Polymer composition
    4.
    发明申请
    Polymer composition 有权
    聚合物组成

    公开(公告)号:US20090131595A1

    公开(公告)日:2009-05-21

    申请号:US11991182

    申请日:2006-08-31

    IPC分类号: C08L23/06 C08G85/00

    摘要: A composition suitable for use in pressure pipes and pipe fittings is disclosed comprising polymer of ethylene and from 0.5 to 5 wt % of a C4-C8 alpha-olefin which has a natural density of 935-956 kg/m3, a melt index MI5 of 0.15-0.5 g/10 min, a dynamic complex viscosity at 100 rad/s and 190° C. (η100) of no more than 2500 Pa·s, a relationship between η100 and dynamic complex viscosity measured in Pa·s at 0.01 rad/s and 190° C. (η0.01) defined by the equation η0.01>115000+30. η100, and an environmental stress crack resistance as measured by a notched pipe test performed according to ISO13479:1997 on 110 mm SDR 11 pipes at 80° C. and a pressure of 9.2 bar, of greater than 1000 hours, or: wherein the C4-C8 alpha-olefin is 1-hexene or 1-octene.

    摘要翻译: 公开了一种适用于压力管道和管件的组合物,其包含乙烯聚合物和0.5至5wt%的C 8 -C 8α-烯烃,其自然密度为935-956kg / m 3,熔体指数MI5为 0.15-0.5g / 10min,100rad / s和190℃下的动态复数粘度(eta100)不超过2500Pa·s,eta100与动态复数粘度之间的关系用Pa.s在0.01rad / s和190℃(eta0.01)由等式eta0.01> 115000 + 30定义。 eta100,以及通过根据ISO13479:1997在80℃下的110mm SDR 11管和9.2巴,大于1000小时的压力下进行的缺口管试验测量的环境应力开裂抗力,或者:其中C4 -C 8α-烯烃是1-己烯或1-辛烯。

    Polyethylene pipe resins
    5.
    发明申请
    Polyethylene pipe resins 审中-公开
    聚乙烯管材树脂

    公开(公告)号:US20050234197A1

    公开(公告)日:2005-10-20

    申请号:US10512978

    申请日:2003-04-22

    摘要: A polyethylene resin comprising from 44 to 55 wt % of a high molecular weight polyethylene fraction, and from 45 to 56 wt % of a low molecular weight polyethylene fraction; the high molecular weight polyethylene fraction comprising a linear low density polyethylene having a density of from 0.913 to 0.923 g/cm3, and an HLMI of from 0.02 to 0.2 g/10 min; and the low molecular weight polyethylene fraction comprising a high density polyethylene having a density of at least 0.969 g/cm3 and an MI2 of greater than 100 g/10 min; wherein the relationship between the density D of the resin in g/cm3 and the weight fraction of the low molecular weight fraction P1 is defined by 0.055P1+0.916

    摘要翻译: 包含44-55重量%的高分子量聚乙烯部分和45-56重量%的低分子量聚乙烯部分的聚乙烯树脂; 包含密度为0.913至0.923g / cm 3的线性低密度聚乙烯和0.02至0.2g / 10min的HLMI的高分子量聚乙烯部分; 并且所述低分子量聚乙烯部分包含密度为至少0.969g / cm 3和MI 2以上大于100g / 10min的高密度聚乙烯; 其中树脂的密度D(g / cm 3)与低分子量级分P 1的重量分数之间的关系由0.055P 1 +0.916 +0.937。

    Method for polymerising ethylene
    6.
    发明授权
    Method for polymerising ethylene 失效
    聚合乙烯的方法

    公开(公告)号:US06743871B2

    公开(公告)日:2004-06-01

    申请号:US10258538

    申请日:2003-05-05

    IPC分类号: C08F444

    摘要: The invention concerns a method for producing ethylene homopolymers or copolymers comprising at least 90 mol % of units derived from ethylene which consists in: contacting in polymerising conditions, the monomers with a catalytic system including: (a) a catalytic solid comprising a metallocene of a transition metal of groups 4 to 6 of the periodic table containing at least a cyclopentadiene ligand capable of being substituted and a support, (b) at least an organoaluminium compound selected among compounds of general formula (1): AlTx(Y′)yX′z wherein: T is a hydrocarbon group containing 1 to 30 carbon atoms; Y′ is a group selected among —OR′, —SR′ and NR′R″ with R′ and R″ independently representing a hydrocarbon group containing 1 to 30 carbons atoms; X′ is a halogen atom: x verifies the relationship 0

