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    • 34. 发明授权
    • Laminated products of olefinic thermoplastic elastomer and constructional gaskets
    • 烯烃热塑弹性体和建筑垫片的层压产品
    • US06589664B1
    • 2003-07-08
    • US09702886
    • 2000-11-01
    • Kyoko KobayashiNoboru SakamakiAkira Uchiyama
    • Kyoko KobayashiNoboru SakamakiAkira Uchiyama
    • B32B2508
    • B32B27/32B32B27/08B32B2323/04B32B2323/10B32B2581/00B60J10/15B60J10/17C09K3/10C09K2200/0617C09K2200/062Y10T428/24198Y10T428/31909Y10T428/31913Y10T428/31917Y10T428/31924Y10T428/31931
    • The present invention relates to a laminate comprising an olefinic thermoplastic elastomer which comprises: (a) a substratum layer comprising an olefinic thermoplastic elastomer composition (A) having the following characteristics {circle around (1)} to {circle around (3)}: {circle around (1)} 9≦Y−0.43X≦27  (1)  wherein X denotes the JIS A-hardness value (a dimensionless value) of the olefinic thermoplastic elastomer composition determined according to the prescription of JIS K6301 and Y represents the compression set value (expressed by %) of the olefinic thermoplastic elastomer composition determined according to the prescription of JIS K6301 under a condition of 70° C. and 22 hours, {circle around (2)} a tensile strength value in the range from 5 to 30 MPa determined according to the prescription of JIS K6301 and {circle around (3)} an elongation set value of 18% or less determined according to the prescription of JIS K6301, and (b) a surface skin layer comprising an ultra high molecular weight polyolefin composition (B) having an intrinsic viscosity [&eegr;] measured in decalin at 135° C. in the range from 3.5 to 8.3 dl/g; and a constructional gasket comprising the olefinic thermoplastic elastomer composition (A).
    • 本发明涉及一种包含烯烃热塑性弹性体的层压材料,其包括:(a)包含具有以下特性的烯烃热塑性弹性体组合物(A)的基层:圆周(1至{圆周围(3: 1其中X表示根据JIS K6301的处方确定的烯属热塑性弹性体组合物的JIS A硬度值(无量纲值),Y表示根据下式确定的烯烃类热塑性弹性体组合物的压缩永久变形值(以%表示) 在70℃,22小时的条件下进行JIS K6301的处方(圆周(2根据JIS K6301的处方测定的2个拉伸强度值在5〜30MPa范围内)和{圆周(3伸长率 根据JIS K6301的处方确定的设定值为18%以下,(b)包含超高分子量聚烯烃组合物的表皮层 (B)在135℃下在十氢化萘中测得的特性粘度η在3.5至8.3dl / g的范围内; 和包含烯属热塑性弹性体组合物(A)的结构垫圈。