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    • 16. 发明授权
    • Thermoplastic elastomer based on olefin and process for producing the same
    • 基于烯烃的热塑性弹性体及其制备方法
    • US06221963B1
    • 2001-04-24
    • US09340044
    • 1999-06-28
    • Kyoko KobayashiAkira Uchiyama
    • Kyoko KobayashiAkira Uchiyama
    • C08F800
    • C08L23/06C08L23/04C08L23/12C08L23/16C08L2205/02C08L2207/04C08L2666/04
    • A thermoplastic elastomer based on olefin which can be produced simply by melt-kneading 5-60% by weight of a polyethylene resin (A) together with 40-95% by weight of an ethylene/&agr;-olefin copolymer (B) with optional subsidiary component(s) before the kneaded mass is molded into a formed product, the said elastomer being capable of recycling for reclamation and exhibiting the following characteristics {circle around (1)} to {circle around (3)} namnely, 9≦Y−0.43 X≦27  (1) {circle around (1)} in which X denotes the JIS A-hardness value (a dimensionless value) of the thermoplastic elastomer based on olefin determined according to the prescription of JIS K 6301 and Y represents the permanent compressive strain value (expressed by %) of the thermoplastic elastomer based on olefin determined according to the prescription of JIS K 6301 under a condition of 70° C.×22 hours, {circle around (2)} tensile strength in the raqnge from 5 to 30 MPa and {circle around (3)} a permanent elongation of 18% or less determined according to the prescription of JIS K 6301.
    • 一种基于烯烃的热塑性弹性体,其可以简单地通过将5-60重量%的聚乙烯树脂(A)与40-95重量%的乙烯/α-烯烃共聚物(B)与任选的附属物 所述弹性体能够循环再造,并且具有以下特征(圆周(1)}到{圆周(3)}周围{圆周( 1)},其中X表示根据JIS K 6301的配方确定的基于烯烃的热塑性弹性体的JIS A硬度值(无量纲值),Y表示热塑性塑料的永久压缩应变值(以%表示) 在70℃×22小时的条件下测定的基于烯烃的烯烃弹性体,在5〜30MPa的拉伸强度({圆周(3)}周围的{圈(2)}周围) 永久伸长率为18%以下 根据JIS K 6301的处方。