Propylene-ethylene copolymer composition and process for producing the
same
    1.
    发明授权
    Propylene-ethylene copolymer composition and process for producing the same 失效
    丙烯 - 乙烯共聚物组合物及其制备方法

    公开(公告)号:US6005034A

    公开(公告)日:1999-12-21

    申请号:US817850

    申请日:1997-04-30

    CPC分类号: C08F297/083 C08F210/16

    摘要: A propylene-ethylene copolymer composition is obtained which has good moldability and an excellent balance of rigidity, toughness, and impact-strength. The composition has a melt flow rate of 10 to 300 g/10 minutes and is obtained by producing 60 to 95% by weight, based on the weight of whole polymer, of a propylene polymer having a melt flow rate (ASTM D1238) in the range of 100 to 1,000 g/10 minutes and having a ratio (Cf) of integrated values of the propylene polymer dissolved in o-dichlorobenzene at a temperature of lower than 112.degree. C., and a temperature of 112.degree. C. or higher, respectively, of 0.5 or less, by carrying out polymerization of propylene in the presence of a highly stereoregular catalyst and hydrogen in a polymerization step (I), and then producing 5 to 40% by weight, based on the weight of whole polymer, of an ethylene-propylene copolymer by feeding ethylene and propylene to the propylene polymer to react so that the content of ethylene becomes 30 to 80% by weight. Also provided is a propylene-ethylene copolymer composition comprising the composition mentioned above and a .alpha.-crystal and/or .beta.-crystal nucleator added therewith.

    摘要翻译: PCT No.PCT / JP96 / 02449 Sec。 371日期1997年04月30日 102(e)1997年4月30日PCT PCT 1996年8月30日PCT公布。 公开号WO97 / 08218 PCT 日期1997年3月6日获得了具有良好的成型性和刚性,韧性和冲击强度优异平衡的丙烯 - 乙烯共聚物组合物。 该组合物的熔体流动速率为10-300g / 10分钟,并且通过以全聚合物的重量计60至95重量%的丙烯聚合物的熔体流动速率(ASTM D1238)在 范围为100〜1000g / 10分钟,并且在低于112℃的温度和112℃或更高的温度下,溶解在邻二氯苯中的丙烯聚合物的积分值的比率(Cf) 分别为0.5以下,通过在聚合工序(I)中,在高度立体规则的催化剂和氢的存在下进行丙烯的聚合,然后以全聚合物的重量为基准计5〜40重量% 通过将乙烯和丙烯进料至丙烯聚合物进行反应以使乙烯含量为30至80重量%的乙烯 - 丙烯共聚物。 还提供了包含上述组合物和加入其中的α-结晶和/或β-晶核成核剂的丙烯 - 乙烯共聚物组合物。

    Propylene polymer ethylene/olefin rubber and polyethylene block copolymer
    3.
    发明授权
    Propylene polymer ethylene/olefin rubber and polyethylene block copolymer 失效
    丙烯聚合物乙烯/烯烃橡胶和聚乙烯嵌段共聚物

    公开(公告)号:US5708083A

    公开(公告)日:1998-01-13

    申请号:US799988

    申请日:1997-02-13

    摘要: A polyolefin resin composition is disclosed which comprises (a) a crystalline propylene polymer in an amount of 40% or more to less than 95% by weight, (b) an ethylene/.alpha.-olefin rubber in an amount of from 5 to 40% by weight, and (c) a linear or branched specified block copolymer in an amount of from 0.1 to 20% by weight containing a polyethylene block segment A having a melting temperature as measured with a differential scanning calorimeter of from 80.degree. to 120.degree. C. and an ethylene/.alpha.-olefin copolymer block segment B, the total content of components (a), (b), and (c) being 100% by weight, which composition has excellent dispersibility of the rubber used, so that moldings having an excellent balance between rigidity and impact resistance are obtained therefrom, and is hence suitable for use in the field of moldings required to have rigidity and impact resistance.

    摘要翻译: 公开了一种聚烯烃树脂组合物,其包含(a)40重量%以上至小于95重量%的结晶丙烯聚合物,(b)5-40重量%的乙烯/α-烯烃橡胶, ,和(c)含有0.1〜20重量%的直链或支链规定的嵌段共聚物,其含有聚乙烯嵌段段A,其具有用差示扫描量热计测定的熔融温度为80-120℃ 和乙烯/α-烯烃共聚物嵌段链段B,组分(a),(b)和(c)的总含量为100重量%,该组合物具有优异的所用橡胶的分散性,使得具有 从而获得刚性和抗冲击性之间的良好平衡,因此适用于要求具有刚性和抗冲击性的模制品领域。

    Crystalline ethylene-propylene copolymer with ethylene copolymer(s)
and/or alkenyl aromatic-grafted rubber
    4.
    发明授权
    Crystalline ethylene-propylene copolymer with ethylene copolymer(s) and/or alkenyl aromatic-grafted rubber 失效
    具有乙烯共聚物和/或链烯基芳香族接枝橡胶的结晶乙烯 - 丙烯共聚物

