Impact resistant polyolefin compositions
    1.
    发明授权
    Impact resistant polyolefin compositions 有权
    耐冲击聚烯烃组合物

    公开(公告)号:US06441094B1

    公开(公告)日:2002-08-27

    申请号:US09831712

    申请日:2001-05-14

    IPC分类号: C08L2300

    摘要: Polyolefin compositions comprising (percent by weight) A) 60%-95% of a crystalline polypropylene component having a Melt Flow Rate (MFRA) value of from 2.5 to 50 g/10 min. and containing from 20% to 80% of a fraction AI) having MFRI from 0.5 to 8 g/10 min., and from 20% to 80% of a fraction AII); B) 5%-40% of a copolymer of ethylene with one or more C4-C10 &agr;-olefin(s) containing from 10 to 40% of said C4-C10 &agr;-olefin(s); the ratio MFRA/MFRI being from 2 to 25; the percentages of A) and B) being referred to the sum of A) and B), and the percentages of AI) and AII) being referred to the sun of AI) and AII).

    摘要翻译: 包含(重量%)A)60%-95%的熔体流动速率(MFRA)值为2.5至50g / 10min的结晶聚丙烯组分的聚烯烃组合物。 并含有20%至80%的MFR 1为0.5至8g / 10min的级分AI)和20%至80%的级分AII); B)乙烯与一种或多种含有10至40%所述C 4 -C 10α-烯烃的C 4 -C 10α-烯烃的共聚物的5%-40%; MFRA / MFRI的比例为2至25; A)和B)的百分比被称为A)和B)的总和,AI)和AII的百分比被称为AI的太阳)和AII)。

    Crystalline polymers of propylene having improved processability in the molten state and process for their preparation
    2.
    发明授权
    Crystalline polymers of propylene having improved processability in the molten state and process for their preparation 失效
    丙烯的结晶聚合物在熔融状态下具有改进的加工性能及其制备方法

    公开(公告)号:US07332556B2

    公开(公告)日:2008-02-19

    申请号:US11385711

    申请日:2006-03-22

    IPC分类号: C08F110/06

    摘要: Crystalline polymers and copolymers of propylene having total MIL values>2 g/10 minutes, total [η] values in tetrahydronaphthalene at 135° C.≦2.8 dl/g, mW/MN values>20, a fraction insoluble in xylene at 25° C.≧94, and including from 10 to 60% by weight of a fraction (A) having [η]≧2.6, are prepared by way of sequential polymerization in at least two stages, in the presence of a particular Ziegler-Natta catalysts supported on magnesium halides. These polymers have high melt strength, high mechanical properties, and are particularly adequate for the manufacture of articles by using various conversion technologies, such as for example extrusion in thin sheets to be subjected to thermoforming, as well as for injection molding, and blow molding.

    摘要翻译: 总共MIL值> 2g / 10分钟的丙烯结晶聚合物和共聚物,四氢化萘在135℃时的总η= 2.8dl / g,mW / MN值> 20,在25℃下不溶于二甲苯的级分 °C = 94,并且包括10至60重量%的具有η= 2.6的级分(A),通过在至少两个阶段中的顺序聚合,在特定的齐格勒(Ziegler)的存在下制备 -Natta催化剂负载在卤化镁上。 这些聚合物具有高熔体强度,高机械性能,并且特别适用于通过使用各种转化技术制造制品,例如在薄片中挤出以进行热成型,以及用于注射成型和吹塑 。

    Crystalline polymers of propylene having improved processability in the molten state and process for their preparation
    3.
    发明申请
    Crystalline polymers of propylene having improved processability in the molten state and process for their preparation 失效
    丙烯的结晶聚合物在熔融状态下具有改进的加工性能及其制备方法

    公开(公告)号:US20060160963A1

    公开(公告)日:2006-07-20

    申请号:US11385711

    申请日:2006-03-22

    IPC分类号: C08G85/00

    摘要: Crystalline polymers and copolymers of propylene having total MIL values>2 g/10 minutes, total [η] values in tetrahydronaphthalene at 135° C.≦2.8 dl/g, Mw/Mn values>20, a fraction insoluble in xylene at 25° C.≧94, and including from 10 to 60% by weight of a fraction (A) having [η]≧2.6, are prepared by way of sequential polymerization in at least two stages, in the presence of a particular Ziegler-Natta catalysts supported on magnesium halides. These polymers have high melt strength, high mechanical properties, and are particularly adequate for the manufacture of articles by using various conversion technologies, such as for example extrusion in thin sheets to be subjected to thermoforming, as well as for injection molding, and blow molding.

