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    • 6. 发明授权
    • Thermoplastic elastomers having improved set foams made therefrom
    • 热塑性弹性体具有改进的固定泡沫
    • US06433090B1
    • 2002-08-13
    • US09771044
    • 2001-01-26
    • Maria D. EllulAbdelhadi Sahnoune
    • Maria D. EllulAbdelhadi Sahnoune
    • C08L2300
    • C08L23/16C08L21/00C08L2203/14C08L2207/04C08L2314/06C08L2666/04
    • A thermoplastic vulcanizate prepared by a process comprising the steps of dynamically vulcanizing a vulcanizable rubber within a mixture that includes from about 15 to about 90 percent by weight of the rubber and from about 10 to about 85 percent by weight of a long-chain branched thermoplastic resin, where the long-chain branched thermoplastic resin is (i) an &agr;-olefin polymer, (ii) a copolymer of an &agr;-olefin and an &agr;-&ohgr;-olefin diene, or (iii) a mixture thereof, where the long-chain branched thermoplastic resin is characterized by a weight average molecular weight from about 100,000 to about 600,000, a number average molecular weight from about 40,000 to about 200,000, a z-average molecular weight from about 400,000 to about 2,000,000, a vis from about 0.2 to about 0.95, and a melt flow rate from about 0.3 to about 30 dg/min.
    • 一种热塑性硫化橡胶,其制备方法包括以下步骤:在混合物中动态硫化可硫化的橡胶,其包括约15至约90重量%的橡胶和约10至约85重量%的长链支化热塑性塑料 树脂,其中长支链热塑性树脂是(i)α-烯烃聚合物,(ii)α-烯烃和α-ω-烯烃二烯的共聚物,或(iii)它们的混合物,其中长链 链支化热塑性树脂的特征在于重均分子量为约100,000至约600,000,数均分子量为约40,000至约200,000,z平均分子量为约400,000至约2,000,000,a
    • 9. 发明授权
    • Thermoplastic polymer compositions, methods for making the same, and articles made therefrom
    • 热塑性聚合物组合物,其制造方法和由其制成的制品
    • US08962762B2
    • 2015-02-24
    • US12598549
    • 2008-04-14
    • Periagaram S. RavishankarMaria D. Ellul
    • Periagaram S. RavishankarMaria D. Ellul
    • C08L23/14C08L23/10C08F210/06C08L23/12C08L23/16
    • C08L23/10C08F210/06C08L23/12C08L23/142C08L23/16C08L2205/02C08L2666/06C08L2666/08C08F210/16C08F2500/20
    • Provided are thermoplastic polymer compositions having a single melting point, articles made therefrom, and methods for elevating the melting point of low melting point polymers. Thermoplastic polymer compositions are composed of one or more high melting point polyolefins and a thermoplastic component that includes a low melting point polypropylene. High melting point polyolefins are composed of a stereoregular polypropylene having a tacticity similar to the low melting point polypropylene. The low melting point polypropylene includes, for example, propylene homopolymers and copolymers composed of propylene and one or more comonomers. Thermoplastic polymer compositions may also optionally contain any of the various additives commonly used in such polymer compositions, such as for example oils, etc. In one embodiment, thermoplastic polymer compositions are thermoplastic elastomer compositions that include an elastomeric component composed of an elastomer or rubber. The elastomeric component may be substantially or partially crosslinked to form a thermoplastic vulcanizate.
    • 提供具有单一熔点的热塑性聚合物组合物,由其制成的制品,以及用于提高低熔点聚合物熔点的方法。 热塑性聚合物组合物由一种或多种高熔点聚烯烃和包含低熔点聚丙烯的热塑性组分组成。 高熔点聚烯烃由具有类似于低熔点聚丙烯的立构规整度的立体规则聚丙烯构成。 低熔点聚丙烯包括例如由丙烯和一种或多种共聚单体组成的丙烯均聚物和共聚物。 热塑性聚合物组合物还可任选地含有通常用于这种聚合物组合物,例如油等中的任何各种添加剂。在一个实施方案中,热塑性聚合物组合物是热塑性弹性体组合物,其包括由弹性体或橡胶组成的弹性体组分。 弹性体组分可以基本上或部分地交联以形成热塑性硫化橡胶。