    公开(公告)号:US5914363A

    公开(公告)日:1999-06-22

    申请号:US637280

    申请日:1996-04-24

    摘要: A thermoplastic resin composition which has a melt flow rate of 25 to 30 g/10 min and a flexural modulus at 23.degree. C. of 20,000 kg/cm.sup.2 or more and which comprises (1) 78 to 87% by weight of a specific crystalline polypropylene �referred to hereinafter as (A)! in which the propylene homopolymer portion has a Q value of 3.0 to 5.0, an isotactic pentad fraction of 0.975 or more and an intrinsic viscosity �.eta.! of 1.00 to 1.10 dl/g as measured at 135.degree. C. in tetralin, (2) 3 to 10% by weight of at least two specific rubber components selected from the group consisting of (B) 1 to 9% by weight of an ethylene-butene-1 copolymer rubber, (C) 1 to 9% by weight of an ethylene-propylene copolymer rubber and (D) 1 to 9% by weight of an alkenyl aromatic compound-containing rubber; and (3) 10 to 12% by weight of talc having an average particle diameter of 4 .mu.m or less, and an injection molded article of the thermoplastic resin composition, said thermoplastic resin composition satisfying the impact strength and rigidity required as a material for an interior automotive trim and having a short molding cycle and good surface quality.

    摘要翻译: 一种热塑性树脂组合物,其熔体流动速率为25至30g / 10min,在23℃下的弯曲模量为20,000kg / cm 2或更高,并且其包含(1)78至87重量%的特定结晶 聚丙烯[以下称为(A)],其中丙烯均聚物部分的Q值为3.0〜5.0,全同立构五单元组分数为0.975以上,特性粘度η为1.00〜1.10dl / g, (2)3至10重量%的至少两种选自(B)1至9重量%的乙烯 - 丁烯-1共聚物橡胶的特定橡胶组分(C )1〜9重量%的乙烯 - 丙烯共聚物橡胶和(D)1〜9重量%的含烯基芳香族化合物的橡胶; 和(3)10〜12重量%的平均粒径为4μm以下的滑石,以及热塑性树脂组合物的注射成型品,所述热塑性树脂组合物满足作为材料的材料所需的冲击强度和刚性 内部汽车装饰件,具有短的成型周期和良好的表面质量。

    Polypropylene resin composition
    5.
    发明授权
    Polypropylene resin composition 失效
    聚丙烯树脂组合物

    公开(公告)号:US5621046A

    公开(公告)日:1997-04-15

    申请号:US499908

    申请日:1995-07-11

    摘要: 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).

    摘要翻译: 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)。

    Thermoplastic polymer composition
    6.
    发明授权
    Thermoplastic polymer composition 失效
    热塑性聚合物组成

    公开(公告)号:US5374677A

    公开(公告)日:1994-12-20

    申请号:US901026

    申请日:1992-06-19

    摘要: A thermoplastic polymer composition comprising: (i) 100 parts by weight of a thermoplastic polymer component which comprises an ethylene-propylene rubber, an ethylene copolymer and a propylene polymer (including an ethylene-propylene block copolymer), and (ii) 0 to 7 parts by weight of talc, the thermoplastic polymer component being composed of, according to fractionation using o-dichlorobenzene as a solvent, component (A) which is a component soluble in the solvent at 40.degree. C., component (B) which is a component insoluble in the solvent at 40.degree. C. but soluble at 110.degree. C., and component (C) which is a component insoluble in the solvent even at 110.degree. C. in such a proportion that the total amount of the components (A) and (B) is from 50 to 70 parts by weight, the weight ratio of the component (A) to the component (B) being from 0.5 to 1.5, and the amount of the component (C) is from 50 to 30 parts by weight.

    摘要翻译: 一种热塑性聚合物组合物,其包含:(i)100重量份的包含乙丙橡胶,乙烯共聚物和丙烯聚合物(包括乙烯 - 丙烯嵌段共聚物)的热塑性聚合物组分,和(ii)0至7 滑石的重量份,热塑性聚合物组分由根据使用邻二氯苯作为溶剂的分级组成,组分(A)是在40℃下可溶于溶剂的组分,组分(B)为 组分不溶于40℃但可溶于110℃的组分(C),即使在110℃下不溶于溶剂的组分(C),组分(A )和(B)为50〜70重量份,成分(A)与成分(B)的重量比为0.5〜1.5,成分(C)的含量为50〜30重量份 重量。

    Polypropylene resin composition
    8.
    发明授权
    Polypropylene resin composition 失效
    聚丙烯树脂组合物

    公开(公告)号:US5883174A

    公开(公告)日:1999-03-16

    申请号:US680971

    申请日:1996-07-16

    CPC分类号: C08L53/00

    摘要: A polypropylene resin composition having excellent rigidity, impact resistance and formability (moldability) and thus useful for the interior parts of automobile, includes (A) a crystalline E/P block copolymer containing a fraction Ac soluble in p-xylene at room temperature and having an ethylene content of 18 to 22%; (B) a crystalline E/P block copolymer containing a fraction Bc soluble in p-xylene at room temperature and having an ethylene content of 27 to 40% and (C) talc particles having an average size of 3 to 5 .mu.m and largest size less than 20 .mu.m, in which composition, (a) the p-xylene-soluble fractions Ac and Bc are in contents As and Bs based on the total weight of the copolymers (A) and (B) and satisfying As+Bs=7 to 17% by weight and As/(A +Bs)=0.1 to 0.6; (b) an isotactic pentad fraction of propylene in each of copolymers (A) and (B) is 96% or more, and the mixture of the copolymers (A) and (B) has a MFR of 20 to 35 g/10 min at 230.degree. C. under 2160 g load; and (c) the copolymers (A) and (B) are in a total weight content of 50 to 95% and talc (C) is in a weight content of 5 to 50%.

