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1.发明授权High-rigidity, high-melt-viscoelasticity polypropylene and process for producing the same 失效高刚性，高熔点粘弹性聚丙烯及其制造方法
公开(公告)号：US4499247A
公开(公告)日：1985-02-12
申请号：US501893
申请日：1983-06-07
申请人： Hiromasa Chiba , Kenjiro Obama , Shunji Kawazoe , Takahiro Oka , Akihiro Satoh
发明人： Hiromasa Chiba , Kenjiro Obama , Shunji Kawazoe , Takahiro Oka , Akihiro Satoh
IPC分类号： C08F2/00 , C08F2/04 , C08F4/00 , C08F4/60 , C08F4/64 , C08F8/00 , C08F10/00 , C08F10/06 , C08F110/06
CPC分类号： C08F10/06 , Y10S526/905
摘要： A superior high-rigidity and high-melt-viscoelasticity polypropylene for sheets to be post-processed and for blow molding is provided which polypropylene is produced by subjecting propylene to a multi-stage polymerization into polymer portions of two sections in the presence of a specified Ziegler Natta catalyst, the relationship between the intrinsic viscosities of the polymer portions of the respective sections being regulated within a specified range and also the amount ratio of the polymer portions of the respective sections being regulated.
摘要翻译： 提供了用于后处理和吹塑的片材的优异的高刚性和高熔点粘弹性聚丙烯，其通过在规定的存在下将丙烯进行多段聚合成两段聚合物部分来制备聚丙烯 齐格勒纳塔催化剂，将各部分的聚合物部分的特性粘度之间的关系调节在规定范围内，并且调节各部分的聚合物部分的量比。
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2.发明授权Ethylene-propylene copolymers for foaming and process for producing the same 失效用于发泡的乙烯 - 丙烯共聚物及其制备方法
公开(公告)号：US4510292A
公开(公告)日：1985-04-09
申请号：US522013
申请日：1983-08-11
申请人： Hiromasa Chiba , Kenjiro Obama , Shunji Kawazoe , Takahiro Oka , Akihiro Satoh
发明人： Hiromasa Chiba , Kenjiro Obama , Shunji Kawazoe , Takahiro Oka , Akihiro Satoh
IPC分类号： C08F4/00 , C08F4/60 , C08F4/64 , C08F297/00 , C08F297/08 , C08J9/04 , C08J9/06 , C08L23/10 , C08L23/16
CPC分类号： C08F297/083 , C08L23/10 , C08L2205/02 , C08L23/16
摘要： An ethylene-propylene block copolymer capable of producing foamed shaped articles having a structure of uniform and fine foams even without adding any other resins, and a process for producing the same are provided, which copolymer consists of a propylene homopolymer portion and an ethylene-propylene (EP) copolymer portion and is characterized in that .circle.1 the former portion is obtained by polymerizing propylene at two stages so that the portion can further consist of a lower molecular weight portion and a higher molecular portion; .circle.2 between the melt flow rates of the resulting block copolymer under a specified load and five times the load, there is a specified relationship; .circle.3 the EP copolymer portion has an ethylene content of 60 to 95% by weight based on this portion; and .circle.4 the block copolymer has an ethylene content of 10 to 40% by weight based on the copolymer.
摘要翻译： 提供能够生产具有均匀和细小泡沫的结构的发泡成型制品的乙烯 - 丙烯嵌段共聚物，即使不添加任何其它树脂，以及其制备方法，该共聚物由丙烯均聚物部分和乙烯 - 丙烯 （EP）共聚物部分，其特征在于，前一部分通过在两个阶段聚合丙烯获得，使得该部分可以进一步由较低分子量部分和较高分子部分组成; 所得嵌段共聚物在规定负荷下的熔体流动速率与负荷的5倍之间，有一个特定的关系; ＆lt; 3＆gt; EP共聚物部分基于该部分的乙烯含量为60〜95重量％ 和＆lt; c＆lt; 4＆gt;嵌段共聚物的乙烯含量基于共聚物为10〜40重量％。
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公开(公告)号：US4076922A
公开(公告)日：1978-02-28
申请号：US711022
申请日：1976-08-02
申请人： Akihiro Satoh , Akio Takahashi , Jun Masuda , Masato Harada , Sadahiko Yamada
发明人： Akihiro Satoh , Akio Takahashi , Jun Masuda , Masato Harada , Sadahiko Yamada
CPC分类号： C08F10/02
摘要： An improvement in the method for producing ethylene polymers by using a catalyst consisting of a combination of a following solid product with an organoaluminum compound is provided.Said solid product (III) is prepared by reacting a trivalent metal halide with a divalent metal compound; reacting the resulting reaction product with a transition metal compound in the form of liquid; reacting the resulting solid product (I) with an aluminum or boron alcoholate; and reacting the resulting solid product (II) again with a transition metal compound in the form of liquid to obtain said solid product (III).Ethylene polymers obtained according to this method have broader molecular weight distributions.
摘要翻译： 提供了通过使用由以下固体产物与有机铝化合物组合的催化剂制备乙烯聚合物的方法的改进。
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公开(公告)号：US4027087A
公开(公告)日：1977-05-31
申请号：US301908
申请日：1972-10-30
CPC分类号： C08F10/00 , C08F2410/04 , Y10S526/903
摘要： Ethylene can be polymerized or copolymerized by the use of a catalyst prepared by mixing a trivalent metal halide with a metal carbonate or/and a metal hydrogen carbonate, reacting the resulting mixture with a transition metal compound in the presence of an aromatic compound, and activating the resulting solid product with an organoaluminum compound.By substituting said metal carbonate or/and metal hydrogen carbonate for metal salt hydrates, sulfide hydrates, hydroxides or hydroxide hydrates, or metal oxides in our prior art, drawbacks such as dehydrochlorination in the preparation of catalyst or difficulty in removal of catalyst residue from polymer can be overcome while various advantages in our prior art are still maintained.
摘要翻译： 乙烯可以通过使用通过将三价金属卤化物与金属碳酸盐或/和金属碳酸氢盐混合制备的催化剂进行聚合或共聚，使所得混合物与过渡金属化合物在芳族化合物的存在下反应，并使活化 得到的固体产物与有机铝化合物。
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