    摘要翻译: 总共MIL值> 2g / 10分钟的丙烯的结晶聚合物和共聚物,四氢化萘在135℃下的总η= 2.8dl / g,Mw / Mn值> 20,在25℃下不溶于二甲苯的级分 °C = 94,并且包括10至60重量%的具有η= 2.6的级分(A),通过在至少两个阶段中的顺序聚合,在特定的齐格勒(Ziegler)的存在下制备 -Natta催化剂负载在卤化镁上。 这些聚合物具有高熔体强度,高机械性能,并且特别适用于通过使用各种转化技术制造制品,例如在薄片中挤出以进行热成型,以及用于注射成型和吹塑 。

    Crystalline polymers of propylene having improved processability in the molten state and process for their preparation
    4.
    发明授权
    Crystalline polymers of propylene having improved processability in the molten state and process for their preparation 失效
    丙烯的结晶聚合物在熔融状态下具有改进的加工性能及其制备方法

    公开(公告)号:US07074871B2

    公开(公告)日:2006-07-11

    申请号:US10361569

    申请日:2003-02-11

    IPC分类号: C08F110/06

    摘要: Crystalline polymers and copolymers of propylene having total MIL values>2 g/10 minutes, total [η] values in tetrahydronaphthalene at 135° C.≦2/8 dl/g, Mw/Mn values>20, a fraction insoluble in xylene at 25° C.≧94, and including from 10 to 60% by weight of a fraction (A) having [η]≧2.6, are prepared by way of sequential polymerization in at least two stages, in the presence of particular Ziegler-Natta catalysts supported on magnesium halides. These polymers have high melt strength, high mechanical properties, and are particularly adequate for the manufacture of articles by using various conversion technologies, such as for example extrusion in thin sheets to be subjected to thermoforming, as well as for injection molding, and blow molding.

    摘要翻译: 总共MIL值> 2g / 10分钟的丙烯的结晶聚合物和共聚物,在四氢化萘中135℃时的总η= 2 / 8dl / g,Mw / Mn值> 20,不溶于二甲苯的级分 在25℃下,≥94,并且包括10至60重量%的具有η= 2.6的级分(A),通过在至少两个阶段中的顺序聚合制备,在特定的存在下 齐格勒 - 纳塔催化剂负载在卤化镁上。 这些聚合物具有高熔体强度,高机械性能,并且特别适用于通过使用各种转化技术制造制品,例如在薄片中挤出以进行热成型,以及用于注射成型和吹塑 。

    Multistep Process For Preparing Heterophasic Propylene Copolymers
    6.
    发明申请
    Multistep Process For Preparing Heterophasic Propylene Copolymers 审中-公开
    用于制备异相丙烯共聚物的多步法

    公开(公告)号:US20070299208A1

    公开(公告)日:2007-12-27

    申请号:US10571403

    申请日:2004-08-04

    IPC分类号: C08F297/08 C08F2/00 C08F4/643

    摘要: A multistage process comprising the step of polymerizing propylene in the presence of a catalysts system, comprising one or more metallocene compound of formula (I): wherein M is an atom of a transition metal; p is an integer from 0 to 3, X, same or different, is a hydrogen atom, a halogen atom, or a hydrocarbon group; L is a divalent bridging R1 and R2, are C1-C20-alkyl radicals; T, equal to or different from each other, is a moiety of formula (IIb) or (IIa): wherein R3, R4, R5, R6, R7, R3′, R4′, R5′, R6′, R7′, are hydrogen atoms or hydrocarbon groups; with the proviso that at least one among R3, R4, R5, R6, R7 is different from hydrogen; R11 is a hydrogen atom or a hydrocarbon group; R8, R9 and R10, are hydrogen atoms or hydrocarbon groups; and further comprising the step of contacting, under polymerization conditions, in a gas phase, ethylene and one or more comonomers. Where the amount of the polymer obtained in the first step ranges from 4% by weight and 20% by weight, extremes excluded, of the polymer obtained in the whole process.

    摘要翻译: 一种多级方法,包括在催化剂体系存在下聚合丙烯的步骤,所述催化剂体系包含一种或多种式(I)的茂金属化合物:其中M是过渡金属的原子; p为0〜3的整数,X相同或不同,为氢原子,卤素原子或烃基; L是二价桥连R 1和R 2是C 1 -C 20 - 烷基; T为相同或不同的式(IIb)或(IIa)的部分:其中R 3,R 4,R 5, R SUP,R 6,R 7,R 3,S 4,R 4, 5',R 6',R 7'是氢原子或烃基; 条件是R 3,R 4,R 5,R 6,R 6和R 6中至少有一个, SUP> 7 不同于氢; R 11是氢原子或烃基; R 9,R 9和R 10是氢原子或烃基; 并且还包括在聚合条件下在气相中接触乙烯和一种或多种共聚单体的步骤。 当在第一步骤中获得的聚合物的量为4重量%且20重量%时,排除了在整个过程中获得的聚合物的极限。

