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公开(公告)号：US5330949A
公开(公告)日：1994-07-19
申请号：US515782
申请日：1990-04-26
CPC分类号： C08F10/00 , Y10S526/943
摘要： A method for producing a polyolefin is disclosed which comprises polymerizing an .alpha.-olefin in the presence of a catalyst composition comprising (A) a solid catalyst component prepared by contacting (a) a solid component comprising a magnesium alkoxide and/or a magnesium salt of a fatty acid supported on an inorganic oxide composed of at least one member selected from the group consisting of oxides of elements belonging to Groups II, III and IV of the periodic table and/or a composite inorganic oxide containing at least one member selected from the group consisting of oxides of elements belonging to Groups II, III and IV of the periodic table, the inorganic oxide or composite inorganic oxide having a surface hydroxide concentration of 3 .mu.mol/m.sup.2 or less, (b) an electron donating compound and (c) a titanium halide, (B) an organic metal compound, and (C) an electron donating compound.According to the method, a step of removing the catalyst residue: from the polypropylene produced can be eliminated and the products have well balanced mechanical strength such as stiffness and impact strength.
摘要翻译： 公开了一种生产聚烯烃的方法，其包括在催化剂组合物存在下聚合α-烯烃，所述催化剂组合物包含（A）通过使（a）包含烷氧基镁和/或镁盐的固体组分与 负载在由选自元素周期表第II，III和Ⅳ族的元素的氧化物中的至少一种构成的无机氧化物上的脂肪酸和/或含有选自以下的至少一种的复合无机氧化物： 由元素周期表II，III和IV族元素的氧化物，表面氢氧化物浓度为3μmol/ m 2以下的无机氧化物或复合无机氧化物组成的组，（b）给电子化合物和（c ）卤化钛，（B）有机金属化合物，和（C）给电子化合物。 根据该方法，可以消除从生产的聚丙烯中除去催化剂残留物的步骤，并且产品具有良好平衡的机械强度，例如刚度和冲击强度。
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公开(公告)号：US4981930A
公开(公告)日：1991-01-01
申请号：US171719
申请日：1988-03-22
申请人： Hideo Funabashi , Akira Tanaka , Rikuo Ohnishi
发明人： Hideo Funabashi , Akira Tanaka , Rikuo Ohnishi
CPC分类号： C08F10/00 , Y10S526/901
摘要： A method of producing a polyolefin. An olefin is polymerized in the presence of a catalyst containing (A) a catalyst component containing magnesium, titanium, halogen and an electron donor, (B) an organoaluminum compound and (C) an external electron donor which is an ether compound (C.sup.1) of the formula [1a]: ##STR1## or formula [1b]: ##STR2## wherein R.sup.1, R.sup.2, R.sup.4 and R.sup.7 are saturated or unsaturated aliphatic hydrocarbyl group having 1 to 7 carbon atoms; R.sup.3 and R.sup.6 are a hydrogen atom or a saturated or unsaturated aliphatic hydrocarbyl group having 1 to 7 carbons and R.sup.5 is a divalent aliphatic hydrocarbyl group having 1 to 7 carbon atoms. The catalyst used in the polymerization may also contain a carboxylate, organosilicon compound and/or an azo compound.
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公开(公告)号：US20100280153A1
公开(公告)日：2010-11-04
申请号：US12735350
申请日：2009-01-08
CPC分类号： C08L23/12 , B32B27/06 , B32B27/08 , B32B27/18 , B32B27/20 , B32B27/32 , B32B2262/101 , B32B2262/106 , B32B2264/062 , B32B2264/067 , B32B2264/104 , B32B2270/00 , B32B2307/30 , B32B2307/50 , B32B2307/546 , B32B2419/00 , B32B2439/70 , B32B2471/00 , B32B2479/00 , B32B2509/00 , B32B2605/00 , B32B2607/00 , C08F110/06 , C08F210/06 , C08F255/02 , C08L23/10 , C08L23/26 , C08L51/003 , C08L51/06 , C08L2666/24 , C08F2500/12 , C08F2500/03 , C08F2500/20 , C08F2500/17 , C08F222/40
摘要： It is an object of the present invention to provide a modified propylene resin containing very small amounts of low-crystalline and low-molecular-weight components. The present invention relates to a modified propylene resin characterized by satisfying the following requirements (1) to (4). (1) The melting point (Tm) measured with a differential scanning calorimeter (DSC) is 140° C. or higher. (2) The amount of grafts of ethylenic unsaturated bond-containing monomer after hot xylene washing is 0.1 to 5 percent by weight. (3) The amount of components soluble in o-dichlorobenzene at 70° C. is 1.5 percent by weight or less. (4) The intrinsic viscosity [η] is 0.1 to 4 dl/g.
摘要翻译： 本发明的目的是提供含有非常少量的低结晶和低分子量组分的改性丙烯树脂。 本发明涉及一种改性丙烯树脂，其特征在于满足以下要求（1）至（4）。 （1）用差示扫描量热计（DSC）测定的熔点（Tm）为140℃以上。 （2）热二甲苯洗涤后含烯属不饱和键的单体的接枝量为0.1〜5重量％。 （3）在70℃下可溶于邻二氯苯的成分的量为1.5重量％以下。 （4）特性粘度[ηe]为0.1〜4dl / g。
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