Moulding composition
    11.
    发明授权
    Moulding composition 有权
    成型组合物

    公开(公告)号:US08674024B2

    公开(公告)日:2014-03-18

    申请号:US13575334

    申请日:2011-01-27

    IPC分类号: C08F8/00 C08L23/04

    摘要: A polyethylene moulding composition having a multimodal molecular weight distribution, having a density according to ISO 1183 at 23° C. in the range of 920 to 960 kg/m3 and an MFR190/2 according to ISO 1133 in the range of 0.05 to 10 g/10 min, said polyethylene moulding composition comprising at least three ethylene polymer fractions having distinct molecular weights: A) 15 to 50 wt % of a low molecular weight ethylene homopolymer or copolymer fraction with a weight average molecular weight Mw in the range of 15 to 40 kg/mol; B) 15 to 50 wt % of a medium molecular weight ethylene homopolymer or copolymer fraction with a weight average molecular weight Mw in the range of 70 to 200 kg/mol; and C) 15 to 50 wt % of a high molecular weight ethylene homopolymer or copolymer fraction with a weight average molecular weight Mw in the range of 220 to 400 kg/mol, provided that one of A, B and C is an ethylene homopolymer and at least one other component is an ethylene copolymer with at least one C3-C10 comonomer; and wherein the composition has—a Shore D hardness measured according to ASTM D2240-05 (15 sec) of at least 56.0.

    摘要翻译: 具有多峰分子量分布的聚乙烯模塑组合物,其在23℃下的密度在920至960kg / m 3范围内,根据ISO 1133的MFR190 / 2在0.05至10g的范围内 10分钟,所述聚乙烯模塑组合物包含至少三种具有不同分子量的乙烯聚合物级分:A)15至50重量%的低分子量乙烯均聚物或共聚物部分,其重均分子量Mw在15至 40公斤/摩尔; B)15至50重量%的中等分子量的乙烯均聚物或共聚物部分,其重均分子量Mw为70-200kg / mol; 和C)15至50重量%的重均分子量Mw在220至400kg / mol范围内的高分子量乙烯均聚物或共聚物部分,条件是A,B和C中的一个是乙烯均聚物, 至少一种其它组分是与至少一种C 3 -C 10共聚单体的乙烯共聚物; 并且其中所述组合物具有根据ASTM D2240-05(15秒)测量的至少56.0的肖氏D硬度。

    Polymerization catalysts, preparation of polyolefins, organotransition metal compounds and ligands
    14.
    发明授权
    Polymerization catalysts, preparation of polyolefins, organotransition metal compounds and ligands 失效
    聚合催化剂,聚烯烃的制备,有机过渡金属化合物和配体

    公开(公告)号:US07589223B2

    公开(公告)日:2009-09-15

    申请号:US10573228

    申请日:2004-09-16

    摘要: The invention relates to non-metallocene catalyst systems useful for preparing olefin homopolymers or copolymers. The catalyst systems comprise a cocatalyst and a Group 3-10 transition metal compound that incorporates a diimine ligand in which sp2-hybridized carbons of the imine groups are joined by a specific divalent one- or two-membered bridge (Y) comprising nitrogen and/or oxygen. The invention includes the diimine ligands, the transition metal compounds, the catalyst systems, and processes for making the ligands, transition metal compounds, catalyst systems, and olefin homopolymers or copolymers.

    摘要翻译: 本发明涉及用于制备烯烃均聚物或共聚物的非茂金属催化剂体系。 催化剂体系包含助催化剂和3-10族过渡金属化合物,该化合物含有二亚胺配体,其中亚胺基团的sp2杂化的碳通过特定的二价一元或二元桥(Y)与氮和/ 或氧气。 本发明包括二亚氨配体,过渡金属化合物,催化剂体系以及制备配体,过渡金属化合物,催化剂体系和烯烃均聚物或共聚物的方法。