Polymer mixture with good workability
    5.
    发明授权
    Polymer mixture with good workability 有权
    聚合物混合物具有良好的加工性能

    公开(公告)号:US06350814B1

    公开(公告)日:2002-02-26

    申请号:US09529188

    申请日:2000-04-10

    IPC分类号: C08F800

    摘要: A polymer mixture comprises at least 40 but less than 85% by weight of an ethylene copolymer (A) which has a density of from 0.91 to 0.93 g/cm3, an HLMFR (190° C./21.6 kg) of from 5 to 60 g/10 min and a molar mass distribution Mw/Mn≦3, and more than 15 but at most 60% by weight of an ethylene copolymer (B) which has a density of from 0.93 to 0.945 g/cm3, an HLMFR (190° C./21.6 kg) of from 8 to 20 g/10 min and a molar mass distribution Mw/Mn≧7, where the percentages by weight are in each case based on the total mass of the components (A) and (B).

    摘要翻译: 聚合物混合物包含密度为0.91至0.93g / cm 3的乙烯共聚物(A)的至少40重量%至85重量%,HLMFR(190℃/ 21.6kg)为5至60 g / 10分钟,摩尔质量分布Mw /Mn≤3,以及大于15但至多60重量%的密度为0.93至0.945g / cm3的乙烯共聚物(B),HLMFR( 190℃/ 21.6kg)为8至20g / 10min,摩尔质量分布Mw / Mn> = 7,其中每种情况下的重量百分数都是基于组分(A)和 (B)。

    Low-odor polyethylene blends
    6.
    发明授权
    Low-odor polyethylene blends 失效
    低气味聚乙烯混合物

    公开(公告)号:US06462135B1

    公开(公告)日:2002-10-08

    申请号:US09743923

    申请日:2001-01-17

    IPC分类号: C08L2300

    摘要: In a low-odor polyethylene blend made from a high-molecular-weight ethylene copolymer obtainable by polymerization in the presence of a Ziegler catalyst and from a low-molecular-weight ethylene homopolymer or ethylene copolymer obtainable by polymerization in the presence of a chromocene catalyst on an oxidic support, the Al content of the high-molecular-weight component is from 5 to 60 mg/kg, the Al content of the low-molecular-weight component is from 0 to 5 mg/kg and the Al content of the blend is from 1 to 55 mg/kg. Processes are described for preparing blends of this type. Their use is described for producing moldings, in particular hollow articles and pipes. Moldings, in particular hollow articles and pipes, are produced from low-odor polyethylene blends.

    摘要翻译: 在由可在齐格勒催化剂存在下聚合得到的高分子量乙烯共聚物和可通过在色烯催化剂存在下聚合得到的低分子量乙烯均聚物或乙烯共聚物制成的低气味聚乙烯共混物 在氧化载体上,高分子量成分的Al含量为5〜60mg / kg,低分子量成分的Al含量为0〜5mg / kg,Al 共混物为1至55mg / kg。 描述了制备这种类型的共混物的方法。 它们的用途描述用于生产模制品,特别是中空制品和管道。 木制品,特别是中空制品和管道,由低气味聚乙烯混合物制成。

    Polymer mixture
    7.
    发明授权
    Polymer mixture 失效
    聚合物混合物

    公开(公告)号:US06297323B1

    公开(公告)日:2001-10-02

    申请号:US09424909

    申请日:1999-12-01

    IPC分类号: C08L2316

    摘要: Polymer blends contain at least 85% by weight of ethylene/&agr;-olefin copolymers (A) prepared by metallocene catalysis and from 1 to 15% by weight of essentially linear ethylene/&agr;-olefin copolymers (B) prepared using another catalyst, the percentages in each case being based on the total weight of the polymer blend.

    摘要翻译: 聚合物共混物包含至少85重量%的通过茂金属催化制备的乙烯/α-烯烃共聚物(A)和1至15重量%的使用另一种催化剂制备的基本上线性的乙烯/α-烯烃共聚物(B),百分比 在每种情况下都是基于聚合物共混物的总重量。

    Polymerisates of ethylene with a high degree of resistance to stress crack, and a catalyst system for the production thereof
    8.
    发明授权
    Polymerisates of ethylene with a high degree of resistance to stress crack, and a catalyst system for the production thereof 失效
    具有高抗应力裂纹性的乙烯的聚合物,以及用于制备它的催化剂体系

    公开(公告)号:US06180731B2

    公开(公告)日:2001-01-30

    申请号:US09000011

    申请日:1997-01-22

    IPC分类号: C08F442

    摘要: Polymers of ethylene are obtainable by polymerization of ethylene and, if desired, further comonomers in the presence of a catalyst system comprising as active constituents I) a Phillips catalyst, II) a solid which is different from I) and comprises a component which is derived from the metallocene complexes of the formula (A) in which the substituents and indices have the following meanings:  R1 to R10 are hydrogen, C1-C10-alkyl, 5-to 7-membered cycloalkyl which may in turn bear C1-C6-alkyl groups as substituents, C6-C15-aryl or aryalkyl, where two adjacent radicals may also together form a cyclic group having from 4 to 15 carbon atoms, or Si(R11)3, where R11 is C1-C10-alkyl, C6-C15-aryl or C3-C10-cycloalkyl, or the radicals R4 and R9 together form a group —[Y(R12R13)]m—, where Y is silicon, germanium, tin or carbon, and R12, R13 are hydrogen C1-C10-alky, C3-C10-cycloalyl or C6-C15-aryl, M is a metal of transition groups IV to VIII or a metal of the lanthanide series, Z1, Z2 are fluorine, chlorine, bromine, iodine, hydrogen, C1-C20-alkyl or aryl, —OR14, —OOCR14,  where R14 is hydrogen or C1-C20-alkyl; R15 is C1-C20-alkyl; m is 1,2,3 or 4; n is 0, or 2; r is 0, 1 or 2; the sum n+r is likewise 0, 1 or 2, and, if desired, III) an organometallic component selected from groups IA, IIA, IIB and IIIA of the Periodic Table of the Elements.

    摘要翻译: 乙烯的聚合物可以通过在包含作为活性成分的催化剂体系的存在下乙烯和如果需要的情况下进一步的共聚单体获得。I)菲利普斯催化剂,II)与I)不同的固体,并且包含衍生自 式(A)的金属茂络合物,其中取代基和指数具有以下含义:R 1至R 10是氢,C 1 -C 10 - 烷基,5-至7-元环烷基,其也可以含有C 1 -C 6 - 烷基 作为取代基,其中两个相邻基团也可以一起形成具有4至15个碳原子的环状基团的C 6 -C 15 - 芳基或芳烷基,或其中R 11是C 1 -C 10 - 烷基,C 6 -C 15 - 芳基或C 3 -C 10 - 环烷基,或基团R 4和R 9一起形成 - [Y(R 12 R 13)] m - 基团,其中Y是硅,锗,锡或碳,R 12,R 13是氢C1-C10-烷基 C 3 -C 10 - 环烷基或C 6 -C 15 - 芳基,M为Ⅳ〜Ⅷ族金属或镧系金属,Z 1,Z 2为氟, 氯,溴,碘,氢,C 1 -C 20烷基或芳基,-OR 14,-OOCR 14,其中R 14是氢或C 1 -C 20烷基; R 15是C 1 -C 20 - 烷基; m为1,2,3或4; n为0或2; r为0,1或2; 总和n + r同样为0,1或2,如果需要,III)选自元素周期表的IA,IIA,IIB和IIIA族的有机金属组分。