    摘要翻译: 本发明涉及一种生产乙烯均聚物或共聚物的方法,该方法包含至少90摩尔%的衍生自乙烯的单元,其包括:在聚合条件下使单体与催化体系接触,所述催化体系包括:(a)催化固体,其包含金属茂 至少含有能被取代的环戊二烯配位体和支持体的周期表第4〜6族的过渡金属,(b)至少一种选自通式(1)的化合物中的有机铝化合物:AlT x(Y')y X' z其中:T是含有1至30个碳原子的烃基; Y'是选自-OR',-SR'和NR'R“中的基团,其中R'和R'独立地表示含有1至30个碳原子的烃基; X'是卤原子:x验证关系0

    Process for polymerizing alpha-olefins
    7.
    发明授权
    Process for polymerizing alpha-olefins 失效
    α-烯烃聚合方法

    公开(公告)号:US06495640B1

    公开(公告)日:2002-12-17

    申请号:US09523515

    申请日:2000-03-10

    IPC分类号: C08F464

    摘要: Process for polymerizing alpha-olefins, in which at least one alpha-olefin is placed in contact, under polymerizing conditions, with a catalytic system comprising (a) a solid catalyst comprising (i) a compound of a transition metal from groups 4 to 6 of the Periodic Table, containing at least one cyclopentadiene ligand which may be substituted, (ii) an activator chosen from aluminoxanes and ionizing agents, and (iii) a porous polymeric support, and (b) at least one organoaluminium compound corresponding to the general formula R3−nAl(Y′)n in which 0.9

    摘要翻译: 在聚合条件下使至少一种α-烯烃接触的α-烯烃聚合的方法,其中催化体系包括(a)固体催化剂,其包含(i)第4-6族过渡金属的化合物 包含至少一个可被取代的环戊二烯配体,(ii)选自铝氧烷和电离剂的活化剂,和(iii)多孔聚合物载体,和(b)至少一种对应于一般的有机铝化合物 式R3-nAl(Y')n,其中0.9

    Metallocenes and process for the preparation of metallocenes
    8.
    发明授权
    Metallocenes and process for the preparation of metallocenes 失效
    金属茂和金属茂制备方法

    公开(公告)号:US6087515A

    公开(公告)日:2000-07-11

    申请号:US167597

    申请日:1998-10-07

    摘要: A metallocene corresponding to the formula ##STR1## wherein M is a group 4 transition metal, each Y is, independently, selected from the group of halogen, hydrocarbyl and hydrocarbyloxy,R.sup.1, R.sup.4 are, independently, selected from the group of hydrogen, hydrocarbyl, hydrocarbyloxy,R.sup.2, R.sup.3, R.sup.5, R.sup.6, R.sup.7, R.sup.8 are, independently, selected from the group of hydrogen, hydrocarbyl, hydrocarbyloxy, with the provision that, respectively, R.sup.2 and R.sup.3, R.sup.5 and R.sup.6, R.sup.7 and R.sup.8 can be linked to each other.A process for the preparation of metallocenes comprising the following steps:(a) contacting, in a solvent, a transition metal halide of formula MX.sub.4 with an organometallic compound of formula M'R.sub.m, wherein M is a group 4 transition metal, X is a halogen, M' is an element chosen from the groups 1, 2 and 13 of the periodic table, R is hydrogen, an alkyl, aryl, alkenyl or alkynyl group containing up to 20 carbon atoms, m=1 when M' is a group 1 element, m=2 when M' is a group 2 element, m=3 when M' is a group 13 element, in order to reduce M, which leads to a subvalent transition metal halide, (b) purifying the subvalent transition metal halide and (c) contacting the subvalent transition metal halide with at least one fulvene compound.