    Polyolefin composition having a high balance of stiffness and impact strength
    7.
    发明授权
    Polyolefin composition having a high balance of stiffness and impact strength 有权
    具有高刚度和冲击强度平衡的聚烯烃组合物

    公开(公告)号:US06395832B1

    公开(公告)日:2002-05-28

    申请号:US09582599

    申请日:2000-06-28

    IPC分类号: C08L2310

    摘要: A polyolefin composition comprising (percentage by weight): (A) from 40 to 60% of a broad molecular weight distribution propylene polymer (component A) having a polydispersity index from 5 to 15 and melt flow rate of from 80 to 200 g/10 min (according to ASTM-D 1238, condition L); and (B) from 40 to 60% of a partially xylene-insoluble olefin polymer rubber (component B) containing at least 65% by weight of ethylene; the IVS/IVA ratio between the intrinsic viscosity (IVS) of the portion soluble in xylene of the polyolefin composition at room temperature and the intrinsic viscosity (IVA) of component (A) ranging from 2 to 2.5, both values on intrinsic viscosity being measured in tetrahydronaphthalene at 135° C. Said composition finds application in automotive field.

    摘要翻译: 包含(重量百分比)的聚烯烃组合物:(A)40-60%的分子量分布多的丙烯聚合物(组分A),其多分散指数为5至15,熔体流动速率为80至200g / 10 min(根据ASTM-D 1238,条件L); 和(B)含有至少65重量%乙烯的部分二甲苯不溶性烯烃聚合物橡胶(组分B)的40至60% 在室温下可溶于聚烯烃组合物的二甲苯的部分的特性粘度(IVS)与组分(A)的特性粘度(IVA)在2至2.5之间的IVS / IVA比,测量的特性粘度值 在四氢萘中在135℃。所述组合物可用于汽车领域。

    Multistep Process for Preparing Heterophasic Propylene Copolymers
    8.
    发明申请
    Multistep Process for Preparing Heterophasic Propylene Copolymers 审中-公开
    用于制备异相丙烯共聚物的多步法

    公开(公告)号:US20070276095A1

    公开(公告)日:2007-11-29

    申请号:US10571404

    申请日:2004-08-04

    IPC分类号: C08L23/04

    摘要: A multistage process for obtaining an heterophasic propylene polymer comprising the following steps: step a) contacting under polymerization conditions propylene and optionally ethylene or one or more alpha olefins in the presence of a catalysts system, supported on a porous organic polymer, comprising: ii) one or more metallocene compounds of formula (I) wherein: M is an atom of a transition metal; p is an integer from 0 to 3; X, same or different, is a hydrogen atom, a halogen atom, or a hydrocarbon group; L is a divalent bridging group; R1, is a linear or branched, saturated or unsaturated C1-C20-alkyl radical; R2 is a branched C1-C20alkyl radical; T, equal to or different from each other, is a moiety of formula (IIIa) or (IIIb): wherein: the atom marked with the symbol * bonds the atom marked with the same symbol in the compound of formula (I); R5-R13, equal to or different from each other, are hydrogen atoms or hydrocarbon groups; ii) an alumoxane or a compound capable of forming an alkyl metallocene cation; and optionally iii) an organo aluminium compound; step b) contacting, under polymerization conditions, in a gas phase, ethylene and one or more alpha olefins and optionally a non-conjugated diene, in the presence of the polymer obtained in step a) and optionally in the presence of an additional organo aluminium compound.

    摘要翻译: 用于获得多相丙烯聚合物的多阶段方法包括以下步骤:步骤a)在负载在多孔有机聚合物上的催化剂体系存在下,在聚合条件下使丙烯和任选的乙烯或一种或多种α-烯烃接触,包括:ii) 一种或多种式(I)的茂金属化合物,其中:M是过渡金属的原子; p是0至3的整数; X相同或不同,是氢原子,卤素原子或烃基; L是二价桥基; R 1是直链或支链饱和或不饱和的C 1 -C 20 - 烷基; R 2是支链C 1 -C 20烷基; T是相同或不同的,是式(IIIa)或(IIIb)的部分:其中:用符号*标记的原子与式(I)化合物中与相同符号标记的原子键合; R 5相同或不同,为氢原子或烃基; ii)铝氧烷或能够形成烷基茂金属阳离子的化合物; 和任选地iii)有机铝化合物; 步骤b)在聚合条件下,在步骤a)中获得的聚合物存在下,任选地在另外的有机铝存在下,在气相乙烯和一种或多种α-烯烃和任选的非共轭二烯中, 复合。