    摘要翻译: 具有优异的刚性,耐冲击性和成型性(成型性),因此可用于汽车内部的聚丙烯树脂组合物包括(A)在室温下含有可溶于对二甲苯的馏分Ac的结晶E / P嵌段共聚物,并具有 乙烯含量为18〜22%; (B)在室温下含有可溶于对二甲苯的馏分Bc,乙烯含量为27〜40%的结晶性E / P嵌段共聚物,(C)平均粒径为3〜5μm的滑石粉末和最大 (a)对二甲苯可溶级分Ac和Bc的含量为A,Bs为基于共聚物(A)和(B)的总重量,满足As + Bs = 7〜17重量%,As /(A + Bs)= 0.1〜0.6; (b)共聚物(A)和(B)中的丙烯的全同立构五单元组分率为96%以上,共聚物(A)和(B)的混合物的MFR为20〜35g / 10分钟 在230℃,2160g负荷下; 和(c)共聚物(A)和(B)的总重量含量为50-95%,滑石(C)的重量含量为5-50%。

    Polypropylene resin composition
    9.
    发明授权
    Polypropylene resin composition 失效
    聚丙烯树脂组合物

    公开(公告)号:US5856400A

    公开(公告)日:1999-01-05

    申请号:US705215

    申请日:1996-08-29

    CPC分类号: C08L23/10 C08L53/00 C08L23/16

    摘要: A polypropylene resin composition comprising an isotactic polypropylene component, a rubber component, and an inorganic filler component, wherein (a) the melt flow rate, according to ASTM D1238, is 20 g/10 min or more, (b) the flexural modulus, according to ASTM D790, is 2300 MPa or more, (c) the Izod impact strength, according to ASTM D256, is 180 J/m or more at 23.degree. C. and 45 J/m or more at -30.degree. C., (d) the heat deformation temperature, according to ASTM D648, is 130.degree. C. or more, and (e) there is a diffraction peak unique to polypropylene of space group P21/c in the diffraction pattern measured by the wide angle X-ray diffraction method in an injection molded article of the composition formed under a quenching condition.

    摘要翻译: 包含全同立构聚丙烯组分,橡胶组分和无机填料组分的聚丙烯树脂组合物,其中(a)根据ASTM D1238的熔体流动速率为20g / 10min以上,(b)挠曲模量, 根据ASTM D790,为2300MPa以上,(c)根据ASTM D256,Izod冲击强度在23℃为180J / m以上,-30℃为45J / m以上, (d)根据ASTM D648的热变形温度为130℃以上,(e)在广角X射线衍射测定的衍射图中,存在空间群P21 / c的聚丙烯特有的衍射峰, 在淬火条件下形成的组合物的注塑制品中的X-射线衍射法。

    Thermoplastic resin composition
    10.
    发明授权
    Thermoplastic resin composition 失效
    热塑性树脂组合物

    公开(公告)号:US5852100A

    公开(公告)日:1998-12-22

    申请号:US636220

    申请日:1996-04-23

    摘要: A thermoplastic resin composition with improved low-temperature impact strength and rigidity against heat, comprising (I) 10-40% by weight of a mixture of (a) 10-50% by weight of a propylene homopolymer and/or an ethylene-propylene block copolymer (an isotactic pentad fraction of a propylene homopolymer portion being 0.98 or above) and (b) 50-90% by weight of an olefin-based copolymer rubber, said mixture having been dynamically heat treated in the presence of an organic peroxide and a crosslinking agent, (II) 20-85% by weight of a propylene homopolymer and/or an ethylene-propylene block copolymer (an isotactic pentad fraction of a propylene homopolymer portion being 0.98 or above and a melt index of the propylene homopolymer portion being 30-150 g/10 min), and (III) 5-40% by weight of an inorganic filler.

    摘要翻译: 具有改进的低温冲击强度和抗热刚性的热塑性树脂组合物,包含(I)10-40重量%的(a)10-50重量%的丙烯均聚物和/或乙烯 - 丙烯的混合物 嵌段共聚物(丙烯均聚物部分的全同立构五单元组分数为0.98以上)和(b)50-90重量%的烯烃系共聚物橡胶,所述混合物在有机过氧化物的存在下动态热处理, 交联剂(II)20-85重量%的丙烯均聚物和/或乙烯 - 丙烯嵌段共聚物(丙烯均聚物部分的全同立构五单元组分数为0.98或更高,丙烯均聚物部分的熔体指数为 30-150g / 10min)和(III)5-40重量%的无机填料。