    摘要翻译: 对应于下式的金属茂其中M是第4族过渡金属,每个Y独立地选自卤素,烃基和烃氧基,R 1,R 4独立地选自氢,烃基,烃氧基, R2,R3,R5,R6,R7,R8独立地选自氢,烃基,烃氧基,其中R2和R3,R5和R6,R7和R8可以相互连接 。 一种制备金属茂的方法,包括以下步骤:(a)在溶剂中使式MX4的过渡金属卤化物与式M'Rm的有机金属化合物接触,其中M是第4族过渡金属,X是 卤素,M'是选自周期表第1,2和13族的元素,R是氢,含有至多20个碳原子的烷基,芳基,烯基或炔基,当M'是基团时,m = 1 1元素,当M'为第2族元素时m = 2,当M'为13族元素时m = 3,以减少M,其导致亚价过渡金属卤化物,(b)纯化亚价过渡金属 卤化物和(c)使亚价过渡金属卤化物与至少一种富烯化合物接触。

    Ethylene polymer composition
    9.
    发明授权
    Ethylene polymer composition 有权
    乙烯聚合物组合物

    公开(公告)号:US08653201B2

    公开(公告)日:2014-02-18

    申请号:US11991182

    申请日:2006-08-31

    IPC分类号: C08L23/06 C08G85/00

    摘要: A composition suitable for use in pressure pipes and pipe fittings is disclosed comprising polymer of ethylene and from 0.5 to 5 wt % of a C4-C8 alpha-olefin which has a natural density of 935-956 kg/m3, a melt index MI5 of 0.15-0.5 g/10 min, a dynamic complex viscosity at 100 rad/s and 190° C. (η100) of no more than 2500 Pa·s, a relationship between η100 and dynamic complex viscosity measured in Pa·s at 0.01 rad/s and 190° C. (η0.01) defined by the equation η0.01>115000+30. η100, and an environmental stress crack resistance as measured by a notched pipe test performed according to ISO13479:1997 on 110 mm SDR 11 pipes at 80° C. and a pressure of 9.2 bar, of greater than 1000 hours, or: wherein the C4-C8 alpha-olefin is 1-hexene or 1-octene.

    摘要翻译: 公开了一种适用于压力管道和管件的组合物,其包含乙烯聚合物和0.5至5wt%的C 8 -C 8α-烯烃,其自然密度为935-956kg / m 3,熔体指数MI5为 0.15-0.5g / 10min,100rad / s和190℃下的动态复数粘度(eta100)不超过2500Pa·s,eta100与动态复数粘度之间的关系以Pa·s为0.01rad / s和190℃(eta0.01)由等式eta0.01> 115000 + 30定义。 eta100,以及通过根据ISO13479:1997在80℃下的110mm SDR 11管和9.2巴的压力大于1000小时进行的缺口管试验测量的环境应力开裂抗力,或者:其中C4 -C 8α-烯烃是1-己烯或1-辛烯。

    Polyethylene pipe resins
    10.
    发明申请
    Polyethylene pipe resins 有权
    聚乙烯管材树脂

    公开(公告)号:US20070276111A1

    公开(公告)日:2007-11-29

    申请号:US11783882

    申请日:2007-04-12

    摘要: A polyethylene resin comprising from 44 to 55 wt % of a high molecular weight polyethylene fraction, and from 45 to 56 wt % of a low molecular weight polyethylene fraction; the high molecular weight polyethylene fraction comprising a linear low density polyethylene having a density of from 0.913 to 0.923 g/cm3, and an HLMI of from 0.02 to 0.2 g/10 min; and the low molecular weight polyethylene fraction comprising a high density polyethylene having a density of at least 0.969 g/cm3 and an MI2 of greater than 100 g/10 min; wherein the relationship between the density D of the resin in g/cm3 and the weight fraction of the low molecular weight fraction P1 is defined by 0.055P1+0.916

    摘要翻译: 包含44-55重量%的高分子量聚乙烯部分和45-56重量%的低分子量聚乙烯部分的聚乙烯树脂; 包含密度为0.913至0.923g / cm 3的线性低密度聚乙烯和0.02至0.2g / 10min的HLMI的高分子量聚乙烯部分; 并且所述低分子量聚乙烯部分包含密度为至少0.969g / cm 3和MI 2以上大于100g / 10min的高密度聚乙烯; 其中树脂的密度D(g / cm 3)与低分子量级分P 1的重量分数之间的关系由0.055P 1 +0.916 +0.937。