Crystalline ethylene-propylene copolymer with ethylene copolymer(s)
and/or alkenyl aromatic-grafted rubber
    21.
    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
    22.
    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)。

    Propylene polymer ethylene/olefin rubber and polyethylene block copolymer
    23.
    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。

    Propylene-ethylene copolymer composition and process for producing the
same
    25.
    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。

    Polypropylene composition
    26.
    发明授权
    Polypropylene composition 失效
    聚丙烯组成

    公开(公告)号:US5591795A

    公开(公告)日:1997-01-07

    申请号:US392814

    申请日:1995-02-27

    摘要: The polypropylene composition of the present invention comprises polypropylene and a rubber component, and has the following characteristics that(i) the melt flow rate (MFR: 230.degree. C., 2.16 kg load), as measured in accordance with ASTM D1238, is not less than 8 g/10 min,(ii) the flexural modulus (FM), as measured in accordance with ASTM D790, is not less than 20,000 kg/cm.sup.2,(iii) the Izod impact strength (IZ), as measured in accordance with ASTM D256, is not less than 20 kg.cm/cm,(iv) the heat deflection temperature (HDT), as measured in accordance with ASTM D648, is not lower than 135.degree. C.,(v) the dimensions of a polypropylene microcrystal in an injection molded article formed from the polypropylene composition, as measured by wide-angle X-ray diffractometry and small-angle X-ray scattering, are 5 nm-20 nm, 5 nm-20 nm and not less than 5 nm, respectively, in the directions of c-axis, a-axis and b-axis, and(vi) the rubber component is present in an injection molded article formed from the polypropylene composition as a continuous phase around the polypropylene microcrystal in the direction of injection and the direction perpendicular thereto, and the average thickness of this rubber continuous phase is in the range of from 0.5 nm-3 nm.Such a polypropylene composition as described above is excellent in rigidity and heat resistance, and also in impact resistance and toughness.

    摘要翻译: PCT No.PCT / JP94 / 01064 Sec。 371日期:1995年2月27日 102(e)1995年2月27日PCT 1994年6月30日PCT公布。 第WO95 / 01398号公报 日期1995年1月12日本发明的聚丙烯组合物包含聚丙烯和橡胶组分,并且具有以下特性:(i)熔体流动速率(MFR:230℃,2.16kg负荷),根据 ASTM D1238不低于8g / 10min,(ii)根据ASTM D790测量的挠曲模量(FM)不小于20,000kg / cm2,(iii)艾佐德冲击强度(IZ) 按照ASTM D256测量,不小于20kg.cm / cm,(iv)根据ASTM D648测量的热变形温度(HDT)不低于135℃,(v )通过广角X射线衍射法和小角度X射线散射测量由聚丙烯组合物形成的注模制品中的聚丙烯微晶的尺寸为5nm-20nm,5nm-20nm和 分别在c轴,a轴和b轴的方向上不小于5nm,和(vi)橡胶组分以注射m 由聚丙烯组合物形成的老化制品作为注射方向和垂直于其的方向在聚丙烯微晶体周围的连续相,该橡胶连续相的平均厚度在0.5nm-3nm的范围内。 这样的上述聚丙烯组合物的刚性和耐热性以及抗冲击性和韧性均优异。

    Thermoplastic polypropylene resin composition
    27.
    发明授权
    Thermoplastic polypropylene resin composition 失效
    热塑性聚丙烯树脂组合物

    公开(公告)号:US5484824A

    公开(公告)日:1996-01-16

    申请号:US448188

    申请日:1995-05-23

    CPC分类号: C08L53/00

    摘要: A thermoplastic resin composition which contains a resin composition containing a crystalline polypropylene component, an ethylene-butene-1 copolymer rubber and an ethylene-propylene copolymer rubber; a modified polypropylene; a saturated polyester resin; and an epoxy group-containing copolymer; and optionally talc exhibits high low-temperature impact strength, stiffness and Rockwell hardness and a small coefficient of linear expansion, which composition gives an injection-molded article suitably used for a bumper for automobile.

    摘要翻译: 一种热塑性树脂组合物,其含有含有结晶聚丙烯组分,乙烯 - 丁烯-1共聚物橡胶和乙烯 - 丙烯共聚物橡胶的树脂组合物; 改性聚丙烯; 饱和聚酯树脂; 和含环氧基的共聚物; 并且任选的滑石显示出高的低温冲击强度,刚度和洛氏硬度和小的线膨胀系数,该组合物给出适合用于汽车保险杠的注塑制品。

    Thermoplastic resin composition and injection molded article thereof
    29.
    发明授权
    Thermoplastic resin composition and injection molded article thereof 失效
    热塑性树脂组合物及其注塑制品

    公开(公告)号:US5723527A

    公开(公告)日:1998-03-03

    申请号:US637279

    申请日:1996-04-24

    CPC分类号: C08L53/00

    摘要: A thermoplastic resin composition which has a melt flow rate of 20 to 30 g/10 min and a flexural modulus at 23.degree. C. of 30,000 kg/cm.sup.2 or more and which comprises (A) 60 to 75% by weight of a specific crystalline polypropylene 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 0.95 to 1.15 dl/g as measured at 135.degree. C. in tetralin, (B) 2 to 8% by weight of an ethylene-butene-1 copolymer rubber, (C) 2 to 8% by weight of an ethylene-propylene copolymer rubber, (D) 10 to 20% by weight of talc having an average particle diameter of 4 .mu.m or less, and (E) 5 to 20% by weight of fibrous magnesium oxysulfate, 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 instrumental panel 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20至30g / 10min,在23℃下的弯曲模量为30,000kg / cm 2或更高,并且其包含(A)60至75重量%的特定结晶 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0.95-1.15dl / g,在135℃下在四氢化萘中测定,(B )2〜8重量%的乙烯 - 丁烯-1共聚物橡胶,(C)2-8重量%的乙烯 - 丙烯共聚物橡胶,(D)10〜20重量%的平均粒径 (E)5〜20重量%的纤维状氧硫酸镁,以及热塑性树脂组合物的注塑制品,所述热塑性树脂组合物满足作为器具材料所需的冲击强度和刚性 具有短的成型周期和良好的表面质量。

    Propylene polymer composition
    30.
    发明授权
    Propylene polymer composition 失效
    丙烯聚合物组成

    公开(公告)号:US5567759A

    公开(公告)日:1996-10-22

    申请号:US427623

    申请日:1995-04-21

    IPC分类号: C08K3/34 C08L53/00

    CPC分类号: C08L53/00 C08K3/34

    摘要: Propylene polymer compositions of the present invention comprising a specific propylene block copolymer, specific ethylene-propylene copolymer rubber, specific ethylene-propylene-diene copolymer rubber, specific ethylene-butene-1 copolymer rubber, and talc in specific proportions are provided. The propylene polymer compositions of the invention are capable of providing therefrom molded products excellent in balance between stiffness and impact resistance, and having high surface hardness with excellent scratch resistance.

    摘要翻译: 提供了包含特定丙烯嵌段共聚物,特定乙烯 - 丙烯共聚物橡胶,特定乙烯 - 丙烯 - 二烯共聚物橡胶,特定乙烯 - 丁烯-1共聚物橡胶和特定比例的滑石的本发明丙烯聚合物组合物。 本发明的丙烯聚合物组合物能够提供刚性和抗冲击性之间的平衡优异的模塑制品,并且具有高的表面硬度和优异的耐擦伤性。