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公开(公告)号:US20080051528A1
公开(公告)日:2008-02-28
申请号:US11631588
申请日:2005-07-06
IPC分类号: C08F2/00 , C08F10/02 , C08F210/16 , C08F4/02 , C08F4/654
CPC分类号: C08F10/00 , C08F10/02 , C08F110/02 , C08F210/16 , Y10S526/908 , C08F4/651 , C08F4/025 , C08F4/6548 , C08F4/6555 , C08F2/14 , C08F2/001 , C08F2500/12 , C08F2500/07 , C08F2500/24 , C08F210/08
摘要: The present invention relates to a process of producing an ethylene polymer composition in multiple stages of which the first stage is a slurry polymerization stage, in the presence of a catalyst system comprising a) a solid catalyst precursor comprising a transition metal selected from titanium and vanadium; magnesium, a halide, optionally an electron donor, and a solid particulate material comprising an inorganic oxide, wherein the median particle diameter of the solid catalyst precursor based upon the total volume of solid catalyst precursor, D50, is from 1 to 13 micrometers; and b) an organoaluminium compound.
摘要翻译: 本发明涉及在多阶段制备乙烯聚合物组合物的方法,其中第一阶段是淤浆聚合阶段,在催化剂体系存在下,包括a)包含选自钛和钒的过渡金属的固体催化剂前体 ; 镁,卤化物,任选的电子给体和包含无机氧化物的固体颗粒材料,其中固体催化剂前体的中值粒径基于固体催化剂前体D 50的总体积, 为1至13微米; 和b)有机铝化合物。
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公开(公告)号:US20070021567A1
公开(公告)日:2007-01-25
申请号:US11480091
申请日:2006-06-30
申请人: Jozef Van Dun , Peter van den Berghe , Patrick Schouterden , Ruddy Nicasy , Johan Vanvoorden , Frederik Gemoets , Kalyan Sehanobish , Noorallah Jivraj , Ravi Dixit
发明人: Jozef Van Dun , Peter van den Berghe , Patrick Schouterden , Ruddy Nicasy , Johan Vanvoorden , Frederik Gemoets , Kalyan Sehanobish , Noorallah Jivraj , Ravi Dixit
IPC分类号: C08L23/04
CPC分类号: C08F10/02 , C08F4/65908 , C08F4/65916 , C08F10/00 , C08F110/02 , C08F210/16 , C08L23/06 , C08L23/08 , C08L23/0807 , C08L23/0815 , C08L2205/025 , C08L2308/00 , C08L2314/06 , C08F2/001 , C08F4/6592 , C08L2666/06 , C08L2666/04 , C08F210/14 , C08F2500/13 , C08F2500/02 , C08F2500/01 , C08F2500/07 , C08F2500/05 , C08F2500/12 , C08F2/00 , C08F2500/18 , C08F2500/24 , C08F210/08
摘要: The invention relates to a polyethylene composition with a bimodal molecular weight distribution, methods for making the same, and articles made therefrom, such as high topload blow moldings and transmission and distribution pipes. The composition comprises a low-molecular-weight (LMW) ethylene homopolymer component and a homogeneous, high-molecular-weight (HMW) ethylene interpolymer component, wherein the LMW component is characterized as having a molecular weight distribution, MWDL, of less than about 8. In some embodiments, the HMW component is characterized by a reverse comonomer distribution.
摘要翻译: 本发明涉及具有双峰分子量分布的聚乙烯组合物,其制备方法和由其制成的制品,例如高顶吹吹塑成型体和输配管。 组合物包含低分子量(LMW)乙烯均聚物组分和均匀的高分子量(HMW)乙烯互聚物组分,其中LMW组分的特征在于具有分子量分布,MWD < / SUP>小于约8.在一些实施方案中,HMW组分的特征在于反向共聚单体分布。
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公开(公告)号:US20060276593A1
公开(公告)日:2006-12-07
申请号:US11472071
申请日:2006-06-21
申请人: Jozef Van Dun , Akira Miyamoto , Grant Jacobsen , Fumio Matsushita , Patrick Schouterden , Lee Spencer , Pak-Wing Chum , Larry Meiske , Peter Wauteraerts
发明人: Jozef Van Dun , Akira Miyamoto , Grant Jacobsen , Fumio Matsushita , Patrick Schouterden , Lee Spencer , Pak-Wing Chum , Larry Meiske , Peter Wauteraerts
IPC分类号: C08F110/02 , C08L23/04 , C08L23/00
CPC分类号: C08F10/00 , C07F17/00 , C08F4/61908 , C08F4/61912 , C08F4/61916 , C08F4/6192 , C08F4/65908 , C08F4/65912 , C08F4/65916 , C08F10/02 , C08F110/02 , C08F210/16 , C08L23/06 , C08L23/0815 , C08L2203/202 , C08L2308/00 , C08L2314/06 , C08F4/6592 , C08L2666/06 , C08F2500/18 , C08F2500/08 , C08F2500/03 , C08F210/14 , C08F210/08
摘要: This invention relates to novel homopolymers important for applications where a high density is needed to ensure certain mechanical properties like abrasion resistance, indentation resistance, pressure resistance, topload resistance, modulus of elasticity, or morphology (for the chlorination of PE to CPE) and additional advantages such as melt processability. This invention also relates to blend compositions containing the novel homopolymer, the use of which allows the incorporation of more comonomer in the additional components of the blend (for the same overall density) resulting in increased tie molecule formation and improvement in properties such as ESCR, toughness and impact strength. The blend can be obtained by dry or melt mixing the already produced components, or through in-situ production by in parallel and/or in series arranged reactors. These resins can be used in applications such as films, blow molded, injection molded, and rotomolded articles, fibres, and cable and wire coatings and jacketings and, various forms of pipe.
摘要翻译: 本发明涉及对于需要高密度以确保某些机械性能如耐磨性,耐压缩性,耐压性,耐负载性,弹性模量或形态(用于将聚氯乙烯与聚氯乙烯进行氯化)等附加的重要的新型均聚物) 优点如熔融加工性。 本发明还涉及含有新型均聚物的共混组合物,其用途允许在共混物的另外的组分中引入更多的共聚单体(相同的总体密度),导致连接分子的形成和性能的提高,例如ESCR, 韧性和冲击强度。 共混物可以通过干燥或熔融混合已经生产的组分,或通过平行和/或串联排列的反应器的原位生产来获得。 这些树脂可以用于薄膜,吹塑成型,注射成型和滚塑制品,纤维,电缆和线材涂层和护套以及各种形式的管子。
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