POLYMER
    1.
    发明申请
    POLYMER 审中-公开
    聚合物

    公开(公告)号:US20100029883A1

    公开(公告)日:2010-02-04

    申请号:US12449089

    申请日:2008-01-24

    IPC分类号: C08F297/08

    摘要: A multimodal medium density polyethylene polymer obtainable using single site catalysis which comprises at least:(A) a lower molecular weight (LMW) component which is a copolymer of ethylene with at least one comonomer, and (B) a higher molecular weight (HMW) component which is a copolymer of ethylene with at least one comonomer;wherein said multimodal medium density polyethylene polymer has a density of more than 925 kg/m3; and the ratio between the comonomer content in mol-% present in LMW component (A) and the total comonomer content in mol-% present in the multimodal medium density polyethylene polymer is more than 0.3.

    摘要翻译: 可使用单位点催化得到的多峰中密度聚乙烯聚合物,其至少包括:(A)乙烯与至少一种共聚单体的共聚物的低分子量(LMW)组分和(B)较高分子量(HMW) 组分,其是乙烯与至少一种共聚单体的共聚物; 其中所述多峰中密度聚乙烯聚合物具有大于925kg / m 3的密度; 在LMW组分(A)中存在的共聚单体含量(mol%)与多峰中密度聚乙烯聚合物中存在的总共聚单体摩尔%的比例大于0.3。

    MOULDING COMPOSITION
    7.
    发明申请
    MOULDING COMPOSITION 有权
    成型组合物

    公开(公告)号:US20130030125A1

    公开(公告)日:2013-01-31

    申请号:US13575334

    申请日:2011-01-27

    IPC分类号: C08L23/04 C08L23/20

    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。