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    Process for the preparation of olefin (co) polymers, olefin copolymers, and application thereof
    2.
    发明授权
    Process for the preparation of olefin (co) polymers, olefin copolymers, and application thereof 有权
    烯烃（共）聚合物，烯烃共聚物的制备方法及其应用

    公开(公告)号：US06410662B1

    公开(公告)日：2002-06-25

    申请号：US09485492

    申请日：2000-02-11

    申请人： Tsutomu Ushioda ,  Jun Saito ,  Mototake Tsutsui ,  Yoshitoyo Yasuda ,  Hiroyuki Fujita ,  Toshihiro Uwai ,  Yoshiyuki Ohgi ,  Minoru Adachi ,  Yoshitaka Morimoto ,  Taketo Hirose ,  Youichi Kugimiya ,  Masahiko Taniguchi ,  Hitoshi Kuramochi

    发明人： Tsutomu Ushioda ,  Jun Saito ,  Mototake Tsutsui ,  Yoshitoyo Yasuda ,  Hiroyuki Fujita ,  Toshihiro Uwai ,  Yoshiyuki Ohgi ,  Minoru Adachi ,  Yoshitaka Morimoto ,  Taketo Hirose ,  Youichi Kugimiya ,  Masahiko Taniguchi ,  Hitoshi Kuramochi

    IPC分类号： C08F444

    CPC分类号： C08F10/06 ,  C08F4/65912 ,  C08F4/65927 ,  C08F10/00 ,  C08F110/06 ,  Y10S526/943 ,  C08F4/65916 ,  C08F2500/03 ,  C08F2500/15 ,  C08F2500/01 ,  C08F2500/12 ,  C08F2500/26

    摘要： Disclosed is a process for producing olefin polymers or copolymers which can freely regulates the molecular weight of the polymers or copolymers as well as novel olefin polymers or copolymers excellent in rigidity, heat-resisting property and transparency, moldings and compositions thereof which find a wide variety of applications in versatile industrial parts including containers, films, sheets, filaments or fibers, featured by (1) a process for producing olefin polymers or copolymers by the aid of a catalyst comprised predominantly of the compounds: (A) a transition metal compound of the formula: Q(C5H4−mR1m)(C5H4−nR2n)MXY, (B) an aluminoxane, (C) a fine particulate carrier, and (D) an organoaluminum compound; (2) olefin polymers or copolymers characterized by (a) a specific ratio of isotactic pentad, (b) 2,1- and 1.3-propylene units contents in the polymer chain, (c) a specific Mw, (d) a specific Mw/Mn, and (e) in case of elevating temperature of o-dichlorobenzene continuously or stepwise up to given temperatures to measure the amount of eluated polyolefin at each temperature, the position of a main elution peak and the amount of components existing in the range of ±10° C. of the main elution peak; (3) injection moldings, films, filaments or fibers, and non-woven fabric of the polypropylene obtained; and (4) a composition comprising the polypropylene obtained and an &agr;-nucleating agent or a composition comprising the polypropylene and a radical generator and having been produced by subjecting to the mixture to melt-kneading.

    摘要翻译： 公开了可以自由调节聚合物或共聚物的分子量的烯烃聚合物或共聚物的方法，以及刚性，耐热性能和透明性，模制品和组合物的新型烯烃聚合物或共聚物，其具有广泛的种类 在包括容器，膜，片，长丝或纤维在内的通用工业部件中的应用，其特征在于（1）主要由以下化合物构成的催化剂生产烯烃聚合物或共聚物的方法：（A）过渡金属化合物 式（QH（C5H4-mR1m）（C5H4-nR2n））MXY，（B）铝氧烷，（C）微粒载体和（D）有机铝化合物; （2）烯烃聚合物或共聚物，其特征在于（a）聚合物链中全同立构五单体，（b）2,1-和1.3-丙烯单元含量的比例，（c）特定Mw，（d）特定Mw / Mn，（e）在邻二氯苯连续或逐步升高至给定温度的情况下，在每个温度下测量洗脱聚烯烃的量，主洗脱峰的位置和存在于该范围内的组分的量 ±10℃的主洗脱峰; （3）注射成型品，薄膜，细丝或纤维，以及得到的聚丙烯的无纺布; 和（4）包含所得聚丙烯和α-成核剂或包含聚丙烯和自由基发生剂的组合物并通过使混合物进行熔融捏合而制备的组合物的组合物。

    Polypropylene composition, process for preparing the same, and polymerization catalyst therefor
    4.
    发明授权
    Polypropylene composition, process for preparing the same, and polymerization catalyst therefor 失效
    聚丙烯组合物，其制备方法及其聚合催化剂

    公开(公告)号：US06531551B2

    公开(公告)日：2003-03-11

    申请号：US09214798

    申请日：1999-01-11

    申请人： Katsuhiko Ohno ,  Masami Kimura ,  Taketo Hirose ,  Yoshitaka Morimoto ,  Jun Saito

    发明人： Katsuhiko Ohno ,  Masami Kimura ,  Taketo Hirose ,  Yoshitaka Morimoto ,  Jun Saito

    IPC分类号： C08F1006

    CPC分类号： C08L23/10 ,  C08L23/06 ,  C08L23/142 ,  C08L2314/02 ,  C08L2666/04

    摘要： A polypropylene composition comprising 0.001 to 10 parts by weight of a polyethylene having an intrinsic viscosity [&eegr;E] of 0.01 to less than 15 dl/g s measured in tetralin at 135° C. and 100 parts by weight of a polyolefin comprising at least polypropylene, wherein the polyethylene is finely dispersed as particles with a number average particle diameter of, e.g., 1 to 5000 nm in the polyolefin comprising at least polypropylene. By virtue of the above constitution, the polypropylene composition has excellent transparency and rigidity, is free from the creation of a sweeper roll flow mark in the preparation of a film and substantially free from a neck-in phenomenon of a film, and has high productivity.

    摘要翻译： 一种聚丙烯组合物，其包含0.001至10重量份在135℃下在四氢化萘中测量的特性粘度η为0.01至小于15dl / g的聚乙烯和100重量份至少包含聚丙烯的聚烯烃， 其中所述聚乙烯在至少包含聚丙烯的聚烯烃中作为具有数均粒径例如1至5000nm的颗粒细分散。 通过上述结构，聚丙烯组合物具有优异的透明性和刚性，在制备薄膜时基本上没有膜的颈部现象而产生清扫辊流动痕迹，并且具有高的生产率 。