Cocatalysts useful for improving polyethylene film properties
    1.
    发明申请
    Cocatalysts useful for improving polyethylene film properties 审中-公开
    可用于改善聚乙烯薄膜性能的助催化剂

    公开(公告)号:US20070004875A1

    公开(公告)日:2007-01-04

    申请号:US11471997

    申请日:2006-06-21

    IPC分类号: C08F2/00

    摘要: Commonly used triethyl aluminum and tri-isobutyl aluminum cocatalysts can be replaced in olefin polymerizations with a cocatalyst conforming to the formula AlRz(Xz)nLzm wherein Rz is a linear or branched organic moiety having at least 5 carbons and Xz is a linear or branched organic moiety having at least 5 carbons or heteroatom substituted organic moiety or a heterocyclic moiety having at least 4 atoms and can be anionic (n=2) or dianionic (n=1). Xz can also be hydrogen. The aluminum complex may also be in the form of an adduct complex where Lz is a Lewis base and m=1-3. The general formula is subject to the proviso that when n=2, each Xz may be the same or different and that both Xz moieties may not be hydrogen. Use of the invention enables production of a polyolefin film, such as polyethylene film, exhibiting improved bubble stability and other desirable properties.

    摘要翻译: 通常使用的三乙基铝和三异丁基铝助催化剂可以在烯烃聚合反应中用符合下列公式的助催化剂来代替:式中:“In-line formula”end =“lead”?> AlR (X z) 其中R z是具有至少5个碳的直链或支链有机部分,X是直链或支链的有机部分 具有至少5个碳原子或杂原子取代的有机部分的部分或具有至少4个原子的杂环部分,并且可以是阴离子(n = 2)或二阴离子(n = 1)。 X“Z”也可以是氢。 铝络合物也可以是加合物络合物的形式,其中L z是路易斯碱,m = 1-3。 通式为条件,当n = 2时,每个X Z可以相同或不同,并且两个X z可以不是氢。 使用本发明可以生产聚烯烃薄膜,如聚乙烯薄膜,具有改进的气泡稳定性和其它所需的性能。

    Cocatalysts useful for preparing polyethylene pipe
    2.
    发明申请
    Cocatalysts useful for preparing polyethylene pipe 审中-公开
    可用于制备聚乙烯管的助催化剂

    公开(公告)号:US20070003720A1

    公开(公告)日:2007-01-04

    申请号:US11471996

    申请日:2006-06-21

    IPC分类号: B32B27/08

    摘要: Commonly used triethyl aluminum and tri-isobutyl aluminum cocatalysts may be replaced in olefin polymerizations with a cocatalyst conforming to the formula AlRz(Xz)nLzm wherein Rz is a linear or branched organic moiety having at least 5 carbons and Xz is a linear or branched organic moiety having at least 5 carbons or heteroatom substituted organic moiety or a heterocyclic moiety having at least 4 atoms and may be anionic (n=2) or dianionic (n=1). Xz may also be hydrogen. The general formula is subject to the proviso that when n=2, each Xz may be the same or different and that both Xz moieties may not be hydrogen. The aluminum complex may also be in the form of an adduct complex where Lz is a Lewis base and m=1-3. Use of the invention enables production of a polyolefin pipe, such as polyethylene pipe, exhibiting improved processing, crack resistance and other desirable properties.

    摘要翻译: 通常使用的三乙基铝和三异丁基铝助催化剂可以用烯烃聚合反应替代,其中助催化剂符合式<?in-line-formula description =“In-line Formulas”end =“lead”?> AlR (X z) 其中R z是具有至少5个碳的直链或支链有机部分,X是直链或支链的有机部分 具有至少5个碳原子或杂原子取代的有机部分的部分或具有至少4个原子的杂环部分,并且可以是阴离子(n = 2)或二阴离子(n = 1)。 X 也可以是氢。 通式为条件,当n = 2时,每个X Z可以相同或不同,并且两个X z可以不是氢。 铝络合物也可以是加合物络合物的形式,其中L z是路易斯碱,m = 1-3。 使用本发明可以生产出聚烯烃管,如聚乙烯管,具有改善的加工性,抗裂性和其它所需的性能。