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    • 10. 发明授权
    • Thermoplastic vulcanizate composition, method of producing the same, and articles made therefrom
    • 热塑性硫化橡胶组合物,其制造方法和由其制成的制品
    • US09309396B2
    • 2016-04-12
    • US13991531
    • 2010-12-30
    • Yabin SunMorgan M. HughesXiangyang TaiArnis U. PaeglisGary R. Marchand
    • Yabin SunMorgan M. HughesXiangyang TaiArnis U. PaeglisGary R. Marchand
    • C08L23/16C08L23/26C08K5/00
    • C08L23/26C08K5/0025C08L23/16C08L2205/02C08L2205/03C08L2205/22C08L2312/00C08L23/142C08L23/12
    • A thermoplastic vulcanizate composition comprising from 5 wt % to 95 wt %, based on the total weight of the thermoplastic vulcanizate composition, of a first component comprising a first propylene-based polymer selected from the group consisting of (i) propylene/α-olefin copolymers comprising from 1 to 20 wt % α-olefin and characterized by a g′ ratio of less than 1, measured at interpolymer number average molecular weight (Mn), an MFR (2.16 kg @ 230° C.) greater than or equal to 0.01, a density greater than or equal to 0.850 g/cc, and a molecular weight distribution, Mw/Mn, less than or equal to 3.5, and (ii) combinations thereof; and from 5 wt % to 95 wt %, based on the total weight of the thermoplastic vulcanizate composition, of a second component selected from the group consisting of curable or vulcanizable rubbers, having a density from 0.85 to 0.88 g/cc, I2 from 0.001 to 5 g/10 min, and a Mooney viscosity from 5 to 400, and combinations thereof; wherein at least one of the rubbers is vulcanizable; wherein the thermoplastic vulcanizate composition has a tensile strength at break of greater than or equal to 8 MPa and tear strength at 23° C. of at least 190 lb-f/in. is provided. Methods of making the composition and articles made from the composition are also provided.
    • 一种热塑性硫化胶组合物,其包含基于热塑性硫化橡胶组合物总重量的5重量%至95重量%的第一组分,其包含第一丙烯类聚合物,其选自(i)丙烯/α-烯烃 共聚物,其包含1至20重量%的α-烯烃,并且以共聚体数均分子量(Mn),MFR(2.16kg @ 230℃)测量的Ag'比小于1,大于或等于0.01 ,密度大于或等于0.850g / cc,分子量分布Mw / Mn小于或等于3.5,和(ii)它们的组合; 和5重量%至95重量%,基于热塑性硫化橡胶组合物的总重量,选自可固化或可硫化橡胶的第二组分,其密度为0.85至0.88g / cc,I2为0.001 至5g / 10min,门尼粘度为5至400,及其组合; 其中所述橡胶中的至少一种是可硫化的; 其中所述热塑性硫化橡胶组合物的断裂拉伸强度大于或等于8MPa,并且在23℃下的撕裂强度为至少190lb-f / in。 被提供。 还提供了由组合物制备组合物和制品的方法。