的量为10mumol / g以下; 聚烯烃(II)含有质量比为80:20〜20:80的酸改性聚烯烃和非酸改性聚烯烃,结果,酸改性量为0.2〜0.5质量%。 (I)和(II)的质量比为90:10〜70:30。