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    • 10. 发明授权
    • Resin composition, gasket material and gasket integrated with metal
    • 树脂组合物,垫片材料和与金属集成的垫片
    • US06824730B2
    • 2004-11-30
    • US09784415
    • 2001-02-14
    • Naruhiko MashitaShinichi ToyosawaYouichi NishimuroYasushi ImaiTadashi UtsunomiyaIchiro AkasakaYoukou Saito
    • Naruhiko MashitaShinichi ToyosawaYouichi NishimuroYasushi ImaiTadashi UtsunomiyaIchiro AkasakaYoukou Saito
    • C08L5300
    • B32B15/08B29C45/14811B29K2705/00B29L2031/265C08L53/025Y10T428/31692Y10T428/31696C08L2666/04
    • There are disclosed a resin composition which is excellent in rubber elasticity, oil maintainability and adhesivity to a metal, and comprises a thermoplastic elastomer composition comprising a (a1) hydrogenated block copolymer which is obtained by hydrogenating a block copolymer consisting essentially of a polymer block composed principally of a vinyl aromatic compound and a polymer block composed principally of a conjugated diene compound, which has a weight average molecular weight of at least 200,000, in which the polymer block composed principally of a vinyl aromatic compound is polystyrene, and in which the content by weight of the polystyrene moiety contained in the hydrogenated block copolymer is 20 to 40%; a (b1) non-aromatic rubber-softening agent having a kinematic viscosity at 40° C. of at least 300 mm2s−1; and a (c1) modified polyolefinic resin, the resin composition having a hardness according to JIS K6253 of at most 50 degrees and a compression set according to JIS K6262 of at most 50%; a composite molded body of a metal and the thermo-plastic elastomer composition such as a gasket integrated with a metallic sheet; and processes for producing the above products.
    • 公开了一种橡胶弹性,油维持性和与金属的粘合性优异的树脂组合物,并且包括热塑性弹性体组合物,其包含(a1)氢化嵌段共聚物,其通过氢化基本上由聚合物嵌段组成的嵌段共聚物而获得, 主要是乙烯基芳族化合物和主要由共轭二烯化合物组成的聚合物嵌段,其重均分子量至少为200,000,其中主要由乙烯基芳族化合物组成的聚合物嵌段是聚苯乙烯,其中含量 的氢化嵌段共聚物中所含的聚苯乙烯部分为20〜40%。 具有至少300mm 2 s -1的在40℃下的运动粘度的(b1)非芳族橡胶软化剂; 和(c1)改性聚烯烃树脂,根据JIS K6253的硬度至多为50度,根据JIS K6262的压缩永久变形量为至多50%的树脂组合物; 金属复合成型体和热塑性弹性体组合物,例如与金属片一体化的垫圈; 以及用于生产上述产品的方法。