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    • 1. 发明授权
    • Modified polypropylene and process for producing same
    • 改性聚丙烯及其制备方法
    • US06887944B2
    • 2005-05-03
    • US10608546
    • 2003-06-30
    • Hideaki WakabayashiHiroyuki OzakiKunihiko ImanishiTakeshi IshiharaMasatoshi HoriiSatoshi Ueki
    • Hideaki WakabayashiHiroyuki OzakiKunihiko ImanishiTakeshi IshiharaMasatoshi HoriiSatoshi Ueki
    • C08F8/00C08F255/02
    • C08F255/02C08F220/00
    • A modified polypropylene which is a polypropylene having a value of racemic diad fraction [r] in a specific range and modified with a specific compound, e.g., (meth)acrylic acids, and their derivatives or styrene derivatives to have well-balanced properties of affinity for polypropylene-based materials, thermal stability, and high solubility in organic solvents; and a process for producing same. More particularly, the modified polypropylene which is a polypropylene having a value of racemic diad fraction [r] of 0.51 to 0.88, determined by 13C-NMR analysis, and chemically modified with a compound serving as a modifier, e.g., (meth)acrylic acids, and their derivatives or styrene derivatives; and the process for producing the modified polypropylene, wherein the polypropylene having a value of racemic diad fraction [r] in the above range is reacted with at least one type of the compound serving as the modifier in the presence of a radical initiator.
    • 改性聚丙烯是具有特定范围外消旋二单元组分[r]值并用特定化合物例如(甲基)丙烯酸及其衍生物或苯乙烯衍生物改性的聚丙烯,以具有良好平衡的亲和性 用于聚丙烯基材料,热稳定性和在有机溶剂中的高溶解度; 及其制造方法。 更具体地说,作为聚丙烯的改性聚丙烯,通过13 C-NMR分析测定的外消旋二单元组分[r]的值为0.51〜0.88,并用作为改性剂的化合物进行化学改性 ,例如(甲基)丙烯酸及其衍生物或苯乙烯衍生物; 和改性聚丙烯的制造方法,其中在上述范围内具有外消旋二单元组分[r]值的聚丙烯与自由基引发剂的存在下与至少一种用作改性剂的化合物反应。
    • 7. 发明授权
    • Polypropylene resin composition
    • 聚丙烯树脂组合物
    • US5621046A
    • 1997-04-15
    • US499908
    • 1995-07-11
    • Kunio IwanamiMasatoshi OhkuraSatoshi UekiShigeyuki TokiTakeyoshi NishioTakao Nomura
    • Kunio IwanamiMasatoshi OhkuraSatoshi UekiShigeyuki TokiTakeyoshi NishioTakao Nomura
    • C08K7/14C08L23/08C08L23/12C08L23/16C08L53/00C08L23/00
    • C08L23/12C08K7/14C08L2205/03C08L2205/035C08L23/0815C08L23/16C08L53/00
    • A polypropylene resin composition including (A) 50-90 parts by weight of a polypropylene resin including (a) 3-30 weight % of stereoblock polypropylene having a weight-average molecular weight of 5,000-1,000,000, a percentage of five continuous propylene monomer units in which all propylene bonds are meso bonds and a percentage of five continuous propylene monomer units in which all propylene bonds are racemic bonds being 70% or more and 5% or more, respectively relative to the all propylene bonds, and (b) 70-97 weight % of an ultra-high stereospecific polypropylene having a melt flow rate of 0.1-1,000 g/10 minutes, an average meso chain length Nm calculated from a triad percentage determined from .sup.13 C-NMR spectrum by the following formula of Nm=2[mm]/[mr]+1, wherein [mm] is (isotactic triad/total triad).times.100 (%) and [mr] is (heterotactic triad/total triad).times.100 (%), meeting a relation of Nm>250+29.5 log (MFR), and (B) 50-10 parts by weight of an olefinic rubber and/or a polyolefin other than (A).
    • 一种聚丙烯树脂组合物,其包含(A)50-90重量份的聚丙烯树脂,其包含(a)3-30重量%的重均分子量为5,000-1,000,000的立构嵌段聚丙烯,五个连续丙烯单体单元的百分比 其中所有丙烯键均为内消旋键,其中所有丙烯键为外消旋键的五个连续丙烯单体单元的百分比相对于全部丙烯键分别为70%以上且5%以上,(b)70〜 97重量%的熔体流动速率为0.1-1,000g / 10分钟的超高立体定向聚丙烯,由根据13 C-NMR光谱由下式Nm / 2确定的三单元组百分比计算的平均内消旋链长度Nm: mm] / [mr] +1,其中[mm]为(全同立构三单元组/总三元组)×100(%),[mr]为(异质三单元组/总三元组)×100(%),满足Nm> 29.5log(MFR)和(B)50-10重量份的烯烃橡胶和/或其它聚烯烃 比(A)。