PROPYLENE-BASED TERPOLYMERS COMPOSITION FOR PIPES
    1.
    发明申请
    PROPYLENE-BASED TERPOLYMERS COMPOSITION FOR PIPES 有权
    用于管道的丙烯基聚合物组合物

    公开(公告)号:US20140349051A1

    公开(公告)日:2014-11-27

    申请号:US14362564

    申请日:2012-12-05

    Abstract: A polyolefin composition comprising:A) from 85.0 wt % to 99.5 wt %; A terpolymer containing propylene, ethylene and 1-hexene wherein:(i) the content of 1-hexene derived units ranges from 1.0 wt % to 5.0%;(ii) the content of ethylene derived units is comprised between 0.5 wt % and 10.0 wt %(iii) the melting temperature ranges from 130° C. to 145° C.;B) from 0.5 wt % to 10.0 wt %; of a propylene, ethylene copolymer composition comprising:b1) from 12 wt % to 52 wt %; of a propylene homopolymer or a propylene/ethylene copolymer having a content of ethylene derived units ranging from 0.1 wt % to 4.5 wt %; and having a xylene soluble content measured at 25° C. lower than 10 wt %;b2) from 48 wt % to 88 wt % of a propylene ethylene copolymer having a content of ethylene derived units ranging from 15.0 wt % to wt % to 42.0 wt %;wherein the resulting polyolefin composition has an melt flow rate (230° C./5 kg. ISO 1133) ranging from 0.2 g/10 min to 4.0 g/10 min; the sum A+B being 100 and the sum b1+b2 being 100.

    Abstract translation: 一种聚烯烃组合物,其包含:A)85.0重量%至99.5重量%; 含有丙烯,乙烯和1-己烯的三元共聚物,其中:(i)1-己烯衍生单元的含量为1.0wt%至5.0%; (ii)乙烯衍生单元的含量为0.5重量%至10.0重量%之间(iii)熔融温度范围为130℃至145℃; B)为0.5重量%〜10.0重量% 的丙烯,乙烯共聚物组合物,其包含:b1)12重量%至52重量%; 的丙烯均聚物或丙烯/乙烯共聚物,其乙烯衍生单元的含量范围为0.1重量%至4.5重量%; 并且在25℃下测得低于10重量%的二甲苯可溶物含量; b2)为48重量%至88重量%的乙烯衍生单元含量为15.0重量%至42重量%的丙烯乙烯共聚物; 其中所得聚烯烃组合物的熔体流动速率(230℃,5kg,ISO 1133)为0.2g / 10min至4.0g / 10min; 总和A + B为100,总和b1 + b2为100。

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